@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
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
@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:
@item
Many signals are not defined on some platforms:
mingw.
+@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.
@end itemize