mprotect
========

POSIX specification:
 http://www.opengroup.org/onlinepubs/9699919799/functions/mprotect.html

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: Minix 3.1.8, mingw, MSVC 9, BeOS.

  * This function does not set errno on some platforms: mingw.

  * On AIX, it is not possible to use mprotect on memory regions allocated with malloc.