[newlib-cygwin] newlib: clean up autoheader templates

[newlib-cygwin] newlib: clean up autoheader templates

[Michael Frysinger]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=810c5e597974d09fe2d27f3bddf90dd52d20bb1c

commit 810c5e597974d09fe2d27f3bddf90dd52d20bb1c
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Wed Jan 12 23:05:16 2022 -0500

    newlib: clean up autoheader templates
    
    Sync these back from newlib.hin to configure.ac, and touchup some of
    the forms to be consistent (like being full sentences).  Also use the
    AC_DEFINE-vs-AC_DEFINE_UNQUOTED macros correctly.  This will make it
    easier to re-enable autoheader for managing newlib.hin.

Diff:
---
 newlib/configure    | 147 ++++++++++++++++++++--------------------------------
 newlib/configure.ac |  76 +++++++++++++--------------
 newlib/newlib.hin   |  65 +++++++++++------------
 3 files changed, 127 insertions(+), 161 deletions(-)

diff --git a/newlib/configure b/newlib/configure
index 8190f9f2e..624ec89af 100755
--- a/newlib/configure
+++ b/newlib/configure
@@ -12503,6 +12503,7 @@ fi
 
 
 if test "${newlib_elix_level}" -gt "0"; then
+
 cat >>confdefs.h <<_ACEOF
 #define _ELIX_LEVEL ${newlib_elix_level}
 _ACEOF
@@ -12510,83 +12511,65 @@ _ACEOF
 fi
 
 if test "${newlib_reent_check_verify}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _REENT_CHECK_VERIFY 1
-_ACEOF
+
+$as_echo "#define _REENT_CHECK_VERIFY 1" >>confdefs.h
 
 fi
 
 if test "${newlib_io_c99_formats}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_IO_C99_FORMATS 1
-_ACEOF
+
+$as_echo "#define _WANT_IO_C99_FORMATS 1" >>confdefs.h
 
 fi
 
 if test "${newlib_register_fini}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_REGISTER_FINI 1
-_ACEOF
+
+$as_echo "#define _WANT_REGISTER_FINI 1" >>confdefs.h
 
 fi
 
 if test "${newlib_io_long_long}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_IO_LONG_LONG 1
-_ACEOF
+
+$as_echo "#define _WANT_IO_LONG_LONG 1" >>confdefs.h
 
 fi
 
 if test "${newlib_io_long_double}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_IO_LONG_DOUBLE 1
-_ACEOF
+
+$as_echo "#define _WANT_IO_LONG_DOUBLE 1" >>confdefs.h
 
 fi
 
 if test "${newlib_io_pos_args}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_IO_POS_ARGS 1
-_ACEOF
+
+$as_echo "#define _WANT_IO_POS_ARGS 1" >>confdefs.h
 
 fi
 
 if test "${newlib_reent_small}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_REENT_SMALL 1
-_ACEOF
+
+$as_echo "#define _WANT_REENT_SMALL 1" >>confdefs.h
 
 fi
 
 if test "${newlib_global_stdio_streams}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_REENT_GLOBAL_STDIO_STREAMS 1
-_ACEOF
+
+$as_echo "#define _WANT_REENT_GLOBAL_STDIO_STREAMS 1" >>confdefs.h
 
 fi
 
+_mb_len_max=1
 if test "${newlib_mb}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _MB_CAPABLE 1
-_ACEOF
 
-cat >>confdefs.h <<_ACEOF
-#define _MB_LEN_MAX 8
-_ACEOF
-
-else
-cat >>confdefs.h <<_ACEOF
-#define _MB_LEN_MAX 1
-_ACEOF
+$as_echo "#define _MB_CAPABLE 1" >>confdefs.h
 
+  _mb_len_max=8
 fi
 
-if test "${newlib_iconv_external_ccs}" = "yes"; then
 cat >>confdefs.h <<_ACEOF
-#define _ICONV_ENABLE_EXTERNAL_CCS 1
+#define _MB_LEN_MAX $_mb_len_max
 _ACEOF
 
