diff options
Diffstat (limited to 'm4/rawmemchr.m4')
| -rw-r--r-- | m4/rawmemchr.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/m4/rawmemchr.m4 b/m4/rawmemchr.m4 new file mode 100644 index 000000000..f92846543 --- /dev/null +++ b/m4/rawmemchr.m4 @@ -0,0 +1,20 @@ +# rawmemchr.m4 serial 2 +dnl Copyright (C) 2003, 2007-2021 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. + +AC_DEFUN([gl_FUNC_RAWMEMCHR], +[ + dnl Persuade glibc <string.h> to declare rawmemchr(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([rawmemchr]) + if test $ac_cv_func_rawmemchr = no; then + HAVE_RAWMEMCHR=0 + fi +]) + +# Prerequisites of lib/strchrnul.c. +AC_DEFUN([gl_PREREQ_RAWMEMCHR], [:]) |