Re: include_next with OSF/1 cc

[Gary V. Vaughan]

2009/2/19 Bruno Haible <address@hidden>:
> [Re-adding bug-gnulib in CC. This is a reply to a reply to
>  <http://lists.gnu.org/archive/html/bug-gnulib/2009-01/msg00313.html>.]

Thanks, I'm currently catching up with over 4 months of mailing lists,
and probably not paying as much attention to those details as I should! :(

> Hi Gary,

Howdy Bruno,

> Gary V. Vaughan wrote:
>> 2009/1/24 Bruno Haible <address@hidden>:
>> > Gary V. Vaughan wrote:
>> >> !THE FOLLOWING IS A REGRESSION OVER m4-1.4.12, WHICH COMPILES AND
>> >> PASSES ALL TESTS!
>> $ ./configure CC="cc -nodtk" and CFLAGS="-O2 -msym -readonly_strings"
>> ...
>> cc -nodtk -std -std  -I. -I../lib  -I. -I. -I.. -I./.. -I../lib
>> -I./../lib -ieee  -O2 -msym -readonly_strings -c test-wctype.c
>>
>> But now, everything is compiled with 'cc -nodtk -std -std -ieee...',
>> and -nodtk seems to turn off #include_next support, neither of which
>> seems exactly right.
>
> The result is perfect. Who cares whether the gnulib uses include_next
> or not, if the package compiles fine?

Well, the *net* result is good enough.  It would be better if autoconf
didn't add -std to CFLAGS twice though...

>> However, it turns out that I can get a cleaner looking build that
>> passes tests by helping gnulib discover that inttypes.h does not
>> compile:
>>
>> $ ./configure CC=cc CFLAGS="-O2 -msym -readonly_strings" \
>> ac_cv_header_inttypes_h=no
>>
>> Still seems like a regression over 1.4.12 to me :-b
>
> It's not a regression because you are supposed to use the -nodtk option
> if you encounter problems with the DTK compiler and its header files. It's
> documented in the INSTALL file (see gnulib/doc/INSTALL*). I had written
> this paragraph because of a broken DTK <wchar.h>. The include file that is
> now broken is DTK <inttypes.h>.

Agreed.  I was less than half serious with my 'seems like a regression'
comment :)  It's unfortunate that ac_cv_header_inttypes_h has to be primed,
but it's a small price to pay for such an old platform.

Cheers,
    Gary
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