--- frei0r-1.3.orig/CMakeLists.txt	2011-03-09 10:02:25.000000000 +0100
+++ frei0r-1.3/CMakeLists.txt	2012-12-26 22:01:39.888753209 +0100
@@ -17,6 +17,8 @@
 endif (MSVC)
 
 set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_DEBUG})
+set(CMAKE_SHARED_LINKER_FLAGS -Wl,-lm)
+set(CMAKE_MODULE_LINKER_FLAGS -Wl,-lm)
 
 set (LIBDIR lib/frei0r-1)
 set (FREI0R_DEF ${CMAKE_SOURCE_DIR}/msvc/frei0r_1_0.def)