Fix GeographicLib linking: use TARGET_LINK_LIBRARIES directly and add LINK_DIRECTORIES

- Changed from NGL_TARGET_LINK_LIBRARIES to TARGET_LINK_LIBRARIES for GeographicLib
- Added TARGET_LINK_DIRECTORIES to ensure linker finds the library
- Applied to LtsCoordTrans library, tools, and test executable

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt6-after/qt6-migrated-legatus/Lts/Common/LtsCoordTrans/CMakeLists.txt

@@ -23,10 +23,11 @@ NGL_TARGET_LINK_LIBRARIES(LtsCoordTrans
     Qt6::Core
 )
 if (GeographicLib_FOUND)
-  NGL_TARGET_LINK_LIBRARIES(LtsCoordTrans
+  TARGET_LINK_LIBRARIES(LtsCoordTrans
     PRIVATE ${GeographicLib_LIBRARIES}
   )
   TARGET_INCLUDE_DIRECTORIES(LtsCoordTrans PRIVATE ${GeographicLib_INCLUDE_DIRS})
+  TARGET_LINK_DIRECTORIES(LtsCoordTrans PRIVATE ${GeographicLib_LIBRARY_DIRS})
 else()
   message(STATUS "GeographicLib not found; building LtsCoordTrans without it")
 endif()
@@ -67,11 +68,12 @@ IF(TARGET LtsCoordTrans)
   SET(_tools lonlat2mgrs mgrs2lonlat)
   FOREACH(_tool ${_tools})
     NGL_ADD_EXECUTABLE(ALL ${_tool} ${_tool}.cpp)
-    NGL_TARGET_LINK_LIBRARIES(${_tool}
+    TARGET_LINK_LIBRARIES(${_tool}
       Qt6::Core
       ${GeographicLib_LIBRARIES}
     )
     TARGET_INCLUDE_DIRECTORIES(${_tool} PRIVATE ${GeographicLib_INCLUDE_DIRS})
+    TARGET_LINK_DIRECTORIES(${_tool} PRIVATE ${GeographicLib_LIBRARY_DIRS})
     NGL_INSTALL_TARGET(${_tool})
   ENDFOREACH()
 ENDIF()
@@ -95,5 +97,8 @@ IF(BUILD_TESTING AND TARGET LtsCoordTrans)
     ${GeographicLib_LIBRARIES}
   )
   TARGET_INCLUDE_DIRECTORIES(lts_coord_trans_unit_test PRIVATE ${GeographicLib_INCLUDE_DIRS})
+  if (GeographicLib_FOUND)
+    TARGET_LINK_DIRECTORIES(lts_coord_trans_unit_test PRIVATE ${GeographicLib_LIBRARY_DIRS})
+  endif()
   ADD_TEST(NAME lts_coord_trans_unit_test COMMAND $<TARGET_FILE:lts_coord_trans_unit_test>)
 ENDIF()