From 009e3b99cf85d95796751de9f6e11ccaf112f126 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Fri, 18 Jan 2002 23:47:13 +0000 Subject: [PATCH] *** empty log message *** --- m4/strnlen.m4 | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 m4/strnlen.m4 diff --git a/m4/strnlen.m4 b/m4/strnlen.m4 new file mode 100644 index 0000000..a5bd2ef --- /dev/null +++ b/m4/strnlen.m4 @@ -0,0 +1,31 @@ +#serial 1 + +# This is already in cvs autoconf -- what will be 2.52g. +# Define it here for those who aren't on the bleeding edge. +# FIXME: remove this file once the next autoconf release comes out. + +undefine([AC_FUNC_STRNLEN]) + +# AC_FUNC_STRNLEN +# -------------- +AC_DEFUN([AC_FUNC_STRNLEN], +[AC_CACHE_CHECK([for working strnlen], ac_cv_func_strnlen_working, +[AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[ +#define S "foobar" +#define S_LEN (sizeof S - 1) + + /* At least one implementation is buggy: that of AIX 4.3. */ + int i; + for (i = 0; i < S_LEN + 1; ++i) + { + int result = i <= S_LEN ? i : S_LEN; + if (strnlen (S, i) != result) + exit (1); + } + exit (0); +]])], + [ac_cv_func_strnlen_working=yes], + [ac_cv_func_strnlen_working=no], + [ac_cv_func_strnlen_working=no])]) +test $ac_cv_func_strnlen_working = no && AC_LIBOBJ([strnlen]) +])# AC_FUNC_STRNLEN -- 2.7.4