Re: [Boost-build] having trouble compiling with gcc

Subject: Re: [Boost-build] having trouble compiling with gcc
From: Jürgen Hunold (juergen.hunold_at_[hidden])
Date: 2011-10-11 00:58:24

Hi Robert,

On Monday, 10. October 2011 23:53:30 Robert Ramey wrote:

> $ bjam -n --dump-tests toolset=gcc
> C:/BoostRelease/tools/build/v2/tools\gcc.jam:77: in gcc.init from module
> gcc error: toolset gcc initialization:
> error: provided command 'g++-4' not found

Please try  bjam -n --debug-configuration toolset=gcc
This should provide more diagnostics to post here.

> $ g++-4 -v
> Using built-in specs.
> Thread model: posix
> gcc version 4.5.3 (GCC)
> 
> So it looks like the path I'm using in my shell isn't the same one that
> bjam is using.

Yes.

> I've done the exact same experiments with my cygwin shell ... with (almost)
> the exact same
> results.  The only difference is the cygwin path displays differently -
> which seems OK to me.
> 
> The relevant section of my user-config.jam is:
> 
> # Configure specific gcc version, giving alternative name to use.
> # using gcc : 3.2 : g++-3.2 ;
> using gcc : : g++-4 :
>     <linkflags>-Wl,--enable-auto-import
>     <linkflags>-Wl,--enable-stdcall-fixup
> ;
> which looks correct to me - especially since my bjam line shows toolset=gcc
> and this is getting rendered as g++-4 by the time it fails to be found.

Well, if no gcc is found, it will just spit out the messages cited above and 
nothing more.

> Has anyone else had a similar problem and found the right solution? any
> advice appreciated.

The best solution (especially on windows) is just to provide the binary 
including the full path in unix syntax (with quotes if the path contains 
spaces)

 using gcc : : "c:/whatever/bin/g++-4" : ... ;

Yours,

Jürgen
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