Re: [Plplot-devel] Having trouble compiling PLplot with gcc --std=c99

[Arjen M. <Arj...@de...>]

Hi Alan,



> -----Original Message-----
> From: Alan W. Irwin [mailto:ir...@be...]
> Sent: Tuesday, January 26, 2016 8:58 PM
> To: Arjen Markus; PLplot development list
> Cc: Andrew Ross; and...@us...
> Subject: RE: [Plplot-devel] Having trouble compiling PLplot with gcc --std=c99
>
> On 2016-01-26 09:10-0000 Arjen Markus wrote:
>
> > I tried this [--std=c99] on Cygwin, using gcc 4.9.3 and that gave no complaints.
> So it may be your particular version of gcc.
>
> Thanks for your help trying to pin down the cause of this issue.
>
> Your build test result inspired me to try another build with
> --std=c99 and xwin excluded from the build using the CMake options -
> DPLD_xwin=OFF -DPLD_tk=OFF.  And the PLplot build was a complete success
> for that case!
>
> So it appears this --std=c99 (but not --std=gnu99) build bug shows up only if there
> is an attempt to build the xwin device.
>
> Some of your previous tests on Cygwin have included xwin and some have not
> because you had to take some extra steps to allow xwin to be part of the build.  Did
> your current build test with --std=c99 include xwin?
>
> If your successful build with --std=c99 did include xwin, then that is pretty clear
> evidence that there is nothing wrong with our xwin code and my gcc --std=c99 xwin
> build issue is instead due to my gcc version which is "gcc (Debian 4.9.2-10) 4.9.2"
>
I tried it again - this time with the X Window server running to instruct the build system to include the xwin device, but it still built fine. No errors from the gcc compiler.

Regards,

Arjen



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