trying another way to pass path to gcc

Author: cvanelteren

.github/workflows/build.yml

@@ -68,14 +68,14 @@ jobs:
 
       - name: Build wheels
         env:
-          CIBW_SKIP: "pp* *-musllinux*"
+          CIBW_CONFIG_SETTINGS: >
+            --global-option=build_ext
+            --global-option="-I{project}/extern/include"
+            --global-option="-L{project}/extern/lib"
+            CIBW_SKIP: "pp* *-musllinux*"
           CIBW_BEFORE_BUILD: >
-            python -c "import os; os.environ.update({'GEOS_DIR': os.path.abspath('extern'), 'CPATH': os.path.abspath('extern/include'), 'LIBRARY_PATH': os.path.abspath('extern/lib'), 'LD_LIBRARY_PATH': os.path.abspath('extern/lib')})" &&
             python -c "import utils; utils.GeosLibrary('${{ env.GEO_VERSION }}').build('extern', njobs=16)"
           CIBW_ENVIRONMENT: >
-            GEOS_LIBRARY=/{project}/extern/lib/libgeos.so
-            GEOS_INCLUDE_DIR=/{project}/extern/include
-            CMAKE_PREFIX_PATH=/{project}/extern
             SETUPTOOLS_USE_DISTUTILS=stdlib
           CIBW_TEST_COMMAND: >
             cd {project}