The build on macOS from source has been broken for a while now. It's because recent versions of conda have dropped gcc as an available package (there are other related packages):
# Known version of conda with gcc available
docker container run --name conda4.4 continuumio/miniconda:4.4.10 conda search gcc
# Latest version of conda
docker container run --name condalatest continuumio/miniconda:latest conda search gcc
This PR simply drops the conditional installation of gcc on macOS; the latest macOS instances on Travis have gcc installed.
NOTE: As a temporary solution, this PR also contains pinned numpy and scikit-learn versions prior to installing dependencies. This is currently necessary in order to support Python 2.7 and to avoid #127. A long-term solution should fix #127 and drop support for Python 2.
The build on macOS from source has been broken for a while now. It's because recent versions of conda have dropped gcc as an available package (there are other related packages):
This PR simply drops the conditional installation of gcc on macOS; the latest macOS instances on Travis have gcc installed.
NOTE: As a temporary solution, this PR also contains pinned numpy and scikit-learn versions prior to installing dependencies. This is currently necessary in order to support Python 2.7 and to avoid #127. A long-term solution should fix #127 and drop support for Python 2.