[Bugfix][Build] Fix building with LLVM-10 on macOS (apache#5859)

trevor-m · Jun 30, 2020 · d284ba2 · d284ba2
1 parent b8881fe
commit d284ba2
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/cmake/util/FindLLVM.cmake b/cmake/util/FindLLVM.cmake
@@ -34,7 +34,16 @@ macro(find_llvm use_llvm)
   set(LLVM_CONFIG ${use_llvm})
   if(LLVM_CONFIG STREQUAL "ON")
     find_package(LLVM REQUIRED CONFIG)
-    llvm_map_components_to_libnames(LLVM_LIBS all)
+    llvm_map_components_to_libnames(LLVM_LIBS "all")
+    if (NOT LLVM_LIBS)
+      message(STATUS "Not found - LLVM_LIBS")
+      message(STATUS "Fall back to using llvm-config")
+      set(LLVM_CONFIG "llvm-config")
+    else()
+      set(LLVM_CONFIG "ON")
+    endif()
+  endif()
+  if(LLVM_CONFIG STREQUAL "ON")
     list (FIND LLVM_LIBS "LLVM" _llvm_dynlib_index)
     if (${_llvm_dynlib_index} GREATER -1)
       set(LLVM_LIBS LLVM)