-# fopen.m4 serial 1
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# fopen.m4 serial 8
+dnl Copyright (C) 2007-2011 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_REQUIRE([AC_CANONICAL_HOST])
case "$host_os" in
mingw* | pw*)
+ dnl Replace fopen, for handling of "/dev/null".
+ REPLACE_FOPEN=1
+ dnl fopen on mingw also has the trailing slash bug.
+ gl_cv_func_fopen_slash="guessing no"
+ ;;
+ *)
+ dnl fopen("foo/", "w") should not create a file when the file name has a
+ dnl trailing slash.
+ AC_CACHE_CHECK([whether fopen recognizes a trailing slash],
+ [gl_cv_func_fopen_slash],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stddef.h>
+#include <stdio.h>
+int main ()
+{
+ return fopen ("conftest.sl/", "w") != NULL;
+}]])],
+ [gl_cv_func_fopen_slash=yes],
+ [gl_cv_func_fopen_slash=no],
+ [
+changequote(,)dnl
+ case "$host_os" in
+ aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*)
+ gl_cv_func_fopen_slash="guessing no" ;;
+ *)
+ gl_cv_func_fopen_slash="guessing yes" ;;
+ esac
+changequote([,])dnl
+ ])
+ rm -f conftest.sl
+ ])
+ ;;
+ esac
+ case "$gl_cv_func_fopen_slash" in
+ *no)
+ AC_DEFINE([FOPEN_TRAILING_SLASH_BUG], [1],
+ [Define to 1 if fopen() fails to recognize a trailing slash.])
REPLACE_FOPEN=1
- AC_LIBOBJ([fopen])
;;
esac
])
+
+# Prerequisites of lib/fopen.c.
+AC_DEFUN([gl_PREREQ_FOPEN],
+[
+ AC_REQUIRE([AC_C_INLINE])
+])