further specifcy cmake

Author: cvanelteren

.github/workflows/build.yml

@@ -70,12 +70,15 @@ jobs:
         env:
           CIBW_SKIP: "pp* *-musllinux*"
           CIBW_BEFORE_BUILD: >
+            python -c "
+            import os;
+            os.environ['GEOS_DIR'] = os.path.abspath('extern');
+            os.environ['CPATH'] = os.path.abspath('extern/include');
+            os.environ['LIBRARY_PATH'] = os.path.abspath('extern/lib');
+            os.environ['LD_LIBRARY_PATH'] = os.path.abspath('extern/lib')
+            " &&
             python -c "import utils; utils.GeosLibrary('${{ env.GEO_VERSION }}').build('extern', njobs=16)"
           CIBW_ENVIRONMENT: >
-            GEOS_DIR=/{project}/extern
-            CPATH=/{project}/extern/include
-            LIBRARY_PATH=/{project}/extern/lib
-            LD_LIBRARY_PATH=/{project}/extern/lib
             GEOS_LIBRARY=/{project}/extern/lib/libgeos.so
             GEOS_INCLUDE_DIR=/{project}/extern/include
             CMAKE_PREFIX_PATH=/{project}/extern