[Bug bootstrap/51232] New: building the all-stage1 target requires several invocations to complete

[matt at use dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51232

             Bug #: 51232
           Summary: building the all-stage1 target requires several
                    invocations to complete
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: matt@use.net


As mentioned here:
http://gcc.gnu.org/ml/gcc-help/2011-11/msg00193.html

../configure --enable-bootstrap --prefix=/home/matt --enable-clocale=gnu
--with-system-zlib --enable-shared --with-demangler-in-ld --enable-lto
--with-build-config=bootstrap-lto --with-fpmath=sse
--enable-languages=c,c++,lto

'make all-stage1' has to be run several times in order to complete. there's no
errors, it just stops. it sometimes stops in different places depending on -j.

I sometimes get weird, difficult-to-reproduce bootstrap failures with -j8, and
this may be one of the root problems.

As mentioned in the thread, the same issue happens for "make
configure-stage2-gcc", which requires at least two runs. I can file that in a
separate bug, upon request.

Both Ian and I had the same issue, and while I'm unsure about his build
environment, mine is Ubuntu 11.10/amd64.