Texinfo would not compile with the native C compiler.
There is an assumption in info/signals.c as to the layout of struct sigaction
which is non-portable.
Under Irix, a struct sigaction is defined as:
typedef union __sighandler {
__sigret_t (*sa_handler1)(__sigargs); /* SIG_DFL, SIG_IGN, or *fn */
#if _POSIX93 || _XOPEN4UX
void (*sa_sigaction1)(int, siginfo_t *, void *);
#endif
} __sighandler_t;
#if _SGIAPI
#define __sa_handler sa_handler1
#define __sa_sigaction sa_sigaction1
#endif
typedef struct sigaction {
int sa_flags; /* see below for values */
__sighandler_t sa_sighandler; /* function to handle signal */
sigset_t sa_mask; /* additional set of sigs to be */
/* blocked during handler execution */
int sa_resv[2];
} sigaction_t;
#define sa_handler sa_sighandler.sa_handler1
#define sa_sigaction sa_sighandler.sa_sigaction1
The code info/signals.c assumes that the handler is the first element
of the structure.
My fix: Initialize the structure explicity in initialize_info_signal_hander().
Ezra
*** signals.c 2003/01/28 17:51:26 1.1
--- signals.c 2003/01/28 18:00:40
***************
*** 87,97 ****
static RETSIGTYPE info_signal_proc ();
#if defined (HAVE_SIGACTION)
typedef struct sigaction signal_info;
! signal_info info_signal_handler = {
! info_signal_proc,
! 0, /* set later */
! 0
! };
static void
set_termsig (sig, old)
--- 87,93 ----
static RETSIGTYPE info_signal_proc ();
#if defined (HAVE_SIGACTION)
typedef struct sigaction signal_info;
! signal_info info_signal_handler;
static void
set_termsig (sig, old)
***************
*** 123,128 ****
--- 119,126 ----
initialize_info_signal_handler ()
{
#if defined (HAVE_SIGACTION)
+ info_signal_handler.sa_handler = info_signal_proc;
+ info_signal_handler.sa_flags = 0;
mask_termsig (&info_signal_handler.sa_mask);
#endif /* HAVE_SIGACTION */
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