[Bug testsuite/21947] New: libmudflap C++ testsuite executed even if c++ is not enabled

["giovannibajo at libero dot it" <gcc-bugzilla at gcc dot gnu dot org>]

I configured GCC HEAD (of 10 days ago) with "--enable-languages=c", then I 
bootstrapped it and ran "make -k check". In the test summary, I see failing 
mudflap C++ tests:

FAIL: libmudflap.c++/fail24-frag.cxx (test for excess errors)
WARNING: libmudflap.c++/fail24-frag.cxx compilation failed to produce executable
FAIL: libmudflap.c++/pass27-frag.cxx (test for excess errors)
WARNING: libmudflap.c++/pass27-frag.cxx compilation failed to produce executable
FAIL: libmudflap.c++/pass28-frag.cxx (test for excess errors)
WARNING: libmudflap.c++/pass28-frag.cxx compilation failed to produce executable
FAIL: libmudflap.c++/pass31-frag.cxx (test for excess errors)
WARNING: libmudflap.c++/pass31-frag.cxx compilation failed to produce executable
FAIL: libmudflap.c++/pass41-frag.cxx (test for excess errors)
WARNING: libmudflap.c++/pass41-frag.cxx compilation failed to produce executable
[...]


I don't think libmudflap.c++ should be run if C++ was not built.

-- 
           Summary: libmudflap C++ testsuite executed even if c++ is not
                    enabled
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: testsuite
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: giovannibajo at libero dot it
                CC: gcc-bugs at gcc dot gnu dot org,janis at gcc dot gnu dot
                    org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21947