@@ -20,11 +20,11 @@
 	   OFMacros.h		\
 	   OFStream.h
 
 include ../buildsys.mk
 
-CPPFLAGS += -I..
+CPPFLAGS += -I.. -pthread
 CFLAGS += ${LIB_CFLAGS}
 OBJCFLAGS += ${LIB_CFLAGS}
 LD = ${OBJC}
-LDFLAGS += ${LIB_LDFLAGS}
+LDFLAGS += ${LIB_LDFLAGS} -pthread
 LIBS += -lobjc