* testsuite/libjava.jni/jni.exp (gcj_jni_compile_c_to_so): Use
additional option "-Wmissing-prototypes" for compiling C sources.
Print actual filename for pass/fail rather than $name.c.
* testsuite/libjava.jni/PR15133.java: New testcase file.
* testsuite/libjava.jni/PR15133.c: Likewise.
* testsuite/libjava.jni/PR15133.out: Likewise.
Co-Authored-By: Tom Tromey <tromey@redhat.com>
From-SVN: r81358
