Add CMake option to provide custom libstdc++ on macOS (#1344)

2019-07-20 11:21:44 -04:00 · 2019-07-20 11:21:44 -04:00 · ea0105fa66
parent 49f3de979f
commit ea0105fa66
1 changed files with 5 additions and 3 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -296,6 +296,7 @@ if(WIN32)
  endif()
 endif()

+option(EXTERNAL_LIBSTDCXX "macOS only: Avoid installing the DFHack-provided libstdc++." OFF)
 if(APPLE)
  # libstdc++ (GCC 4.8.5 for OS X 10.6)
  # fixes crash-on-unwind bug in DF's libstdc++
@ -346,9 +347,10 @@ if(APPLE)
    endif()
  endif()

-  install(PROGRAMS ${LIBSTDCXX_DOWNLOAD_DIR}/libstdc++.6.dylib
-    DESTINATION ./hack/)
-
+  if(NOT EXTERNAL_LIBSTDCXX)
+    install(PROGRAMS ${LIBSTDCXX_DOWNLOAD_DIR}/libstdc++.6.dylib
+      DESTINATION ./hack/)
+  endif()
 endif()

 #### expose depends ####