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Eliminating compilation warnings when using lto in

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gcc12 and later versions

use -flto=auto when use gcc12 or later

Signed-off-by: 不鱼儿 <36976072+buyuer@users.noreply.github.com>
This commit is contained in:
不鱼儿 2023-07-14 08:45:14 +00:00
parent 7819ec784b
commit 4ee0f212cc
1 changed files with 5 additions and 1 deletions
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6
cmake/OpenCVCompilerOptions.cmake
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@ -261,7 +261,11 @@ if(CV_GCC OR CV_CLANG)
endif()
if(ENABLE_LTO)
add_extra_compiler_option(-flto)
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 12)
add_extra_compiler_option(-flto=auto)
else()
add_extra_compiler_option(-flto)
endif()
endif()
if(ENABLE_THIN_LTO)
add_extra_compiler_option(-flto=thin)