public inbox for newlib-cvs@sourceware.org
help / color / mirror / Atom feed
* [newlib-cygwin] newlib: libc: move configure into top-level
@ 2022-02-26  4:06 Michael Frysinger
  0 siblings, 0 replies; only message in thread
From: Michael Frysinger @ 2022-02-26  4:06 UTC (permalink / raw)
  To: newlib-cvs

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8343db918f7609c49b6f5eb432a82a5a12ab1dd2

commit 8343db918f7609c49b6f5eb432a82a5a12ab1dd2
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Sat Feb 12 19:49:23 2022 -0500

    newlib: libc: move configure into top-level
    
    This kills off the last configure script under libc/ and folds it
    into the top newlib configure script.  The a lot of the logic was
    already in the top configure script, so move what's left into a
    libc/acinclude.m4 file.

Diff:
---
 newlib/Makefile.in                              |   21 +-
 newlib/configure                                |  954 +++-
 newlib/configure.ac                             |    7 +-
 newlib/libc/Makefile.am                         |    3 -
 newlib/libc/Makefile.in                         |  110 +-
 newlib/libc/acinclude.m4                        |  182 +
 newlib/libc/aclocal.m4                          |  937 ----
 newlib/libc/argz/Makefile.in                    |   43 +-
 newlib/libc/configure                           | 6333 -----------------------
 newlib/libc/configure.ac                        |  237 -
 newlib/libc/ctype/Makefile.in                   |   43 +-
 newlib/libc/errno/Makefile.in                   |   43 +-
 newlib/libc/iconv/Makefile.in                   |   41 +-
 newlib/libc/iconv/ccs/Makefile.in               |   43 +-
 newlib/libc/iconv/ccs/binary/Makefile.in        |   41 +-
 newlib/libc/iconv/ces/Makefile.in               |   43 +-
 newlib/libc/iconv/lib/Makefile.in               |   43 +-
 newlib/libc/locale/Makefile.in                  |   43 +-
 newlib/libc/machine/a29k/Makefile.in            |   43 +-
 newlib/libc/machine/aarch64/Makefile.in         |   43 +-
 newlib/libc/machine/amdgcn/Makefile.in          |   43 +-
 newlib/libc/machine/arc/Makefile.in             |   43 +-
 newlib/libc/machine/arm/Makefile.in             |   43 +-
 newlib/libc/machine/bfin/Makefile.in            |   43 +-
 newlib/libc/machine/cr16/Makefile.in            |   43 +-
 newlib/libc/machine/cris/Makefile.in            |   43 +-
 newlib/libc/machine/crx/Makefile.in             |   43 +-
 newlib/libc/machine/csky/Makefile.in            |   43 +-
 newlib/libc/machine/d10v/Makefile.in            |   43 +-
 newlib/libc/machine/d30v/Makefile.in            |   43 +-
 newlib/libc/machine/epiphany/Makefile.in        |   43 +-
 newlib/libc/machine/fr30/Makefile.in            |   43 +-
 newlib/libc/machine/frv/Makefile.in             |   43 +-
 newlib/libc/machine/ft32/Makefile.in            |   43 +-
 newlib/libc/machine/h8300/Makefile.in           |   43 +-
 newlib/libc/machine/h8500/Makefile.in           |   43 +-
 newlib/libc/machine/hppa/Makefile.in            |   43 +-
 newlib/libc/machine/i386/Makefile.in            |   43 +-
 newlib/libc/machine/i960/Makefile.in            |   43 +-
 newlib/libc/machine/iq2000/Makefile.in          |   43 +-
 newlib/libc/machine/lm32/Makefile.in            |   43 +-
 newlib/libc/machine/m32c/Makefile.in            |   43 +-
 newlib/libc/machine/m32r/Makefile.in            |   43 +-
 newlib/libc/machine/m68hc11/Makefile.in         |   43 +-
 newlib/libc/machine/m68k/Makefile.in            |   43 +-
 newlib/libc/machine/m88k/Makefile.in            |   43 +-
 newlib/libc/machine/mep/Makefile.in             |   43 +-
 newlib/libc/machine/microblaze/Makefile.in      |   43 +-
 newlib/libc/machine/mips/Makefile.in            |   43 +-
 newlib/libc/machine/mn10200/Makefile.in         |   43 +-
 newlib/libc/machine/mn10300/Makefile.in         |   43 +-
 newlib/libc/machine/moxie/Makefile.in           |   43 +-
 newlib/libc/machine/msp430/Makefile.in          |   43 +-
 newlib/libc/machine/mt/Makefile.in              |   43 +-
 newlib/libc/machine/nds32/Makefile.in           |   43 +-
 newlib/libc/machine/necv70/Makefile.in          |   43 +-
 newlib/libc/machine/nios2/Makefile.in           |   43 +-
 newlib/libc/machine/nvptx/Makefile.in           |   43 +-
 newlib/libc/machine/or1k/Makefile.in            |   43 +-
 newlib/libc/machine/powerpc/Makefile.in         |   43 +-
 newlib/libc/machine/pru/Makefile.in             |   43 +-
 newlib/libc/machine/riscv/Makefile.in           |   43 +-
 newlib/libc/machine/rl78/Makefile.in            |   43 +-
 newlib/libc/machine/rx/Makefile.in              |   43 +-
 newlib/libc/machine/sh/Makefile.in              |   43 +-
 newlib/libc/machine/sparc/Makefile.in           |   43 +-
 newlib/libc/machine/spu/Makefile.in             |   43 +-
 newlib/libc/machine/tic4x/Makefile.in           |   43 +-
 newlib/libc/machine/tic6x/Makefile.in           |   43 +-
 newlib/libc/machine/tic80/Makefile.in           |   43 +-
 newlib/libc/machine/v850/Makefile.in            |   43 +-
 newlib/libc/machine/visium/Makefile.in          |   43 +-
 newlib/libc/machine/w65/Makefile.in             |   43 +-
 newlib/libc/machine/x86_64/Makefile.in          |   43 +-
 newlib/libc/machine/xc16x/Makefile.in           |   43 +-
 newlib/libc/machine/xstormy16/Makefile.in       |   43 +-
 newlib/libc/machine/z8k/Makefile.in             |   43 +-
 newlib/libc/misc/Makefile.in                    |   43 +-
 newlib/libc/posix/Makefile.in                   |   43 +-
 newlib/libc/reent/Makefile.in                   |   43 +-
 newlib/libc/search/Makefile.in                  |   43 +-
 newlib/libc/signal/Makefile.in                  |   43 +-
 newlib/libc/ssp/Makefile.in                     |   43 +-
 newlib/libc/stdio/Makefile.in                   |   43 +-
 newlib/libc/stdio64/Makefile.in                 |   43 +-
 newlib/libc/stdlib/Makefile.in                  |   43 +-
 newlib/libc/string/Makefile.in                  |   43 +-
 newlib/libc/sys/a29khif/Makefile.in             |   43 +-
 newlib/libc/sys/amdgcn/Makefile.in              |   43 +-
 newlib/libc/sys/arm/Makefile.in                 |   43 +-
 newlib/libc/sys/d10v/Makefile.in                |   43 +-
 newlib/libc/sys/epiphany/Makefile.in            |   43 +-
 newlib/libc/sys/h8300hms/Makefile.in            |   43 +-
 newlib/libc/sys/h8500hms/Makefile.in            |   43 +-
 newlib/libc/sys/m88kbug/Makefile.in             |   43 +-
 newlib/libc/sys/mmixware/Makefile.in            |   43 +-
 newlib/libc/sys/netware/Makefile.in             |   43 +-
 newlib/libc/sys/or1k/Makefile.in                |   43 +-
 newlib/libc/sys/phoenix/Makefile.in             |   43 +-
 newlib/libc/sys/phoenix/acinclude.m4            |    2 +-
 newlib/libc/sys/phoenix/machine/arm/Makefile.in |   43 +-
 newlib/libc/sys/rdos/Makefile.in                |   43 +-
 newlib/libc/sys/rtems/Makefile.in               |   43 +-
 newlib/libc/sys/sh/Makefile.in                  |   43 +-
 newlib/libc/sys/sysmec/Makefile.in              |   43 +-
 newlib/libc/sys/sysnec810/Makefile.in           |   43 +-
 newlib/libc/sys/sysnecv850/Makefile.in          |   43 +-
 newlib/libc/sys/sysvi386/Makefile.in            |   43 +-
 newlib/libc/sys/sysvnecv70/Makefile.in          |   43 +-
 newlib/libc/sys/tic80/Makefile.in               |   43 +-
 newlib/libc/sys/tirtos/Makefile.in              |   43 +-
 newlib/libc/sys/w65/Makefile.in                 |   43 +-
 newlib/libc/sys/z8ksim/Makefile.in              |   43 +-
 newlib/libc/syscalls/Makefile.in                |   43 +-
 newlib/libc/time/Makefile.in                    |   43 +-
 newlib/libc/unix/Makefile.in                    |   43 +-
 newlib/libc/xdr/Makefile.in                     |   43 +-
 117 files changed, 4268 insertions(+), 9115 deletions(-)

diff --git a/newlib/Makefile.in b/newlib/Makefile.in
index 1734b5de2..1491aa1c3 100644
--- a/newlib/Makefile.in
+++ b/newlib/Makefile.in
@@ -163,7 +163,13 @@ ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../config/lead-dot.m4 \
 	$(top_srcdir)/../config/multi.m4 \
 	$(top_srcdir)/../config/override.m4 $(top_srcdir)/iconv.m4 \
-	$(top_srcdir)/acinclude.m4 $(top_srcdir)/libm/acinclude.m4 \
+	$(top_srcdir)/acinclude.m4 $(top_srcdir)/libc/acinclude.m4 \
+	$(top_srcdir)/libc/machine/nds32/acinclude.m4 \
+	$(top_srcdir)/libc/machine/powerpc/acinclude.m4 \
+	$(top_srcdir)/libc/machine/sh/acinclude.m4 \
+	$(top_srcdir)/libc/machine/spu/acinclude.m4 \
+	$(top_srcdir)/libc/sys/phoenix/acinclude.m4 \
+	$(top_srcdir)/libm/acinclude.m4 \
 	$(top_srcdir)/libm/machine/nds32/acinclude.m4 \
 	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
@@ -1204,6 +1210,16 @@ INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 LDFLAGS = @LDFLAGS@
+LIBC_MACHINE_DIR = @LIBC_MACHINE_DIR@
+LIBC_MACHINE_LIB = @LIBC_MACHINE_LIB@
+LIBC_POSIX_LIB = @LIBC_POSIX_LIB@
+LIBC_SIGNAL_LIB = @LIBC_SIGNAL_LIB@
+LIBC_STDIO64_LIB = @LIBC_STDIO64_LIB@
+LIBC_STDIO_LIB = @LIBC_STDIO_LIB@
+LIBC_SYSCALL_LIB = @LIBC_SYSCALL_LIB@
+LIBC_SYS_LIB = @LIBC_SYS_LIB@
+LIBC_UNIX_LIB = @LIBC_UNIX_LIB@
+LIBC_XDR_LIB = @LIBC_XDR_LIB@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LTLIBOBJS = @LTLIBOBJS@
@@ -1225,11 +1241,13 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PHOENIX_MACHINE_DIR = @PHOENIX_MACHINE_DIR@
 RANLIB = @RANLIB@
 READELF = @READELF@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+SYS_DIR = @SYS_DIR@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_newlib_basedir = @abs_newlib_basedir@
@@ -1282,7 +1300,6 @@ sbindir = @sbindir@
 shared_machine_dir = @shared_machine_dir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
-subdirs = @subdirs@
 sys_dir = @sys_dir@
 sysconfdir = @sysconfdir@
 target_alias = @target_alias@
diff --git a/newlib/configure b/newlib/configure
index 998104ad7..4a145c8ba 100755
--- a/newlib/configure
+++ b/newlib/configure
@@ -583,13 +583,10 @@ PACKAGE_URL=''
 
