[CMake] [ANNOUNCE] CMake 3.4.0-rc1 is now ready!

[Alan W. Irwin]

On 2015-10-22 13:30-0400 Brad King wrote:

> On 10/22/2015 11:28 AM, Orion Poplawski wrote:
>>>> This appears to have broken plplot's ada build on Fedora.
>>
>> FYI - builds still fail with cmake 3.4.0-rc2.  Have had time to look at it
>> closer.  plplot issue seems to be triggered by a change in Ada_FLAGS:
>>
>> -Ada_FLAGS =
>> -I/home/orion/fedora/plplot/plplot-5.11.1/build-3.3.2/examples/ada
>> -I/home/orion/fedora/plplot/plplot-5.11.1/bindings/ada
>> +Ada_FLAGS =
>>
>> but plplot I believe has custom Ada cmake platform support.  I am still
>> concerned about possible regressions here.
>
> Plplot's Ada support uses CMake internal APIs so it is plplot's
> responsibility to adapt to our changes:
>
> https://cmake.org/gitweb?p=cmake.git;a=blob;f=Modules/CMakeAddNewLanguage.txt;hb=v3.4.0-rc2
> Maintainers of external language support are responsible for porting
> it to each version of CMake as upstream changes are made.
>
> Our 3.4.0-rc2 release notes point out a change likely causing this problem:
>
> https://cmake.org/gitweb?p=cmake.git;a=blob;f=Help/release/3.4.rst;hb=v3.4.0-rc2#l271
> * The internal "CMAKE_<LANG>_COMPILE_OBJECT" rule variable now
>   substitutes compiler include flags in a separate "<INCLUDES>"
>   placeholder instead of the main "<FLAGS>" placeholder.
>
> Where Plplot currently writes:
>
>  SET(CMAKE_Ada_COMPILE_OBJECT
>    "<CMAKE_Ada_COMPILER> <FLAGS> -c <SOURCE> -o <OBJECT>
>    ")
>
> try:
>
>  if(NOT CMAKE_VERSION VERSION_LESS 3.4)
>    set(CMAKE_Ada_COMPILE_OBJECT
>      "<CMAKE_Ada_COMPILER> <INCLUDES> <FLAGS> -c <SOURCE> -o <OBJECT>")
>  else()
>    set(CMAKE_Ada_COMPILE_OBJECT
>      "<CMAKE_Ada_COMPILER> <FLAGS> -c <SOURCE> -o <OBJECT>")
>  endif()

Hi Brad:

I will give your suggestion a try.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
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Linux-powered Science
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