Re: [boost] [predef] Boost build errors using predef-check

Subject: Re: [boost] [predef] Boost build errors using predef-check
From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2015-05-04 13:04:24

On Mon, May 4, 2015 at 11:57 AM, Edward Diener <eldiener_at_[hidden]>
wrote:

> On 5/4/2015 11:23 AM, Steven Watanabe wrote:
>
>> AMDG
>>
>> On 05/03/2015 10:42 PM, Edward Diener wrote:
>>
>>> In my jam file I have:
>>>
>>> import ../../predef/check/predef
>>>      : check require
>>>      : predef-check predef-require ;
>>>
>>> and in the requirments section of various Boost Build built-in rules I
>>> have:
>>>
>>> [ predef-check "BOOST_COMP_GNUC >= 4.3" : <cxxflags>-std=c++0x ]
>>>
>>> When I try to process my jamfile I get numerous warnings along the line
>>> of:
>>>
>>>
>>>> C:/Programming/VersionControl/modular-boost/libs/vmd/test\../../predef/check/pre
>>>>
>>>> def.jam:61: in predef-check
>>>> warning: object is empty
>>>> <snip>
>>>>
>>>
>>> Any ideas of what is wrong ?
>>>
>>>
>> The signature of predef.check is
>>
>> rule check ( expressions + : language ? : true-properties * :
>> false-properties * )
>>
>> You're skipping the 'language' argument.
>> If you leave it blank it defaults to cpp.
>>
>> The error is on the line:
>>    local exe_target = [ $(_check_exe_($(language))).name ] ;
>>
>
> You are correct.
>
> I now tried, for a 'run' rule within an 'alias':
>
> [ run test_after_array_elem.cpp : : : [ predef-check "BOOST_COMP_GNUC" >=
> 4.3 : : <cxxflags>-std=c++0x ] ]
>
> Only to receive:
>
> Jamfile.v2:52: syntax error at keyword ]

===
[ run test_after_array_elem.cpp : : : [ predef-check "BOOST_COMP_GNUC >=
4.3" : : <cxxflags>-std=c++0x ] ]

The predef condition needs to be quoted as a single arg.

-- 
-- Rene Rivera
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