-fi
 
 
 $as_echo "#define _NEWLIB_VERSION \"4.2.0\"" >>confdefs.h
@@ -12608,9 +12591,8 @@ else
 fi
 
 if test "${newlib_iconv}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _ICONV_ENABLED 1
-_ACEOF
+
+$as_echo "#define _ICONV_ENABLED 1" >>confdefs.h
 
 fi
 
@@ -12618,93 +12600,80 @@ if test "x${newlib_iconv_external_ccs}" = "xyes"; then
   if test "x${newlib_iconv}" = "x"; then
       as_fn_error use --enable-newlib-iconv to enable it. "--enable-newlib-iconv-external-ccs option can't be used if iconv library is disabled" "$LINENO" 5
   fi
-  cat >>confdefs.h <<_ACEOF
-#define _ICONV_ENABLE_EXTERNAL_CCS 1
-_ACEOF
+
+$as_echo "#define _ICONV_ENABLE_EXTERNAL_CCS 1" >>confdefs.h
 
 fi
 
 if test "${newlib_atexit_dynamic_alloc}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _ATEXIT_DYNAMIC_ALLOC 1
-_ACEOF
+
+$as_echo "#define _ATEXIT_DYNAMIC_ALLOC 1" >>confdefs.h
 
 fi
 
 if test "${newlib_global_atexit}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _REENT_GLOBAL_ATEXIT 1
-_ACEOF
+
+$as_echo "#define _REENT_GLOBAL_ATEXIT 1" >>confdefs.h
 
 fi
 
 if test "${newlib_fvwrite_in_streamio}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _FVWRITE_IN_STREAMIO 1
-_ACEOF
+
+$as_echo "#define _FVWRITE_IN_STREAMIO 1" >>confdefs.h
 
 fi
 
 if test "${newlib_fseek_optimization}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _FSEEK_OPTIMIZATION 1
-_ACEOF
+
+$as_echo "#define _FSEEK_OPTIMIZATION 1" >>confdefs.h
 
 fi
 
 if test "${newlib_wide_orient}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WIDE_ORIENT 1
-_ACEOF
+
+$as_echo "#define _WIDE_ORIENT 1" >>confdefs.h
 
 fi
 
 if test "${newlib_nano_malloc}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _NANO_MALLOC 1
-_ACEOF
+
+$as_echo "#define _NANO_MALLOC 1" >>confdefs.h
 
 fi
 
 if test "${newlib_unbuf_stream_opt}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _UNBUF_STREAM_OPT 1
-_ACEOF
+
+$as_echo "#define _UNBUF_STREAM_OPT 1" >>confdefs.h
 
 fi
 
 if test "${lite_exit}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _LITE_EXIT 1
-_ACEOF
+
+$as_echo "#define _LITE_EXIT 1" >>confdefs.h
 
 fi
 
 if test "${newlib_nano_formatted_io}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _NANO_FORMATTED_IO 1
-_ACEOF
+
+$as_echo "#define _NANO_FORMATTED_IO 1" >>confdefs.h
 
 fi
 
 if test "${newlib_retargetable_locking}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _RETARGETABLE_LOCKING 1
-_ACEOF
+
+$as_echo "#define _RETARGETABLE_LOCKING 1" >>confdefs.h
 
 fi
 
 if test "${newlib_long_time_t}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_USE_LONG_TIME_T 1
-_ACEOF
+
+$as_echo "#define _WANT_USE_LONG_TIME_T 1" >>confdefs.h
 
 fi
 
 if test "${newlib_use_gdtoa}" = "yes"; then
-cat >>confdefs.h <<_ACEOF
-#define _WANT_USE_GDTOA 1
-_ACEOF
+
+$as_echo "#define _WANT_USE_GDTOA 1" >>confdefs.h
 
 fi
 
@@ -12816,9 +12785,8 @@ fi
 $as_echo "$libc_cv_initfinit_array" >&6; }
 
 if test $libc_cv_initfinit_array = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define _HAVE_INITFINI_ARRAY 1
-_ACEOF
+
+$as_echo "#define _HAVE_INITFINI_ARRAY 1" >>confdefs.h
 
 fi
 
@@ -12850,7 +12818,8 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_loop_to_function" >&5
 $as_echo "$libc_cv_cc_loop_to_function" >&6; }
 if test $libc_cv_cc_loop_to_function = yes; then
-  $as_echo "#define _HAVE_CC_INHIBIT_LOOP_TO_LIBCALL 1" >>confdefs.h
+
+$as_echo "#define _HAVE_CC_INHIBIT_LOOP_TO_LIBCALL 1" >>confdefs.h
 
