Allow overriding CFLAGS

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 53d22e69a68a04b3cd091689c9a460fb5ee9ad26..8021333df808d033cc7c95395509550807cc2cb4 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,7 +31,11 @@ find_package(GLUT)
 find_package(ALSA)
 find_package(Curses)
 
-set(CMAKE_C_FLAGS "-Wall -O3 -g")
+if(CMAKE_C_FLAGS STREQUAL "")
+  set(CMAKE_C_FLAGS "-O3 -g")
+endif()
+
+add_definitions(-Wall)
 
 add_subdirectory (libol)
 add_subdirectory (output)