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12.3 alloca.h

Declares the alloca function of function-like macro.

Documentation:

• https://www.gnu.org/software/libc/manual/html_node/Variable-Size-Automatic.html,
• man alloca.

Gnulib module: alloca

Portability problems fixed by Gnulib:

• This header file is missing on some platforms: FreeBSD 6.0, NetBSD 9.0, OpenBSD 6.7, mingw, MSVC 14.

Portability problems not fixed by Gnulib: