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-rw-r--r--CMakeLists.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56f5d02b..4c7b3dd7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,11 @@ add_definitions(-Wno-attributes)
add_definitions(-DSINGLETHREADED)
add_definitions(${CXX_COMPILE_FLAGS})
+find_package(PNG)
+if (PNG_FOUND)
+ add_definitions(-DHAVE_PNG)
+endif ()
+
# dependency checking
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/externals/cmake-modules/")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_SOURCE_DIR}/CMakeTests)