[Bug driver/63837] [5 Regression] r217391 causes kernel build errors with GCC_COMPARE_DEBUG=1

["jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63837

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #13)
> (In reply to Jakub Jelinek from comment #12)
> > Preapproved with proper ChangeLog entry.
> 
> Unfortunately, there seems to be a problem with the machine in the compile
> farm that I use for gcc development, and I'm not able to finish a
> bootstrap&regression test. I always get:

I'm bootstrapping/regtesting your patch now, will apply if it succeeds.
>From gcc-bugs-return-467532-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Nov 19 16:49:57 2014
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Subject: [Bug driver/63837] [5 Regression] r217391 causes kernel build errors with GCC_COMPARE_DEBUG=1
Date: Wed, 19 Nov 2014 16:49:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63837

--- Comment #16 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #15)
> I'm bootstrapping/regtesting your patch now, will apply if it succeeds.

Thanks!

The changelog could also mention PR driver/36312 so people complaining about
this bug there get a notification when the patch is committed.
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From: "hp at tmm dot cx" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug jit/63969] New: gccjit segfaults when it can't locate the correct gcc driver program
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idc969

            Bug ID: 63969
           Summary: gccjit segfaults when it can't locate the correct gcc
                    driver program
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: jit
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: hp at tmm dot cx

When running tut01-hello-world.c with a gccjit installed in a prefix, but PATH
not pointing to a gcc-5.0.0 driver the program segfaults.

$ LD_LIBRARY_PATH=/home/hp/Apps/gccjit/lib ./tut01-hello-world
Segmentation fault

It works correctly with a PATH set appropriately

$ PATH=/home/hp/Apps/gccjit/bin:$PATH LD_LIBRARY_PATH=/home/hp/Apps/gccjit/lib
./tut01-hello-world
hello world

gcc trunk r217763, build options ../configure --enable-host-shared
--enable-languages=jit --disable-bootstrap --enable-checking=release
--prefix=/home/hp/Apps/gccjit

make install'd

It would be better if an error message was printed rather than a segmentation
fault.