BUG: Better logic to determine if GHCFileSystem is needed on macOS

Signed-off-by: Michael Jackson <mike.jackson@bluequartz.net>
BlueQuartzSoftware · Apr 26, 2023 · dc41bff · dc41bff
1 parent 757b590
commit dc41bff
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -108,9 +108,11 @@ if(APPLE)
   endif()
   message(STATUS "EbsdLib: DARWIN_VERSION ${DARWIN_VERSION}")
   message(STATUS "EbsdLib: CMAKE_OSX_DEPLOYMENT_TARGET: ${CMAKE_OSX_DEPLOYMENT_TARGET}")
-  if(CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS 10.15)
-    message(STATUS "EbsdLib: CMAKE_OSX_DEPLOYMENT_TARGET less than 10.15. Enabling EbsdLib_USE_GHC_FILESYSTEM")
-    set(EbsdLib_USE_GHC_FILESYSTEM ON)
+  if(NOT "${CMAKE_OSX_DEPLOYMENT_TARGET}" STREQUAL "" )
+    if(CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS 10.15)
+      message(STATUS "EbsdLib: CMAKE_OSX_DEPLOYMENT_TARGET less than 10.15. Enabling EbsdLib_USE_GHC_FILESYSTEM")
+      set(EbsdLib_USE_GHC_FILESYSTEM ON)
+    endif()
   endif()
 endif()
 if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux" AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0)