- 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 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],
+ [gl_cv_func_working_mkstemp="guessing no"])