Imported Upstream version 1.6.21

[platform/upstream/libpng.git] / scripts / makefile.tc3

diff --git a/scripts/makefile.tc3 b/scripts/makefile.tc3
index c917a08..1d01502 100644 (file)
--- a/scripts/makefile.tc3
+++ b/scripts/makefile.tc3
@@ -16,7 +16,9 @@ CP=copy
 
 # Pre-built configuration
 # See scripts\pnglibconf.mak for more options
+!ifndef PNGLIBCONF_H_PREBUILT
 PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
+!endif
 
 O=.obj
 E=.exe