build,tools: do not force codesign prefix

Allow passing the prefix in via the PKGDIR env var. This will allow us
to use this same script to codesign the binary tarball.

PR-URL: https://github.com/nodejs/node/pull/14179
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Makefile

@@ -702,7 +702,8 @@ $(PKG): release-only
 		--release-urlbase=$(RELEASE_URLBASE) \
 		$(CONFIG_FLAGS) $(BUILD_RELEASE_FLAGS)
 	$(MAKE) install V=$(V) DESTDIR=$(PKGDIR)
-	SIGN="$(CODESIGN_CERT)" PKGDIR="$(PKGDIR)" bash tools/osx-codesign.sh
+	SIGN="$(CODESIGN_CERT)" PKGDIR="$(PKGDIR)/usr/local" bash \
+		tools/osx-codesign.sh
 	cat tools/osx-pkg.pmdoc/index.xml.tmpl \
 		| sed -E "s/\\{nodeversion\\}/$(FULLVERSION)/g" \
 		| sed -E "s/\\{npmversion\\}/$(NPMVERSION)/g" \

tools/osx-codesign.sh

@@ -8,4 +8,4 @@ if [ "X$SIGN" == "X" ]; then
   exit 0
 fi
 
-codesign -s "$SIGN" "$PKGDIR"/usr/local/bin/node
+codesign -s "$SIGN" "$PKGDIR"/bin/node