GNU gettext introduced this change[0] in version 0.19.8 to fix
gettext detection with musl libc, since it does not define these
internal symbols.
This allows gcc to build with musl gettext rather than falling back
to the bundled version.
[0] https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=commit;h=b67399b4
2021-05-23 Michael Forney
config/ChangeLog:
* gettext.m4 (AM_GNU_GETTEXT): Skip checks for the internal
symbols _nl_msg_cat_cntr, _nl_domain_bindings, and
_nl_expand_alias, if __GNU_GETTEXT_SUPPORTED_REVISION is defined.
Backport of gettext serial 68 patch.
intl/ChangeLog:
* configure: Regenerate.
---
config/gettext.m4 | 52 +++
1 file changed, 35 insertions(+), 17 deletions(-)
diff --git a/config/gettext.m4 b/config/gettext.m4
index 45fa6b4ab76..5b42bb16523 100644
--- a/config/gettext.m4
+++ b/config/gettext.m4
@@ -128,6 +128,13 @@ AC_DEFUN([AM_GNU_GETTEXT],
AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
[AC_TRY_LINK([#include
+#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
+extern int _nl_msg_cat_cntr;
+extern int *_nl_domain_bindings;
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr +
*_nl_domain_bindings)
+#else
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
+#endif
]ifelse([$2], [need-formatstring-macros],
[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
@@ -135,10 +142,9 @@ AC_DEFUN([AM_GNU_GETTEXT],
changequote(,)dnl
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
changequote([,])dnl
-], [])[extern int _nl_msg_cat_cntr;
-extern int *_nl_domain_bindings;],
+], []),
[bindtextdomain ("", "");
-return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext
("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
+return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext
("", "", 0)], [])[ + __GNU_GETTEXT_SYMBOL_EXPRESSION],
gt_cv_func_gnugettext_libc=yes,
gt_cv_func_gnugettext_libc=no)])
@@ -160,6 +166,17 @@ return (int) gettext ("")]ifelse([$2], [need-ngettext], [
+ (int) ngettext ("",
LIBS="$LIBS $LIBINTL"
dnl Now see whether libintl exists and does not depend on libiconv.
AC_TRY_LINK([#include
+#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
+extern int _nl_msg_cat_cntr;
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *_nl_expand_alias ();
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias
(0))
+#else
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
+#endif
]ifelse([$2], [need-formatstring-macros],
[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
@@ -167,20 +184,26 @@ return (int) gettext ("")]ifelse([$2], [need-ngettext], [
+ (int) ngettext ("",
changequote(,)dnl
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
changequote([,])dnl
-], [])[extern int _nl_msg_cat_cntr;
-extern
-#ifdef __cplusplus
-"C"
-#endif
-const char *_nl_expand_alias ();],
+], []),
[bindtextdomain ("", "");
-return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext
("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
+return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext
("", "", 0)], [])[ + __GNU_GETTEXT_SYMBOL_EXPRESSION],
gt_cv_func_gnugettext_libintl=yes,
gt_cv_func_gnugettext_libintl=no)
dnl Now see whether libintl exists and depends on libiconv.
if test "$gt_cv_func_gnugettext_libintl" != yes && test -n
"$LIBICONV"; then
LIBS="$LIBS $LIBICONV"
AC_TRY_LINK([#include
+#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
+extern int _nl_msg_cat_cntr;
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *_nl_expand_alias ();
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias
(0))
+#else
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
+#endif
]ifelse([$2], [need-formatstring-macros],
[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
@@ -188,14 +211,9 @@ return (int) gettext ("")]ifelse([$2], [need-ngettext], [
+ (int) ngettext ("",
changequote(,)dnl
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
changequote([,])dnl
-], [])[extern int _nl_msg_cat_cntr;
-extern
-#ifdef __cplusplus
-"C"
-#endif
-const char *_nl_expand_alias ();],
+], []),
[bindtextdomain ("", "");
-return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext
("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
+return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext
("", "", 0)], [])[ + __GNU_GETTEXT_SYMBOL_EXPRESSION],
[LIBINTL="$LIBINTL $LIBICONV"
