Re: [libbacktrace] Fix bootstrap with gcc 4.4

[Ian Lance Taylor <iant at google dot com>]

On Wed, Sep 19, 2012 at 2:30 AM, Rainer Orth
<ro@cebitec.uni-bielefeld.de> wrote:
> Ian Lance Taylor <iant@google.com> writes:
>
>> __sync_* support.  Might be worth looking into why the test failed.
>
> On i386-pc-solaris2.*, __sync_bool_compare_and_swap_4 is missing.
> sparc-sun-solaris2.11 is fine, though.

Ah, I see.  __sync_bool_compare_and_swap only exists if compiling for
486 or above.  I guess I'm not too worried about that.

> The following patch fixes this for me (bootstrap currently into
> stage2).  I've removed the <stdint.h> includes in btest.c and dwarf.c
> since that's already covered by backtrace.h.
>
> Ok for mainline if that passes?

I don't particularly want backtrace.h, a public header file, to depend
on gstdint.h, a file created at build time.  This would mean that
backtrace.h can not be easily installed (it's not installed right now,
but I don't want to rule that out in the future).  But I guess it's OK
to have that dependency on ancient systems.

I installed this slightly different patch instead.

Thanks.

Ian


2012-09-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
	    Ian Lance Taylor  <iant@google.com>

        * configure.ac (GCC_HEADER_STDINT): Invoke.
        * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
        * btest.c: Don't include <stdint.h>.
        * dwarf.c: Likewise.
        * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.

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