[cctbxbb] Compiling CCTBX with newer GCC on Mac

[Billy Poon]

Hi Lance,

Can try adding the "--compiler=gcc" flag to your configure.py command? That
should use your custom gcc compiler since it's the first one that's found
on your path. When you run "make," you should see a line that looks like
"On MacOS, using  gcc 4.8.5", but with your version of gcc. The latest gcc
that I have tested is 5.4.0 on Ubuntu 16.04, so I do not know if everything
will compile with gcc 6.3.0

--
Billy K. Poon
Research Scientist, Molecular Biophysics and Integrated Bioimaging
Lawrence Berkeley National Laboratory
1 Cyclotron Road, M/S 33R0345
Berkeley, CA 94720
Tel: (510) 486-5709
Fax: (510) 486-5909
Web: https://phenix-online.org

On Wed, Aug 16, 2017 at 2:49 PM, Lance Westerhoff <lance at quantumbioinc.com>
wrote:

>
> Hello All-
>
> How does one introduce an alternate gcc compiler for CCTBX on Mac? I must
> be missing it in the documentation.
>
> I don’t want to use the old one in /usr/bin (and instead I want to you my
> newer one in /opt/gcc). I’ve tried all of the standard methods used by
> other build systems (change the $PATH, set $CXX and $CC, etc) but to no
> avail. These environment variables seem to be disregarded. We do use this
> compiler for building CCTBX on linux without too much trouble, so I think
> the support should be there.
>
> Specifically:
>
> mac-build64:build jenkins$ env | grep CXX
> CXX=/opt/gcc/current/bin/g++
>
> mac-build64:build jenkins$ env | grep CC
> CC=/opt/gcc/current/bin/gcc
>
> mac-build64:build jenkins$ which gcc
> /opt/gcc/current/bin/gcc
>
> mac-build64:build jenkins$ g++ -v
> Using built-in specs.
> COLLECT_GCC=g++
> COLLECT_LTO_WRAPPER=/opt/gcc/gcc-6.3.0-08092017/libexec/
> gcc/x86_64-apple-darwin11.4.2/6.3.0/lto-wrapper
> Target: x86_64-apple-darwin11.4.2
> Configured with: ../gcc-6.3.0/configure --prefix=/opt/gcc/gcc-6.3.0-08092017
> --enable-languages=c,c++,fortran,objc --with-gmp=/opt/gcc/gcc-6.3.0-08092017
> --with-mpfr=/opt/gcc/gcc-6.3.0-08092017 --with-mpc=/opt/gcc/gcc-6.3.0-08092017
> --enable-libgomp --disable-multilib
> Thread model: posix
> gcc version 6.3.0 (GCC)
>
> mac-build64:build jenkins$ /opt/python/current/bin/python
> ../modules/cctbx_project/libtbx/configure.py cctbx
> Python: 2.7.9 "/opt/python/current/bin/python"
> Compiler: default
> ....
> This script is only applicable to Linux - exiting.
> Done.
>
> mac-build64:build jenkins$ make
> ./bin/libtbx.scons -j "`./bin/libtbx.show_number_of_processors`"
> scons: Reading SConscript files ...
> On MacOS, using  clang 4.2.0
> Xcode 4.6.3
> Build version 4H1503
> ...
>
>
> Thanks for your help!
>
> -Lance
> ____________________
> Lance M. Westerhoff, Ph.D.
> President and General Manager
> QuantumBio Inc.
>
> WWW:    http://www.quantumbioinc.com
> Email:    lance at quantumbioinc.com
>
>
>
>
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