Fix brew install timeout & unbound var on TravisCI

Author: zbeekman

.travis.yml

@@ -37,7 +37,7 @@ matrix:
       <<: *macOS
       env:
         - GCC=9
-          FC=gcc-${GCC}
+          FC=gfortran-${GCC}
       addons:
         homebrew:
           packages:
@@ -52,7 +52,7 @@ matrix:
         - GCC=9
           FC=gcc-${GCC}
           CC=gcc-${GCC}
-          CXX=gcc-${GCC}
+          CXX=g++-${GCC}
       addons:
         homebrew:
           brewfile: true

Brewfile

@@ -14,6 +14,6 @@
 brew 'cmake'
 brew 'gcc'
 brew 'mpich', args: ['cc=gcc-9', 'build-from-source']
-# brew 'opencoarrays', args: ['cc=gcc-9', 'build-from-source']
+# brew 'opencoarrays', args: ['cc=gcc-9', 'build-from-source', 'verbose']
 
 # [Homebrew]: http://brew.sh

developer-scripts/travis/test-script.cmake.sh

@@ -27,7 +27,7 @@ for version in ${GCC}; do
     export FC=gfortran-${version}
 
     ${FC} --version
-    ${CC} --version || true
+    ${CC:-} --version || true
     mpif90 --version && mpif90 -show
     mpicc --version && mpicc -show