Use SCANF_ISOC99_A instead of _IO_FLAGS2_SCANF_STD.

Change the callers of __vfscanf_internal and __vfwscanf_internal that
want C99-compliant behavior to communicate this via the new flags
argument, rather than setting bits on the FILE object.  This also
means these functions do not need to do their own locking.

Tested for powerpc and powerpc64le.

1 files changed, 1 insertions, 6 deletions

diff --git a/stdio-common/isoc99_fscanf.c b/stdio-common/isoc99_fscanf.c
index 4210d11f2b..d7b5993f3e 100644
--- a/stdio-common/isoc99_fscanf.c
+++ b/stdio-common/isoc99_fscanf.c
@@ -20,20 +20,15 @@
 #include <stdio.h>
 
 /* Read formatted input from STREAM according to the format string FORMAT.  */
-/* VARARGS2 */
 int
 __isoc99_fscanf (FILE *stream, const char *format, ...)
 {
   va_list arg;
   int done;
 
-  _IO_acquire_lock_clear_flags2 (stream);
-  stream->_flags2 |= _IO_FLAGS2_SCANF_STD;
-
   va_start (arg, format);
-  done = __vfscanf_internal (stream, format, arg, 0);
+  done = __vfscanf_internal (stream, format, arg, SCANF_ISOC99_A);
   va_end (arg);
 
-  _IO_release_lock (stream);
   return done;
 }