 fi
 
@@ -12890,9 +12859,8 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acnewlib_cv_type_long_double" >&5
 $as_echo "$acnewlib_cv_type_long_double" >&6; }
 if test $acnewlib_cv_type_long_double = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define _HAVE_LONG_DOUBLE 1
-_ACEOF
+
+$as_echo "#define _HAVE_LONG_DOUBLE 1" >>confdefs.h
 
 fi
  if test x"$acnewlib_cv_type_long_double" = x"yes"; then
@@ -12935,9 +12903,8 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $newlib_cv_ldbl_eq_dbl" >&5
 $as_echo "$newlib_cv_ldbl_eq_dbl" >&6; }
 if test $newlib_cv_ldbl_eq_dbl = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define _LDBL_EQ_DBL 1
-_ACEOF
+
+$as_echo "#define _LDBL_EQ_DBL 1" >>confdefs.h
 
 fi
 
diff --git a/newlib/configure.ac b/newlib/configure.ac
index 8dca042aa..35d94666a 100644
--- a/newlib/configure.ac
+++ b/newlib/configure.ac
@@ -433,56 +433,54 @@ fi
 AC_SUBST(EXEEXT_FOR_BUILD)
 
 if test "${newlib_elix_level}" -gt "0"; then
-AC_DEFINE_UNQUOTED(_ELIX_LEVEL,${newlib_elix_level})
+  AC_DEFINE_UNQUOTED(_ELIX_LEVEL, ${newlib_elix_level}, [EL/IX level])
 fi
 
 if test "${newlib_reent_check_verify}" = "yes"; then
-AC_DEFINE_UNQUOTED(_REENT_CHECK_VERIFY)
+  AC_DEFINE(_REENT_CHECK_VERIFY, 1, [Verify _REENT_CHECK macros allocate memory successfully.])
 fi
 
 if test "${newlib_io_c99_formats}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_IO_C99_FORMATS)
+  AC_DEFINE(_WANT_IO_C99_FORMATS, 1, [Enable C99 formats support (e.g. %a, %zu, ...) in IO functions like printf/scanf.])
 fi
 
 if test "${newlib_register_fini}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_REGISTER_FINI)
+  AC_DEFINE(_WANT_REGISTER_FINI, 1, [Register application finalization function using atexit.])
 fi
 
 if test "${newlib_io_long_long}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_IO_LONG_LONG)
+  AC_DEFINE(_WANT_IO_LONG_LONG, 1, [Define to enable long long type support in IO functions like printf/scanf.])
 fi
 
 if test "${newlib_io_long_double}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_IO_LONG_DOUBLE)
+  AC_DEFINE(_WANT_IO_LONG_DOUBLE, 1, [Define to enable long double type support in IO functions like printf/scanf.])
 fi
 
 if test "${newlib_io_pos_args}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_IO_POS_ARGS)
+  AC_DEFINE(_WANT_IO_POS_ARGS, 1, [Positional argument support in printf functions enabled.])
 fi
 
 if test "${newlib_reent_small}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_REENT_SMALL)
+  AC_DEFINE(_WANT_REENT_SMALL, 1, [Optional reentrant struct support.  Used mostly on platforms with very restricted storage.])
 fi
 
 if test "${newlib_global_stdio_streams}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_REENT_GLOBAL_STDIO_STREAMS)
+  AC_DEFINE(_WANT_REENT_GLOBAL_STDIO_STREAMS, 1,
+	    [Define to move the stdio stream FILE objects out of struct _reent and make them global.
+	     The stdio stream pointers of struct _reent are initialized to point to the global stdio FILE stream objects.])
 fi
 
+_mb_len_max=1
 if test "${newlib_mb}" = "yes"; then
-AC_DEFINE_UNQUOTED(_MB_CAPABLE)
-AC_DEFINE_UNQUOTED(_MB_LEN_MAX,8)
-else
-AC_DEFINE_UNQUOTED(_MB_LEN_MAX,1)
-fi
-
-if test "${newlib_iconv_external_ccs}" = "yes"; then
-AC_DEFINE_UNQUOTED(_ICONV_ENABLE_EXTERNAL_CCS)
+  AC_DEFINE(_MB_CAPABLE, 1, [Multibyte supported.])
+  _mb_len_max=8
 fi
+AC_DEFINE_UNQUOTED(_MB_LEN_MAX, $_mb_len_max, [Multibyte max length.])
 
