fptrace fails to build on darwin

[patryk-kozak]

Describe the bug
nix_gazelle_extension is not runnable on darwin, the fptrace is not able to build

error: builder for '/nix/store/9djxkbvhldinlnwd8h061pyn0933dsi7-fptrace.drv' failed with exit code 2;
       last 10 log lines:
       > # command-line-arguments
       > ./seccomp.go:24:2: undefined: unix.SYS_DUP3
       > ./seccomp.go:26:2: undefined: unix.SYS_EXECVEAT
       > ./seccomp.go:34:2: undefined: unix.SYS_PREAD64
       > ./seccomp.go:35:2: undefined: unix.SYS_PREADV
       > ./seccomp.go:36:2: undefined: unix.SYS_PREADV2
       > ./seccomp.go:37:2: undefined: unix.SYS_PWRITE64
       > ./seccomp.go:38:2: undefined: unix.SYS_PWRITEV
       > ./seccomp.go:39:2: undefined: unix.SYS_PWRITEV2
       > ./seccomp.go:44:2: undefined: unix.SYS_RENAMEAT2
       For full logs, run 'nix log /nix/store/9djxkbvhldinlnwd8h061pyn0933dsi7-fptrace.drv'.

To Reproduce

• git clone repository to macos machine
• go to examples
• run examples:generate
• go to examples/vanilla
• run gazelle-update-all
• gazelle fails

Expected behavior
nix_gazelle_extension is able to run from macos.

Environment

• OS name + version: MacOS 12.4 Monterey / kernel 21.5.0
• Version of the code: master source code

Additional context

Notes:
https://opensource.apple.com/source/dtrace/dtrace-147/DTTk/dtruss.auto.html
Seems to be available to trace execution on macos, didn't tried it.
It is probably not option anymore, blocked by El Captation release.
There is ptrace (python strace port) that is runnable on unix, windows and darwin.
https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/ptrace.2.html
https://github.com/vstinner/python-ptrace

[aherrmann]

A potential cross-platform alternative may be fsatrace. It's also used by Rattle. However, wrt MacOS, it states

In order to use fsatrace on systems newer than OS X 10.10, System Integrity Protection must be disabled as detailed in https://developer.apple.com/library/content/documentation/Security/Conceptual/System_Integrity_Protection_Guide/ConfiguringSystemIntegrityProtection/ConfiguringSystemIntegrityProtection.html