@node signal.h
@section @file{signal.h}

POSIX specification: @url{http://www.opengroup.org/susv3xbd/signal.h.html}

Gnulib module: signal

Portability problems fixed by Gnulib:
@itemize
@item
@code{volatile sig_atomic_t} is rejected by older compilers on some
platforms:
AIX.
@item
@code{sigset_t} is only declared in <sys/types.h> on some platforms:
mingw.
@item
@code{struct sigaction} and @code{siginfo_t} are missing on some
platforms:
mingw.
@item
@code{struct sigaction} lacks the @code{sa_sigaction} member on some
platforms:
Irix 5.3, Interix 3.5.
@item
The signal @code{SIGPIPE} is not defined on some platforms:
mingw.
@item
The macro @code{SA_NODEFER} is not defined on some platforms:
Interix 3.5.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
Many signals are not defined on some platforms:
mingw.
@end itemize