Provide some vars for use in template's targets.

These new vars are DESTDIR (by default XBPS_DESTDIR/pkgname-version),
SRCPKGDESTDIR (XBPS_DESTDIR/sourcepkg-version) and FILESDIR
(XBPS_TEMPLATESDIR/pkgname/files).

This simplifies packages that used them.

--HG--
extra : convert_revision : 287ea7128cb5df19870ca7aff0a3b8f99a11d63a

templates/glibc/template

@@ -51,24 +51,22 @@ pre_configure()
 
 pre_install()
 {
-	# Create destdir/etc/ld.so.conf
-	mkdir -p $XBPS_DESTDIR/$pkgname-$version/etc
-	echo "/usr/local/lib" > $XBPS_DESTDIR/$pkgname-$version/etc/ld.so.conf
+	# Create DESTDIR/etc/ld.so.conf
+	mkdir -p ${DESTDIR}/etc
+	echo "/usr/local/lib" > ${DESTDIR}/etc/ld.so.conf
 }
 
 post_install()
 {
-	local destdir=$XBPS_DESTDIR/$pkgname-$version
-
 	# Replace hardcoded path to bash.
 	. $XBPS_HELPERSDIR/replace-interpreter.sh
-	replace_interpreter bash $destdir/usr/bin/ldd
+	replace_interpreter bash ${DESTDIR}/usr/bin/ldd
 
 	# On x86_64, add dynamic linker's 32bit version to ldd.
 	if [ "$xbps_machine" = "x86_64" ]; then
 		rtldlist="/lib/ld-linux.so.2 /lib/ld-linux-x86-64.so.2"
 		sed -i "s|^RTLDLIST.*$|RTLDLIST=\"$rtldlist\"|" \
-			$destdir/usr/bin/ldd
+			${DESTDIR}/usr/bin/ldd
 	fi
 
 	# Create nsswitch.conf
@@ -84,7 +82,7 @@ post_install()
 	echo "services: files";		\
 	echo "ethers: files";		\
 	echo "rpc: files";		\
-	) > $destdir/etc/nsswitch.conf
+	) > ${DESTDIR}/etc/nsswitch.conf
 
 	wrksrc=${wrksrc%%/build_obj}
 }