2 @section @code{makecontext}
5 POSIX specification: @url{https://pubs.opengroup.org/onlinepubs/009695399/functions/makecontext.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
17 OpenBSD 6.7, Cygwin 1.7.x, mingw, MSVC 14, Android 9.0.