Rather than using zic to both compile and install zoneinfo files,

generate the files during the build and install them with install(1).
This was the one place in installworld where files (vs links) were
installed by a tool other than install.

Reviewed by:	edwin, jilles

share/zoneinfo/Makefile

@@ -29,6 +29,7 @@
 #
 
 CLEANFILES+=	yearistype
+CLEANDIRS+=	builddir
 CONTRIBDIR=	${.CURDIR}/../../contrib/tzdata/
 .PATH:		${CONTRIBDIR}
 
@@ -48,13 +49,39 @@ TZFILES+=	backward systemv
 
 TZFILES:=	${TZFILES:S/^/${CONTRIBDIR}/}
 
-all: yearistype
+TZBUILDDIR=	${.OBJDIR}/builddir
+TZBUILDSUBDIRS=	\
+		Africa \
+		America/Argentina \
+		America/Indiana \
+		America/Kentucky \
+		America/North_Dakota \
+		Antarctica \
+		Arctic \
+		Asia \
+		Atlantic \
+		Australia \
+		Etc \
+		Europe \
+		Indian \
+		Pacific \
+		SystemV
+
+all: zoneinfo
+
+.PHONY: zoneinfo
+zoneinfo: yearistype ${TDATA}
+	mkdir -p ${TZBUILDDIR}
+	cd ${TZBUILDDIR}; mkdir -p ${TZBUILDSUBDIRS}
+	umask 022; cd ${.CURDIR}; \
+	zic -D -d ${TZBUILDDIR} -p ${POSIXRULES} -m ${NOBINMODE} \
+	    ${LEAPFILE} -y ${.OBJDIR}/yearistype ${TZFILES}
 
 beforeinstall:
-	umask 022; cd ${.CURDIR}; \
-	zic -D -d ${DESTDIR}/usr/share/zoneinfo -p ${POSIXRULES} \
-	    -u ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
-	    ${LEAPFILE} -y ${.OBJDIR}/yearistype ${TZFILES}
+	cd ${TZBUILDDIR} && \
+	    find . -type f -print | xargs -I _FILE_ ${INSTALL} \
+	    -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+	    _FILE_ ${DESTDIR}/usr/share/zoneinfo/_FILE_
 	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
 	    ${CONTRIBDIR}/zone.tab ${DESTDIR}/usr/share/zoneinfo/