- Add MAX_MAIL_DIRS option to define a number of mailboxes to process

PR:		ports/132815
Submitted by:	Fernan Aguero <fernan.aguero@gmail.com> (maintainer)

mail/nmzmail/Makefile

@@ -23,6 +23,18 @@ USE_GMAKE=	yes
 PLIST_FILES=	bin/nmzmail
 PORTDOCS=	README	NEWS
 
+pre-extract:
+.if !defined(MAX_MAIL_DIRS)
+	@ ${ECHO_MSG} "You can define MAX_MAIL_DIRS=n."
+	@ ${ECHO_MSG} "nmzmail will only process this many mailboxes, the default is 32."
+.endif
+
+post-extract:
+.if defined(MAX_MAIL_DIRS)
+	@ ${SED} -i.bak -e 's/MAX_MAIL_DIRS 32/MAX_MAIL_DIRS ${MAX_MAIL_DIRS}/' \
+	${WRKSRC}/src/nmzmail.c
+.endif
+
 post-install:
 .if !defined(NOPORTDOCS)
 	@${INSTALL} -d ${DOCSDIR}/