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Diffstat (limited to 'm4/strnlen.m4')
| -rw-r--r-- | m4/strnlen.m4 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/m4/strnlen.m4 b/m4/strnlen.m4 new file mode 100644 index 0000000..0934274 --- /dev/null +++ b/m4/strnlen.m4 @@ -0,0 +1,30 @@ +# strnlen.m4 serial 14 +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_STRNLEN], +[ + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + + dnl Persuade glibc <string.h> to declare strnlen(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([strnlen]) + if test $ac_cv_have_decl_strnlen = no; then + HAVE_DECL_STRNLEN=0 + else + m4_pushdef([AC_LIBOBJ], [:]) + dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]). + AC_FUNC_STRNLEN + m4_popdef([AC_LIBOBJ]) + if test $ac_cv_func_strnlen_working = no; then + REPLACE_STRNLEN=1 + fi + fi +]) + +# Prerequisites of lib/strnlen.c. +AC_DEFUN([gl_PREREQ_STRNLEN], [:]) |