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[CMake] NFC. Updating documentation on options

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The Ninja pool options are only supported with the Ninja generator and
should be called out as such.

llvm-svn: 344188
This commit is contained in:
Chris Bieneman 2018-10-10 21:36:12 +00:00
parent a97728489f
commit e17657a758
1 changed files with 2 additions and 2 deletions
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4
cmake/modules/HandleLLVMOptions.cmake
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@ -23,7 +23,7 @@ string(TOUPPER "${LLVM_ENABLE_LTO}" uppercase_LLVM_ENABLE_LTO)
# Ninja Job Pool support
# The following only works with the Ninja generator in CMake >= 3.0.
set(LLVM_PARALLEL_COMPILE_JOBS "" CACHE STRING
"Define the maximum number of concurrent compilation jobs.")
"Define the maximum number of concurrent compilation jobs (Ninja only).")
if(LLVM_PARALLEL_COMPILE_JOBS)
if(NOT CMAKE_MAKE_PROGRAM MATCHES "ninja")
message(WARNING "Job pooling is only available with Ninja generators.")
@ -34,7 +34,7 @@ if(LLVM_PARALLEL_COMPILE_JOBS)
endif()
set(LLVM_PARALLEL_LINK_JOBS "" CACHE STRING
"Define the maximum number of concurrent link jobs.")
"Define the maximum number of concurrent link jobs (Ninja only).")
if(CMAKE_MAKE_PROGRAM MATCHES "ninja")
if(NOT LLVM_PARALLEL_LINK_JOBS AND uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
message(STATUS "ThinLTO provides its own parallel linking - limiting parallel link jobs to 2.")