add DYLD_LIBRARY_PATH for macos-x86_64

Author: mattip

.github/workflows/posix.yml

@@ -102,11 +102,11 @@ jobs:
           build_lib "$PLAT" "$INTERFACE64" "0"
         fi
 
-    - name: Setup tmate session
-      if: ${{ failure() }}
-      uses: mxschmitt/action-tmate@v3
-      with:
-        limit-access-to-actor: true
+    # - name: Setup tmate session
+    #   if: ${{ failure() }}
+    #   uses: mxschmitt/action-tmate@v3
+    #   with:
+    #     limit-access-to-actor: true
 
     - name: Build and test wheel
       run: |

tools/build_steps.sh

@@ -125,6 +125,8 @@ function do_build_lib {
         Darwin-x86_64)
             local bitness=64
             local target_flags="TARGET=CORE2"
+            # Pick up the gfortran runtime libraries
+            export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH
             ;;
         *-i686)
             local bitness=32