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[cmake] Treat polly as "in tree" if LLVM_EXTERNAL_POLLY_SOURCE_DIR is provided 

Differential Revision: https://reviews.llvm.org/D25354

llvm-svn: 283608
This commit is contained in:
Hongbin Zheng 2016-10-07 21:32:47 +00:00
parent 563d7e8a39
commit 78550e3991
1 changed files with 2 additions and 0 deletions
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2
llvm/CMakeLists.txt
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@ -395,6 +395,8 @@ option(LLVM_POLLY_BUILD "Build LLVM with Polly" ON)
if (EXISTS ${LLVM_MAIN_SRC_DIR}/tools/polly/CMakeLists.txt)
set(POLLY_IN_TREE TRUE)
elseif(LLVM_EXTERNAL_POLLY_SOURCE_DIR)
set(POLLY_IN_TREE TRUE)
else()
set(POLLY_IN_TREE FALSE)
endif()