[newlib-cygwin] newlib: move version defines out of the config headers

[newlib-cygwin] newlib: move version defines out of the config headers

[Michael Frysinger]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=21fb1b461c29b61faf199ec2362ff9a53d6f01e6

commit 21fb1b461c29b61faf199ec2362ff9a53d6f01e6
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Mon Jan 17 21:17:54 2022 -0500

    newlib: move version defines out of the config headers
    
    This will make it easier to move newlib.h to use autoheader directly.
    We only want the newlib version defines in our hand curated version
    file, _newlib_version.h, not in the template header, newlib.h, so
    using AC_DEFINE doesn't make much sense.

Diff:
---
 newlib/Makefile.in         |  4 ++++
 newlib/_newlib_version.hin | 16 +++++++++++-----
 newlib/configure           | 16 ++++++----------
 newlib/configure.ac        | 10 ++++++----
 4 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/newlib/Makefile.in b/newlib/Makefile.in
index 1af918059..267db9019 100644
--- a/newlib/Makefile.in
+++ b/newlib/Makefile.in
@@ -315,6 +315,10 @@ 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@
 NM = @NM@
 NMEDIT = @NMEDIT@
 NO_INCLUDE_LIST = @NO_INCLUDE_LIST@
diff --git a/newlib/_newlib_version.hin b/newlib/_newlib_version.hin
index 03d4e3d47..077b81ecf 100644
--- a/newlib/_newlib_version.hin
+++ b/newlib/_newlib_version.hin
@@ -2,10 +2,16 @@
 #ifndef _NEWLIB_VERSION_H__
 #define _NEWLIB_VERSION_H__ 1
 
-#undef _NEWLIB_VERSION
-#undef __NEWLIB__
-#undef __NEWLIB_MINOR__
-#undef __NEWLIB_PATCHLEVEL__
+/* The newlib version in string format. */
+#define _NEWLIB_VERSION "@NEWLIB_VERSION@"
 
-#endif /* !_NEWLIB_VERSION_H__ */
+/* The newlib major version number. */
+#define __NEWLIB__ @NEWLIB_MAJOR_VERSION@
+
+/* The newlib minor version number. */
+#define __NEWLIB_MINOR__ @NEWLIB_MINOR_VERSION@
 
+/* The newlib patch level. */
+#define __NEWLIB_PATCHLEVEL__ @NEWLIB_PATCHLEVEL_VERSION@
+
+#endif /* !_NEWLIB_VERSION_H__ */
diff --git a/newlib/configure b/newlib/configure
index 624ec89af..2be0a6c33 100755
--- a/newlib/configure
+++ b/newlib/configure
@@ -638,6 +638,10 @@ HAVE_LONG_DOUBLE_FALSE
 HAVE_LONG_DOUBLE_TRUE
 libc_cv_cc_loop_to_function
 libc_cv_initfinit_array
+NEWLIB_PATCHLEVEL_VERSION
+NEWLIB_MINOR_VERSION
+NEWLIB_MAJOR_VERSION
+NEWLIB_VERSION
 EXEEXT_FOR_BUILD
 CC_FOR_BUILD
 STDIO64_OBJECTLIST
@@ -11970,7 +11974,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11973 "configure"
+#line 11977 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12076,7 +12080,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12079 "configure"
+#line 12083 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12572,16 +12576,8 @@ _ACEOF
 
 
 
-$as_echo "#define _NEWLIB_VERSION \"4.2.0\"" >>confdefs.h
 
 
-$as_echo "#define __NEWLIB__ 4" >>confdefs.h
-
-
-$as_echo "#define __NEWLIB_MINOR__ 2" >>confdefs.h
-
-
-$as_echo "#define __NEWLIB_PATCHLEVEL__ 0" >>confdefs.h
 
 
 if test "${multilib}" = "yes"; then
diff --git a/newlib/configure.ac b/newlib/configure.ac
index 35d94666a..e1fb2ad0e 100644
--- a/newlib/configure.ac
+++ b/newlib/configure.ac
@@ -477,10 +477,12 @@ if test "${newlib_mb}" = "yes"; then
 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.])
+dnl These are AC_SUBST instead of AC_DEFINE as they're hand maintained in a
+dnl dedicated _newlib_version.h, and we don't want them in newlib.h.
+AC_SUBST([NEWLIB_VERSION])
+AC_SUBST([NEWLIB_MAJOR_VERSION])
+AC_SUBST([NEWLIB_MINOR_VERSION])
+AC_SUBST([NEWLIB_PATCHLEVEL_VERSION])
 
 if test "${multilib}" = "yes"; then
   multilib_arg="--enable-multilib"