build-java-target.diff: allow to define java target

i#93115
allow to define java target, so the build is usable with the JVM 1.5
even when it is built with JDK 1.6

hsqldb/makefile.mk

@@ -66,7 +66,7 @@ BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" -Dbuild.compiler=gcj -f
 .IF "$(debug)"!=""
 BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" -Dbuild.debug="on" -f $(ANT_BUILDFILE) jar
 .ELSE
-BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" -f $(ANT_BUILDFILE) jar
+BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" -Dant.build.javac.source=$(JAVA_SOURCE_VER) -Dant.build.javac.target=$(JAVA_TARGET_VER) -f $(ANT_BUILDFILE) jar
 .ENDIF
 .ENDIF
 

rhino/makefile.mk

@@ -53,7 +53,7 @@ JAVA_HOME=
 .EXPORT : JAVA_HOME
 BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" -Dbuild.compiler=gcj jar
 .ELSE
-BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" jar
+BUILD_ACTION=$(ANT) -Dbuild.label="build-$(RSCREVISION)" -Dant.build.javac.source=$(JAVA_SOURCE_VER) -Dant.build.javac.target=$(JAVA_TARGET_VER) jar
 .ENDIF
 
 # --- Targets ------------------------------------------------------