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* configure.in: Added test if readline clears SA_RESTART flag for

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SIGWINCH.  (Thanks to Dale P. Smith.)
This commit is contained in:
Mikael Djurfeldt 2000-06-19 00:42:30 +00:00
parent a0adfbf022
commit 49a2970b4a
1 changed files with 40 additions and 1 deletions
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41
guile-readline/configure.in
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@ -18,7 +18,46 @@ if test $ac_cv_lib_readline_main = no; then
AC_MSG_WARN([libreadline was not found on your system.]) AC_MSG_WARN([libreadline was not found on your system.])
fi fi
AC_CHECK_FUNCS(rl_clear_signals rl_cleanup_after_signal) AC_CHECK_FUNCS(rl_clear_signals rl_cleanup_after_signal rl_pre_input_hook)
AC_MSG_CHECKING(if readline clears SA_RESTART flag for SIGWINCH)
AC_CACHE_VAL(guile_cv_sigwinch_sa_restart_cleared,
AC_TRY_RUN([#include <signal.h>
#include <stdio.h>
#include <readline/readline.h>
int
hook ()
{
struct sigaction action;
sigaction (SIGWINCH, NULL, &action);
rl_cleanup_after_signal();
/* exit with 0 if readline disabled SA_RESTART */
exit (action.sa_flags & SA_RESTART);
}
int
main ()
{
struct sigaction action;
sigaction (SIGWINCH, NULL, &action);
action.sa_flags |= SA_RESTART;
sigaction (SIGWINCH, &action, NULL);
rl_pre_input_hook = hook;
readline ("");
}],
guile_cv_sigwinch_sa_restart_cleared=yes,
guile_cv_sigwinch_sa_restart_cleared=no,
guile_cv_sigwinch_sa_restart_cleared=yes))
AC_MSG_RESULT($guile_cv_sigwinch_sa_restart_cleared)
if test $guile_cv_sigwinch_sa_restart_cleared = yes; then
AC_DEFINE(GUILE_SIGWINCH_SA_RESTART_CLEARED)
fi
AC_CACHE_CHECK([for rl_getc_function pointer in readline], AC_CACHE_CHECK([for rl_getc_function pointer in readline],
ac_cv_var_rl_getc_function, ac_cv_var_rl_getc_function,