diff -r b3d3ef1e15b5 cmake/sdlchecks.cmake
--- a/cmake/sdlchecks.cmake Mon Jan 14 20:20:33 2013 -0300
+++ b/cmake/sdlchecks.cmake Fri Jan 18 11:41:45 2013 +0800
@@ -551,7 +551,7 @@
   if(PTHREADS)
     if(LINUX)
       set(PTHREAD_CFLAGS "-D_REENTRANT")
-      set(PTHREAD_LDFLAGS "-lpthread")
+      set(PTHREAD_LDFLAGS "-pthread")
     elseif(BSDI)
       set(PTHREAD_CFLAGS "-D_REENTRANT -D_THREAD_SAFE")
       set(PTHREAD_LDFLAGS "")
@@ -624,7 +624,8 @@

       if(PTHREADS_SEM)
         check_c_source_compiles("#include <pthread.h>
-                                 #include <semaphore.h>" HAVE_PTHREADS_SEM)
+                                 #include <semaphore.h>
+                                 int main(int argc, char **argv) {}" HAVE_PTHREADS_SEM)
         if(HAVE_PTHREADS_SEM)
           check_c_source_compiles("
               #include <pthread.h>