Re: gnulib:test-stdalign failing on powerpc-darwin8, gcc-4.0

[David Fang]

Hi Paul,
	I tried applying the patch (just the stdalign.in.h bit) to the 
powerpc-darwin8 build, but I still see (when changing the assert to 
printf):

static_char_alignas 5
static_char_Alignas 4
static_short_alignas 2
static_short_Alignas 0
static_int_alignas 4
static_int_Alignas 0
static_long_alignas 4
static_long_Alignas 0
static_int64_t_alignas 0
static_int64_t_Alignas 0
static_float_alignas 4
static_float_Alignas 0
static_double_alignas 0
static_double_Alignas 0
static_struct1_alignas 5
static_struct1_Alignas 4
static_struct2_alignas 0
static_struct2_Alignas 6
static_struct3_alignas 0
static_struct3_Alignas 4
static_struct4_alignas 0
static_struct4_Alignas 4

I also happened to test GNTLS-3.3.9 (containing gnulib) on 
powerpc-darwin9, also using apple-gcc-4.0, before patching, and it 
passed all tests.

I'm not entirely sure what is different between them.
If you have any suggestions, I can try them tonight.

Fang

> David Fang wrote:
> >  Does this mean that it falls back to the distributed copy in
> >  gl/stdalign.h?
>
> Yes, actually, it's basically a copy of gl/stdalign.in.h.
>
> >  I don't see any evidence of the replacement stdalign.h being tested in
> >  config.log.
>
> The replacement is not tested, because its runtime behavior can't easily be 
> tested with cross-compilation.
>
> Do you observe the same problem with Apple's GCC 4.2?
>
> Do the attached patches work around the problem for you?  The second one's 
> for HP compilers and you can ignore it if you like.

--
David Fang
http://www.csl.cornell.edu/~fang/