* cse.c (rtx_cost): Add default case in enumeration switch.

        * fix-header.c (recognized_macro): Likewise.
        (recognized_extern): Likewise.
        (write_rbrac): Likewise.
        * objc/objc-act.c (encode_aggregate): Likewise.
        (gen_declarator): Likewise.
        (gen_declspecs): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@17186 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 32 insertions, 4 deletions

diff --git a/gcc/fix-header.c b/gcc/fix-header.c
index 24006513f64..3b5ec3a760f 100644
--- a/gcc/fix-header.c
+++ b/gcc/fix-header.c
@@ -16,7 +16,7 @@ along with this program; if not, write to the Free Software
 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 /* This program massages a system include file (such as stdio.h),
-   into a form more conforming with ANSI/POSIX, and more suitable for C++:
+   into a form that is compatible with GNU C and GNU C++.
 
    * extern "C" { ... } braces are added (inside #ifndef __cplusplus),
    if they seem to be needed.  These prevent C++ compilers from name
@@ -145,14 +145,31 @@ typedef int symbol_flags;
 /* Used to mark names defined in the ANSI/ISO C standard.  */
 #define ANSI_SYMBOL 1
 
+/* We no longer massage include files for POSIX or XOPEN symbols,
+   as there are now several versions of the POSIX and XOPEN standards,
+   and it would be a maintenance nightmare for us to track them all.
+   Better to be compatible with the system include files.  */
+/*#define ADD_MISSING_POSIX 1 */
+/*#define ADD_MISSING_XOPEN 1 */
+
+#if ADD_MISSING_POSIX
 /* Used to mark names defined in the Posix.1 or Posix.2 standard.  */
 #define POSIX1_SYMBOL 2
 #define POSIX2_SYMBOL 4
+#else
+#define POSIX1_SYMBOL 0
+#define POSIX2_SYMBOL 0
+#endif
 
+#if ADD_MISSING_XOPEN
 /* Used to mark names defined in X/Open Portability Guide.  */
 #define XOPEN_SYMBOL 8
 /* Used to mark names defined in X/Open UNIX Extensions.  */
 #define XOPEN_EXTENDED_SYMBOL 16
+#else
+#define XOPEN_SYMBOL 0
+#define XOPEN_EXTENDED_SYMBOL 0
+#endif
 
 /* Used to indicate names that are not functions */
 #define MACRO_SYMBOL 512
@@ -239,7 +256,7 @@ tan\0tanh\0" },
   { "stdio.h", ANSI_SYMBOL,
       "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\
 fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\
-fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\00perror\0popen\0\
+fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0perror\0\
 printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\
 setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\
 tmpnam\0ungetc\0" },
@@ -475,6 +492,10 @@ recognized_macro (fname)
 	  else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++;
 	  else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++;
 	}
+      break;
+
+    default:
+      break;
     }
 }
 
@@ -487,9 +508,12 @@ recognized_extern (name, name_length, type, type_length)
   switch (special_file_handling)
     {
     case errno_h:
-      if (strcmp (name, "errno") == 0 && !seen_errno)
+      if (name_length == 5 && strncmp (name, "errno", 5) == 0 && !seen_errno)
 	seen_errno = 1, required_other--;
       break;
+
+    default:
+      break;
     }
 }
 
@@ -830,6 +854,9 @@ write_rbrac ()
 	fprintf (outf,
 		 "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
       break;
+
+    default:
+      break;
     }
 
 
@@ -1122,7 +1149,8 @@ main (argc, argv)
       cur_symbol_table_size = 0;
       for (entry = include_entry; ;)
 	{
-	  add_symbols (entry->flags, entry->names);
+	  if (entry->flags)
+	    add_symbols (entry->flags, entry->names);
 	  entry++;
 	  if (entry->name != CONTINUED)
 	    break;