 ac_unique_file="libc"
 ac_no_link=no
-enable_option_checking=no
 ac_subst_vars='am__EXEEXT_FALSE
 am__EXEEXT_TRUE
 LTLIBOBJS
 LIBOBJS
-HAVE_LONG_DOUBLE_FALSE
-HAVE_LONG_DOUBLE_TRUE
 NEWLIB_PATCHLEVEL_VERSION
 NEWLIB_MINOR_VERSION
 NEWLIB_MAJOR_VERSION
@@ -632,7 +629,52 @@ HAS_NDS32_FPU_DP_FALSE
 HAS_NDS32_FPU_DP_TRUE
 HAS_NDS32_FPU_SP_FALSE
 HAS_NDS32_FPU_SP_TRUE
-subdirs
+MACH_ADD_SETJMP_FALSE
+MACH_ADD_SETJMP_TRUE
+LIBC_MACHINE_LIB
+LIBC_MACHINE_DIR
+HAVE_LIBC_MACHINE_DIR_FALSE
+HAVE_LIBC_MACHINE_DIR_TRUE
+PHOENIX_MACHINE_DIR
+HAVE_SPU_EA_FALSE
+HAVE_SPU_EA_TRUE
+SH64_FALSE
+SH64_TRUE
+HAVE_POWERPC_SPE_FALSE
+HAVE_POWERPC_SPE_TRUE
+HAVE_POWERPC_ALTIVEC_FALSE
+HAVE_POWERPC_ALTIVEC_TRUE
+IS_NDS32_ISA_V3M_FALSE
+IS_NDS32_ISA_V3M_TRUE
+ENABLE_NEWLIB_ICONV_FALSE
+ENABLE_NEWLIB_ICONV_TRUE
+HAVE_LONG_DOUBLE_FALSE
+HAVE_LONG_DOUBLE_TRUE
+LIBC_SYS_LIB
+HAVE_SYS_DIR_FALSE
+HAVE_SYS_DIR_TRUE
+SYS_DIR
+HAVE_UNIX_DIR_FALSE
+HAVE_UNIX_DIR_TRUE
+LIBC_UNIX_LIB
+HAVE_SYSCALL_DIR_FALSE
+HAVE_SYSCALL_DIR_TRUE
+LIBC_SYSCALL_LIB
+HAVE_XDR_DIR_FALSE
+HAVE_XDR_DIR_TRUE
+LIBC_XDR_LIB
+HAVE_POSIX_DIR_FALSE
+HAVE_POSIX_DIR_TRUE
+LIBC_POSIX_LIB
+HAVE_STDIO64_DIR_FALSE
+HAVE_STDIO64_DIR_TRUE
+LIBC_STDIO64_LIB
+HAVE_STDIO_DIR_FALSE
+HAVE_STDIO_DIR_TRUE
+LIBC_STDIO_LIB
+HAVE_SIGNAL_DIR_FALSE
+HAVE_SIGNAL_DIR_TRUE
+LIBC_SIGNAL_LIB
 CC_FOR_NEWLIB
 NEWLIB_HW_FP_FALSE
 NEWLIB_HW_FP_TRUE
@@ -710,6 +752,12 @@ newlib_basedir
 MAY_SUPPLY_SYSCALLS_FALSE
 MAY_SUPPLY_SYSCALLS_TRUE
 multi_basedir
+NEWLIB_RETARGETABLE_LOCKING_FALSE
+NEWLIB_RETARGETABLE_LOCKING_TRUE
+NEWLIB_NANO_FORMATTED_IO_FALSE
+NEWLIB_NANO_FORMATTED_IO_TRUE
+NEWLIB_NANO_MALLOC_FALSE
+NEWLIB_NANO_MALLOC_TRUE
 target_alias
 host_alias
 build_alias
@@ -799,7 +847,7 @@ CPPFLAGS
 CPP
 CCAS
 CCASFLAGS'
-ac_subdirs_all='libc'
+
 
 # Initialize some variables set by options.
 ac_init_help=
@@ -1438,7 +1486,7 @@ Optional Features:
   --enable-newlib-nano-malloc    use small-footprint nano-malloc implementation
   --disable-newlib-unbuf-stream-opt    disable unbuffered stream optimization in streamio
   --enable-lite-exit	enable light weight exit
-  --enable-newlib-nano-formatted-io    Use nano version formatted IO
+  --enable-newlib-nano-formatted-io    Use small-footprint nano-formatted-IO implementation
   --enable-newlib-retargetable-locking    Allow locking routines to be retargeted at link time
   --enable-newlib-long-time_t   define time_t to long
   --enable-newlib-use-gdtoa   Use gdtoa rather than legacy ldtoa
@@ -2239,6 +2287,14 @@ if test "${enable_newlib_nano_malloc+set}" = set; then :
 else
   newlib_nano_malloc=
 fi
+ if test x$newlib_nano_malloc = xyes; then
+  NEWLIB_NANO_MALLOC_TRUE=
+  NEWLIB_NANO_MALLOC_FALSE='#'
+else
+  NEWLIB_NANO_MALLOC_TRUE='#'
+  NEWLIB_NANO_MALLOC_FALSE=
+fi
+
 
 # Check whether --enable-newlib-unbuf-stream-opt was given.
 if test "${enable_newlib_unbuf_stream_opt+set}" = set; then :
@@ -2277,6 +2333,14 @@ else
   newlib_nano_formatted_io=no
 fi
 
+ if test x$newlib_nano_formatted_io = xyes; then
+  NEWLIB_NANO_FORMATTED_IO_TRUE=
+  NEWLIB_NANO_FORMATTED_IO_FALSE='#'
+else
+  NEWLIB_NANO_FORMATTED_IO_TRUE='#'
+  NEWLIB_NANO_FORMATTED_IO_FALSE=
+fi
+
 
 # Check whether --enable-newlib-retargetable-locking was given.
 if test "${enable_newlib_retargetable_locking+set}" = set; then :
@@ -2289,6 +2353,14 @@ else
   newlib_retargetable_locking=no
 fi
 
+ if test x$newlib_retargetable_locking = xyes; then
+  NEWLIB_RETARGETABLE_LOCKING_TRUE=
+  NEWLIB_RETARGETABLE_LOCKING_FALSE='#'
+else
+  NEWLIB_RETARGETABLE_LOCKING_TRUE='#'
+  NEWLIB_RETARGETABLE_LOCKING_FALSE=
+fi
+
 
 # Check whether --enable-newlib-long-time_t was given.
 if test "${enable_newlib_long_time_t+set}" = set; then :
@@ -4730,12 +4802,543 @@ fi
 
 
 
+LIBC_SIGNAL_LIB=
+if test -n "${signal_dir}"; then
+  LIBC_SIGNAL_LIB=${signal_dir}/lib.a
+fi
 
-subdirs="$subdirs libc"
+ if test x${signal_dir} != x; then
+  HAVE_SIGNAL_DIR_TRUE=
+  HAVE_SIGNAL_DIR_FALSE='#'
+else
+  HAVE_SIGNAL_DIR_TRUE='#'
+  HAVE_SIGNAL_DIR_FALSE=
+fi
+
+
+LIBC_STDIO_LIB=
+if test -n "${stdio_dir}"; then
+  LIBC_STDIO_LIB=${stdio_dir}/lib.a
+fi
+
+ if test x${stdio_dir} != x; then
+  HAVE_STDIO_DIR_TRUE=
+  HAVE_STDIO_DIR_FALSE='#'
+else
+  HAVE_STDIO_DIR_TRUE='#'
+  HAVE_STDIO_DIR_FALSE=
+fi
+
+
+LIBC_STDIO64_LIB=
+if test -n "${stdio64_dir}"; then
+  LIBC_STDIO64_LIB=${stdio64_dir}/lib.a
+fi
+
+ if test x${stdio64_dir} != x; then
+  HAVE_STDIO64_DIR_TRUE=
+  HAVE_STDIO64_DIR_FALSE='#'
+else
+  HAVE_STDIO64_DIR_TRUE='#'
+  HAVE_STDIO64_DIR_FALSE=
+fi
+
+
+LIBC_POSIX_LIB=
+if test -n "${posix_dir}"; then
+  LIBC_POSIX_LIB=${posix_dir}/lib.a
+fi
+
+ if test x${posix_dir} != x; then
+  HAVE_POSIX_DIR_TRUE=
+  HAVE_POSIX_DIR_FALSE='#'
+else
+  HAVE_POSIX_DIR_TRUE='#'
+  HAVE_POSIX_DIR_FALSE=
+fi
+
+
+LIBC_XDR_LIB=
+if test -n "${xdr_dir}"; then
+  LIBC_XDR_LIB=${xdr_dir}/lib.a
+fi
+
+ if test x${xdr_dir} != x; then
+  HAVE_XDR_DIR_TRUE=
+  HAVE_XDR_DIR_FALSE='#'
+else
+  HAVE_XDR_DIR_TRUE='#'
+  HAVE_XDR_DIR_FALSE=
+fi
+
+
+LIBC_SYSCALL_LIB=
+if test -n "${syscall_dir}"; then
+  LIBC_SYSCALL_LIB=${syscall_dir}/lib.a
+fi
+
+ if test x${syscall_dir} != x; then
+  HAVE_SYSCALL_DIR_TRUE=
+  HAVE_SYSCALL_DIR_FALSE='#'
+else
+  HAVE_SYSCALL_DIR_TRUE='#'
+  HAVE_SYSCALL_DIR_FALSE=
+fi
+
+
+LIBC_UNIX_LIB=
+if test -n "${unix_dir}"; then
+  LIBC_UNIX_LIB=${unix_dir}/lib.a
+fi
+
+ if test x${unix_dir} != x; then
+  HAVE_UNIX_DIR_TRUE=
+  HAVE_UNIX_DIR_FALSE='#'
+else
+  HAVE_UNIX_DIR_TRUE='#'
+  HAVE_UNIX_DIR_FALSE=
+fi
+
+
+
+LIBC_SYS_LIB=
+if test -n "${sys_dir}"; then
+  case ${sys_dir} in
+    a29khif) ac_config_files="$ac_config_files libc/sys/a29khif/Makefile"
+ ;;
+    amdgcn) ac_config_files="$ac_config_files libc/sys/amdgcn/Makefile"
+ ;;
+    arm) ac_config_files="$ac_config_files libc/sys/arm/Makefile"
+ ;;
+    d10v) ac_config_files="$ac_config_files libc/sys/d10v/Makefile"
+ ;;
+    epiphany) ac_config_files="$ac_config_files libc/sys/epiphany/Makefile"
+ ;;
+    h8300hms) ac_config_files="$ac_config_files libc/sys/h8300hms/Makefile"
+ ;;
+    h8500hms) ac_config_files="$ac_config_files libc/sys/h8500hms/Makefile"
+ ;;
+    m88kbug) ac_config_files="$ac_config_files libc/sys/m88kbug/Makefile"
+ ;;
+    mmixware) ac_config_files="$ac_config_files libc/sys/mmixware/Makefile"
+ ;;
+    netware) ac_config_files="$ac_config_files libc/sys/netware/Makefile"
+ ;;
+    or1k) ac_config_files="$ac_config_files libc/sys/or1k/Makefile"
+ ;;
+    phoenix) ac_config_files="$ac_config_files libc/sys/phoenix/Makefile"
+ ;;
+    rdos) ac_config_files="$ac_config_files libc/sys/rdos/Makefile"
+ ;;
+    rtems) ac_config_files="$ac_config_files libc/sys/rtems/Makefile"
+ ;;
+    sh) ac_config_files="$ac_config_files libc/sys/sh/Makefile"
+ ;;
+    sysmec) ac_config_files="$ac_config_files libc/sys/sysmec/Makefile"
+ ;;
+    sysnec810) ac_config_files="$ac_config_files libc/sys/sysnec810/Makefile"
+ ;;
+    sysnecv850) ac_config_files="$ac_config_files libc/sys/sysnecv850/Makefile"
+ ;;
+    sysvi386) ac_config_files="$ac_config_files libc/sys/sysvi386/Makefile"
+ ;;
+    sysvnecv70) ac_config_files="$ac_config_files libc/sys/sysvnecv70/Makefile"
+ ;;
+    tic80) ac_config_files="$ac_config_files libc/sys/tic80/Makefile"
+ ;;
+    tirtos) ac_config_files="$ac_config_files libc/sys/tirtos/Makefile"
+ ;;
+    w65) ac_config_files="$ac_config_files libc/sys/w65/Makefile"
+ ;;
+    z8ksim) ac_config_files="$ac_config_files libc/sys/z8ksim/Makefile"
+ ;;
+    *) as_fn_error $? "unsupported sys_dir \"${sys_dir}\"" "$LINENO" 5 ;;
+  esac
+
+  SYS_DIR=sys/${sys_dir}
+  LIBC_SYS_LIB=${SYS_DIR}/lib.a
+fi
+
+ if test x${sys_dir} != x; then
+  HAVE_SYS_DIR_TRUE=
+  HAVE_SYS_DIR_FALSE='#'
+else
+  HAVE_SYS_DIR_TRUE='#'
+  HAVE_SYS_DIR_FALSE=
+fi
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double" >&5
+$as_echo_n "checking for long double... " >&6; }
+if ${ac_cv_type_long_double+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$GCC" = yes; then
+       ac_cv_type_long_double=yes
+     else
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* The Stardent Vistra knows sizeof (long double), but does
+		 not support it.  */
+	      long double foo = 0.0L;
+int
+main ()
+{
+static int test_array [1 - 2 * !(/* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
+	      sizeof (double) <= sizeof (long double))];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_type_long_double=yes
+else
+  ac_cv_type_long_double=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_long_double" >&5
+$as_echo "$ac_cv_type_long_double" >&6; }
+  if test $ac_cv_type_long_double = yes; then
+
+$as_echo "#define HAVE_LONG_DOUBLE 1" >>confdefs.h
+
+  fi
+
+ if test x"$ac_cv_type_long_double" = x"yes"; then
+  HAVE_LONG_DOUBLE_TRUE=
+  HAVE_LONG_DOUBLE_FALSE='#'
+else
+  HAVE_LONG_DOUBLE_TRUE='#'
+  HAVE_LONG_DOUBLE_FALSE=
+fi
+
+
+ if test x${newlib_iconv} != x; then
+  ENABLE_NEWLIB_ICONV_TRUE=
+  ENABLE_NEWLIB_ICONV_FALSE='#'
+else
+  ENABLE_NEWLIB_ICONV_TRUE='#'
+  ENABLE_NEWLIB_ICONV_FALSE=
+fi
 
