From ee1f6dde909a02484a525657eb626f6136e3b1bb Mon Sep 17 00:00:00 2001
From: finley <finley.pan@bytedance.com>
Date: Tue, 11 Sep 2018 08:28:03 +0800
Subject: [PATCH] libpng, libz and libbz2 added in CMakeLists

---
 CMakeLists.txt       | 6 ++++++
 demos/CMakeLists.txt | 5 ++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6df370cf..da69d713 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -83,6 +83,9 @@ endif()
 
 find_package(OpenGL REQUIRED)
 find_package(Freetype REQUIRED)
+find_package(PNG REQUIRED)
+find_package(ZLIB REQUIRED)
+find_package(BZIP2 REQUIRED)
 
 if(freetype-gl_WITH_GLEW)
     find_package(GLEW REQUIRED)
@@ -150,6 +153,9 @@ if(freetype-gl_BUILD_MAKEFONT)
         ${FREETYPE_LIBRARIES}
         ${MATH_LIBRARY}
         ${GLEW_LIBRARY}
+  ${PNG_LIBRARY}
+  ${ZLIB_LIBRARY}
+  ${BZIP2_LIBRARY}
     )
 
     if(MSVC AND NOT (MSVC_VERSION LESS 1900))
diff --git a/demos/CMakeLists.txt b/demos/CMakeLists.txt
index 5d55646c..c8ea512a 100644
--- a/demos/CMakeLists.txt
+++ b/demos/CMakeLists.txt
@@ -20,7 +20,10 @@ macro(CREATE_DEMO _target _sources)
         ${OPENGL_LIBRARY}
         ${FREETYPE_LIBRARIES}
         ${MATH_LIBRARY}
-        ${GLEW_LIBRARY}
+        ${GLEW_LIBRARY}  
+ ${PNG_LIBRARY}
+  ${ZLIB_LIBRARY}
+  ${BZIP2_LIBRARY}
     )
 
     if(MSVC AND NOT (MSVC_VERSION LESS 1900))