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--- a/src/mk/FreeBSD
+++ b/src/mk/FreeBSD
@@ -3,7 +3,5 @@
 
 ALL_CXXFLAGS = $(CXXFLAGS) $(COMMONCXXFLAGS) $(LOCALCXXFLAGS) \
 	 -pthread  \
-	 -DHAVE_VASPRINTF=1 \
-	 -DHAVE_MKDTEMP=1 \
 	 -DSTATFS_INCLUDE="<sys/mount.h>"
 LIBSYS =