-if test "${libm_machine_dir}" = "nds32"; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for nds32 FPU SP extension" >&5
+if test "${machine_dir}" = "nds32"; then
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for nds32 V3M ISA" >&5
+$as_echo_n "checking for nds32 V3M ISA... " >&6; }
+if ${newlib_cv_nds32_isa_v3m+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __NDS32_ISA_V3M__
+# error "This is nds32_isa_v3m."
+#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  newlib_cv_nds32_isa_v3m="no"
+else
+  newlib_cv_nds32_isa_v3m="yes"
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $newlib_cv_nds32_isa_v3m" >&5
+$as_echo "$newlib_cv_nds32_isa_v3m" >&6; }
+fi
+
+ if test "$newlib_cv_nds32_isa_v3m" = "yes"; then
+  IS_NDS32_ISA_V3M_TRUE=
+  IS_NDS32_ISA_V3M_FALSE='#'
+else
+  IS_NDS32_ISA_V3M_TRUE='#'
+  IS_NDS32_ISA_V3M_FALSE=
+fi
+
+
+HAVE_POWERPC_ALTIVEC=no
+HAVE_POWERPC_SPE=no
+if test "${machine_dir}" = "powerpc"; then
+  case $host in
+    powerpc*-*altivec*) HAVE_POWERPC_ALTIVEC=yes ;;
+    powerpc*-*spe*) HAVE_POWERPC_SPE=yes ;;
+  esac
+fi
+ if test "$HAVE_POWERPC_ALTIVEC" = yes; then
+  HAVE_POWERPC_ALTIVEC_TRUE=
+  HAVE_POWERPC_ALTIVEC_FALSE='#'
+else
+  HAVE_POWERPC_ALTIVEC_TRUE='#'
+  HAVE_POWERPC_ALTIVEC_FALSE=
+fi
+
+ if test "$HAVE_POWERPC_SPE" = yes; then
+  HAVE_POWERPC_SPE_TRUE=
+  HAVE_POWERPC_SPE_FALSE='#'
+else
+  HAVE_POWERPC_SPE_TRUE='#'
+  HAVE_POWERPC_SPE_FALSE=
+fi
+
+
+if test "${machine_dir}" = "sh"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SH5 (64-bit)" >&5
+$as_echo_n "checking for SH5 (64-bit)... " >&6; }
+if ${newlib_cv_sh64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if !defined(__SH5__)
+# error "not SH5"
+#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  newlib_cv_sh64=yes
+else
+  newlib_cv_sh64=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $newlib_cv_sh64" >&5
+$as_echo "$newlib_cv_sh64" >&6; }
+fi
+
+ if test "$newlib_cv_sh64" = yes; then
+  SH64_TRUE=
+  SH64_FALSE='#'
+else
+  SH64_TRUE='#'
+  SH64_FALSE=
+fi
+
+
+if test "${machine_dir}" = "spu"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports __ea" >&5
+$as_echo_n "checking whether the compiler supports __ea... " >&6; }
+if ${newlib_cv_spu_compiler_has_ea+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if !defined (__EA32__) && !defined (__EA64__)
+# error "__ea not supported"
+#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  newlib_cv_spu_compiler_has_ea=yes
+else
+  newlib_cv_spu_compiler_has_ea=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $newlib_cv_spu_compiler_has_ea" >&5
+$as_echo "$newlib_cv_spu_compiler_has_ea" >&6; }
+fi
+ if test "$newlib_cv_spu_compiler_has_ea" = yes; then
+  HAVE_SPU_EA_TRUE=
+  HAVE_SPU_EA_FALSE='#'
+else
+  HAVE_SPU_EA_TRUE='#'
+  HAVE_SPU_EA_FALSE=
+fi
+
+
+if test "$sys_dir" = "phoenix"; then :
+        if test "${machine_dir}" = arm; then :
+  ac_config_files="$ac_config_files libc/sys/phoenix/machine/arm/Makefile"
+
+fi
+
+
+  PHOENIX_MACHINE_DIR=machine/${machine_dir}
+
+fi
+
+
+
+LIBC_MACHINE_LIB=
+if test -n "${machine_dir}"; then
+  case ${machine_dir} in
+    a29k) ac_config_files="$ac_config_files libc/machine/a29k/Makefile"
+ ;;
+    aarch64) ac_config_files="$ac_config_files libc/machine/aarch64/Makefile"
+ ;;
+    amdgcn) ac_config_files="$ac_config_files libc/machine/amdgcn/Makefile"
+ ;;
+    arc) ac_config_files="$ac_config_files libc/machine/arc/Makefile"
+ ;;
+    arm) ac_config_files="$ac_config_files libc/machine/arm/Makefile"
+ ;;
+    bfin) ac_config_files="$ac_config_files libc/machine/bfin/Makefile"
+ ;;
+    cr16) ac_config_files="$ac_config_files libc/machine/cr16/Makefile"
+ ;;
+    cris) ac_config_files="$ac_config_files libc/machine/cris/Makefile"
+ ;;
+    crx) ac_config_files="$ac_config_files libc/machine/crx/Makefile"
+ ;;
+    csky) ac_config_files="$ac_config_files libc/machine/csky/Makefile"
+ ;;
+    d10v) ac_config_files="$ac_config_files libc/machine/d10v/Makefile"
+ ;;
+    d30v) ac_config_files="$ac_config_files libc/machine/d30v/Makefile"
+ ;;
+    epiphany) ac_config_files="$ac_config_files libc/machine/epiphany/Makefile"
+ ;;
+    fr30) ac_config_files="$ac_config_files libc/machine/fr30/Makefile"
+ ;;
+    frv) ac_config_files="$ac_config_files libc/machine/frv/Makefile"
+ ;;
+    ft32) ac_config_files="$ac_config_files libc/machine/ft32/Makefile"
+ ;;
+    h8300) ac_config_files="$ac_config_files libc/machine/h8300/Makefile"
+ ;;
+    h8500) ac_config_files="$ac_config_files libc/machine/h8500/Makefile"
+ ;;
+    hppa) ac_config_files="$ac_config_files libc/machine/hppa/Makefile"
+ ;;
+    i386) ac_config_files="$ac_config_files libc/machine/i386/Makefile"
+ ;;
+    i960) ac_config_files="$ac_config_files libc/machine/i960/Makefile"
+ ;;
+    iq2000) ac_config_files="$ac_config_files libc/machine/iq2000/Makefile"
+ ;;
+    lm32) ac_config_files="$ac_config_files libc/machine/lm32/Makefile"
+ ;;
+    m32c) ac_config_files="$ac_config_files libc/machine/m32c/Makefile"
+ ;;
+    m32r) ac_config_files="$ac_config_files libc/machine/m32r/Makefile"
+ ;;
+    m68hc11) ac_config_files="$ac_config_files libc/machine/m68hc11/Makefile"
+ ;;
+    m68k) ac_config_files="$ac_config_files libc/machine/m68k/Makefile"
+ ;;
+    m88k) ac_config_files="$ac_config_files libc/machine/m88k/Makefile"
+ ;;
+    mep) ac_config_files="$ac_config_files libc/machine/mep/Makefile"
+ ;;
+    microblaze) ac_config_files="$ac_config_files libc/machine/microblaze/Makefile"
+ ;;
+    mips) ac_config_files="$ac_config_files libc/machine/mips/Makefile"
+ ;;
+    riscv) ac_config_files="$ac_config_files libc/machine/riscv/Makefile"
+ ;;
+    mn10200) ac_config_files="$ac_config_files libc/machine/mn10200/Makefile"
+ ;;
+    mn10300) ac_config_files="$ac_config_files libc/machine/mn10300/Makefile"
+ ;;
+    moxie) ac_config_files="$ac_config_files libc/machine/moxie/Makefile"
+ ;;
+    msp430) ac_config_files="$ac_config_files libc/machine/msp430/Makefile"
+ ;;
+    mt) ac_config_files="$ac_config_files libc/machine/mt/Makefile"
+ ;;
+    nds32) ac_config_files="$ac_config_files libc/machine/nds32/Makefile"
+ ;;
+    necv70) ac_config_files="$ac_config_files libc/machine/necv70/Makefile"
+ ;;
+    nios2) ac_config_files="$ac_config_files libc/machine/nios2/Makefile"
+ ;;
+    nvptx) ac_config_files="$ac_config_files libc/machine/nvptx/Makefile"
+ ;;
+    or1k) ac_config_files="$ac_config_files libc/machine/or1k/Makefile"
+ ;;
+    powerpc) ac_config_files="$ac_config_files libc/machine/powerpc/Makefile"
+ ;;
+    pru) ac_config_files="$ac_config_files libc/machine/pru/Makefile"
+ ;;
+    rl78) ac_config_files="$ac_config_files libc/machine/rl78/Makefile"
+ ;;
+    rx) ac_config_files="$ac_config_files libc/machine/rx/Makefile"
+ ;;
+    sh) ac_config_files="$ac_config_files libc/machine/sh/Makefile"
+ ;;
+    sparc) ac_config_files="$ac_config_files libc/machine/sparc/Makefile"
+ ;;
+    spu) ac_config_files="$ac_config_files libc/machine/spu/Makefile"
+ ;;
+    tic4x) ac_config_files="$ac_config_files libc/machine/tic4x/Makefile"
+ ;;
+    tic6x) ac_config_files="$ac_config_files libc/machine/tic6x/Makefile"
+ ;;
+    tic80) ac_config_files="$ac_config_files libc/machine/tic80/Makefile"
+ ;;
+    v850) ac_config_files="$ac_config_files libc/machine/v850/Makefile"
+ ;;
+    visium) ac_config_files="$ac_config_files libc/machine/visium/Makefile"
+ ;;
+    w65) ac_config_files="$ac_config_files libc/machine/w65/Makefile"
+ ;;
+    x86_64) ac_config_files="$ac_config_files libc/machine/x86_64/Makefile"
+ ;;
+    xc16x) ac_config_files="$ac_config_files libc/machine/xc16x/Makefile"
+ ;;
+    xstormy16) ac_config_files="$ac_config_files libc/machine/xstormy16/Makefile"
+ ;;
+    z8k) ac_config_files="$ac_config_files libc/machine/z8k/Makefile"
+ ;;
+    *) as_fn_error $? "unsupported machine_dir \"${machine_dir}\"" "$LINENO" 5 ;;
+  esac
+
+  LIBC_MACHINE_DIR=machine/${machine_dir}
+  LIBC_MACHINE_LIB=${LIBC_MACHINE_DIR}/lib.a
+fi
+ if test "x${LIBC_MACHINE_DIR}" != x; then
+  HAVE_LIBC_MACHINE_DIR_TRUE=
+  HAVE_LIBC_MACHINE_DIR_FALSE='#'
+else
+  HAVE_LIBC_MACHINE_DIR_TRUE='#'
+  HAVE_LIBC_MACHINE_DIR_FALSE=
+fi
+
+
+
+
+ if test "x$mach_add_setjmp" = "xtrue"; then
+  MACH_ADD_SETJMP_TRUE=
+  MACH_ADD_SETJMP_FALSE='#'
+else
+  MACH_ADD_SETJMP_TRUE='#'
+  MACH_ADD_SETJMP_FALSE=
+fi
+
+
+ac_config_files="$ac_config_files libc/Makefile libc/argz/Makefile libc/ctype/Makefile libc/errno/Makefile libc/locale/Makefile libc/misc/Makefile libc/reent/Makefile libc/search/Makefile libc/stdio/Makefile libc/stdio64/Makefile libc/stdlib/Makefile libc/string/Makefile libc/time/Makefile libc/posix/Makefile libc/signal/Makefile libc/syscalls/Makefile libc/unix/Makefile libc/iconv/Makefile libc/iconv/ces/Makefile libc/iconv/ccs/Makefile libc/iconv/ccs/binary/Makefile libc/iconv/lib/Makefile libc/ssp/Makefile libc/xdr/Makefile"
+
+
+if test "${libm_machine_dir}" = "nds32"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nds32 FPU SP extension" >&5
 $as_echo_n "checking for nds32 FPU SP extension... " >&6; }
 if ${newlib_cv_nds32_fpu_sp+:} false; then :
   $as_echo_n "(cached) " >&6
@@ -5998,6 +6601,18 @@ LIBOBJS=$ac_libobjs
 LTLIBOBJS=$ac_ltlibobjs
 
