Make sure to get the headers from zlib correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12521 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/runtime/libpng/Makefile b/runtime/libpng/Makefile
index 5bd65751edb5d777b549a602091da33fd020126a..9d9b8ddf3359659fbceb4ea95d7cb6f92bb1bba8 100644 (file)
--- a/runtime/libpng/Makefile
+++ b/runtime/libpng/Makefile
@@ -11,6 +11,7 @@ BYTECODE_LIBRARY=1
 BUILD_ARCHIVE=1
 DONT_BUILD_RELINKED=1
 LIBRARYNAME=png
+CPPFLAGS += -I../zlib
 
 Source = png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
               pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \