-#serial 1
+#serial 18
-# On some systems (e.g., HPUX-10.20), mkstemp has the silly limit that it
-# can create no more than 26 files from a given template. Other systems
-# lack mkstemp altogether. On either type of system, arrange to use the
-# replacement function.
-AC_DEFUN([UTILS_FUNC_MKSTEMP],
-[dnl
- AC_REPLACE_FUNCS(mkstemp)
- if test $ac_cv_func_mkstemp = no; then
- utils_cv_func_mkstemp_limitations=yes
- else
- AC_CACHE_CHECK([for mkstemp limitations],
- utils_cv_func_mkstemp_limitations,
- [
- utils_tmpdir_mkstemp=mkst-$$$$
- # Arrange for deletion-upon-exception of this temporary directory.
- ac_clean_files="$ac_clean_files $utils_tmpdir_mkstemp"
- mkdir $utils_tmpdir_mkstemp
+# Copyright (C) 2001, 2003-2007, 2009-2010 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
- AC_TRY_RUN([
-# include <stdlib.h>
- int main ()
- {
- int i;
- for (i = 0; i < 30; i++)
- {
- char template[] = "$utils_tmpdir_mkstemp/aXXXXXX";
- int fd = mkstemp (template);
- if (fd == -1)
- exit (1);
- close (fd);
- }
- exit (0);
- }
- ],
- utils_cv_func_mkstemp_limitations=no,
- utils_cv_func_mkstemp_limitations=yes,
- utils_cv_func_mkstemp_limitations=yes
- )
+# On some hosts (e.g., HP-UX 10.20, SunOS 4.1.4, Solaris 2.5.1), mkstemp has a
+# silly limit that it can create no more than 26 files from a given template.
+# Other systems lack mkstemp altogether.
+# On OSF1/Tru64 V4.0F, the system-provided mkstemp function can create
+# only 32 files per process.
+# On systems like the above, arrange to use the replacement function.
+AC_DEFUN([gl_FUNC_MKSTEMP],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([AC_SYS_LARGEFILE])
- rm -rf $utils_tmpdir_mkstemp
- ]
- )
+ 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_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
+ ])
+ 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
fi
+])
- if test $utils_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.])
- fi
+# Prerequisites of lib/mkstemp.c.
+AC_DEFUN([gl_PREREQ_MKSTEMP],
+[
])