- 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.])
+ 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])