| # ffsl.m4 serial 2 | |
| dnl Copyright (C) 2011-2021 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_FFSL], | |
| [ | |
| AC_REQUIRE([gl_STRING_H_DEFAULTS]) | |
| dnl Persuade glibc <string.h> to declare ffsl(). | |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) | |
| AC_CHECK_FUNCS_ONCE([ffsl]) | |
| if test $ac_cv_func_ffsl = no; then | |
| HAVE_FFSL=0 | |
| fi | |
| ]) |