-AC_DEFINE(_NEWLIB_VERSION,"NEWLIB_VERSION","The newlib version in string format.")
-AC_DEFINE(__NEWLIB__,NEWLIB_MAJOR_VERSION,"The newlib major version number.")
-AC_DEFINE(__NEWLIB_MINOR__,NEWLIB_MINOR_VERSION,"The newlib minor version number.")
-AC_DEFINE(__NEWLIB_PATCHLEVEL__,NEWLIB_PATCHLEVEL_VERSION,"The newlib patch level.")
+AC_DEFINE(_NEWLIB_VERSION, "NEWLIB_VERSION", [The newlib version in string format.])
+AC_DEFINE(__NEWLIB__, NEWLIB_MAJOR_VERSION, [The newlib major version number.])
+AC_DEFINE(__NEWLIB_MINOR__, NEWLIB_MINOR_VERSION, [The newlib minor version number.])
+AC_DEFINE(__NEWLIB_PATCHLEVEL__, NEWLIB_PATCHLEVEL_VERSION, [The newlib patch level.])
 
 if test "${multilib}" = "yes"; then
   multilib_arg="--enable-multilib"
@@ -491,62 +489,62 @@ else
 fi
 
 if test "${newlib_iconv}" = "yes"; then
-AC_DEFINE_UNQUOTED(_ICONV_ENABLED,1)
+  AC_DEFINE(_ICONV_ENABLED, 1, [ICONV enabled.])
 fi
 
 if test "x${newlib_iconv_external_ccs}" = "xyes"; then
   if test "x${newlib_iconv}" = "x"; then
       AC_MSG_ERROR(--enable-newlib-iconv-external-ccs option can't be used if iconv library is disabled, use --enable-newlib-iconv to enable it.)
   fi
-  AC_DEFINE_UNQUOTED(_ICONV_ENABLE_EXTERNAL_CCS,1)
+  AC_DEFINE(_ICONV_ENABLE_EXTERNAL_CCS, 1, [Enable ICONV external CCS files loading capabilities.])
 fi
 
 if test "${newlib_atexit_dynamic_alloc}" = "yes"; then
-AC_DEFINE_UNQUOTED(_ATEXIT_DYNAMIC_ALLOC)
+  AC_DEFINE(_ATEXIT_DYNAMIC_ALLOC, 1, [If atexit() may dynamically allocate space for cleanup functions.])
 fi
 
 if test "${newlib_global_atexit}" = "yes"; then
-AC_DEFINE_UNQUOTED(_REENT_GLOBAL_ATEXIT)
+  AC_DEFINE(_REENT_GLOBAL_ATEXIT, 1, [Define if declare atexit data as global.])
 fi
 
 if test "${newlib_fvwrite_in_streamio}" = "yes"; then
-AC_DEFINE_UNQUOTED(_FVWRITE_IN_STREAMIO)
+  AC_DEFINE(_FVWRITE_IN_STREAMIO, 1, [Define if ivo supported in streamio.])
 fi
 
 if test "${newlib_fseek_optimization}" = "yes"; then
-AC_DEFINE_UNQUOTED(_FSEEK_OPTIMIZATION)
+  AC_DEFINE(_FSEEK_OPTIMIZATION, 1, [Define if fseek functions support seek optimization.])
 fi
 
 if test "${newlib_wide_orient}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WIDE_ORIENT)
+  AC_DEFINE(_WIDE_ORIENT, 1, [Define if wide char orientation is supported.])
 fi
 
 if test "${newlib_nano_malloc}" = "yes"; then
-AC_DEFINE_UNQUOTED(_NANO_MALLOC)
+  AC_DEFINE(_NANO_MALLOC, 1, [nano version of malloc is used.])
 fi
 