 
+if test -z "${NEWLIB_NANO_MALLOC_TRUE}" && test -z "${NEWLIB_NANO_MALLOC_FALSE}"; then
+  as_fn_error $? "conditional \"NEWLIB_NANO_MALLOC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${NEWLIB_NANO_FORMATTED_IO_TRUE}" && test -z "${NEWLIB_NANO_FORMATTED_IO_FALSE}"; then
+  as_fn_error $? "conditional \"NEWLIB_NANO_FORMATTED_IO\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${NEWLIB_RETARGETABLE_LOCKING_TRUE}" && test -z "${NEWLIB_RETARGETABLE_LOCKING_FALSE}"; then
+  as_fn_error $? "conditional \"NEWLIB_RETARGETABLE_LOCKING\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${MAY_SUPPLY_SYSCALLS_TRUE}" && test -z "${MAY_SUPPLY_SYSCALLS_FALSE}"; then
   as_fn_error $? "conditional \"MAY_SUPPLY_SYSCALLS\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
@@ -6050,6 +6665,74 @@ if test -z "${NEWLIB_HW_FP_TRUE}" && test -z "${NEWLIB_HW_FP_FALSE}"; then
   as_fn_error $? "conditional \"NEWLIB_HW_FP\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${HAVE_SIGNAL_DIR_TRUE}" && test -z "${HAVE_SIGNAL_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SIGNAL_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_STDIO_DIR_TRUE}" && test -z "${HAVE_STDIO_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_STDIO_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_STDIO64_DIR_TRUE}" && test -z "${HAVE_STDIO64_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_STDIO64_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_POSIX_DIR_TRUE}" && test -z "${HAVE_POSIX_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_POSIX_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_XDR_DIR_TRUE}" && test -z "${HAVE_XDR_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_XDR_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SYSCALL_DIR_TRUE}" && test -z "${HAVE_SYSCALL_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SYSCALL_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_UNIX_DIR_TRUE}" && test -z "${HAVE_UNIX_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_UNIX_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SYS_DIR_TRUE}" && test -z "${HAVE_SYS_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SYS_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LONG_DOUBLE_TRUE}" && test -z "${HAVE_LONG_DOUBLE_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_LONG_DOUBLE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_NEWLIB_ICONV_TRUE}" && test -z "${ENABLE_NEWLIB_ICONV_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_NEWLIB_ICONV\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${IS_NDS32_ISA_V3M_TRUE}" && test -z "${IS_NDS32_ISA_V3M_FALSE}"; then
+  as_fn_error $? "conditional \"IS_NDS32_ISA_V3M\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_POWERPC_ALTIVEC_TRUE}" && test -z "${HAVE_POWERPC_ALTIVEC_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_POWERPC_ALTIVEC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_POWERPC_SPE_TRUE}" && test -z "${HAVE_POWERPC_SPE_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_POWERPC_SPE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${SH64_TRUE}" && test -z "${SH64_FALSE}"; then
+  as_fn_error $? "conditional \"SH64\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SPU_EA_TRUE}" && test -z "${HAVE_SPU_EA_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SPU_EA\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LIBC_MACHINE_DIR_TRUE}" && test -z "${HAVE_LIBC_MACHINE_DIR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_LIBC_MACHINE_DIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${MACH_ADD_SETJMP_TRUE}" && test -z "${MACH_ADD_SETJMP_FALSE}"; then
+  as_fn_error $? "conditional \"MACH_ADD_SETJMP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${HAS_NDS32_FPU_SP_TRUE}" && test -z "${HAS_NDS32_FPU_SP_FALSE}"; then
   as_fn_error $? "conditional \"HAS_NDS32_FPU_SP\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
@@ -6726,6 +7409,114 @@ do
     "newlib.h") CONFIG_HEADERS="$CONFIG_HEADERS newlib.h:newlib.hin" ;;
     "_newlib_version.h") CONFIG_HEADERS="$CONFIG_HEADERS _newlib_version.h:_newlib_version.hin" ;;
     "default-1") CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;;
+    "libc/sys/a29khif/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/a29khif/Makefile" ;;
+    "libc/sys/amdgcn/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/amdgcn/Makefile" ;;
+    "libc/sys/arm/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/arm/Makefile" ;;
+    "libc/sys/d10v/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/d10v/Makefile" ;;
+    "libc/sys/epiphany/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/epiphany/Makefile" ;;
+    "libc/sys/h8300hms/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/h8300hms/Makefile" ;;
+    "libc/sys/h8500hms/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/h8500hms/Makefile" ;;
+    "libc/sys/m88kbug/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/m88kbug/Makefile" ;;
+    "libc/sys/mmixware/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/mmixware/Makefile" ;;
+    "libc/sys/netware/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/netware/Makefile" ;;
+    "libc/sys/or1k/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/or1k/Makefile" ;;
+    "libc/sys/phoenix/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/phoenix/Makefile" ;;
+    "libc/sys/rdos/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/rdos/Makefile" ;;
+    "libc/sys/rtems/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/rtems/Makefile" ;;
+    "libc/sys/sh/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/sh/Makefile" ;;
+    "libc/sys/sysmec/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/sysmec/Makefile" ;;
+    "libc/sys/sysnec810/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/sysnec810/Makefile" ;;
+    "libc/sys/sysnecv850/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/sysnecv850/Makefile" ;;
+    "libc/sys/sysvi386/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/sysvi386/Makefile" ;;
+    "libc/sys/sysvnecv70/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/sysvnecv70/Makefile" ;;
+    "libc/sys/tic80/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/tic80/Makefile" ;;
+    "libc/sys/tirtos/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/tirtos/Makefile" ;;
+    "libc/sys/w65/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/w65/Makefile" ;;
+    "libc/sys/z8ksim/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/z8ksim/Makefile" ;;
+    "libc/sys/phoenix/machine/arm/Makefile") CONFIG_FILES="$CONFIG_FILES libc/sys/phoenix/machine/arm/Makefile" ;;
+    "libc/machine/a29k/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/a29k/Makefile" ;;
+    "libc/machine/aarch64/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/aarch64/Makefile" ;;
+    "libc/machine/amdgcn/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/amdgcn/Makefile" ;;
+    "libc/machine/arc/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/arc/Makefile" ;;
+    "libc/machine/arm/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/arm/Makefile" ;;
+    "libc/machine/bfin/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/bfin/Makefile" ;;
+    "libc/machine/cr16/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/cr16/Makefile" ;;
+    "libc/machine/cris/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/cris/Makefile" ;;
+    "libc/machine/crx/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/crx/Makefile" ;;
+    "libc/machine/csky/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/csky/Makefile" ;;
+    "libc/machine/d10v/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/d10v/Makefile" ;;
+    "libc/machine/d30v/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/d30v/Makefile" ;;
+    "libc/machine/epiphany/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/epiphany/Makefile" ;;
+    "libc/machine/fr30/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/fr30/Makefile" ;;
+    "libc/machine/frv/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/frv/Makefile" ;;
+    "libc/machine/ft32/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/ft32/Makefile" ;;
+    "libc/machine/h8300/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/h8300/Makefile" ;;
+    "libc/machine/h8500/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/h8500/Makefile" ;;
+    "libc/machine/hppa/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/hppa/Makefile" ;;
+    "libc/machine/i386/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/i386/Makefile" ;;
+    "libc/machine/i960/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/i960/Makefile" ;;
+    "libc/machine/iq2000/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/iq2000/Makefile" ;;
+    "libc/machine/lm32/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/lm32/Makefile" ;;
+    "libc/machine/m32c/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/m32c/Makefile" ;;
+    "libc/machine/m32r/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/m32r/Makefile" ;;
+    "libc/machine/m68hc11/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/m68hc11/Makefile" ;;
+    "libc/machine/m68k/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/m68k/Makefile" ;;
+    "libc/machine/m88k/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/m88k/Makefile" ;;
+    "libc/machine/mep/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/mep/Makefile" ;;
+    "libc/machine/microblaze/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/microblaze/Makefile" ;;
+    "libc/machine/mips/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/mips/Makefile" ;;
+    "libc/machine/riscv/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/riscv/Makefile" ;;
+    "libc/machine/mn10200/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/mn10200/Makefile" ;;
+    "libc/machine/mn10300/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/mn10300/Makefile" ;;
+    "libc/machine/moxie/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/moxie/Makefile" ;;
+    "libc/machine/msp430/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/msp430/Makefile" ;;
+    "libc/machine/mt/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/mt/Makefile" ;;
+    "libc/machine/nds32/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/nds32/Makefile" ;;
+    "libc/machine/necv70/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/necv70/Makefile" ;;
+    "libc/machine/nios2/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/nios2/Makefile" ;;
+    "libc/machine/nvptx/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/nvptx/Makefile" ;;
+    "libc/machine/or1k/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/or1k/Makefile" ;;
+    "libc/machine/powerpc/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/powerpc/Makefile" ;;
+    "libc/machine/pru/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/pru/Makefile" ;;
+    "libc/machine/rl78/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/rl78/Makefile" ;;
+    "libc/machine/rx/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/rx/Makefile" ;;
+    "libc/machine/sh/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/sh/Makefile" ;;
+    "libc/machine/sparc/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/sparc/Makefile" ;;
+    "libc/machine/spu/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/spu/Makefile" ;;
+    "libc/machine/tic4x/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/tic4x/Makefile" ;;
+    "libc/machine/tic6x/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/tic6x/Makefile" ;;
+    "libc/machine/tic80/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/tic80/Makefile" ;;
+    "libc/machine/v850/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/v850/Makefile" ;;
+    "libc/machine/visium/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/visium/Makefile" ;;
+    "libc/machine/w65/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/w65/Makefile" ;;
+    "libc/machine/x86_64/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/x86_64/Makefile" ;;
+    "libc/machine/xc16x/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/xc16x/Makefile" ;;
+    "libc/machine/xstormy16/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/xstormy16/Makefile" ;;
+    "libc/machine/z8k/Makefile") CONFIG_FILES="$CONFIG_FILES libc/machine/z8k/Makefile" ;;
+    "libc/Makefile") CONFIG_FILES="$CONFIG_FILES libc/Makefile" ;;
+    "libc/argz/Makefile") CONFIG_FILES="$CONFIG_FILES libc/argz/Makefile" ;;
+    "libc/ctype/Makefile") CONFIG_FILES="$CONFIG_FILES libc/ctype/Makefile" ;;
+    "libc/errno/Makefile") CONFIG_FILES="$CONFIG_FILES libc/errno/Makefile" ;;
+    "libc/locale/Makefile") CONFIG_FILES="$CONFIG_FILES libc/locale/Makefile" ;;
+    "libc/misc/Makefile") CONFIG_FILES="$CONFIG_FILES libc/misc/Makefile" ;;
+    "libc/reent/Makefile") CONFIG_FILES="$CONFIG_FILES libc/reent/Makefile" ;;
+    "libc/search/Makefile") CONFIG_FILES="$CONFIG_FILES libc/search/Makefile" ;;
+    "libc/stdio/Makefile") CONFIG_FILES="$CONFIG_FILES libc/stdio/Makefile" ;;
+    "libc/stdio64/Makefile") CONFIG_FILES="$CONFIG_FILES libc/stdio64/Makefile" ;;
+    "libc/stdlib/Makefile") CONFIG_FILES="$CONFIG_FILES libc/stdlib/Makefile" ;;
+    "libc/string/Makefile") CONFIG_FILES="$CONFIG_FILES libc/string/Makefile" ;;
+    "libc/time/Makefile") CONFIG_FILES="$CONFIG_FILES libc/time/Makefile" ;;
+    "libc/posix/Makefile") CONFIG_FILES="$CONFIG_FILES libc/posix/Makefile" ;;
+    "libc/signal/Makefile") CONFIG_FILES="$CONFIG_FILES libc/signal/Makefile" ;;
+    "libc/syscalls/Makefile") CONFIG_FILES="$CONFIG_FILES libc/syscalls/Makefile" ;;
+    "libc/unix/Makefile") CONFIG_FILES="$CONFIG_FILES libc/unix/Makefile" ;;
+    "libc/iconv/Makefile") CONFIG_FILES="$CONFIG_FILES libc/iconv/Makefile" ;;
+    "libc/iconv/ces/Makefile") CONFIG_FILES="$CONFIG_FILES libc/iconv/ces/Makefile" ;;
+    "libc/iconv/ccs/Makefile") CONFIG_FILES="$CONFIG_FILES libc/iconv/ccs/Makefile" ;;
+    "libc/iconv/ccs/binary/Makefile") CONFIG_FILES="$CONFIG_FILES libc/iconv/ccs/binary/Makefile" ;;
+    "libc/iconv/lib/Makefile") CONFIG_FILES="$CONFIG_FILES libc/iconv/lib/Makefile" ;;
+    "libc/ssp/Makefile") CONFIG_FILES="$CONFIG_FILES libc/ssp/Makefile" ;;
+    "libc/xdr/Makefile") CONFIG_FILES="$CONFIG_FILES libc/xdr/Makefile" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
@@ -7364,151 +8155,6 @@ if test "$no_create" != yes; then
   # would make configure fail if this is the last instruction.
   $ac_cs_success || as_fn_exit 1
 fi
-
-#
-# CONFIG_SUBDIRS section.
-#
-if test "$no_recursion" != yes; then
-
-  # Remove --cache-file, --srcdir, and --disable-option-checking arguments
-  # so they do not pile up.
-  ac_sub_configure_args=
-  ac_prev=
-  eval "set x $ac_configure_args"
-  shift
-  for ac_arg
-  do
-    if test -n "$ac_prev"; then
-      ac_prev=
-      continue
-    fi
-    case $ac_arg in
-    -cache-file | --cache-file | --cache-fil | --cache-fi \
-    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
-      ac_prev=cache_file ;;
-    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
-    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
-    | --c=*)
-      ;;
-    --config-cache | -C)
-      ;;
-    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
-      ac_prev=srcdir ;;
-    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
-      ;;
-    -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
-      ac_prev=prefix ;;
-    -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
-      ;;
-    --disable-option-checking)
-      ;;
-    *)
-      case $ac_arg in
-      *\'*) ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
-      esac
-      as_fn_append ac_sub_configure_args " '$ac_arg'" ;;
-    esac
-  done
-
-  # Always prepend --prefix to ensure using the same prefix
-  # in subdir configurations.
-  ac_arg="--prefix=$prefix"
-  case $ac_arg in
-  *\'*) ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
-  esac
-  ac_sub_configure_args="'$ac_arg' $ac_sub_configure_args"
-
-  # Pass --silent
-  if test "$silent" = yes; then
-    ac_sub_configure_args="--silent $ac_sub_configure_args"
-  fi
-
-  # Always prepend --disable-option-checking to silence warnings, since
-  # different subdirs can have different --enable and --with options.
-  ac_sub_configure_args="--disable-option-checking $ac_sub_configure_args"
-
-  ac_popdir=`pwd`
-  for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
-
-    # Do not complain, so a configure script can configure whichever
-    # parts of a large source tree are present.
-    test -d "$srcdir/$ac_dir" || continue
-
-    ac_msg="=== configuring in $ac_dir (`pwd`/$ac_dir)"
-    $as_echo "$as_me:${as_lineno-$LINENO}: $ac_msg" >&5
-    $as_echo "$ac_msg" >&6
-    as_dir="$ac_dir"; as_fn_mkdir_p
-    ac_builddir=.
-
-case "$ac_dir" in
-.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
-*)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
-  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
-  case $ac_top_builddir_sub in
-  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
-  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
-  esac ;;
-esac
-ac_abs_top_builddir=$ac_pwd
-ac_abs_builddir=$ac_pwd$ac_dir_suffix
-# for backward compatibility:
-ac_top_builddir=$ac_top_build_prefix
-
-case $srcdir in
-  .)  # We are building in place.
-    ac_srcdir=.
-    ac_top_srcdir=$ac_top_builddir_sub
-    ac_abs_top_srcdir=$ac_pwd ;;
-  [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
-  *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
-esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
-
-
-    cd "$ac_dir"
-
-    # Check for guested configure; otherwise get Cygnus style configure.
-    if test -f "$ac_srcdir/configure.gnu"; then
-      ac_sub_configure=$ac_srcdir/configure.gnu
-    elif test -f "$ac_srcdir/configure"; then
-      ac_sub_configure=$ac_srcdir/configure
-    elif test -f "$ac_srcdir/configure.in"; then
-      # This should be Cygnus configure.
-      ac_sub_configure=$ac_aux_dir/configure
-    else
-      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: no configuration information is in $ac_dir" >&5
-$as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
-      ac_sub_configure=
-    fi
-
-    # The recursion is here.
-    if test -n "$ac_sub_configure"; then
-      # Make the cache file name correct relative to the subdirectory.
-      case $cache_file in
-      [\\/]* | ?:[\\/]* ) ac_sub_cache_file=$cache_file ;;
-      *) # Relative name.
-	ac_sub_cache_file=$ac_top_build_prefix$cache_file ;;
-      esac
-
-      { $as_echo "$as_me:${as_lineno-$LINENO}: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
-$as_echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
-      # The eval makes quoting arguments work.
-      eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
-	   --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
-	as_fn_error $? "$ac_sub_configure failed for $ac_dir" "$LINENO" 5
-    fi
-
-    cd "$ac_popdir"
-  done
-fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
diff --git a/newlib/configure.ac b/newlib/configure.ac
index b97d7a600..195d336f2 100644
--- a/newlib/configure.ac
+++ b/newlib/configure.ac
@@ -216,6 +216,7 @@ AC_ARG_ENABLE(newlib-nano-malloc,
     *)   AC_MSG_ERROR(bad value ${enableval} for newlib-nano-malloc option) ;;
   esac
  fi], [newlib_nano_malloc=])dnl
+AM_CONDITIONAL(NEWLIB_NANO_MALLOC, test x$newlib_nano_malloc = xyes)
 
