A patch to build emacs 23.4 with clang

gistfile1.diff

diff --git a/src/nsfont.m b/src/nsfont.m
index aaec130..cecaa10 100644
--- a/src/nsfont.m
+++ b/src/nsfont.m
@@ -1209,7 +1209,6 @@ nsfont_draw (struct glyph_string *s, int from, int to, int x, int y,
     DPSstroke (context);
 
     DPSgrestore (context);
-    return to-from;
   }
 
 #else  /* NS_IMPL_COCOA */
@@ -1278,10 +1277,10 @@ nsfont_draw (struct glyph_string *s, int from, int to, int x, int y,
       }
 
     CGContextRestoreGState (gcontext);
-    return;
   }
 #endif  /* NS_IMPL_COCOA */
 
+  return to-from;
 }
 
 
diff --git a/src/nsimage.m b/src/nsimage.m
index a4535c5..f9a20e3 100644
--- a/src/nsimage.m
+++ b/src/nsimage.m
@@ -334,7 +334,7 @@ static EmacsImage *ImageList = nil;
   NSColor *rgbColor;
 
   if (bmRep == nil || color == nil)
-    return;
+    return self;
 
   if ([color colorSpaceName] != NSCalibratedRGBColorSpace)
     rgbColor = [color colorUsingColorSpaceName: NSCalibratedRGBColorSpace];
diff --git a/src/nsterm.m b/src/nsterm.m
index cfe82b6..76d35ab 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -5431,7 +5431,7 @@ ns_term_shutdown (int sig)
   NSTRACE (performDragOperation);
 
   if (!emacs_event)
-    return;
+    return NO;
 
   position = [self convertPoint: [sender draggingLocation] fromView: nil];
   x = lrint (position.x);  y = lrint (position.y);