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README: tell macOS users to use brew clang with LTO

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Emil J 2024-10-22 12:45:06 +02:00
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README.md
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@ -130,9 +130,15 @@ lld by enabling LTO:
$ make ENABLE_LTO=1 $ make ENABLE_LTO=1
On macOS, LTO requires using clang from homebrew which isn't in PATH
rather than xcode clang.
$ make ENABLE_LTO=1 CXX=$(brew --prefix)/opt/llvm/bin/clang++
For other compilers and build configurations it might be For other compilers and build configurations it might be
necessary to make some changes to the config section of the necessary to make some changes to the config section of the
Makefile. Makefile. It's also an alternative way to set the make variables
mentioned above.
$ vi Makefile # ..or.. $ vi Makefile # ..or..
$ vi Makefile.conf $ vi Makefile.conf