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Tell people to use Clang instead of GCC on MinGW

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Pauli Oikkonen 2020-04-08 20:09:12 +03:00
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README.md
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@ -22,6 +22,7 @@ http://ultravideo.cs.tut.fi/#encoder for more information.
- [Compiling Kvazaar](#compiling-kvazaar)
- [Required libraries](#required-libraries)
- [Autotools](#autotools)
- [Autotools on MinGW](#autotools-on-mingw)
- [OS X](#os-x)
- [Visual Studio](#visual-studio)
- [Docker](#docker)
@ -393,6 +394,12 @@ Run the following commands to compile and install Kvazaar.
See `./configure --help` for more options.
### Autotools on MinGW
It is recommended to use Clang instead of GCC in MinGW environments. GCC also works, but AVX2 optimizations will be disabled because of a known GCC issue from 2012, so performance will suffer badly. Instead of `./configure`, run
CC=clang ./configure
to build Kvazaar using Clang.
### OS X
- Install Homebrew