--- Libc/Libc-391/db/mpool/Makefile.inc
+++ Libc/Libc-498/db/mpool/Makefile.inc
@@ -8,4 +8,7 @@
 .for _src in ${FBSDMISRCS}
 CFLAGS-${_src:R}-fbsd.${_src:E} += -D__DBINTERFACE_PRIVATE
 .endfor
+.for _src in mpool.c
+CFLAGS-${_src:R}-fbsd.${_src:E} += -UDEBUG
+.endfor
 .include "Makefile.fbsd_end"