 if test "${newlib_unbuf_stream_opt}" = "yes"; then
-AC_DEFINE_UNQUOTED(_UNBUF_STREAM_OPT)
+  AC_DEFINE(_UNBUF_STREAM_OPT, 1, [Define if unbuffered stream file optimization is supported.])
 fi
 
 if test "${lite_exit}" = "yes"; then
-AC_DEFINE_UNQUOTED(_LITE_EXIT)
+  AC_DEFINE(_LITE_EXIT, 1, [Define if lite version of exit supported.])
 fi
 
 if test "${newlib_nano_formatted_io}" = "yes"; then
-AC_DEFINE_UNQUOTED(_NANO_FORMATTED_IO)
+  AC_DEFINE(_NANO_FORMATTED_IO, 1, [Define if small footprint nano-formatted-IO implementation used.])
 fi
 
 if test "${newlib_retargetable_locking}" = "yes"; then
-AC_DEFINE_UNQUOTED(_RETARGETABLE_LOCKING)
+  AC_DEFINE(_RETARGETABLE_LOCKING, 1, [Define if using retargetable functions for default lock routines.])
 fi
 
 if test "${newlib_long_time_t}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_USE_LONG_TIME_T)
+  AC_DEFINE(_WANT_USE_LONG_TIME_T, 1, [Define to use type long for time_t.])
 fi
 
 if test "${newlib_use_gdtoa}" = "yes"; then
-AC_DEFINE_UNQUOTED(_WANT_USE_GDTOA)
+  AC_DEFINE(_WANT_USE_GDTOA, 1, [Define if using gdtoa rather than legacy ldtoa.])
 fi
 
 dnl
@@ -648,7 +646,7 @@ fi
 rm -f conftest*])
 AC_SUBST(libc_cv_initfinit_array)
 if test $libc_cv_initfinit_array = yes; then
-  AC_DEFINE_UNQUOTED(_HAVE_INITFINI_ARRAY)
+  AC_DEFINE(_HAVE_INITFINI_ARRAY, 1, [Define if the linker supports .preinit_array/.init_array/.fini_array sections.])
 fi
 
 AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \
@@ -666,7 +664,7 @@ then
 fi
 rm -f conftest*])
 if test $libc_cv_cc_loop_to_function = yes; then
-  AC_DEFINE(_HAVE_CC_INHIBIT_LOOP_TO_LIBCALL)
+  AC_DEFINE(_HAVE_CC_INHIBIT_LOOP_TO_LIBCALL, 1, [Define if compiler supports -fno-tree-loop-distribute-patterns.])
 fi
 AC_SUBST(libc_cv_cc_loop_to_function)
 
@@ -700,7 +698,7 @@ else
 fi
 rm -f conftest*])
 if test $acnewlib_cv_type_long_double = yes; then
-  AC_DEFINE_UNQUOTED(_HAVE_LONG_DOUBLE)
+  AC_DEFINE(_HAVE_LONG_DOUBLE, 1, [Define if the platform supports long double type.])
 fi
 AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$acnewlib_cv_type_long_double" = x"yes")
 
@@ -724,7 +722,7 @@ else
 fi
 rm -f conftest*])
 if test $newlib_cv_ldbl_eq_dbl = yes; then
-  AC_DEFINE_UNQUOTED(_LDBL_EQ_DBL)
+  AC_DEFINE(_LDBL_EQ_DBL, 1, [Define if the platform long double type is equal to double.])
 fi
 
 AC_SUBST(CFLAGS)
diff --git a/newlib/newlib.hin b/newlib/newlib.hin
index db3446492..f1198577c 100644
--- a/newlib/newlib.hin
+++ b/newlib/newlib.hin
@@ -12,91 +12,92 @@
 /* Newlib version */
 #include <_newlib_version.h>
 
-/* C99 formats support (such as %a, %zu, ...) in IO functions like
- * printf/scanf enabled */
+/* Enable C99 formats support (e.g. %a, %zu, ...) in IO functions like
+   printf/scanf. */
 #undef _WANT_IO_C99_FORMATS
 
-/* long long type support in IO functions like printf/scanf enabled */
+/* Define to enable long long type support in IO functions like printf/scanf.
+   */
 #undef _WANT_IO_LONG_LONG
 
 /* Register application finalization function using atexit. */
 #undef _WANT_REGISTER_FINI
 
