cmake: whoops, Sam and I both fixed this bug at the same time. :)
diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index 7ce9bc9..e2e89a2 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -862,8 +862,6 @@ macro(CheckPTHREAD)
elseif(LINUX)
set(PTHREAD_CFLAGS "-D_REENTRANT")
set(PTHREAD_LDFLAGS "-pthread")
- elseif(ANDROID)
- # pthreads are builtin
elseif(BSDI)
set(PTHREAD_CFLAGS "-D_REENTRANT -D_THREAD_SAFE")
set(PTHREAD_LDFLAGS "")