 dnl Support --disable-newlib-unbuf-stream-opt
 AC_ARG_ENABLE(newlib-unbuf-stream-opt,
@@ -245,12 +246,13 @@ dnl Support --enable-newlib-nano-formatted-io
 dnl This option is also read in libc/configure.in.  It is repeated
 dnl here so that it shows up in the help text.
 AC_ARG_ENABLE(newlib_nano_formatted_io,
-[  --enable-newlib-nano-formatted-io    Use nano version formatted IO],
+[  --enable-newlib-nano-formatted-io    Use small-footprint nano-formatted-IO implementation],
 [case "${enableval}" in
    yes) newlib_nano_formatted_io=yes ;;
    no)  newlib_nano_formatted_io=no ;;
    *) AC_MSG_ERROR(bad value ${enableval} for newlib-nano-formatted-io) ;;
  esac],[newlib_nano_formatted_io=no])
+AM_CONDITIONAL(NEWLIB_NANO_FORMATTED_IO, test x$newlib_nano_formatted_io = xyes)
 
 dnl Support --enable-retargetable-locking
 dnl This option is also read in libc/configure.in.  It is repeated
@@ -262,6 +264,7 @@ AC_ARG_ENABLE(newlib-retargetable-locking,
    no)  newlib_retargetable_locking=no ;;
    *) AC_MSG_ERROR(bad value ${enableval} for newlib-retargetable-locking) ;;
  esac],[newlib_retargetable_locking=no])
+AM_CONDITIONAL(NEWLIB_RETARGETABLE_LOCKING, test x$newlib_retargetable_locking = xyes)
 
 dnl Support --enable-newlib-long-time_t
 AC_ARG_ENABLE(newlib-long-time_t,
@@ -313,7 +316,7 @@ else
 fi
 AC_SUBST(CC_FOR_NEWLIB)
 
-AC_CONFIG_SUBDIRS(libc)
+m4_include([libc/acinclude.m4])
 m4_include([libm/acinclude.m4])
 
 if test -z "${with_multisubdir}"; then
diff --git a/newlib/libc/Makefile.am b/newlib/libc/Makefile.am
index b3ea976fa..f4cdcf1b6 100644
--- a/newlib/libc/Makefile.am
+++ b/newlib/libc/Makefile.am
@@ -88,6 +88,3 @@ libc.a: $(SUBLIBS)
 	rm -rf tmp
 
 $(SUBLIBS): ; @true
-
-ACLOCAL_AMFLAGS = -I .. -I ../.. -I ../../config
-CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
diff --git a/newlib/libc/Makefile.in b/newlib/libc/Makefile.in
index 64f305aa1..50c5d26f1 100644
--- a/newlib/libc/Makefile.in
+++ b/newlib/libc/Makefile.in
@@ -92,24 +92,26 @@ host_triplet = @host@
 # NB: Machine dir must come last so it can override common objects when creating
 # libc.a below.
 @HAVE_LIBC_MACHINE_DIR_TRUE@am__append_2 = $(LIBC_MACHINE_DIR)
-subdir = .
+subdir = libc
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/../../config/lead-dot.m4 \
-	$(top_srcdir)/../../config/override.m4 \
-	$(top_srcdir)/../acinclude.m4 \
-	$(top_srcdir)/machine/nds32/acinclude.m4 \
-	$(top_srcdir)/machine/powerpc/acinclude.m4 \
-	$(top_srcdir)/machine/sh/acinclude.m4 \
-	$(top_srcdir)/machine/spu/acinclude.m4 \
-	$(top_srcdir)/sys/phoenix/acinclude.m4 \
+am__aclocal_m4_deps = $(top_srcdir)/../config/lead-dot.m4 \
+	$(top_srcdir)/../config/multi.m4 \
+	$(top_srcdir)/../config/override.m4 $(top_srcdir)/iconv.m4 \
+	$(top_srcdir)/acinclude.m4 $(top_srcdir)/libc/acinclude.m4 \
+	$(top_srcdir)/libc/machine/nds32/acinclude.m4 \
+	$(top_srcdir)/libc/machine/powerpc/acinclude.m4 \
+	$(top_srcdir)/libc/machine/sh/acinclude.m4 \
+	$(top_srcdir)/libc/machine/spu/acinclude.m4 \
+	$(top_srcdir)/libc/sys/phoenix/acinclude.m4 \
+	$(top_srcdir)/libm/acinclude.m4 \
+	$(top_srcdir)/libm/machine/nds32/acinclude.m4 \
 	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
-DIST_COMMON = $(srcdir)/Makefile.am $(top_srcdir)/configure \
-	$(am__configure_deps)
-am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
- configure.lineno config.status.lineno
-mkinstalldirs = $(SHELL) $(top_srcdir)/../../mkinstalldirs
+DIST_COMMON = $(srcdir)/Makefile.am
+mkinstalldirs = $(SHELL) $(top_srcdir)/../mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/newlib.h \
+	$(top_builddir)/_newlib_version.h
 CONFIG_CLEAN_FILES =
 CONFIG_CLEAN_VPATH_FILES =
 LIBRARIES = $(noinst_LIBRARIES)
@@ -134,7 +136,7 @@ AM_V_at = $(am__v_at_@AM_V@)
 am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
 am__v_at_0 = @
 am__v_at_1 = 
-DEFAULT_INCLUDES = -I.@am__isrc@
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp =
 am__depfiles_maybe =
 COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
@@ -169,8 +171,7 @@ am__recursive_targets = \
   $(RECURSIVE_TARGETS) \
   $(RECURSIVE_CLEAN_TARGETS) \
   $(am__extra_recursive_targets)
-AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
-	cscope
+AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS
 am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
 # Read a list of newline-separated strings from the standard input,
 # and print each of them once, without duplicates.  Input order is
@@ -190,7 +191,6 @@ am__define_uniq_tagged_files = \
   done | $(am__uniquify_input)`
 ETAGS = etags
 CTAGS = ctags
-CSCOPE = cscope
 DIST_SUBDIRS = argz stdlib ctype search stdio stdio64 string signal \
 	time locale reent errno misc unix posix syscalls iconv xdr ssp \
 	@SYS_DIR@ @LIBC_MACHINE_DIR@ .
@@ -205,15 +205,22 @@ AWK = @AWK@
 CC = @CC@
 CCAS = @CCAS@
 CCASFLAGS = @CCASFLAGS@
+CC_FOR_BUILD = @CC_FOR_BUILD@
+CC_FOR_NEWLIB = @CC_FOR_NEWLIB@
 CFLAGS = @CFLAGS@
 CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
+CRT0 = @CRT0@
+CRT0_DIR = @CRT0_DIR@
+CRT1 = @CRT1@
+CRT1_DIR = @CRT1_DIR@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
 EXEEXT = @EXEEXT@
+EXEEXT_FOR_BUILD = @EXEEXT_FOR_BUILD@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -237,6 +244,10 @@ MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
 NEWLIB_CFLAGS = @NEWLIB_CFLAGS@
+NEWLIB_MAJOR_VERSION = @NEWLIB_MAJOR_VERSION@
+NEWLIB_MINOR_VERSION = @NEWLIB_MINOR_VERSION@
+NEWLIB_PATCHLEVEL_VERSION = @NEWLIB_PATCHLEVEL_VERSION@
+NEWLIB_VERSION = @NEWLIB_VERSION@
 NO_INCLUDE_LIST = @NO_INCLUDE_LIST@
 OBJEXT = @OBJEXT@
 PACKAGE = @PACKAGE@
@@ -295,6 +306,7 @@ lpfx = @lpfx@
 machine_dir = @machine_dir@
 mandir = @mandir@
 mkdir_p = @mkdir_p@
+multi_basedir = @multi_basedir@
 newlib_basedir = @newlib_basedir@
 oldincludedir = @oldincludedir@
 pdfdir = @pdfdir@
@@ -353,44 +365,38 @@ SUBLIBS = \
 	$(LIBC_MACHINE_LIB) \
 	$(LIBC_SYS_LIB)
 
-ACLOCAL_AMFLAGS = -I .. -I ../.. -I ../../config
-CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
 all: all-recursive
 
 .SUFFIXES:
 .SUFFIXES: .c .o .obj
-am--refresh: Makefile
-	@:
 $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
-	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign --ignore-deps'; \
-	      $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign --ignore-deps \
-		&& exit 0; \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
 	      exit 1;; \
 	  esac; \
 	done; \
-	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign --ignore-deps Makefile'; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign --ignore-deps libc/Makefile'; \
 	$(am__cd) $(top_srcdir) && \
-	  $(AUTOMAKE) --foreign --ignore-deps Makefile
+	  $(AUTOMAKE) --foreign --ignore-deps libc/Makefile
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@case '$?' in \
 	  *config.status*) \
-	    echo ' $(SHELL) ./config.status'; \
-	    $(SHELL) ./config.status;; \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
 	  *) \
-	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
-	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
 	esac;
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
-	$(SHELL) ./config.status --recheck
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
 $(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
-	$(am__cd) $(srcdir) && $(AUTOCONF)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
-	$(am__cd) $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(am__aclocal_m4_deps):
 
 clean-noinstLIBRARIES:
@@ -488,12 +494,6 @@ GTAGS:
 	here=`$(am__cd) $(top_builddir) && pwd` \
 	  && $(am__cd) $(top_srcdir) \
 	  && gtags -i $(GTAGS_ARGS) "$$here"
-cscope: cscope.files
-	test ! -s cscope.files \
-	  || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
-clean-cscope:
-	-rm -f cscope.files
-cscope.files: clean-cscope cscopelist
 cscopelist: cscopelist-recursive
 
 cscopelist-am: $(am__tagged_files)
@@ -512,7 +512,6 @@ cscopelist-am: $(am__tagged_files)
 
