[PATCH] D80492: Avoid linking libdl unless needed

[Tobias Hieta via Phabricator via cfe-commits]

thieta created this revision.
thieta added a reviewer: mstorsjo.
thieta added a project: clang.
Herald added subscribers: cfe-commits, mgorny.

This fixes cross-compilation when targeting a platform not using libdl and 
mirrors libdl linking in other parts of the code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D80492

Files:
  clang/tools/libclang/CMakeLists.txt


Index: clang/tools/libclang/CMakeLists.txt
===================================================================
--- clang/tools/libclang/CMakeLists.txt
+++ clang/tools/libclang/CMakeLists.txt
@@ -66,9 +66,8 @@
   endif ()
 endif ()
 
-find_library(DL_LIBRARY_PATH dl)
-if (DL_LIBRARY_PATH)
-  list(APPEND LIBS dl)
+if (HAVE_LIBDL)
+  list(APPEND LIBS ${CMAKE_DL_LIBS})
 endif()
 
 option(LIBCLANG_BUILD_STATIC



Index: clang/tools/libclang/CMakeLists.txt
===================================================================
--- clang/tools/libclang/CMakeLists.txt
+++ clang/tools/libclang/CMakeLists.txt
@@ -66,9 +66,8 @@
   endif ()
 endif ()
 
-find_library(DL_LIBRARY_PATH dl)
-if (DL_LIBRARY_PATH)
-  list(APPEND LIBS dl)
+if (HAVE_LIBDL)
+  list(APPEND LIBS ${CMAKE_DL_LIBS})
 endif()
 
 option(LIBCLANG_BUILD_STATIC

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