Index: Makefile
==================================================================
--- Makefile
+++ Makefile
@@ -16,16 +16,16 @@
 
 tarball:
 	echo "Generating tarball for version ${PACKAGE_VERSION}..."
 	rm -fr objfw-${PACKAGE_VERSION} objfw-${PACKAGE_VERSION}.tar \
 		objfw-${PACKAGE_VERSION}.tar.gz
-	mkdir objfw-${PACKAGE_VERSION}
-	git --work-tree=objfw-${PACKAGE_VERSION} checkout .
-	rm objfw-${PACKAGE_VERSION}/.gitignore \
-		objfw-${PACKAGE_VERSION}/.travis.yml
+	fossil tarball --name objfw-${PACKAGE_VERSION} current - \
+		--exclude '.fossil-settings/*,.gitignore,.travis.yml' | \
+		ofarc -ttgz -xq -
 	cp configure config.h.in objfw-${PACKAGE_VERSION}/
-	ofarc -cq objfw-${PACKAGE_VERSION}.tar $$(find objfw-${PACKAGE_VERSION})
+	ofarc -cq objfw-${PACKAGE_VERSION}.tar \
+		$$(find objfw-${PACKAGE_VERSION} | sort)
 	rm -fr objfw-${PACKAGE_VERSION}
 	gzip -9 objfw-${PACKAGE_VERSION}.tar
 	rm -f objfw-${PACKAGE_VERSION}.tar
 	gpg -b objfw-${PACKAGE_VERSION}.tar.gz || true
 	echo "Generating documentation..."
@@ -34,10 +34,10 @@
 	rm -fr objfw-docs-${PACKAGE_VERSION} objfw-docs-${PACKAGE_VERSION}.tar \
 		objfw-docs-${PACKAGE_VERSION}.tar.gz
 	mv docs objfw-docs-${PACKAGE_VERSION}
 	echo "Generating docs tarball for version ${PACKAGE_VERSION}..."
 	ofarc -cq objfw-docs-${PACKAGE_VERSION}.tar \
-		$$(find objfw-docs-${PACKAGE_VERSION})
+		$$(find objfw-docs-${PACKAGE_VERSION} | sort)
 	rm -fr objfw-docs-${PACKAGE_VERSION}
 	gzip -9 objfw-docs-${PACKAGE_VERSION}.tar
 	rm -f objfw-docs-${PACKAGE_VERSION}.tar
 	gpg -b objfw-docs-${PACKAGE_VERSION}.tar.gz || true