Initialize all struct members.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7173 8ced0084-cf51-0410-be5f-012b33b47a6e

Externals/libpng/SConscript

@@ -3,8 +3,9 @@
 Import('env')
 import sys
 
-if env.has_key('shared_libpng') and env['shared_libpng']:
-	env['LIBS'] += 'png'
+if env.has_key('shared_png') and env['shared_png']:
+	# Currently using libwxpng in the shared case
+	#env['LIBS'] += ['png']
 	Return()
 
 files = [