How to insert custom C++ compiler options into the conda-build flow?

Package Builders conda-build
1

I’d like to add the -Wno-c++11-narrowing compiler flag to the conda-build recipe for a particular project.
How do I do this?

2

Your best bet is to export the required environment variables in build.sh or bld.bat. Depending on the build system (CMake, autotools, etc), this might be CXXFLAGS or something else.

3

Thanks! It turns out this is doable directly in the meta.yaml file, but there is a pitfall that needs to be avoided. Please, see this SO post.