PIP_NO_FILESYSTEM and PIP_NO_THREADS

libs/main/thread/pithread.cpp

@@ -17,6 +17,7 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#ifndef PIP_NO_THREADS
 #include "pithread.h"
 
 #include "piincludes_p.h"
@@ -1086,3 +1087,4 @@ bool PIThread::_waitForFinish(PISystemTime max_tm) {
 #endif
 	return false;
 }
+#endif // PIP_NO_THREADS