Rely on checked in generated files.
diff --git a/Makefile b/Makefile
index 4d72032..8fd4db2 100644
--- a/Makefile
+++ b/Makefile
@@ -2,17 +2,15 @@
 
 default: debug
 
-generate:
-	if [ -f jni/Makefile ]; then make -C jni generate; fi
-debug: generate
+debug:
 	./gradlew --warning-mode=all assembleDebug bundleDebug
-release: generate
+release:
 	./gradlew --warning-mode=all assembleRelease bundleRelease
-install: generate
+install:
 	./gradlew --warning-mode=all installDebug
 lint:
 	./gradlew --warning-mode=all lint
-archive: generate
+archive:
 	./gradlew --warning-mode=all uploadArchives
 sync: archive
 	rsync -av --chmod=g+w --chown=:gs-priv $(HOME)/MAVEN/com/ ghostscript.com:/var/www/maven.ghostscript.com/com/
@@ -26,6 +24,6 @@
 
 clean:
 	rm -rf .gradle build
-	rm -rf jni/.cxx jni/.externalNativeBuild jni/.gradle jni/build jni/libmupdf/generated
+	rm -rf jni/.cxx jni/.externalNativeBuild jni/.gradle jni/build
 	rm -rf lib/.gradle lib/build
 	rm -rf app/.gradle app/build