* Makefile.am, acinclude.m4, configure.in: Imported GC 6.0 and merged local changes. From-SVN: r44994
* Makefile.am: Override gctest_OBJECTS so tests/test.c can be built. (libgcjgc_la_SOURCES): Remove typo. * tests/test.c: Fix struct names and includes for GC_GCJ_SUPPORT case. * Makefile.in: Rebuilt. From-SVN: r42524
From-SVN: r42370