Update libpng to 1.2.38 to patch a minor security issue.
diff --git a/scripts/makefile.vcwin32 b/scripts/makefile.vcwin32
index fc6ece6..8cd806a 100644
--- a/scripts/makefile.vcwin32
+++ b/scripts/makefile.vcwin32
@@ -1,6 +1,11 @@
# makefile for libpng
# Copyright (C) 1998 Tim Wegner
-# For conditions of distribution and use, see copyright notice in png.h
+# Copyright (C) 2006,2009 Glenn Randers-Pehrson
+
+# This code is released under the libpng license.
+# For conditions of distribution and use, see the disclaimer
+# and license in png.h
+
# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
# To use, do "nmake /f scripts\makefile.vcwin32"
@@ -64,9 +69,6 @@
pngwio$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
-pngtest$(O): png.h pngconf.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
-
pngtrans$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
@@ -83,6 +85,9 @@
-$(RM) $@
$(AR) $(ARFLAGS) -out:$@ $(OBJS) $(ERRFILE)
+pngtest$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
pngtest.exe: pngtest$(O) libpng.lib
$(LD) $(LDFLAGS) -out:$@ pngtest$(O) libpng.lib ..\zlib\zlib.lib $(ERRFILE)