chore: fix foreign test on macOS

.github/workflows/ci.yml

@@ -133,6 +133,7 @@ jobs:
         if: matrix.name == 'macOS'
         run: |
           cd build/stage1
+          cp /usr/local/opt/gmp/lib/libgmp.* lib/
           for f in lib/lean/libleanshared.dylib bin/lean bin/leanpkg bin/leanc bin/lake; do
             for lib in $(otool -L $f | tail -n +2 | cut -d' ' -f1); do
               # copy Homebrew dependencies

src/shell/CMakeLists.txt

@@ -79,7 +79,7 @@ ENDFOREACH(T)
 
 add_test(NAME leancomptest_foreign
          WORKING_DIRECTORY "${LEAN_SOURCE_DIR}/../tests/compiler/foreign"
-         COMMAND bash -c "${LEAN_BIN}/leanmake --always-make CXX=${CMAKE_CXX_COMPILER}")
+         COMMAND bash -c "${LEAN_BIN}/leanmake --always-make CXX='${CMAKE_CXX_COMPILER} ${LEANC_OPTS}'")
 add_test(NAME leancomptest_doc_example
          WORKING_DIRECTORY "${LEAN_SOURCE_DIR}/../doc/examples/compiler"
          COMMAND bash -c "${LEAN_BIN}/leanmake --always-make bin && ./build/bin/test hello world")