@@ -27,16 +27,18 @@
        OFThread.m		\
        OFURLEncoding.m		\
        OFXMLFactory.m		\
        ${ASPRINTF_C}
 
-INCLUDESTMP = ${SRCS:.c=.h}
-INCLUDES = ${INCLUDESTMP:.m=.h}	\
+INCLUDESTMP := ${SRCS:.c=.h}
+INCLUDES := ${INCLUDESTMP:.m=.h}	\
 	   OFMacros.h
+
+SRCS += ${OBJC_SYNC_M}
 
 include ../buildsys.mk
 
 CPPFLAGS += -I..
 CFLAGS += ${LIB_CFLAGS}
 OBJCFLAGS += ${LIB_CFLAGS}
 LD = ${OBJC}
 LDFLAGS += ${LIB_LDFLAGS}