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-rw-r--r--CMake/options.cmake2
1 files changed, 2 insertions, 0 deletions
diff --git a/CMake/options.cmake b/CMake/options.cmake
index 1d7c08dd3..4064d7102 100644
--- a/CMake/options.cmake
+++ b/CMake/options.cmake
@@ -472,6 +472,8 @@ else ()
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/png)
endif ()
+set (HAVE_LIBPNG 1)
+
#######################################################################
if (X11_Xinerama_FOUND)
option (OPTION_USE_XINERAMA "use lib Xinerama" ON)