Re: [boost] [trunk/math] Building fails.

From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2008-06-28 10:46:34

John Maddock wrote:
> 
> Rene Rivera wrote:
>>> The problem is that the Jamfile for the math lib is doing a compile
>>> test. That seems like a bad idea to me if there's no purpose other
>>> than
>>> to just do the test.
>>>
>>> So, is there a good reason for doing that test during build?
> 
> One of the three libraries built in that Jamfile won't build on Darwin 
> (because of no long double support for that platform in Boost.Math), the 
> test is there to suppress building of that library in that case - 
> without it you'll get thousands of pages of meaningless compiler errors 
> which won't be much use to the user :-(
> 
> Any better suggestions?  BTW I basically copied the code from what the 
> serialisation library does when there's no wchar_t support.

Hm, I'll have to think some more about that.

>>> PS. It makes it a PITA to test building Boost before merging to
>>> release
>>> with such things going on!
> 
> How so?  Not trying to awkward... just to understand the issues,

Initially just because I didn't know if it was a problem I introduced, 
since I was working on making build changes. Hence I spent a good number 
of minutes trying to figure out the ultimate programmer question "Did 
*I* break something?". It means that each time I do the top level build 
I'll have to take careful note if it's the failing test or something I 
did. And as you know humans aren't very good at doing careful repetitive 
tasks. So it's a PITA since it means more time I have to spend thinking 
about the output, and less about what I'm trying to fix.

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