Add GeographicLib to vcpkg

Author: talregev

.github/workflows/vcpkg.yml

@@ -100,6 +100,7 @@ jobs:
           boost-timer
           tbb
           pybind11
+          geographiclib
 
       - name: On Failure, upload vcpkg logs
         if: failure()
@@ -155,6 +156,7 @@ jobs:
               -DGTSAM_USE_SYSTEM_EIGEN=OFF \
               -DGTSAM_USE_SYSTEM_METIS=OFF \
               -DGTSAM_USE_SYSTEM_PYBIND=ON \
+              -DGTSAM_ENABLE_GEOGRAPHICLIB=ON \
               -DGTSAM_SUPPORT_NESTED_DISSECTION=ON \
               -DCTEST_EXTRA_ARGS='${{ matrix.ctest_extra_flags }}' \
               -DPYTEST_EXTRA_ARGS='${{ matrix.pytest_extra_flags }}'

cmake/HandleGeographicLib.cmake

@@ -28,10 +28,11 @@ if(NOT GeographicLib_FOUND)
   endif()
 endif()
 
-set(GTSAM_HAVE_GEOGRAPHICLIB ${GeographicLib_FOUND})
+set(GTSAM_HAVE_GEOGRAPHICLIB ${GeographicLib_FOUND} PARENT_SCOPE)
 
 if(TARGET GeographicLib::GeographicLib)
   message(STATUS "Using GeographicLib: ${GeographicLib_LIBRARY}")
+  message(STATUS "GTSAM_HAVE_GEOGRAPHICLIB: ${GTSAM_HAVE_GEOGRAPHICLIB}")
 else()
   message(STATUS "GeographicLib not found; Relevant tests disabled.")
 endif()