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Diffstat (limited to 'sysdeps/posix/mk-stdiolim.c')
-rw-r--r--sysdeps/posix/mk-stdiolim.c57
1 files changed, 32 insertions, 25 deletions
diff --git a/sysdeps/posix/mk-stdiolim.c b/sysdeps/posix/mk-stdiolim.c
index c268b642de..8858ebeae5 100644
--- a/sysdeps/posix/mk-stdiolim.c
+++ b/sysdeps/posix/mk-stdiolim.c
@@ -42,27 +42,48 @@ main()
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,\n\
Boston, MA 02111-1307, USA. */\n\
\n\
-#ifndef _STDIO_H\n\
+#if !defined _STDIO_H && !defined __need_FOPEN_MAX\n\
# error \"Never include <bits/stdio_lim.h> directly; use <stdio.h> instead.\"\n\
#endif\n\
\n");
/* These values correspond to the code in sysdeps/posix/tempname.c.
Change the values here if you change that code. */
- printf ("#define L_tmpnam %u\n", sizeof ("/usr/tmp/") + 9);
- printf ("#define TMP_MAX %u\n", 62 * 62 * 62);
+ puts ("#ifndef __need_FOPEN_MAX");
+ printf ("# define L_tmpnam %u\n", sizeof ("/usr/tmp/") + 9);
+ printf ("# define TMP_MAX %u\n", 62 * 62 * 62);
- puts ("#ifdef __USE_POSIX");
- printf ("# define L_ctermid %u\n", sizeof ("/dev/tty"));
- printf ("# define L_cuserid 9\n");
- puts ("#endif");
+ puts ("# ifdef __USE_POSIX");
+ printf ("# define L_ctermid %u\n", sizeof ("/dev/tty"));
+ printf ("# define L_cuserid 9\n");
+ puts ("# endif");
+
+ printf (" #define FILENAME_MAX %u\n",
+#ifdef PATH_MAX
+ PATH_MAX
+#else
+ /* This is supposed to be the size needed to hold the longest file
+ name string the implementation guarantees can be opened.
+ PATH_MAX not being defined means the actual limit on the length
+ of a file name is runtime-variant (or it is unlimited). ISO
+ says in such a case FILENAME_MAX should be a good size to
+ allocate for a file name string. POSIX.1 guarantees that a
+ file name up to _POSIX_PATH_MAX chars long can be opened, so
+ this value must be at least that. */
+ 1024 /* _POSIX_PATH_MAX is 255. */
+#endif
+ );
+
+ puts ("#endif\n");
/* POSIX does not require that OPEN_MAX and PATH_MAX be defined, so
<bits/local_lim.h> will not define them if they are run-time
variant (which is the case in the Hurd). ISO still requires
that FOPEN_MAX and FILENAME_MAX be defined, however. */
- printf ("#define FOPEN_MAX %u\n",
+ puts ("#if defined __need_FOPEN_MAX && !defined __defined_FOPEN_MAX");
+ puts ("# define __defined_FOPEN_MAX");
+ printf ("# define FOPEN_MAX %u\n",
#ifdef OPEN_MAX
OPEN_MAX
@@ -76,22 +97,8 @@ main()
#endif
);
+ puts ("#endif");
+ puts ("#undef __need_FOPEN_MAX");
- printf ("#define FILENAME_MAX %u\n",
-#ifdef PATH_MAX
- PATH_MAX
-#else
- /* This is supposed to be the size needed to hold the longest file
- name string the implementation guarantees can be opened.
- PATH_MAX not being defined means the actual limit on the length
- of a file name is runtime-variant (or it is unlimited). ISO
- says in such a case FILENAME_MAX should be a good size to
- allocate for a file name string. POSIX.1 guarantees that a
- file name up to _POSIX_PATH_MAX chars long can be opened, so
- this value must be at least that. */
- 1024 /* _POSIX_PATH_MAX is 255. */
-#endif
- );
-
- exit(0);
+ exit (0);
}