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Default to only building LLVM optimisations if the version of LLVM is tested.

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This commit is contained in:
theraven 2013-03-01 11:24:54 +00:00
parent dbe4ed41fa
commit 4b76f0134d
1 changed files with 17 additions and 2 deletions
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19
CMakeLists.txt
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@ -120,8 +120,23 @@ else ()
add_definitions(-DNO_LEGACY)
endif ()
find_package(LLVM)
set(LLVM_OPTS ${LLVM_FOUND} CACHE BOOL
find_package(LLVM QUIET)
set(DEFAULT_ENABLE_LLVM ${LLVM_FOUND})
if (DEFAULT_ENABLE_LLVM)
exec_program(llvm-config
ARGS --version
OUTPUT_VARIABLE LLVM_VER)
if (LLVM_VER MATCHES ".*svnn")
set(DEFAULT_ENABLE_LLVM FALSE)
message(STATUS "svn version of LLVM found.")
message(STATUS "Disabling LLVM options unless explicitly enabled.")
elseif (LLVM_VER VERSION_GREATER 3.2)
set(DEFAULT_ENABLE_LLVM FALSE)
message(STATUS "Untested version of LLVM (${LLVM_VER}) found.")
message(STATUS "Disabling LLVM options unless explicitly enabled.")
endif()
endif()
set(LLVM_OPTS ${DEFAULT_ENABLE_LLVM} CACHE BOOL
"Build LLVM Objective-C optimisations")
if (LLVM_OPTS)
add_subdirectory(opts)