--- Makefile.orig	2021-10-05 01:14:29.487360000 +0200
+++ Makefile	2021-10-05 01:14:35.578323000 +0200
@@ -27,6 +27,7 @@
 
 USERS=		vpopmail
 GROUPS=		vchkpw
+CFLAGS+=	-fcommon
 
 VCFGDIR?=	${WRKDIR}/vcfg
 VCFGFILES?=	inc_deps lib_deps tcp.smtp