Re: [Playerstage-developers] conditional builds

[Brian G. <br...@ge...>]

On Sep 26, 2005, at 4:23 PM, Richard vaughan wrote:
>
> The reason I did it that way at all is because I couldn't figure  
> out the syntax for a two-condition conditional.
>
> Here's your code:
>
> noinst_PROGRAMS =
> if INCLUDE_BOOST_SIGNALS
>   noinst_PROGRAMS += test
> endif
>
> but originally building test also depended on BUILD_TESTS (or  
> similar) being set. Automake's 'if' only allows one variable to be  
> tested, and I couldn't get a test-within a test to work.
>
> If BUILD_TESTS is no longer to be used, the problem goes away. But  
> multiple conditions might come up elsewhere...?

That's a good point; I guess I had thrown away WITH_TESTS along the  
way...

According to the automake docs, you can nest conditionals to any  
depth.  I've just checked in the following (in client_libs/libplayerc+ 
+/test/Makefile.am):

noinst_PROGRAMS =
if INCLUDE_BOOST_SIGNALS
if WITH_TESTS
   noinst_PROGRAMS += test
endif
endif

automake accepts this syntax and 'test' does not get built on my  
machine (which is correct, since I don't have Boost installed).

     brian.

-- 
Brian Gerkey
br...@ge...
http://gerkey.org