Build with optimization flags

alcoan
1

I would like to build opencv4 with the following optimization flags:

-march=native -O3 -flto

What is the right way to specify those flags?

1 answer

156 ●1 ●4

You can add -march=native -O3 to CMAKE_CXX_FLAGS (or to CMAKE_CXX_FLAGS_config where config is RELEASE, DEBUG, etc).

You can enable LTO by setting ENABLE_LTO build option.

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Asked: 2019-04-19 05:59:50 -0600

Seen: 1,041 times

Last updated: Jun 23 '19