-/* long double type support in IO functions like printf/scanf enabled */
+/* Define to enable long double type support in IO functions like
+   printf/scanf. */
 #undef _WANT_IO_LONG_DOUBLE
 
-/* Positional argument support in printf functions enabled.  */
+/* Positional argument support in printf functions enabled. */
 #undef _WANT_IO_POS_ARGS
 
-/* Optional reentrant struct support.  Used mostly on platforms with
-   very restricted storage.  */
+/* Optional reentrant struct support. Used mostly on platforms with very
+   restricted storage. */
 #undef _WANT_REENT_SMALL
 
 /* Verify _REENT_CHECK macros allocate memory successfully. */
 #undef _REENT_CHECK_VERIFY
 
-/* Multibyte supported */
+/* Multibyte supported. */
 #undef _MB_CAPABLE
 
-/* MB_LEN_MAX */
+/* Multibyte max length. */
 #undef _MB_LEN_MAX
 
-/* ICONV enabled */
+/* ICONV enabled. */
 #undef _ICONV_ENABLED
 
-/* Enable ICONV external CCS files loading capabilities */
+/* Enable ICONV external CCS files loading capabilities. */
 #undef _ICONV_ENABLE_EXTERNAL_CCS
 
 /* Define if the linker supports .preinit_array/.init_array/.fini_array
- * sections.  */
+   sections. */
 #undef _HAVE_INITFINI_ARRAY
 
-/* True if atexit() may dynamically allocate space for cleanup
-   functions.  */
-#undef  _ATEXIT_DYNAMIC_ALLOC
+/* If atexit() may dynamically allocate space for cleanup functions. */
+#undef _ATEXIT_DYNAMIC_ALLOC
 
-/* Define if the platform supports long double type.  */
-#undef  _HAVE_LONG_DOUBLE
+/* Define if the platform supports long double type. */
+#undef _HAVE_LONG_DOUBLE
 
 /* Define if compiler supports -fno-tree-loop-distribute-patterns. */
-#undef  _HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
+#undef _HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
 
-/* Define if the platform long double type is equal to double.  */
-#undef  _LDBL_EQ_DBL
+/* Define if the platform long double type is equal to double. */
+#undef _LDBL_EQ_DBL
  
-/* Define if ivo supported in streamio.  */
+/* Define if ivo supported in streamio. */
 #undef _FVWRITE_IN_STREAMIO
 
-/* Define if fseek functions support seek optimization.  */
+/* Define if fseek functions support seek optimization. */
 #undef _FSEEK_OPTIMIZATION
 
-/* Define if wide char orientation is supported.  */
-#undef  _WIDE_ORIENT
+/* Define if wide char orientation is supported. */
+#undef _WIDE_ORIENT
 
-/* Define if unbuffered stream file optimization is supported.  */
+/* Define if unbuffered stream file optimization is supported. */
 #undef _UNBUF_STREAM_OPT
 
-/* Define if lite version of exit supported.  */
+/* Define if lite version of exit supported. */
 #undef _LITE_EXIT
 
-/* Define if declare atexit data as global.  */
+/* Define if declare atexit data as global. */
 #undef _REENT_GLOBAL_ATEXIT
 
 /* Define to move the stdio stream FILE objects out of struct _reent and make
-   them global.  The stdio stream pointers of struct _reent are initialized to
+   them global. The stdio stream pointers of struct _reent are initialized to
    point to the global stdio FILE stream objects. */
 #undef _WANT_REENT_GLOBAL_STDIO_STREAMS
 
-/* Define if small footprint nano-formatted-IO implementation used.  */
+/* Define if small footprint nano-formatted-IO implementation used. */
 #undef _NANO_FORMATTED_IO
 
-/* Define if using retargetable functions for default lock routines.  */
+/* Define if using retargetable functions for default lock routines. */
 #undef _RETARGETABLE_LOCKING
 
-/* Define to use type long for time_t.  */
+/* Define to use type long for time_t. */
 #undef _WANT_USE_LONG_TIME_T
 
-/* Define if using gdtoa rather than legacy ldtoa.  */
+/* Define if using gdtoa rather than legacy ldtoa. */
 #undef _WANT_USE_GDTOA
 
 /*