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

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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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279893 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Bieneman 2016-08-27 00:19:51 +00:00
parent fd6bad6c38
commit 4ec9567b37
1 changed files with 19 additions and 17 deletions
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36
runtimes/CMakeLists.txt
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@ -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)