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[CMake] Add lto subdirectory explicitly.

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This is required because ExternalProject_Add requires all targets specified in the DEPENDS argument must exist before calling ExternalProject_Add.

I have a follow-up patch to clang that enables using the just-built libLTO in bootstrap builds, so we need to be able to add the LTO target as a dependency in clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247316 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Bieneman 2015-09-10 18:22:33 +00:00
parent ba662b351c
commit 24346ed19f
1 changed files with 4 additions and 0 deletions
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4
tools/CMakeLists.txt
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@ -30,6 +30,10 @@ if(CYGWIN OR NOT LLVM_ENABLE_PIC)
set(LLVM_TOOL_LLVM_LTO_BUILD Off)
endif()
# Add LTO before clang, ExternalProject requires targets specified in DEPENDS
# to exist before the call to ExternalProject_Add
add_llvm_tool_subdirectory(lto)
# Projects supported via LLVM_EXTERNAL_*_SOURCE_DIR need to be explicitly
# specified.
add_llvm_external_project(clang)