Hi Michael,

the waf build system uses the "wscript" files for configuration and build.
It's Python-based (which is just one ++ ;)) => use "#" to comment out lines.

=> Just try to comment out this line in spikeyhal/wscript (line 114 for me):
     conf.check_cxx(lib='rt', uselib_store='RT', mandatory=1)
     # alternatively, try to set "mandatory" to "False" (or 0)

Non-existing "uselibs" (like RT in this case) do NOT trigger an error, so you
don't need any further changes.

Cheers,
Eric



Quoting Michael Schmuker <[log in to unmask]>:

> Hi,
>
> Eric, thanks for your help. I got a bit further by using
>
> $ LIBRARY_PATH=<path_to_googletest_build>  
> CPATH=<path_to_googletest_include> ./waf configure --boost-includes  
> ... --boost-libs …
>
> Two other dependencies then emerged, first gsl (which was  
> straightforward to install with homebrew), and Qt - I used Qt4 from  
> the anaconda python distribution and added the paths to the  
> respective environment variables for the compiler.
>
> However, now the dependency on librt is a real dealbreaker. Librt is  
> not available on OSX. Going by the forums, this seems to be a rather  
> common problem on OSX (and somehow linked to Qt), and it is often  
> solved by simply not linking against rt, without loss of  
> functionality (maybe some of the librt symbols are provided by some  
> other standard lib on OSX).
>
> Is there an easy way to skip the test for librt presence, and tell  
> the linker not to link against librt? I assume that this means  
> tweaking the build system. Unfortunately my waf skills are  
> definitely underdeveloped, and I can’t figure out how to do this.
>
> Any hints or ideas? Many thanks in advance :)
>
> Best,
>
> Michael
>
> P.S.: By the way, why does Spikeyhal require Qt? Could Spikeyhal be  
> built without it, without loss of core functionality?
>
>
>
>> On 1 Oct 2015, at 17:33, Eric Müller <[log in to unmask]> wrote:
>>
>> Hey Michael,
>>
>> the standard GCC env vars should work (i.e. that's a workaround ;-)).
>> In this case:
>>
>> $ export CPLUS_INCLUDE_PATH=/to/parent/dir/of/gtest/folder # or CPATH
>> $ waf configure
>>
>> Cheers,
>> Eric
>>
>>
>> Am 01.10.2015 18:11 schrieb Michael Schmuker  
>> <[log in to unmask]>:
>>>
>>> Dear Spikey-Users,
>>>
>>> I’m trying to build the spikey-demo package on OSX. I installed  
>>> log4cxx and libusb via homebrew, and I use the latest boost via  
>>> the anaconda python distribution. This made waf configure happy.  
>>> But one problem is still remaining:
>>>
>>> I wasn’t able to point waf to the GoogleTest library, which is in  
>>> a custom location on my machine. Is there a command line switch or  
>>> an environment variable that I can use to point waf to the gtest  
>>> headers?
>>>
>>> Thanks in advance,
>>>
>>> Michael
-- 
gggqGZZ

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