[Boost-users] How do I build libraries with binaries using two versions of the same toolset

Subject: [Boost-users] How do I build libraries with binaries using two versions of the same toolset
From: Ted Byers (r.ted.byers_at_[hidden])
Date: 2013-12-11 14:25:18

On my OpenSuse box, version 12.3, the default version of gcc is 4.7.
I just successfully built gcc 4.8.2, with the binary names ending with
48 (so I have gcc48, g++48, &c.).  So, I have two versions of gcc on
this machine, and I believe I can use either by setting CC to the one
or the other in my make files.

Hence my problem.  I have built boost 1.55.0 on my Ubuntu 12.04 box
(but with the default names, so that gcc -v tells me that I am using
gcc 4.8.2: the default version of gcc on that version of Ubuntu is
4.6, which is too old for me to consider).  So, a basic build of the
boost libraries is simple, and something I have done before.  But I do
not know how to build boost twice, once with gcc 4.7 and once with gcc
4.8.2, and have them installed in such a way as to ensure that the two
builds do not clash and so that if I set CC to the one or the other
version of gcc, the right build of boost will automagically be
selected (it would be appreciated if someone who knows Gnu make better
than I do could show me how to effect that in my makefiles).
Obviously I am assuming that a single build of boost will not work
with both compilers (is that assumption correct?).  Unfortunately, I
have not yet found anything in the documentation that talks about
building boost with different versions of a given toolset on the same
machine.

Any help would be appreciated.

Thanks

Ted