kc3-lang/gnulib/doc/posix-headers/signal.texi

• Show log

  Commit

• Hash : fa6f0000
  Author :
  Date : 2011-05-05T19:03:57
  

  signal: Define sighandler_t.
  
  * lib/signal.in.h (sighandler_t): New type.
  * m4/signal_h.m4 (gl_SIGNAL_H): Require AC_USE_SYSTEM_EXTENSIONS. Test
  whether sighandler_t is defined.
  (gl_SIGNAL_H_DEFAULTS): Initialize HAVE_SIGHANDLER_T.
  * modules/signal (Depends-on): Add extensions.
  (Makefile.am): Substitute HAVE_SIGHANDLER_T.
  * doc/posix-headers/signal.texi: Mention the problem with sighandler_t.
  Suggested by Markus Steinborn <gnugv_maintainer@yahoo.de>.
  

Download

• doc/posix-headers/signal.texi

• @node signal.h
  @section @file{signal.h}
  
  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
  @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.
  @item
  The type @code{sighandler_t} (a GNU extension) is not defined on most non-glibc
  platforms:
  MacOS 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 2010-11, Cygwin, mingw, Interix 3.5, BeOS.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @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.
  @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
  

Download