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build: turn TARGET_ARCHITECTURE into option

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Default value is autodetected if not specified by user.
This commit is contained in:
Ilya Tumaykin 2018-01-21 17:07:27 +03:00 committed by Jehan
parent 95872ef41c
commit f136d434f0
1 changed files with 5 additions and 1 deletions
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6
CMakeLists.txt
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@ -32,12 +32,16 @@ include(GNUInstallDirs)
option(BUILD_BINARY "Build the CLI tool." ON)
option(BUILD_SHARED_LIBS "Build shared library and link executable to it." ON)
option(CHECK_SSE2 "Check and enable SSE2 extensions if supported. Disabling SSE on platforms which support it may decrease performances." ON)
set(TARGET_ARCHITECTURE "" CACHE STRING "Target CPU architecture. It is autodetected if not specified.")
if (BUILD_SHARED_LIBS)
option(BUILD_STATIC "Build static library" ON)
endif (BUILD_SHARED_LIBS)
string(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} TARGET_ARCHITECTURE)
if (TARGET_ARCHITECTURE STREQUAL "")
string(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} TARGET_ARCHITECTURE)
endif (TARGET_ARCHITECTURE STREQUAL "")
if (TARGET_ARCHITECTURE MATCHES ".*(x86)|(amd).*")
CHECK_C_COMPILER_FLAG(-msse2 SUPPORTS_CFLAG_SSE2)
CHECK_C_COMPILER_FLAG(-mfpmath=sse SUPPORTS_CFLAG_SSE_MATH)