diff options
Diffstat (limited to 'gnulib-m4/sys_cdefs_h.m4')
| -rw-r--r-- | gnulib-m4/sys_cdefs_h.m4 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gnulib-m4/sys_cdefs_h.m4 b/gnulib-m4/sys_cdefs_h.m4 new file mode 100644 index 00000000..22fa6c38 --- /dev/null +++ b/gnulib-m4/sys_cdefs_h.m4 @@ -0,0 +1,25 @@ +# sys_cdefs_h.m4 - Is <sys/cdefs.h> compatible enough with glibc? +# serial 2 +dnl Copyright 2024 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN_ONCE([gl_CHECK_HEADER_SYS_CDEFS_H], + [AC_CACHE_CHECK([for glibc-compatible sys/cdefs.h], + [gl_cv_header_sys_cdefs_h], + [AC_COMPILE_IFELSE( + [AC_LANG_DEFINES_PROVIDED + [#include <sys/cdefs.h> + enum { foo = __GNUC_PREREQ (14, 1) } bar; + ]], + [gl_cv_header_sys_cdefs_h=yes], + [gl_cv_header_sys_cdefs_h=no])]) + if test "$gl_cv_header_sys_cdefs_h" = yes; then + HAVE_SYS_CDEFS_H=1 + else + HAVE_SYS_CDEFS_H=0 + fi + AC_SUBST([HAVE_SYS_CDEFS_H])]) |