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
-	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
 check-am: all-am
 check: check-recursive
 all-am: Makefile $(LIBRARIES)
@@ -553,7 +552,6 @@ clean: clean-recursive
 clean-am: clean-generic clean-noinstLIBRARIES mostlyclean-am
 
 distclean: distclean-recursive
-	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
 	-rm -f Makefile
 distclean-am: clean-am distclean-compile distclean-generic \
 	distclean-tags
@@ -599,8 +597,6 @@ install-ps-am:
 installcheck-am:
 
 maintainer-clean: maintainer-clean-recursive
-	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
-	-rm -rf $(top_srcdir)/autom4te.cache
 	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
@@ -620,19 +616,19 @@ uninstall-am:
 
 .MAKE: $(am__recursive_targets) install-am install-strip
 
-.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
-	am--refresh check check-am clean clean-cscope clean-generic \
-	clean-noinstLIBRARIES cscope cscopelist-am ctags ctags-am \
-	distclean distclean-compile distclean-generic distclean-tags \
-	dvi dvi-am html html-am info info-am install install-am \
-	install-data install-data-am install-dvi install-dvi-am \
-	install-exec install-exec-am install-html install-html-am \
-	install-info install-info-am install-man install-pdf \
-	install-pdf-am install-ps install-ps-am install-strip \
-	installcheck installcheck-am installdirs installdirs-am \
-	maintainer-clean maintainer-clean-generic mostlyclean \
-	mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
-	tags tags-am uninstall uninstall-am
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-am clean clean-generic clean-noinstLIBRARIES \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-tags dvi dvi-am html html-am info \
+	info-am install install-am install-data install-data-am \
+	install-dvi install-dvi-am install-exec install-exec-am \
+	install-html install-html-am install-info install-info-am \
+	install-man install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs installdirs-am maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am
 
