[llvm] [ocaml] Support linking against dylib

Support linking OCaml modules against LLVM dylib when requested,
rather than against static libs that might not be installed at all.

Differential Revision: https://reviews.llvm.org/D68452

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374556 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/AddOCaml.cmake b/cmake/modules/AddOCaml.cmake
index 02bab6846376bcf94699a940f5e3369f7f281954..554046b20edf1729b5611dd820fb84c4b33af2f4 100644 (file)
--- a/cmake/modules/AddOCaml.cmake
+++ b/cmake/modules/AddOCaml.cmake
@@ -66,21 +66,25 @@ function(add_ocaml_library name)
     list(APPEND ocaml_flags "-custom")
   endif()
 
-  explicit_map_components_to_libraries(llvm_libs ${ARG_LLVM})
-  foreach( llvm_lib ${llvm_libs} )
-    list(APPEND ocaml_flags "-l${llvm_lib}" )
-  endforeach()
+  if(LLVM_LINK_LLVM_DYLIB)
+    list(APPEND ocaml_flags "-lLLVM")
+  else()
+    explicit_map_components_to_libraries(llvm_libs ${ARG_LLVM})
+    foreach( llvm_lib ${llvm_libs} )
+      list(APPEND ocaml_flags "-l${llvm_lib}" )
+    endforeach()
 
-  get_property(system_libs TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS)
-  foreach(system_lib ${system_libs})
-    if (system_lib MATCHES "^-")
-      # If it's an option, pass it without changes.
-      list(APPEND ocaml_flags "${system_lib}" )
-    else()
-      # Otherwise assume it's a library name we need to link with.
-      list(APPEND ocaml_flags "-l${system_lib}" )
-    endif()
-  endforeach()
+    get_property(system_libs TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS)
+    foreach(system_lib ${system_libs})
+      if (system_lib MATCHES "^-")
+        # If it's an option, pass it without changes.
+        list(APPEND ocaml_flags "${system_lib}" )
+      else()
+        # Otherwise assume it's a library name we need to link with.
+        list(APPEND ocaml_flags "-l${system_lib}" )
+      endif()
+    endforeach()
+  endif()
 
   string(REPLACE ";" " " ARG_CFLAGS "${ARG_CFLAGS}")
   set(c_flags "${ARG_CFLAGS} ${LLVM_DEFINITIONS}")