Re: [Boost-build] An option to prepend paths to %PATH% before executing a test built with a toolset

Subject: Re: [Boost-build] An option to prepend paths to %PATH% before executing a test built with a toolset
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2015-10-20 16:30:32

On 20/10/2015 18:39, Edward Diener wrote:

>> I have no execution errors, even if PATH is not updated when executing
>> (maybe those different runtimes in each compiler are compatible or they
>> just embed some DLL lookup path in the binary, I don't know).
>
> If your 'link-static' means that there are no DLLs of any kind then you
> don't need the PATH set in any way at run-time, since you have a
> standalone executable. But I don't know if 'link-static' actually works
> this way given the different needs of all Boost libraries and the
> vagaries of different mingw(-64)/gcc implementations.

The exact option is "link=static runtime-link=static"

>> The main problem is with the old mingw (I'm trying to test gcc-3.4 and
>> gcc-4.2) which complains about mingwm10.dll.
>
> I think you are trying to hard to regression test versions of compilers
> which nobody seriously uses anymore. OTOH if you are only testing your
> own libraries with these ancient compilers it is understandable if you
> are still willing to support those compilers.

Nobody in some industries. I work in places where the compiler isn't 
updated in many years.

> As a solution to your problem try putting ( or making a symbolic link )
> of each of your batch files in the appropriate 'bin' directory of the
> mingw(-64)/gcc implementation. So your path to the batch file is the
> same as the path to the g++ executable. I believe that for gcc Boost
> Build automatically adds that directory to the front of the PATH when
> running tests.

Putting the .bat file in the bin directory works great. Now my 
compilation line for Mingw C++03 compilers is:

b2.exe 
toolset=gcc-3.4c++03,gcc-4.2c++03,gcc-4.3c++03,gcc-4.6c++03,gcc-4.7c++03,gcc-4.8c++03,gcc-4.9c++03,gcc-5.1c++03 
link=static runtime-link=static

Best,

Ion