os-win32: drop ffs(3) prototype

The lack of ffs(3) in the MinGW headers is a hint that we shouldn't rely
on it.  MinGW 4.9.2 does not make it available for linking when QEMU's
./configure --enable-debug is used (release builds are fine though).

Now that all QEMU code has been switched to ctz32() there is no need for
ffs(3).

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-9-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

diff --git a/include/sysemu/os-win32.h b/include/sysemu/os-win32.h
index 9cc9e081392277afc970655368f7f773ca1d12ef..4035c4fe5408e7b19ccb98c651c8e17ee356a134 100644 (file)
--- a/include/sysemu/os-win32.h
+++ b/include/sysemu/os-win32.h
@@ -72,9 +72,6 @@
 #define sigsetjmp(env, savemask) setjmp(env)
 #define siglongjmp(env, val) longjmp(env, val)
 
-/* Declaration of ffs() is missing in MinGW's strings.h. */
-int ffs(int i);
-
 /* Missing POSIX functions. Don't use MinGW-w64 macros. */
 #undef gmtime_r
 struct tm *gmtime_r(const time_t *timep, struct tm *result);