diff -up openjpeg_v1_4_sources_r697/codec/convert.c.libpng15 openjpeg_v1_4_sources_r697/codec/convert.c --- openjpeg_v1_4_sources_r697/codec/convert.c.libpng15 2012-06-17 12:21:38.107105920 -0500 +++ openjpeg_v1_4_sources_r697/codec/convert.c 2012-06-17 12:21:53.735910455 -0500 @@ -47,6 +47,7 @@ #ifdef _WIN32 #include "../libs/png/png.h" #else +#include <zlib.h> #include <png.h> #endif /* _WIN32 */ #endif /* HAVE_LIBPNG */