[CMake] Only generate Components.cmake if components are specified

Generating the Components import file is useless if there are no components coming in from the runtimes configuration, so we should skip generation in that case.

This also should fix the configuration error that Renato reported on llvm-dev.

llvm-svn: 279893
This commit is contained in:
Chris Bieneman 2016-08-27 00:19:51 +00:00
parent d27ef7bcd4
commit 4041f0c8c7

View File

@ -90,25 +90,27 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
endif()
get_property(SUB_COMPONENTS GLOBAL PROPERTY SUB_COMPONENTS)
list(REMOVE_DUPLICATES SUB_COMPONENTS)
foreach(component ${SUB_COMPONENTS})
if(NOT TARGET ${component})
message(SEND_ERROR "Missing target for runtime component ${component}!")
continue()
endif()
if(LLVM_INCLUDE_TESTS AND NOT TARGET check-${component})
message(SEND_ERROR "Missing check target for runtime component ${component}!")
continue()
endif()
if(SUB_COMPONENTS)
list(REMOVE_DUPLICATES SUB_COMPONENTS)
foreach(component ${SUB_COMPONENTS})
if(NOT TARGET ${component})
message(SEND_ERROR "Missing target for runtime component ${component}!")
continue()
endif()
if(LLVM_INCLUDE_TESTS AND NOT TARGET check-${component})
message(SEND_ERROR "Missing check target for runtime component ${component}!")
continue()
endif()
if(TARGET install-${component})
list(APPEND SUB_INSTALL_TARGETS install-${component})
endif()
endforeach()
if(TARGET install-${component})
list(APPEND SUB_INSTALL_TARGETS install-${component})
endif()
endforeach()
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/Components.cmake.in
${LLVM_BINARY_DIR}/runtimes/Components.cmake)
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/Components.cmake.in
${LLVM_BINARY_DIR}/runtimes/Components.cmake)
endif()
else() # if this is included from LLVM's CMake
include(${LLVM_BINARY_DIR}/runtimes/Components.cmake OPTIONAL)