Compilation on M1 mac

[jonaustin]

Just to note this solution somewhere in case someone else runs into it:

I was unable to compile the golang tool pistol on an M1 mac because homebrew installs files to /opt/homebrew/include† and /usr/local/include simply doesn't exist.
† or whatever your brew --prefix is set to.

❯ go install github.com/doronbehar/pistol/cmd/pistol@latest
# github.com/doronbehar/magicmime
Users/jonaustin/opt/_go/pkg/mod/github.com/doronbehar/magicmime@v0.1.1-0.20211127135329-3de4ff29dc49/magicmime.go:28:11: fatal error: 'magic.h' file not found
 #include <magic.h>
          ^~~~~~~~~
1 error generated.

Was able to fix this by simply symlinking things:

sudo ln -s /opt/homebrew/include /usr/local

[fowlie]

Had the same issue. The symlink workaround didn't fix it for me, but after creating it I at least got a different error:

$ go install github.com/doronbehar/pistol/cmd/pistol@latest
# github.com/doronbehar/pistol/cmd/pistol
/opt/homebrew/Cellar/go/1.20.4/libexec/pkg/tool/darwin_arm64/link: running cc failed: exit status 1
ld: library not found for -lmagic
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Actually, pasting that error into ChatGPT, it was suggested to set these environment variables:

export CGO_CFLAGS="-I/opt/homebrew/include"
export CGO_LDFLAGS="-L/opt/homebrew/lib"

Then I was finally able to install it.