Properly add maths library for demos

[freeglut] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d636bcb..29dd515 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -173,7 +173,7 @@ INSTALL(FILES ${FREEGLUT_HEADERS} DESTINATION include/GL)
 option( FREEGLUT_BUILD_DEMOS "Build FreeGLUT demos." ON )
 
 SET(DEMO_LIBS ${OPENGL_LIBRARY} ${LIBS})
-SET(DEMO_LIBS ${LIBS} m)
+LIST(APPEND DEMO_LIBS m)
 
 MACRO(ADD_DEMO name)
        if( FREEGLUT_BUILD_DEMOS )