 .PRECIOUS: Makefile
 
diff --git a/newlib/libc/acinclude.m4 b/newlib/libc/acinclude.m4
new file mode 100644
index 000000000..69c956cb4
--- /dev/null
+++ b/newlib/libc/acinclude.m4
@@ -0,0 +1,182 @@
+dnl For each directory which we may or may not want, we define a name
+dnl for the library and an automake conditional for whether we should
+dnl build the library.
+
+LIBC_SIGNAL_LIB=
+if test -n "${signal_dir}"; then
+  LIBC_SIGNAL_LIB=${signal_dir}/lib.a
+fi
+AC_SUBST(LIBC_SIGNAL_LIB)
+AM_CONDITIONAL(HAVE_SIGNAL_DIR, test x${signal_dir} != x)
+
+LIBC_STDIO_LIB=
+if test -n "${stdio_dir}"; then
+  LIBC_STDIO_LIB=${stdio_dir}/lib.a
+fi
+AC_SUBST(LIBC_STDIO_LIB)
+AM_CONDITIONAL(HAVE_STDIO_DIR, test x${stdio_dir} != x)
+
+LIBC_STDIO64_LIB=
+if test -n "${stdio64_dir}"; then
+  LIBC_STDIO64_LIB=${stdio64_dir}/lib.a
+fi
+AC_SUBST(LIBC_STDIO64_LIB)
+AM_CONDITIONAL(HAVE_STDIO64_DIR, test x${stdio64_dir} != x)
+
+LIBC_POSIX_LIB=
+if test -n "${posix_dir}"; then
+  LIBC_POSIX_LIB=${posix_dir}/lib.a
+fi
+AC_SUBST(LIBC_POSIX_LIB)
+AM_CONDITIONAL(HAVE_POSIX_DIR, test x${posix_dir} != x)
+
+LIBC_XDR_LIB=
+if test -n "${xdr_dir}"; then
+  LIBC_XDR_LIB=${xdr_dir}/lib.a
+fi
+AC_SUBST(LIBC_XDR_LIB)
+AM_CONDITIONAL(HAVE_XDR_DIR, test x${xdr_dir} != x)
+
+LIBC_SYSCALL_LIB=
+if test -n "${syscall_dir}"; then
+  LIBC_SYSCALL_LIB=${syscall_dir}/lib.a
+fi
+AC_SUBST(LIBC_SYSCALL_LIB)
+AM_CONDITIONAL(HAVE_SYSCALL_DIR, test x${syscall_dir} != x)
+
+LIBC_UNIX_LIB=
+if test -n "${unix_dir}"; then
+  LIBC_UNIX_LIB=${unix_dir}/lib.a
+fi
+AC_SUBST(LIBC_UNIX_LIB)
+AM_CONDITIONAL(HAVE_UNIX_DIR, test x${unix_dir} != x)
+
+dnl We always recur into sys and machine, and let them decide what to
+dnl do.  However, we do need to know whether they will produce a library.
+
+LIBC_SYS_LIB=
+if test -n "${sys_dir}"; then
+  case ${sys_dir} in
+    a29khif) AC_CONFIG_FILES([libc/sys/a29khif/Makefile]) ;;
+    amdgcn) AC_CONFIG_FILES([libc/sys/amdgcn/Makefile]) ;;
+    arm) AC_CONFIG_FILES([libc/sys/arm/Makefile]) ;;
+    d10v) AC_CONFIG_FILES([libc/sys/d10v/Makefile]) ;;
+    epiphany) AC_CONFIG_FILES([libc/sys/epiphany/Makefile]) ;;
+    h8300hms) AC_CONFIG_FILES([libc/sys/h8300hms/Makefile]) ;;
+    h8500hms) AC_CONFIG_FILES([libc/sys/h8500hms/Makefile]) ;;
+    m88kbug) AC_CONFIG_FILES([libc/sys/m88kbug/Makefile]) ;;
+    mmixware) AC_CONFIG_FILES([libc/sys/mmixware/Makefile]) ;;
+    netware) AC_CONFIG_FILES([libc/sys/netware/Makefile]) ;;
+    or1k) AC_CONFIG_FILES([libc/sys/or1k/Makefile]) ;;
+    phoenix) AC_CONFIG_FILES([libc/sys/phoenix/Makefile]) ;;
+    rdos) AC_CONFIG_FILES([libc/sys/rdos/Makefile]) ;;
+    rtems) AC_CONFIG_FILES([libc/sys/rtems/Makefile]) ;;
+    sh) AC_CONFIG_FILES([libc/sys/sh/Makefile]) ;;
+    sysmec) AC_CONFIG_FILES([libc/sys/sysmec/Makefile]) ;;
+    sysnec810) AC_CONFIG_FILES([libc/sys/sysnec810/Makefile]) ;;
+    sysnecv850) AC_CONFIG_FILES([libc/sys/sysnecv850/Makefile]) ;;
+    sysvi386) AC_CONFIG_FILES([libc/sys/sysvi386/Makefile]) ;;
+    sysvnecv70) AC_CONFIG_FILES([libc/sys/sysvnecv70/Makefile]) ;;
+    tic80) AC_CONFIG_FILES([libc/sys/tic80/Makefile]) ;;
+    tirtos) AC_CONFIG_FILES([libc/sys/tirtos/Makefile]) ;;
+    w65) AC_CONFIG_FILES([libc/sys/w65/Makefile]) ;;
+    z8ksim) AC_CONFIG_FILES([libc/sys/z8ksim/Makefile]) ;;
+    *) AC_MSG_ERROR([unsupported sys_dir "${sys_dir}"]) ;;
+  esac
+
+  SYS_DIR=sys/${sys_dir}
+  LIBC_SYS_LIB=${SYS_DIR}/lib.a
+fi
+AC_SUBST(SYS_DIR)
+AM_CONDITIONAL(HAVE_SYS_DIR, test x${sys_dir} != x)
+AC_SUBST(LIBC_SYS_LIB)
+
+AC_TYPE_LONG_DOUBLE
+AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes")
+
+dnl iconv library will be compiled if --enable-newlib-iconv option is enabled
+AM_CONDITIONAL(ENABLE_NEWLIB_ICONV, test x${newlib_iconv} != x)
+
+dnl We have to include these unconditionally since machines might want to use
+dnl AM_CONDITIONAL in their subdirs.
+m4_include([libc/machine/nds32/acinclude.m4])
+m4_include([libc/machine/powerpc/acinclude.m4])
+m4_include([libc/machine/sh/acinclude.m4])
+m4_include([libc/machine/spu/acinclude.m4])
+m4_include([libc/sys/phoenix/acinclude.m4])
+
+LIBC_MACHINE_LIB=
+if test -n "${machine_dir}"; then
+  case ${machine_dir} in
+    a29k) AC_CONFIG_FILES([libc/machine/a29k/Makefile]) ;;
+    aarch64) AC_CONFIG_FILES([libc/machine/aarch64/Makefile]) ;;
+    amdgcn) AC_CONFIG_FILES([libc/machine/amdgcn/Makefile]) ;;
+    arc) AC_CONFIG_FILES([libc/machine/arc/Makefile]) ;;
+    arm) AC_CONFIG_FILES([libc/machine/arm/Makefile]) ;;
+    bfin) AC_CONFIG_FILES([libc/machine/bfin/Makefile]) ;;
+    cr16) AC_CONFIG_FILES([libc/machine/cr16/Makefile]) ;;
+    cris) AC_CONFIG_FILES([libc/machine/cris/Makefile]) ;;
+    crx) AC_CONFIG_FILES([libc/machine/crx/Makefile]) ;;
+    csky) AC_CONFIG_FILES([libc/machine/csky/Makefile]) ;;
+    d10v) AC_CONFIG_FILES([libc/machine/d10v/Makefile]) ;;
+    d30v) AC_CONFIG_FILES([libc/machine/d30v/Makefile]) ;;
+    epiphany) AC_CONFIG_FILES([libc/machine/epiphany/Makefile]) ;;
+    fr30) AC_CONFIG_FILES([libc/machine/fr30/Makefile]) ;;
+    frv) AC_CONFIG_FILES([libc/machine/frv/Makefile]) ;;
+    ft32) AC_CONFIG_FILES([libc/machine/ft32/Makefile]) ;;
+    h8300) AC_CONFIG_FILES([libc/machine/h8300/Makefile]) ;;
+    h8500) AC_CONFIG_FILES([libc/machine/h8500/Makefile]) ;;
+    hppa) AC_CONFIG_FILES([libc/machine/hppa/Makefile]) ;;
+    i386) AC_CONFIG_FILES([libc/machine/i386/Makefile]) ;;
+    i960) AC_CONFIG_FILES([libc/machine/i960/Makefile]) ;;
+    iq2000) AC_CONFIG_FILES([libc/machine/iq2000/Makefile]) ;;
+    lm32) AC_CONFIG_FILES([libc/machine/lm32/Makefile]) ;;
+    m32c) AC_CONFIG_FILES([libc/machine/m32c/Makefile]) ;;
+    m32r) AC_CONFIG_FILES([libc/machine/m32r/Makefile]) ;;
+    m68hc11) AC_CONFIG_FILES([libc/machine/m68hc11/Makefile]) ;;
+    m68k) AC_CONFIG_FILES([libc/machine/m68k/Makefile]) ;;
+    m88k) AC_CONFIG_FILES([libc/machine/m88k/Makefile]) ;;
+    mep) AC_CONFIG_FILES([libc/machine/mep/Makefile]) ;;
+    microblaze) AC_CONFIG_FILES([libc/machine/microblaze/Makefile]) ;;
+    mips) AC_CONFIG_FILES([libc/machine/mips/Makefile]) ;;
+    riscv) AC_CONFIG_FILES([libc/machine/riscv/Makefile]) ;;
+    mn10200) AC_CONFIG_FILES([libc/machine/mn10200/Makefile]) ;;
+    mn10300) AC_CONFIG_FILES([libc/machine/mn10300/Makefile]) ;;
+    moxie) AC_CONFIG_FILES([libc/machine/moxie/Makefile]) ;;
+    msp430) AC_CONFIG_FILES([libc/machine/msp430/Makefile]) ;;
+    mt) AC_CONFIG_FILES([libc/machine/mt/Makefile]) ;;
+    nds32) AC_CONFIG_FILES([libc/machine/nds32/Makefile]) ;;
+    necv70) AC_CONFIG_FILES([libc/machine/necv70/Makefile]) ;;
+    nios2) AC_CONFIG_FILES([libc/machine/nios2/Makefile]) ;;
+    nvptx) AC_CONFIG_FILES([libc/machine/nvptx/Makefile]) ;;
+    or1k) AC_CONFIG_FILES([libc/machine/or1k/Makefile]) ;;
+    powerpc) AC_CONFIG_FILES([libc/machine/powerpc/Makefile]) ;;
+    pru) AC_CONFIG_FILES([libc/machine/pru/Makefile]) ;;
+    rl78) AC_CONFIG_FILES([libc/machine/rl78/Makefile]) ;;
+    rx) AC_CONFIG_FILES([libc/machine/rx/Makefile]) ;;
+    sh) AC_CONFIG_FILES([libc/machine/sh/Makefile]) ;;
+    sparc) AC_CONFIG_FILES([libc/machine/sparc/Makefile]) ;;
+    spu) AC_CONFIG_FILES([libc/machine/spu/Makefile]) ;;
+    tic4x) AC_CONFIG_FILES([libc/machine/tic4x/Makefile]) ;;
+    tic6x) AC_CONFIG_FILES([libc/machine/tic6x/Makefile]) ;;
+    tic80) AC_CONFIG_FILES([libc/machine/tic80/Makefile]) ;;
+    v850) AC_CONFIG_FILES([libc/machine/v850/Makefile]) ;;
+    visium) AC_CONFIG_FILES([libc/machine/visium/Makefile]) ;;
+    w65) AC_CONFIG_FILES([libc/machine/w65/Makefile]) ;;
+    x86_64) AC_CONFIG_FILES([libc/machine/x86_64/Makefile]) ;;
+    xc16x) AC_CONFIG_FILES([libc/machine/xc16x/Makefile]) ;;
+    xstormy16) AC_CONFIG_FILES([libc/machine/xstormy16/Makefile]) ;;
+    z8k) AC_CONFIG_FILES([libc/machine/z8k/Makefile]) ;;
+    *) AC_MSG_ERROR([unsupported machine_dir "${machine_dir}"]) ;;
+  esac
+
+  LIBC_MACHINE_DIR=machine/${machine_dir}
+  LIBC_MACHINE_LIB=${LIBC_MACHINE_DIR}/lib.a
+fi
+AM_CONDITIONAL(HAVE_LIBC_MACHINE_DIR, test "x${LIBC_MACHINE_DIR}" != x)
+AC_SUBST(LIBC_MACHINE_DIR)
+AC_SUBST(LIBC_MACHINE_LIB)
+
+AM_CONDITIONAL(MACH_ADD_SETJMP, test "x$mach_add_setjmp" = "xtrue")
+
+AC_CONFIG_FILES([libc/Makefile libc/argz/Makefile libc/ctype/Makefile libc/errno/Makefile libc/locale/Makefile libc/misc/Makefile libc/reent/Makefile libc/search/Makefile libc/stdio/Makefile libc/stdio64/Makefile libc/stdlib/Makefile libc/string/Makefile libc/time/Makefile libc/posix/Makefile libc/signal/Makefile libc/syscalls/Makefile libc/unix/Makefile libc/iconv/Makefile libc/iconv/ces/Makefile libc/iconv/ccs/Makefile libc/iconv/ccs/binary/Makefile libc/iconv/lib/Makefile libc/ssp/Makefile libc/xdr/Makefile])
diff --git a/newlib/libc/aclocal.m4 b/newlib/libc/aclocal.m4
deleted file mode 100644
index 9f8ed8209..000000000
--- a/newlib/libc/aclocal.m4
+++ /dev/null
@@ -1,937 +0,0 @@
-# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
-m4_ifndef([AC_AUTOCONF_VERSION],
-  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
-m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
-[m4_warning([this file was generated for autoconf 2.69.
-You have another version of autoconf.  It may work, but is not guaranteed to.
-If you have problems, you may need to regenerate the build system entirely.
-To do so, use the procedure documented by the package, typically 'autoreconf'.])])
-
-# Copyright (C) 2002-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_AUTOMAKE_VERSION(VERSION)
-# ----------------------------
-# Automake X.Y traces this macro to ensure aclocal.m4 has been
-# generated from the m4 files accompanying Automake X.Y.
-# (This private macro should not be called outside this file.)
-AC_DEFUN([AM_AUTOMAKE_VERSION],
-[am__api_version='1.15'
-dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
-dnl require some minimum version.  Point them to the right macro.
-m4_if([$1], [1.15.1], [],
-      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
-])
-
-# _AM_AUTOCONF_VERSION(VERSION)
-# -----------------------------
-# aclocal traces this macro to find the Autoconf version.
-# This is a private macro too.  Using m4_define simplifies
-# the logic in aclocal, which can simply ignore this definition.
-m4_define([_AM_AUTOCONF_VERSION], [])
-
-# AM_SET_CURRENT_AUTOMAKE_VERSION
-# -------------------------------
-# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
-# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
-AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
-[AM_AUTOMAKE_VERSION([1.15.1])dnl
-m4_ifndef([AC_AUTOCONF_VERSION],
-  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
-_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
-
-# Copyright (C) 2011-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_PROG_AR([ACT-IF-FAIL])
-# -------------------------
-# Try to determine the archiver interface, and trigger the ar-lib wrapper
-# if it is needed.  If the detection of archiver interface fails, run
-# ACT-IF-FAIL (default is to abort configure with a proper error message).
-AC_DEFUN([AM_PROG_AR],
-[AC_BEFORE([$0], [LT_INIT])dnl
-AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
-AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-AC_REQUIRE_AUX_FILE([ar-lib])dnl
-AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
-: ${AR=ar}
-
-AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
-  [AC_LANG_PUSH([C])
-   am_cv_ar_interface=ar
-   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
-     [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
-      AC_TRY_EVAL([am_ar_try])
-      if test "$ac_status" -eq 0; then
-        am_cv_ar_interface=ar
-      else
-        am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
-        AC_TRY_EVAL([am_ar_try])
-        if test "$ac_status" -eq 0; then
-          am_cv_ar_interface=lib
-        else
-          am_cv_ar_interface=unknown
-        fi
-      fi
-      rm -f conftest.lib libconftest.a
-     ])
-   AC_LANG_POP([C])])
-
-case $am_cv_ar_interface in
-ar)
-  ;;
-lib)
-  # Microsoft lib, so override with the ar-lib wrapper script.
-  # FIXME: It is wrong to rewrite AR.
-  # But if we don't then we get into trouble of one sort or another.
-  # A longer-term fix would be to have automake use am__AR in this case,
-  # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
-  # similar.
-  AR="$am_aux_dir/ar-lib $AR"
-  ;;
-unknown)
-  m4_default([$1],
-             [AC_MSG_ERROR([could not determine $AR interface])])
-  ;;
-esac
-AC_SUBST([AR])dnl
-])
-
-# Figure out how to run the assembler.                      -*- Autoconf -*-
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_PROG_AS
-# ----------
-AC_DEFUN([AM_PROG_AS],
-[# By default we simply use the C compiler to build assembly code.
-AC_REQUIRE([AC_PROG_CC])
-test "${CCAS+set}" = set || CCAS=$CC
-test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
-AC_ARG_VAR([CCAS],      [assembler compiler command (defaults to CC)])
-AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
-_AM_IF_OPTION([no-dependencies],, [_AM_DEPENDENCIES([CCAS])])dnl
-])
-
-# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
-# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
-# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
-#
-# Of course, Automake must honor this variable whenever it calls a
-# tool from the auxiliary directory.  The problem is that $srcdir (and
-# therefore $ac_aux_dir as well) can be either absolute or relative,
-# depending on how configure is run.  This is pretty annoying, since
-# it makes $ac_aux_dir quite unusable in subdirectories: in the top
-# source directory, any form will work fine, but in subdirectories a
-# relative path needs to be adjusted first.
-#
-# $ac_aux_dir/missing
-#    fails when called from a subdirectory if $ac_aux_dir is relative
-# $top_srcdir/$ac_aux_dir/missing
-#    fails if $ac_aux_dir is absolute,
-#    fails when called from a subdirectory in a VPATH build with
-#          a relative $ac_aux_dir
-#
-# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
-# are both prefixed by $srcdir.  In an in-source build this is usually
-# harmless because $srcdir is '.', but things will broke when you
-# start a VPATH build or use an absolute $srcdir.
-#
-# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
-# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
-#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
-# and then we would define $MISSING as
-#   MISSING="\${SHELL} $am_aux_dir/missing"
-# This will work as long as MISSING is not called from configure, because
-# unfortunately $(top_srcdir) has no meaning in configure.
-# However there are other variables, like CC, which are often used in
-# configure, and could therefore not use this "fixed" $ac_aux_dir.
-#
-# Another solution, used here, is to always expand $ac_aux_dir to an
-# absolute PATH.  The drawback is that using absolute paths prevent a
-# configured tree to be moved without reconfiguration.
-
-AC_DEFUN([AM_AUX_DIR_EXPAND],
-[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-# Expand $ac_aux_dir to an absolute path.
-am_aux_dir=`cd "$ac_aux_dir" && pwd`
-])
-
-# AM_CONDITIONAL                                            -*- Autoconf -*-
-
-# Copyright (C) 1997-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_CONDITIONAL(NAME, SHELL-CONDITION)
-# -------------------------------------
-# Define a conditional.
-AC_DEFUN([AM_CONDITIONAL],
-[AC_PREREQ([2.52])dnl
- m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
-       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
-AC_SUBST([$1_TRUE])dnl
-AC_SUBST([$1_FALSE])dnl
-_AM_SUBST_NOTMAKE([$1_TRUE])dnl
-_AM_SUBST_NOTMAKE([$1_FALSE])dnl
-m4_define([_AM_COND_VALUE_$1], [$2])dnl
-if $2; then
-  $1_TRUE=
-  $1_FALSE='#'
-else
-  $1_TRUE='#'
-  $1_FALSE=
-fi
-AC_CONFIG_COMMANDS_PRE(
-[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
-  AC_MSG_ERROR([[conditional "$1" was never defined.
-Usually this means the macro was only invoked conditionally.]])
-fi])])
-
-# Do all the work for Automake.                             -*- Autoconf -*-
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This macro actually does too much.  Some checks are only needed if
-# your package does certain things.  But this isn't really a big deal.
-
-dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
-m4_define([AC_PROG_CC],
-m4_defn([AC_PROG_CC])
-[_AM_PROG_CC_C_O
-])
-
-# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
-# AM_INIT_AUTOMAKE([OPTIONS])
-# -----------------------------------------------
-# The call with PACKAGE and VERSION arguments is the old style
-# call (pre autoconf-2.50), which is being phased out.  PACKAGE
-# and VERSION should now be passed to AC_INIT and removed from
-# the call to AM_INIT_AUTOMAKE.
-# We support both call styles for the transition.  After
-# the next Automake release, Autoconf can make the AC_INIT
-# arguments mandatory, and then we can depend on a new Autoconf
-# release and drop the old call support.
-AC_DEFUN([AM_INIT_AUTOMAKE],
-[AC_PREREQ([2.65])dnl
-dnl Autoconf wants to disallow AM_ names.  We explicitly allow
-dnl the ones we care about.
-m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
-AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
-AC_REQUIRE([AC_PROG_INSTALL])dnl
-if test "`cd $srcdir && pwd`" != "`pwd`"; then
-  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
-  # is not polluted with repeated "-I."
-  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
