[Bug bootstrap/28072] New: [4.2 Regression] target-boehm-gc is being build for targets that do not support it

["ayers at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

This regression was cause by the patches allowing Boehm-GC to be build with
--enable-objc-gc.

The problem is that instead of testing whether java is part of enabled
languages (as java is a default langauge and the front end is build independent
of the runtime), the new configure test should test whether the java runtime
(target-libjava) is being build.

This not only affects sh-elf but any target that fails to build target-boehmgc.


-- 
           Summary: [4.2 Regression] target-boehm-gc is being build for
                    targets that do not support it
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: build
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ayers at gcc dot gnu dot org
GCC target triplet: sh-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28072