@node signal.h
@section @file{signal.h}
-POSIX specification: @url{http://www.opengroup.org/susv3xbd/signal.h.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html}
-Gnulib module: signal
+Gnulib module: signal-h
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 missing on some platforms:
+MSVC 9.
+@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.
+mingw, MSVC 9.
@item
@code{struct sigaction} lacks the @code{sa_sigaction} member on some
platforms:
Irix 5.3, Interix 3.5.
@item
+The type @code{pid_t} is not defined on some platforms:
+MSVC 9.
+@item
The signal @code{SIGPIPE} is not defined on some platforms:
-mingw.
+mingw, MSVC 9.
@item
The macro @code{SA_NODEFER} is not defined on some platforms:
Interix 3.5.
+@item
+The macros @code{SA_RESETHAND} and @code{SA_RESTART} are not defined
+on some platforms:
+NonStop.
+@item
+The type @code{sighandler_t} (a GNU extension) is not defined on most non-glibc
+platforms:
+Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, AIX 5.1, HP-UX 11,
+IRIX 6.5, OSF/1 5.1, Solaris 11 2011-11, Cygwin, mingw, MSVC 9, Interix 3.5, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
Many signals are not defined on some platforms:
-mingw.
+mingw, MSVC 9.
+@item
+The macros @code{SIGRTMIN} and @code{SIGRTMAX} expand to an expression of type
+@code{long} instead of @code{int} on some platforms:
+OSF/1 5.1.
+@item
+The macro @code{SIGBUS} is set to the same value as @code{SIGSEGV},
+rather than being a distinct signal, on some platforms:
+Haiku.
@end itemize