Re: repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

2018-02-13 Thread Hans Åberg 


> On 13 Feb 2018, at 12:24, Torbjörn Granlund  wrote:
> 
> Dennis Clarke  writes:
> 
>  As a minor annoyance it does cause gcc ( recent versions 7.x ) to fail.
>  Oddly enough ye Oracle Studio 12.6 cc running in strict c99 mode is fine
>  and happy with everything. That is a new experience for me. However the
>  performance on sparc is miserable.  We all know this and we know why.
> 
> I like Vincent's proposal; I had thought we needed to add something
> which leaves garbage in the object files.

There is a discussion here [1]: The translation unit is the input source, it 
seems, which must be non-empty, but not the resulting object file; however, a 
conforming compiler can complain about whatever.

1. https://bytes.com/topic/c/answers/222053-empty-translation-unit-valid


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Re: repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

2018-02-13 Thread Torbjörn Granlund 
Dennis Clarke  writes:

  As a minor annoyance it does cause gcc ( recent versions 7.x ) to fail.
  Oddly enough ye Oracle Studio 12.6 cc running in strict c99 mode is fine
  and happy with everything. That is a new experience for me. However the
  performance on sparc is miserable.  We all know this and we know why.
  
I like Vincent's proposal; I had thought we needed to add something
which leaves garbage in the object files.

About sparc GMP performance, yes it's very poor except for T4-T5 where
it's acceptable.

-- 
Torbjörn
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Re: repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

2018-02-12 Thread Dennis Clarke 

On 11/02/18 08:15 PM, Vincent Lefevre wrote:

On 2018-02-11 10:40:55 +0100, Torbjorn Granlund wrote:

Dennis Clarke <dcla...@blastwave.org> writes:

   repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

Our nightly builds get a few of those too, as warnings.  I've decided I
can live with those as no platform seems to actually dislike the
resulting object files.


Or you can just add a dummy typedef to ensure that the translation unit
is not empty.



As a minor annoyance it does cause gcc ( recent versions 7.x ) to fail.
Oddly enough ye Oracle Studio 12.6 cc running in strict c99 mode is fine
and happy with everything. That is a new experience for me. However the
performance on sparc is miserable.  We all know this and we know why.

Dennis


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Re: repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

2018-02-11 Thread Vincent Lefevre 
On 2018-02-11 10:40:55 +0100, Torbjorn Granlund wrote:
> Dennis Clarke <dcla...@blastwave.org> writes:
> 
>   repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit
> 
> Our nightly builds get a few of those too, as warnings.  I've decided I
> can live with those as no platform seems to actually dislike the
> resulting object files.

Or you can just add a dummy typedef to ensure that the translation unit
is not empty.

-- 
Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
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Re: repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

2018-02-11 Thread Torbjörn Granlund 
Dennis Clarke <dcla...@blastwave.org> writes:

  repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

Our nightly builds get a few of those too, as warnings.  I've decided I
can live with those as no platform seems to actually dislike the
resulting object files.
  

-- 
Torbjörn
Please encrypt, key id 0xC8601622
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repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit

2018-02-10 Thread Dennis Clarke 


Most likely something that can be ignored but saw this on my PPC970MP
based Debian system when doing a compile with pedantic CFLAGS :

.
.
.
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -D__GMP_WITHIN_GMP -I.. 
-g -m64 -std=iso9899:1999 -Wfatal-errors -pedantic-errors 
-Wl,-rpath=/usr/local/lib -mcpu=970 -maltivec -mfull-toc -mregnames -c 
repl-vsnprintf.c  -fPIC -DPIC -o .libs/repl-vsnprintf.o
repl-vsnprintf.c:396:0: error: ISO C forbids an empty translation unit 
[-Wpedantic]

 #endif /* ! HAVE_VSNPRINTF */

compilation terminated due to -Wfatal-errors.
gmake[2]: *** [Makefile:435: repl-vsnprintf.lo] Error 1
gmake[2]: Leaving directory 
'/usr/local/build/gmp-6.1.2_linux_4.13.0-1-powerpc64.003/printf'

gmake[1]: *** [Makefile:956: all-recursive] Error 1
gmake[1]: Leaving directory 
'/usr/local/build/gmp-6.1.2_linux_4.13.0-1-powerpc64.003'

gmake: *** [Makefile:775: all] Error 2
Command exited with non-zero status 2


I removed the obvious options and config.log says :

using ABI="mode64"
  CC="gcc"
  CFLAGS="-g -m64 -std=iso9899:1999 -Wl,-rpath=/usr/local/lib 
-mcpu=970 -maltivec -mfull-toc -mregnames"

  CPPFLAGS=""
  CXX="g++"
  CXXFLAGS="-g -m64 -std=iso9899:1999 -Wl,-rpath=/usr/local/lib 
-mcpu=970 -maltivec -mfull-toc -mregnames"
  MPN_PATH=" powerpc64/mode64/p4 powerpc64/p4 
powerpc64/mode64/p3-p7 powerpc64/p3-p7 powerpc64/mode64 powerpc64/vmx 
powerpc64 generic"



Which compiles and tests just fine.

Dennis

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