-  # test to see if srcdir already configured
-  if test -f $srcdir/config.status; then
-    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
-  fi
-fi
-
-# test whether we have cygpath
-if test -z "$CYGPATH_W"; then
-  if (cygpath --version) >/dev/null 2>/dev/null; then
-    CYGPATH_W='cygpath -w'
-  else
-    CYGPATH_W=echo
-  fi
-fi
-AC_SUBST([CYGPATH_W])
-
-# Define the identity of the package.
-dnl Distinguish between old-style and new-style calls.
-m4_ifval([$2],
-[AC_DIAGNOSE([obsolete],
-             [$0: two- and three-arguments forms are deprecated.])
-m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
- AC_SUBST([PACKAGE], [$1])dnl
- AC_SUBST([VERSION], [$2])],
-[_AM_SET_OPTIONS([$1])dnl
-dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
-m4_if(
-  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
-  [ok:ok],,
-  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
- AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
- AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
-
-_AM_IF_OPTION([no-define],,
-[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
- AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
-
-# Some tools Automake needs.
-AC_REQUIRE([AM_SANITY_CHECK])dnl
-AC_REQUIRE([AC_ARG_PROGRAM])dnl
-AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
-AM_MISSING_PROG([AUTOCONF], [autoconf])
-AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
-AM_MISSING_PROG([AUTOHEADER], [autoheader])
-AM_MISSING_PROG([MAKEINFO], [makeinfo])
-AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
-AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
-AC_REQUIRE([AC_PROG_MKDIR_P])dnl
-# For better backward compatibility.  To be removed once Automake 1.9.x
-# dies out for good.  For more background, see:
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
-AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
-# We need awk for the "check" target (and possibly the TAP driver).  The
-# system "awk" is bad on some platforms.
-AC_REQUIRE([AC_PROG_AWK])dnl
-AC_REQUIRE([AC_PROG_MAKE_SET])dnl
-AC_REQUIRE([AM_SET_LEADING_DOT])dnl
-_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
-	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
-			     [_AM_PROG_TAR([v7])])])
-_AM_IF_OPTION([no-dependencies],,
-[AC_PROVIDE_IFELSE([AC_PROG_CC],
-		  [_AM_DEPENDENCIES([CC])],
-		  [m4_define([AC_PROG_CC],
-			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
-AC_PROVIDE_IFELSE([AC_PROG_CXX],
-		  [_AM_DEPENDENCIES([CXX])],
-		  [m4_define([AC_PROG_CXX],
-			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
-AC_PROVIDE_IFELSE([AC_PROG_OBJC],
-		  [_AM_DEPENDENCIES([OBJC])],
-		  [m4_define([AC_PROG_OBJC],
-			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
-AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
-		  [_AM_DEPENDENCIES([OBJCXX])],
-		  [m4_define([AC_PROG_OBJCXX],
-			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
-])
-AC_REQUIRE([AM_SILENT_RULES])dnl
-dnl The testsuite driver may need to know about EXEEXT, so add the
-dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
-dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
-AC_CONFIG_COMMANDS_PRE(dnl
-[m4_provide_if([_AM_COMPILER_EXEEXT],
-  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
-
-# POSIX will say in a future version that running "rm -f" with no argument
-# is OK; and we want to be able to make that assumption in our Makefile
-# recipes.  So use an aggressive probe to check that the usage we want is
-# actually supported "in the wild" to an acceptable degree.
-# See automake bug#10828.
-# To make any issue more visible, cause the running configure to be aborted
-# by default if the 'rm' program in use doesn't match our expectations; the
-# user can still override this though.
-if rm -f && rm -fr && rm -rf; then : OK; else
-  cat >&2 <<'END'
-Oops!
-
-Your 'rm' program seems unable to run without file operands specified
-on the command line, even when the '-f' option is present.  This is contrary
-to the behaviour of most rm programs out there, and not conforming with
-the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
-
-Please tell bug-automake@gnu.org about your system, including the value
-of your $PATH and any error possibly output before this message.  This
-can help us improve future automake versions.
-
-END
-  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
-    echo 'Configuration will proceed anyway, since you have set the' >&2
-    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
-    echo >&2
-  else
-    cat >&2 <<'END'
-Aborting the configuration process, to ensure you take notice of the issue.
-
-You can download and install GNU coreutils to get an 'rm' implementation
-that behaves properly: <http://www.gnu.org/software/coreutils/>.
-
-If you want to complete the configuration process using your problematic
-'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
-to "yes", and re-run configure.
-
-END
-    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
-  fi
-fi
-dnl The trailing newline in this macro's definition is deliberate, for
-dnl backward compatibility and to allow trailing 'dnl'-style comments
-dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
-])
-
-dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
-dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
-dnl mangled by Autoconf and run in a shell conditional statement.
-m4_define([_AC_COMPILER_EXEEXT],
-m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
-
-# When config.status generates a header, we must update the stamp-h file.
-# This file resides in the same directory as the config header
-# that is generated.  The stamp files are numbered to have different names.
-
-# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
-# loop where config.status creates the headers, so we can generate
-# our stamp files there.
-AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
-[# Compute $1's index in $config_headers.
-_am_arg=$1
-_am_stamp_count=1
-for _am_header in $config_headers :; do
-  case $_am_header in
-    $_am_arg | $_am_arg:* )
-      break ;;
-    * )
-      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
-  esac
-done
-echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_PROG_INSTALL_SH
-# ------------------
-# Define $install_sh.
-AC_DEFUN([AM_PROG_INSTALL_SH],
-[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-if test x"${install_sh+set}" != xset; then
-  case $am_aux_dir in
-  *\ * | *\	*)
-    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
-  *)
-    install_sh="\${SHELL} $am_aux_dir/install-sh"
-  esac
-fi
-AC_SUBST([install_sh])])
-
-# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
-# From Jim Meyering
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_MAINTAINER_MODE([DEFAULT-MODE])
-# ----------------------------------
-# Control maintainer-specific portions of Makefiles.
-# Default is to disable them, unless 'enable' is passed literally.
-# For symmetry, 'disable' may be passed as well.  Anyway, the user
-# can override the default with the --enable/--disable switch.
-AC_DEFUN([AM_MAINTAINER_MODE],
-[m4_case(m4_default([$1], [disable]),
-       [enable], [m4_define([am_maintainer_other], [disable])],
-       [disable], [m4_define([am_maintainer_other], [enable])],
-       [m4_define([am_maintainer_other], [enable])
-        m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
-AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
-  dnl maintainer-mode's default is 'disable' unless 'enable' is passed
-  AC_ARG_ENABLE([maintainer-mode],
-    [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
-      am_maintainer_other[ make rules and dependencies not useful
-      (and sometimes confusing) to the casual installer])],
-    [USE_MAINTAINER_MODE=$enableval],
-    [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
-  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
-  AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
-  MAINT=$MAINTAINER_MODE_TRUE
-  AC_SUBST([MAINT])dnl
-]
-)
-
-# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
-
-# Copyright (C) 1997-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_MISSING_PROG(NAME, PROGRAM)
-# ------------------------------
-AC_DEFUN([AM_MISSING_PROG],
-[AC_REQUIRE([AM_MISSING_HAS_RUN])
-$1=${$1-"${am_missing_run}$2"}
-AC_SUBST($1)])
-
-# AM_MISSING_HAS_RUN
-# ------------------
-# Define MISSING if not defined so far and test if it is modern enough.
-# If it is, set am_missing_run to use it, otherwise, to nothing.
-AC_DEFUN([AM_MISSING_HAS_RUN],
-[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-AC_REQUIRE_AUX_FILE([missing])dnl
-if test x"${MISSING+set}" != xset; then
-  case $am_aux_dir in
-  *\ * | *\	*)
-    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
-  *)
-    MISSING="\${SHELL} $am_aux_dir/missing" ;;
-  esac
-fi
-# Use eval to expand $SHELL
-if eval "$MISSING --is-lightweight"; then
-  am_missing_run="$MISSING "
-else
-  am_missing_run=
-  AC_MSG_WARN(['missing' script is too old or missing])
-fi
-])
-
-# Helper functions for option handling.                     -*- Autoconf -*-
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# _AM_MANGLE_OPTION(NAME)
-# -----------------------
-AC_DEFUN([_AM_MANGLE_OPTION],
-[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
-
-# _AM_SET_OPTION(NAME)
-# --------------------
-# Set option NAME.  Presently that only means defining a flag for this option.
-AC_DEFUN([_AM_SET_OPTION],
-[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
-
-# _AM_SET_OPTIONS(OPTIONS)
-# ------------------------
-# OPTIONS is a space-separated list of Automake options.
-AC_DEFUN([_AM_SET_OPTIONS],
-[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
-
-# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
-# -------------------------------------------
-# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
-AC_DEFUN([_AM_IF_OPTION],
-[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
-
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# _AM_PROG_CC_C_O
-# ---------------
-# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
-# to automatically call this.
-AC_DEFUN([_AM_PROG_CC_C_O],
-[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-AC_REQUIRE_AUX_FILE([compile])dnl
-AC_LANG_PUSH([C])dnl
-AC_CACHE_CHECK(
-  [whether $CC understands -c and -o together],
-  [am_cv_prog_cc_c_o],
-  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
-  # Make sure it works both with $CC and with simple cc.
-  # Following AC_PROG_CC_C_O, we do the test twice because some
-  # compilers refuse to overwrite an existing .o file with -o,
-  # though they will create one.
-  am_cv_prog_cc_c_o=yes
-  for am_i in 1 2; do
-    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
-         && test -f conftest2.$ac_objext; then
-      : OK
-    else
-      am_cv_prog_cc_c_o=no
-      break
-    fi
-  done
-  rm -f core conftest*
-  unset am_i])
-if test "$am_cv_prog_cc_c_o" != yes; then
-   # Losing compiler, so override with the script.
-   # FIXME: It is wrong to rewrite CC.
-   # But if we don't then we get into trouble of one sort or another.
-   # A longer-term fix would be to have automake use am__CC in this case,
-   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
-   CC="$am_aux_dir/compile $CC"
-fi
-AC_LANG_POP([C])])
-
-# For backward compatibility.
-AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_RUN_LOG(COMMAND)
-# -------------------
-# Run COMMAND, save the exit status in ac_status, and log it.
-# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
-AC_DEFUN([AM_RUN_LOG],
-[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
-   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
-   ac_status=$?
-   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
-   (exit $ac_status); }])
-
-# Check to make sure that the build environment is sane.    -*- Autoconf -*-
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_SANITY_CHECK
-# ---------------
-AC_DEFUN([AM_SANITY_CHECK],
-[AC_MSG_CHECKING([whether build environment is sane])
-# Reject unsafe characters in $srcdir or the absolute working directory
-# name.  Accept space and tab only in the latter.
-am_lf='
-'
-case `pwd` in
-  *[[\\\"\#\$\&\'\`$am_lf]]*)
-    AC_MSG_ERROR([unsafe absolute working directory name]);;
-esac
-case $srcdir in
-  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
-    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
-esac
-
-# Do 'set' in a subshell so we don't clobber the current shell's
-# arguments.  Must try -L first in case configure is actually a
-# symlink; some systems play weird games with the mod time of symlinks
-# (eg FreeBSD returns the mod time of the symlink's containing
-# directory).
-if (
-   am_has_slept=no
-   for am_try in 1 2; do
-     echo "timestamp, slept: $am_has_slept" > conftest.file
-     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
-     if test "$[*]" = "X"; then
-	# -L didn't work.
-	set X `ls -t "$srcdir/configure" conftest.file`
-     fi
-     if test "$[*]" != "X $srcdir/configure conftest.file" \
-	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
-
-	# If neither matched, then we have a broken ls.  This can happen
-	# if, for instance, CONFIG_SHELL is bash and it inherits a
-	# broken ls alias from the environment.  This has actually
-	# happened.  Such a system could not be considered "sane".
-	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
-  alias in your environment])
-     fi
-     if test "$[2]" = conftest.file || test $am_try -eq 2; then
-       break
-     fi
-     # Just in case.
-     sleep 1
-     am_has_slept=yes
-   done
-   test "$[2]" = conftest.file
-   )
-then
-   # Ok.
-   :
-else
-   AC_MSG_ERROR([newly created file is older than distributed files!
-Check your system clock])
-fi
-AC_MSG_RESULT([yes])
-# If we didn't sleep, we still need to ensure time stamps of config.status and
-# generated files are strictly newer.
-am_sleep_pid=
-if grep 'slept: no' conftest.file >/dev/null 2>&1; then
-  ( sleep 1 ) &
-  am_sleep_pid=$!
-fi
-AC_CONFIG_COMMANDS_PRE(
-  [AC_MSG_CHECKING([that generated files are newer than configure])
-   if test -n "$am_sleep_pid"; then
-     # Hide warnings about reused PIDs.
-     wait $am_sleep_pid 2>/dev/null
-   fi
-   AC_MSG_RESULT([done])])
-rm -f conftest.file
-])
-
-# Copyright (C) 2009-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_SILENT_RULES([DEFAULT])
-# --------------------------
-# Enable less verbose build rules; with the default set to DEFAULT
-# ("yes" being less verbose, "no" or empty being verbose).
-AC_DEFUN([AM_SILENT_RULES],
-[AC_ARG_ENABLE([silent-rules], [dnl
-AS_HELP_STRING(
-  [--enable-silent-rules],
-  [less verbose build output (undo: "make V=1")])
-AS_HELP_STRING(
-  [--disable-silent-rules],
-  [verbose build output (undo: "make V=0")])dnl
-])
-case $enable_silent_rules in @%:@ (((
-  yes) AM_DEFAULT_VERBOSITY=0;;
-   no) AM_DEFAULT_VERBOSITY=1;;
-    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
-esac
-dnl
-dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
-dnl do not support nested variable expansions.
-dnl See automake bug#9928 and bug#10237.
-am_make=${MAKE-make}
-AC_CACHE_CHECK([whether $am_make supports nested variables],
-   [am_cv_make_support_nested_variables],
-   [if AS_ECHO([['TRUE=$(BAR$(V))
-BAR0=false
-BAR1=true
-V=1
-am__doit:
-	@$(TRUE)
-.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
-  am_cv_make_support_nested_variables=yes
-else
-  am_cv_make_support_nested_variables=no
-fi])
-if test $am_cv_make_support_nested_variables = yes; then
-  dnl Using '$V' instead of '$(V)' breaks IRIX make.
-  AM_V='$(V)'
-  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
-else
-  AM_V=$AM_DEFAULT_VERBOSITY
-  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
-fi
-AC_SUBST([AM_V])dnl
-AM_SUBST_NOTMAKE([AM_V])dnl
-AC_SUBST([AM_DEFAULT_V])dnl
-AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
-AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
-AM_BACKSLASH='\'
-AC_SUBST([AM_BACKSLASH])dnl
-_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
-])
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_PROG_INSTALL_STRIP
-# ---------------------
-# One issue with vendor 'install' (even GNU) is that you can't
-# specify the program used to strip binaries.  This is especially
-# annoying in cross-compiling environments, where the build's strip
-# is unlikely to handle the host's binaries.
-# Fortunately install-sh will honor a STRIPPROG variable, so we
-# always use install-sh in "make install-strip", and initialize
-# STRIPPROG with the value of the STRIP variable (set by the user).
-AC_DEFUN([AM_PROG_INSTALL_STRIP],
-[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
-# Installed binaries are usually stripped using 'strip' when the user
-# run "make install-strip".  However 'strip' might not be the right
-# tool to use in cross-compilation environments, therefore Automake
-# will honor the 'STRIP' environment variable to overrule this program.
-dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
-if test "$cross_compiling" != no; then
-  AC_CHECK_TOOL([STRIP], [strip], :)
-fi
-INSTALL_STRIP_P[...]

[diff truncated at 100000 bytes]


^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2022-02-26  4:06 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-02-26  4:06 [newlib-cygwin] newlib: libc: move configure into top-level Michael Frysinger

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).