Try removing something that looks like a typo

.github/workflows/build-macos-package.yml

@@ -34,8 +34,6 @@ jobs:
     - name: Build macOS package
       run: |
         make pkg
-      env:
-        PREFIX: /Users/runner/work/gf-core/gf-core/dist/gf-3.10.4-git/
 
     - name: Copy packages
       run: |

bin/build-binary-dist.sh

@@ -29,7 +29,7 @@ set -x                             # print commands before executing them
 pushd src/runtime/c
 bash setup.sh configure --prefix="$prefix"
 bash setup.sh build
-bash setup.sh install prefix="$destdir$prefix"
+bash setup.sh install prefix="$prefix"
 popd
 
 ## Build the python binding to the C run-time system
@@ -72,7 +72,7 @@ export DYLD_LIBRARY_PATH="$extralib" LD_LIBRARY_PATH="$extralib"
 cabal install -w "$ghc" --only-dependencies -fserver -fc-runtime $extra
 cabal configure -w "$ghc" --prefix="$prefix" -fserver -fc-runtime $extra
 cabal build
-  # Building the example grammars will fail, because the RGL is missing
+# Building the example grammars will fail, because the RGL is missing
 cabal copy --destdir="$destdir"  # create www directory
 
 ## Build the RGL and copy it to $destdir