[Bf-committers] Building the latest trunk/master on Mac

[Jens Verwiebe]

I have no time atm to look into it, her  just fast cmake setup:

Most convenient: use cmake gui and set up either 

• WITH_OPENMP OFF or
• set compiler to "../lib/darwin9-universak/clang-omp/bin/clang" and clang++ acoordingly + WITH_OPENMP ON

or cmdline should be:

• -D WITH_OPENMP=OFF  or
• -D WITH_OPENMP=ON -D CMAKE_CXX_COMPILER="../lib/darwin9-universak/clang-omp/bin/clang++" -D -D CMAKE_C_COMPILER="../lib/darwin9-universak/clang-omp/bin/clang"

clang++ or clang for cxx is both o.k., clang handless both typers, clang++ just a shim to clang.

Jens




Am 02.05.2014 um 00:25 schrieb Varanda - CG Labs <cglabs at mail.com>:

> 
> Thanks Campbell… I agree. however, the yesterday’s trunk fails to build in my Mac laptop with both settings: OpenMP on and OpenMP off.
> Now I am at home I can compare the settings between my Mac desktop with a build 2.69 which worked out-of-the-box with my laptop.
> BTW… that was the build I used to generate the patch for the Vertice Randomization T38317 that you have provide some guidance :-)
> 
> The tweak in CMakeLists.txt was an attempt to follow Jens’s suggestions (along with the README).
> 
> Hopefully comparing my machines I may figure out what is going on as both have the same 10.9.2 OSX.
> 
> On May 1, 2014, at 5:54 PM, Campbell Barton <ideasman42 at gmail.com> wrote:
> 
>> @Varanda, setting WITH_OPENMP should disable OpenMP no matter what
>> configuration you build on.
>> 
>> From searching CMakeLists.txt files, I can't see anywhere that would
>> enable this option, once disabled.
>> 
>> On Fri, May 2, 2014 at 7:37 AM, Varanda - CG Labs <cglabs at mail.com> wrote:
>>> Thanks Jens,
>>> 
>>> It is not clear yet to me: shouldn’t turning off WITH_OPENMP in ccmake makes the build happy ?
>>> How can I override gcc in CMakeLists.txt to point to clang-imp? There is no visible ease line likes setting CC or CXX = ABC
>>> 
>>> The closest definition regarding to the compiler there is:
>>> 
>>>               if(${XCODE_VERSION} VERSION_EQUAL 4 OR ${XCODE_VERSION} VERSION_GREATER 4 AND ${XCODE_VERSION} VERSION_LESS 4.3)
>>>                       # Xcode 4 defaults to the Apple LLVM Compiler.
>>>                       # Override the default compiler selection because Blender only compiles with gcc up to xcode 4.2
>>>                       set(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION "com.apple.compilers.llvmgcc42")
>>>                       message(STATUS "Setting compiler to: " ${CMAKE_XCODE_ATTRIBUTE_GCC_VERSION})
>>>               endif()
>>> 
>>> I am not familiar with cmake though. Some more digested information would be very welcome.
>>> 
>>> Thanks a lot,
>>> Varanda
>>> 
>>> On May 1, 2014, at 4:28 PM, Jens Verwiebe <info at jensverwiebe.de> wrote:
>>> 
>>>> Use the clang-omp  i provided in libs. ( instructions in README ).
>>>> Apple clang does not support openmp, but someone made it ON by default, which is not sufficient.
>>>> 
>>>> Jens
>>>> 
>>>> Am 01.05.2014 um 22:05 schrieb Varanda - CG Labs <cglabs at mail.com>:
>>>> 
>>>>> Hello,
>>>>> 
>>>>> I am having problems to build Blender for MacOSX (Mavericks) using the very latest trunk/Master in my MacBook.
>>>>> A couple months ago the entire process worked perfectly for my Mac desktop also with Mavericks.
>>>>> 
>>>>> The build complain about a missing lib: I guess libgompo, the logged error line is:
>>>>> 
>>>>> $ make
>>>>> Scanning dependencies of target datatoc
>>>>> [  0%] Building C object source/blender/datatoc/CMakeFiles/datatoc.dir/datatoc.c.o
>>>>> clang: warning: argument unused during compilation: '-fopenmp'
>>>>> Linking C executable ../../../bin/datatoc
>>>>> ld: library not found for -lgomp
>>>>> clang: error: linker command failed with exit code 1 (use -v to see invocation)
>>>>> 
>>>>> Disabling OpenMP on ccmake (WITH_OPENMP off) does not do any good.
>>>>> 
>>>>> Thanks in advance,
>>>>> Varanda
>>>>> _______________________________________________
>>>>> Bf-committers mailing list
>>>>> Bf-committers at blender.org
>>>>> http://lists.blender.org/mailman/listinfo/bf-committers
>>>> 
>>> _______________________________________________
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>> 
>> 
>> 
>> -- 
>> - Campbell
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> 
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Jens Verwiebe
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Tel.: +49 40 68 78 50
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mailto: info at jensverwiebe.de
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