Using custom gcc version

[mahmoodn]

Is there any way to use custom gcc version instead of the default on the system? A method other than exporting CC, CXX.

[zachgk]

Hi @mahmoodn. If you are using the MAKE base build instead of the CMake one, then you can pass in a new value for CXX through make CXX=xxx .... You can also use bash right before the command such as CXX=xxx someBashCommand....

Can you explain what your use case is, how you are building mxnet, and what prevents you from passing in the gcc version through the CC and CXX environment variables?

[mahmoodn]

I had a compilation error using gcc-4.8.5 on centos 7.
I can reproduce the error but I think it was related to older gcc version.
So, I decided to test a newer gcc, e.g. 7.

Is there any note about minimum version of GCC for the latest git version?

[leezu]

Officially currently MXNet only supports gcc-4.8 build: https://github.com/apache/incubator-mxnet/blob/681cfc4/tools/dependencies/README.md

Can you provide more details on the build issues with gcc-4.8.5?