+ * javacomp.m4 (gt_JAVACOMP): Accept a source-version and an
+ optional target-version argument. Verify that the compiler
+ groks source of the specified source-version, or add -source
+ option as necessary. Verify that the compiler produces
+ bytecode in the specified target-version, or add -target and
+ -source options as necessary. Make the result of the test
+ available as variable CONF_JAVAC. Also log error output in
+ config.log.