[Bug other/45994] New: During 'make clean', some variables not propagating properly

["phantall at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45994

           Summary: During 'make clean', some variables not propagating
                    properly
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: phantall@gmail.com


During a make clean, when it attempts to execute 'make clean' for
<target>/libgcc, the 'CC' variable is populated with 'CC_FOR_TARGET' which may
not be populated during a 'clean'.  This cascades into another problem on a few
different lines in <target>/libgcc/Makefile.  For example, on (or about) <gcc
build path>/sparcv9-sun-solaris2.10/libgcc/Makefile:199, the following line is
present:


version := $(shell $(CC) -dumpversion)


$(CC) typically populates this line with something of the form:


<gcc build path>/./gcc/xgcc -B<some path> -B<some other path> (and so on)


... when this Makefile is used.  However, at the moment it's populating CC with
the empty string, which results in that 'version' line looking (in effect) like
this:


version := ($shell -B<some path> -B<some other path> <etc> -dumpversion)

... causing bash to exit with the error:

/bin/bash: -/: invalid option
(bash usage info below this line)

Temporary workaround is to enter the <target>/libgcc directory and manually
'make clean', or during 

-Brian