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- AC_DEFUN([gl_FUNC_MKSTEMP],
- [
- AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
- AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
- AC_CHECK_FUNCS_ONCE([mkstemp])
- if test $ac_cv_func_mkstemp = yes; then
- AC_CACHE_CHECK([for working mkstemp],
- [gl_cv_func_working_mkstemp],
- [
- mkdir conftest.mkstemp
- AC_RUN_IFELSE(
- [AC_LANG_PROGRAM(
- [AC_INCLUDES_DEFAULT],
- [[int result = 0;
- int i;
- off_t large = (off_t) 4294967295u;
- if (large < 0)
- large = 2147483647;
- umask (0);
- for (i = 0; i < 70; i++)
- {
- char templ[] = "conftest.mkstemp/coXXXXXX";
- int (*mkstemp_function) (char *) = mkstemp;
- int fd = mkstemp_function (templ);
- if (fd < 0)
- result |= 1;
- else
- {
- struct stat st;
- if (lseek (fd, large, SEEK_SET) != large)
- result |= 2;
- if (fstat (fd, &st) < 0)
- result |= 4;
- else if (st.st_mode & 0077)
- result |= 8;
- if (close (fd))
- result |= 16;
- }
- }
- return result;]])],
- [gl_cv_func_working_mkstemp=yes],
- [gl_cv_func_working_mkstemp=no],
- [case "$host_os" in
-
- *-gnu*) gl_cv_func_working_mkstemp="guessing yes" ;;
-
- *) gl_cv_func_working_mkstemp="guessing no" ;;
- esac
- ])
- rm -rf conftest.mkstemp
- ])
- case "$gl_cv_func_working_mkstemp" in
- *yes) ;;
- *)
- REPLACE_MKSTEMP=1
- ;;
- esac
- else
- HAVE_MKSTEMP=0
- fi
- ])
- AC_DEFUN([gl_PREREQ_MKSTEMP],
- [
- ])
|