File reproducible-jar-mtime.patch of Package native-platform

--- native-platform-0.14/Makefile	2024-09-25 10:25:12.649998838 +0200
+++ native-platform-0.14/Makefile	2024-09-25 10:27:13.894145263 +0200
@@ -61,10 +61,10 @@
 
 jar: $(JCLASSESDIR)/%.class
 	mkdir -p $(JDOCDIR)
-	(cd $(JCLASSESDIR) ; $(JAVA_HOME)/bin/jar --create --file=../../$(JAR) .)
+	(cd $(JCLASSESDIR) ; $(JAVA_HOME)/bin/jar --date="$$(date -u -d @$${SOURCE_DATE_EPOCH:-$$(date +%s)} +%Y-%m-%dT%H:%M:%SZ)" --create --file=../../$(JAR) .)
 
 arch-jar: $(ODIR)/libnative-platform.so $(ODIR)/libnative-platform-curses.so
-	(cd $(ODIR) ; $(JAVA_HOME)/bin/jar --create --file=../../$(JAR_ARCH) *.so)
+	(cd $(ODIR) ; $(JAVA_HOME)/bin/jar --date="$$(date -u -d @$${SOURCE_DATE_EPOCH:-$$(date +%s)} +%Y-%m-%dT%H:%M:%SZ)" --create --file=../../$(JAR_ARCH) *.so)
 
 $(ODIR)/%.o: $(SRCDIR)/%.cpp $(IGEN)/native.h
 	mkdir -p $(ODIR)