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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 0000000..ec5e208 --- /dev/null +++ b/m4/memrchr.m4 @@ -0,0 +1,23 @@ +# memrchr.m4 serial 11 +dnl Copyright (C) 2002-2003, 2005-2007, 2009-2022 Free Software Foundation, +dnl 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. + +AC_DEFUN([gl_FUNC_MEMRCHR], +[ + dnl Persuade glibc <string.h> to declare memrchr(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([memrchr]) + if test $ac_cv_have_decl_memrchr = no; then + HAVE_DECL_MEMRCHR=0 + fi + + AC_CHECK_FUNCS([memrchr]) +]) + +# Prerequisites of lib/memrchr.c. +AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) |