Eliminating compilation warnings when using lto in gcc12 and later versions#23991
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asmorkalov merged 1 commit intoopencv:4.xfrom Jul 18, 2023
Merged
Eliminating compilation warnings when using lto in gcc12 and later versions#23991asmorkalov merged 1 commit intoopencv:4.xfrom
asmorkalov merged 1 commit intoopencv:4.xfrom
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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>
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Does it work with Ninja generator? |
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Author
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yeah，I tested using ninja |
Contributor
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I can confirm the issue and the fix works for me with Ubuntu 22.04 and GCC-12 (apt repo). Command line to build: |
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If use -flto in gcc12.1, then will be warning appear.
Reference:
https://stackoverflow.com/questions/72218980/gcc-v12-1-warning-about-serial-compilation
https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html