Update nightly-build.yml

MODFLOW-USGS · Jan 19, 2021 · 62e95fd · 62e95fd
1 parent 39adbb5
commit 62e95fd
Showing 1 changed file with 8 additions and 6 deletions.
diff --git a/.github/workflows/nightly-build.yml b/.github/workflows/nightly-build.yml
@@ -56,12 +56,14 @@ jobs:
       shell: bash
       if: runner.os == 'macOS'
       run: |
-        brew info --cask gfortran
-        brew install --cask gfortran
-        ls -l /usr/local/gfortran/bin/
-        sudo ln -fs /usr/local/gfortran/bin/gfortran /usr/local/bin/gfortran
-        sudo ln -fs /usr/local/gfortran/bin/gcc /usr/local/bin/gcc
-        sudo ln -fs /usr/local/gfortran/bin/g++ /usr/local/bin/g++
+        if ! command -v gfortran &> /dev/null
+        then
+            brew info --cask gfortran
+            brew install --cask gfortran
+            ls -l /usr/local/gfortran/bin/
+            sudo ln -fs /usr/local/gfortran/bin/gfortran /usr/local/bin/gfortran
+            sudo ln -fs /usr/local/gfortran/bin/gcc /usr/local/bin/gcc
+            sudo ln -fs /usr/local/gfortran/bin/g++ /usr/local/bin/g++
 
     - name: Print GNU compiler versions
       shell: bash