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Adds Link Time Optimization cmake option. 

Adds a LTO option that isn't enabled by default.
Allows building release binaries with link time optimizations without generating a -dirty build.
Not enabled by default due to concerns of memory usage and increased build time.
This commit is contained in:
Ryan Houdek 2014-04-23 04:15:25 -05:00
parent c44df3d932
commit cc2dac6722
1 changed files with 5 additions and 0 deletions
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5
CMakeLists.txt
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@ -10,6 +10,7 @@ option(USE_WAYLAND "Enables Wayland Support" OFF)
option(USE_UPNP "Enables UPnP port mapping support" ON)
option(DISABLE_WX "Disable wxWidgets (use CLI interface)" OFF)
option(ENABLE_PCH "Use PCH to speed up compilation" ON)
option(ENABLE_LTO "Enables Link Time Optimization" OFF)
option(OPENMP "Enable OpenMP parallelization" ON)
option(ENCODE_FRAMEDUMPS "Encode framedumps in AVI format" ON)
@ -206,6 +207,10 @@ if(UNIX AND NOT APPLE)
check_and_add_flag(VISIBILITY_HIDDEN -fvisibility=hidden)
endif()
if(ENABLE_LTO)
check_and_add_flag(LTO -flto)
endif()
if(APPLE)
# Ignore MacPorts and Fink and any other locally installed packages that
# might prevent building a distributable binary.