[Bug c/83324] [feature request] Pragma or special syntax for guaranteed tail calls

[lucier at math dot purdue.edu via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83324

--- Comment #31 from lucier at math dot purdue.edu ---
Are there plans to support the __attribute__((musttail)) notation for C code?

It appears that with 

heine:~/programs/gambit/gambit> clang -v
Ubuntu clang version 14.0.0-1ubuntu1.1

one needs to pass something like -std=c2x on the command line to support
[[clang::musttail]], while this clang supports __attribute__((musttail)) "out
of the box", as it were.