--- a/mk/os-FreeBSD.mk	
+++ a/mk/os-FreeBSD.mk	
@@ -12,4 +12,4 @@ 
 
 include ${MK}/os-BSD.mk
 
-CPPFLAGS+=	-D_WITH_GETLINE
+CPPFLAGS+=	-D_POSIX_C_SOURCE=200809