Install an objfw-config package

Makefile

@@ -3,3 +3,26 @@ SUBDIRS = src tests
 tests: src
 
 include buildsys.mk
+include extra.mk
+
+install-extra:
+	i=ObjXMPP.oc; \
+	packagesdir="${DESTDIR}$$(${OBJFW_CONFIG} --packages-dir)"; \
+	${INSTALL_STATUS}; \
+	if ${MKDIR_P} $$packagesdir && ${INSTALL} -m 644 $$i $$packagesdir/$$i; then \
+		${INSTALL_OK}; \
+	else \
+		${INSTALL_FAILED}; \
+	fi
+
+uninstall-extra:
+	i=ObjXMPP.oc; \
+	packagesdir="${DESTDIR}$$(${OBJFW_CONFIG} --packages-dir)"; \
+	if test -f $$packagesdir/$$i; then \
+		if rm -f $$packagesdir/$$i; then \
+			${DELETE_OK}; \
+		else \
+			${DELETE_FAILED}; \
+		fi \
+	fi; \
+	rmdir $$packagesdir >/dev/null 2>&1 || true