[Bug bootstrap/56750] New: static -lstdc++ logic bleeds into all subdirs

[vapier at gentoo dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56750

             Bug #: 56750
           Summary: static -lstdc++ logic bleeds into all subdirs
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: vapier@gentoo.org
                CC: ebotcazou@gcc.gnu.org


the recent PR54820 change that adds -static-libstdc++ -static-libgcc to the
bootstrap flags ends up putting the LDFLAGS into all subdirs even unrelated to
the stage1 bootstrapping

for example, if you get the latest sourceware.org tree and try to build gdb,
you'll find those flags now showing up in LDFLAGS

$ make all-gdb
...
gcc -g -O2   -static-libstdc++    \
        -o gdb gdb.o ...