secure_getenv
-------------

Documentation:

  * Environment Access (libc),

  * man secure_getenv.

Gnulib module: secure_getenv

Portability problems fixed by Gnulib:

  * This function is missing on many non-glibc platforms: glibc 2.16, OS X 10.8, FreeBSD 13.0, NetBSD 9.0, OpenBSD 5.2, Minix 3.2.0, AIX 7.1, HP-UX 11, IRIX 6.5, Solaris 11.3, Cygwin 2.9, mingw, MSVC 14, Android 9.0.

Portability problems not fixed by Gnulib: