-#serial 13
+#serial 18
-# Copyright (C) 2001, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003-2007, 2009-2010 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# only 32 files per process.
# On systems like the above, arrange to use the replacement function.
AC_DEFUN([gl_FUNC_MKSTEMP],
-[dnl
- AC_REPLACE_FUNCS(mkstemp)
- if test $ac_cv_func_mkstemp = no; then
- gl_cv_func_mkstemp_limitations=yes
- else
- AC_CACHE_CHECK([for mkstemp limitations],
- gl_cv_func_mkstemp_limitations,
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([AC_SYS_LARGEFILE])
+
+ AC_CHECK_FUNCS_ONCE([mkstemp])
+ if test $ac_cv_func_mkstemp = yes; then
+ AC_CACHE_CHECK([for working mkstemp],
+ [gl_cv_func_working_mkstemp],
[
mkdir conftest.mkstemp
- AC_TRY_RUN([
-# include <stdlib.h>
-# include <unistd.h>
- int main ()
- {
- int i;
- for (i = 0; i < 70; i++)
- {
- char template[] = "conftest.mkstemp/coXXXXXX";
- int fd = mkstemp (template);
- if (fd == -1)
- exit (1);
- close (fd);
- }
- exit (0);
- }
- ],
- gl_cv_func_mkstemp_limitations=no,
- gl_cv_func_mkstemp_limitations=yes,
- gl_cv_func_mkstemp_limitations=yes
- )
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT],
+ [[int i;
+ off_t large = (off_t) 4294967295u;
+ if (large < 0)
+ large = 2147483647;
+ for (i = 0; i < 70; i++)
+ {
+ char templ[] = "conftest.mkstemp/coXXXXXX";
+ int (*mkstemp_function) (char *) = mkstemp;
+ int fd = mkstemp_function (templ);
+ if (fd < 0 || lseek (fd, large, SEEK_SET) != large)
+ return 1;
+ close (fd);
+ }
+ return 0;]])],
+ [gl_cv_func_working_mkstemp=yes],
+ [gl_cv_func_working_mkstemp=no],
+ [gl_cv_func_working_mkstemp=no])
rm -rf conftest.mkstemp
- ]
- )
- fi
-
- if test $gl_cv_func_mkstemp_limitations = yes; then
- AC_LIBOBJ(mkstemp)
- AC_LIBOBJ(tempname)
- AC_DEFINE(mkstemp, rpl_mkstemp,
- [Define to rpl_mkstemp if the replacement function should be used.])
+ ])
+ if test $gl_cv_func_working_mkstemp != yes; then
+ REPLACE_MKSTEMP=1
+ AC_LIBOBJ([mkstemp])
+ gl_PREREQ_MKSTEMP
+ fi
+ else
+ HAVE_MKSTEMP=0
+ AC_LIBOBJ([mkstemp])
gl_PREREQ_MKSTEMP
- gl_PREREQ_TEMPNAME
fi
])
AC_DEFUN([gl_PREREQ_MKSTEMP],
[
])
-
-# Prerequisites of lib/tempname.c.
-AC_DEFUN([gl_PREREQ_TEMPNAME],
-[
- AC_CHECK_HEADERS_ONCE(sys/time.h)
- AC_CHECK_FUNCS(__secure_getenv gettimeofday)
-])