Add boost:filesystem_version=3

.github/workflows/osrm-backend.yml

@@ -444,9 +444,9 @@ jobs:
       uses: actions/cache@v2
       with:
         path: ~/.conan
-        key: conan-${{ matrix.name }}-${{ github.sha }}
+        key: v2-conan-${{ matrix.name }}-${{ github.sha }}
         restore-keys: |
-          conan-${{ matrix.name }}-
+          v2-conan-${{ matrix.name }}-
     - name: Enable test cache
       uses: actions/cache@v2
       with:

CMakeLists.txt

@@ -474,6 +474,7 @@ if(ENABLE_CONAN)
     GENERATORS cmake_find_package
     KEEP_RPATHS
     NO_OUTPUT_DIRS
+    OPTIONS boost:filesystem_version=3 # https://stackoverflow.com/questions/73392648/error-with-boost-filesystem-version-in-cmake
   )
 
   add_dependency_includes(${CONAN_INCLUDE_DIRS_BOOST})