--- configure.in~	2010-03-19 10:14:15.000000000 -0500

+++ configure.in	2010-03-19 10:16:53.808478856 -0500

@@ -16,7 +16,7 @@

 dnl check SDL version                                                           

 AM_PATH_SDL(1.2.0,, AC_MSG_ERROR(lib SDL is needed))                            

 CFLAGS="$CFLAGS $SDL_CFLAGS"                                                    

-LIBS="$LIBS $SDL_LIBS"

+LIBS="$LIBS $SDL_LIBS -lm"

 dnl check sound

 audio_flag="-DAUDIO_ENABLED"