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Diffstat (limited to 'm4/memrchr.m4')
| -rw-r--r-- | m4/memrchr.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/memrchr.m4 b/m4/memrchr.m4 new file mode 100644 index 000000000..c489ec3d3 --- /dev/null +++ b/m4/memrchr.m4 @@ -0,0 +1,23 @@ +# memrchr.m4 serial 1 +dnl Copyright (C) 2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +AC_DEFUN([gl_FUNC_MEMRCHR], +[ + dnl Persuade glibc <string.h> to declare memrchr(). + AC_REQUIRE([AC_GNU_SOURCE]) + + AC_REPLACE_FUNCS(memrchr) + if test $ac_cv_func_memrchr = no; then + gl_PREREQ_MEMRCHR + fi +]) + +# Prerequisites of lib/memrchr.c. +AC_DEFUN([gl_PREREQ_MEMRCHR], [ + AC_CHECK_HEADERS_ONCE(limits.h) +]) |