[Bug c/35925] New: -g1 causes "Error: file number 1 already allocated"

["mrs at mythic-beasts dot com" <gcc-bugzilla at gcc dot gnu dot org>]

$ echo "void foo(void) { }" >test.c
$ gcc -g1 -S test.c
$ gcc -g1 -c test.s
test.s: Assembler messages:
test.s:79: Error: file number 1 already allocated

If "-g1" is changed to "-g", "-g0" or "-g2", or is removed, the error goes
away.

This causes problems when building glibc with CFLAGS="-g1".  glibc's configure
script invokes gcc as above in order to test whether --noexecstack is
available.  It gets an error and wrongly concludes that --noexecstack is not
available, which means libc.so doesn't get the benefit of a non-executable
stack.

Is this supposed to work, or should glibc work around it, perhaps by not
passing CFLAGS to the second invocation of gcc?


-- 
           Summary: -g1 causes "Error: file number 1 already allocated"
           Product: gcc
           Version: 4.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mrs at mythic-beasts dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35925