[CMake] Work around to use target_link_libraries(PUBLIC) in BUILD_SHARED_LIBS mode.

[oota-llvm.git] / cmake / modules / AddLLVM.cmake

diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index a10262b14ef66d28ee4bb43e8e15d808b550d16b..a94c38629a857a23c04934686845faf9dce1a5de 100644 (file)
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -127,6 +127,10 @@ function(add_llvm_symbol_exports target_name export_file)
     PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})
 
   add_dependencies(${target_name} ${target_name}_exports)
+
+  # Add dependency to *_exports later -- CMake issue 14747
+  list(APPEND LLVM_COMMON_DEPENDS ${target_name}_exports)
+  set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
 endfunction(add_llvm_symbol_exports)
 
 function(add_dead_strip target_name)
@@ -224,6 +228,9 @@ function(llvm_add_library name)
     llvm_update_compile_flags(${obj_name})
     set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
 
+    # Do add_dependencies(obj) later due to CMake issue 14747.
+    list(APPEND objlibs ${obj_name})
+
     set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
   endif()
 
@@ -282,12 +289,54 @@ function(llvm_add_library name)
     endif()
   endif()
 
-  target_link_libraries(${name} ${ARG_LINK_LIBS})
+  # Add the explicit dependency information for this library.
+  #
+  # It would be nice to verify that we have the dependencies for this library
+  # name, but using get_property(... SET) doesn't suffice to determine if a
+  # property has been set to an empty value.
+  get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
+
+  llvm_map_components_to_libnames(llvm_libs
+    ${ARG_LINK_COMPONENTS}
+    ${LLVM_LINK_COMPONENTS}
+    )
 
-  llvm_config(${name} ${ARG_LINK_COMPONENTS} ${LLVM_LINK_COMPONENTS})
+  if(CMAKE_VERSION VERSION_LESS 2.8.12)
+    # Link libs w/o keywords, assuming PUBLIC.
+    target_link_libraries(${name}
+      ${ARG_LINK_LIBS}
+      ${lib_deps}
+      ${llvm_libs}
+      )
+  elseif(ARG_STATIC)
+    target_link_libraries(${name} INTERFACE
+      ${ARG_LINK_LIBS}
+      ${lib_deps}
+      ${llvm_libs}
+      )
+  elseif(ARG_SHARED AND BUILD_SHARED_LIBS)
+    # FIXME: It may be PRIVATE since SO knows its dependent libs.
+    target_link_libraries(${name} PUBLIC
+      ${ARG_LINK_LIBS}
+      ${lib_deps}
+      ${llvm_libs}
+      )
+  else()
+    # MODULE|SHARED
+    target_link_libraries(${name} PRIVATE
+      ${ARG_LINK_LIBS}
+      ${lib_deps}
+      ${llvm_libs}
+      )
+  endif()
 
   if(LLVM_COMMON_DEPENDS)
     add_dependencies(${name} ${LLVM_COMMON_DEPENDS})
+    # Add dependencies also to objlibs.
+    # CMake issue 14747 --  add_dependencies() might be ignored to objlib's user.
+    foreach(objlib ${objlibs})
+      add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
+    endforeach()
   endif()
 endfunction()
 
@@ -311,14 +360,6 @@ macro(add_llvm_library name)
     set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
   endif()
   set_target_properties(${name} PROPERTIES FOLDER "Libraries")
-
-  # Add the explicit dependency information for this library.
-  #
-  # It would be nice to verify that we have the dependencies for this library
-  # name, but using get_property(... SET) doesn't suffice to determine if a
-  # property has been set to an empty value.
-  get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
-  target_link_libraries(${name} ${lib_deps})
 endmacro(add_llvm_library name)
 
 macro(add_llvm_loadable_module name)