WITHOUT_SERVICESDB:

Add src.conf knob to disable the installation of /var/db/services.db

Default to leaving services.db in place, but allow the removal of the
file and its creation with a src.conf knob.

This file ends up being 2MB in size.  For small systems this is a waste
of space but its a tradeoff.

Reviewed by:	bdrewery
Differential Revision:	https://reviews.freebsd.org/D9655

etc/Makefile

@@ -192,12 +192,17 @@ distribution:
 	    ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 644 \
 		${BIN1} ${DESTDIR}/etc; \
 	    cap_mkdb ${CAP_MKDB_ENDIAN} ${DESTDIR}/etc/login.conf; \
-	    services_mkdb ${CAP_MKDB_ENDIAN} -q -o ${DESTDIR}/var/db/services.db \
-		${DESTDIR}/etc/services; \
 	    ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 755 \
 		${BIN2} ${DESTDIR}/etc; \
 	    ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 600 \
 		master.passwd nsmb.conf opieaccess ${DESTDIR}/etc;
+
+.if ${MK_SERVICESDB} != "no"
+	cd ${.CURDIR}; \
+	    services_mkdb ${CAP_MKDB_ENDIAN} -q -o ${DESTDIR}/var/db/services.db \
+		${DESTDIR}/etc/services;
+.endif
+
 .if ${MK_BSNMP} != "no"
 	cd ${.CURDIR}; \
 	    ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 600 \

share/mk/src.opts.mk

@@ -160,6 +160,7 @@ __DEFAULT_YES_OPTIONS = \
     RESCUE \
     ROUTED \
     SENDMAIL \
+    SERVICESDB \
     SETUID_LOGIN \
     SHAREDOCS \
     SOURCELESS \

tools/build/mk/OptionalObsoleteFiles.inc

@@ -7527,6 +7527,10 @@ OLD_DIRS+=usr/share/sendmail/cf
 OLD_DIRS+=usr/share/sendmail
 .endif
 
+.if ${MK_SERVICESDB} == no
+OLD_FILES+=var/db/services.db
+.endif
+
 .if ${MK_SHAREDOCS} == no
 OLD_FILES+=usr/share/doc/pjdfstest/README
 OLD_DIRS+=usr/share/doc/pjdfstest

tools/build/options/WITHOUT_SERVICESDB

@@ -0,0 +1,3 @@
+.\" $FreeBSD$
+Set to not install
+.Pa /var/db/services.db .