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Add IPO override cmake option

This commit is contained in:
Tom Lankhorst 2019-01-27 13:10:56 +01:00
parent 87d9932792
commit 0789ef541d
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GPG Key ID: 52BF82B885592251
1 changed files with 8 additions and 2 deletions
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10
cmake/ipo.cmake
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@ -1,5 +1,7 @@
# Helpers for inter-procedural optimizations (IPO)
option(DISABLE_IPO "Disable IPO in supported release builds." OFF)
# Enabled IPO for a LIST of CMake build types.
# Provides IPO_BUILD_ENABLED to the parent scope.
function(ipo_enable IPO_ENABLED_BUILDS)
@ -8,8 +10,12 @@ function(ipo_enable IPO_ENABLED_BUILDS)
set(IPO_BUILD_ENABLED OFF PARENT_SCOPE)
if(IPO_SUPPORTED AND ${CMAKE_BUILD_TYPE} IN_LIST IPO_ENABLED_BUILDS)
message(STATUS "IPO supported and enabled in ${CMAKE_BUILD_TYPE}.")
set(IPO_BUILD_ENABLED ON PARENT_SCOPE)
if(NOT DISABLE_IPO)
message(STATUS "IPO supported and enabled in ${CMAKE_BUILD_TYPE}.")
set(IPO_BUILD_ENABLED ON PARENT_SCOPE)
else()
message(STATUS "IPO explicitly disabled.")
endif()
elseif(NOT IPO_SUPPORTED AND ${CMAKE_BUILD_TYPE} IN_LIST IPO_ENABLED_BUILDS)
message(STATUS "IPO not supported: ${IPO_LOG}.")
endif()