Generate file which recognizes __need_FOPEN_MAX.

1 files changed, 25 insertions, 18 deletions

diff --git a/sysdeps/posix/mk-stdiolim.c b/sysdeps/posix/mk-stdiolim.c
index 5df460e89a..ecc6bb7499 100644
--- a/sysdeps/posix/mk-stdiolim.c
+++ b/sysdeps/posix/mk-stdiolim.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
 The GNU C Library is free software; you can redistribute it and/or
@@ -23,6 +23,7 @@ main()
 {
   /* These values correspond to the code in sysdeps/posix/tempname.c.
      Change the values here if you change that code.  */
+  puts ("#ifndef __need_FOPEN_MAX");
   printf("#define L_tmpnam %u\n", sizeof("/usr/tmp/") + 9);
   printf("#define TMP_MAX %u\n", 62 * 62 * 62);
 
@@ -31,11 +32,31 @@ main()
   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).  ANSI
+	    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
      <local_lim.h> will not define them if they are run-time variant (which
      is the case in the Hurd).  ANSI still requires that FOPEN_MAX and
      FILENAME_MAX be defined, however.  */
 
+  puts ("#if defined __need_FOPEN_MAX && !defined __defined_FOPEN_MAX");
+  puts ("# define __defined_FOPEN_MAX");
   printf("#define FOPEN_MAX %u\n",
 #ifdef	OPEN_MAX
 
@@ -50,22 +71,8 @@ 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).  ANSI
-	    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);
 }