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AC_PREREQ(2.50)
dnl Don't use "echo -n", which is not portable (e.g., not available on
dnl MacOS X). Instead, use `patsubst' to remove the newline.
AC_INIT(guile-readline,
patsubst(m4_esyscmd(. ../GUILE-VERSION && echo ${GUILE_VERSION}), [
]),
[bug-guile@gnu.org])
AC_CONFIG_AUX_DIR([../build-aux])
AC_CONFIG_SRCDIR(readline.c)
AM_CONFIG_HEADER([guile-readline-config.h])
AM_INIT_AUTOMAKE([foreign no-define])
. $srcdir/../GUILE-VERSION
AC_PROG_INSTALL
AC_PROG_CC
AM_PROG_CC_STDC
AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
dnl
dnl Check for Winsock and other functionality on Win32 (*not* CygWin)
dnl
AC_CYGWIN
AC_MINGW32
EXTRA_DEFS=""
if test "$MINGW32" = "yes" ; then
if test $enable_shared = yes ; then
EXTRA_DEFS="-DSCM_IMPORT"
fi
fi
AC_SUBST(EXTRA_DEFS)
for termlib in ncurses curses termcap terminfo termlib ; do
AC_CHECK_LIB(${termlib}, tgoto,
[LIBS="-l${termlib} $LIBS"; break])
done
AC_LIB_LINKFLAGS(readline)
AC_CHECK_LIB(readline, readline)
if test $ac_cv_lib_readline_readline = no; then
AC_MSG_WARN([libreadline was not found on your system.])
fi
AC_CHECK_FUNCS(siginterrupt rl_clear_signals rl_cleanup_after_signal)
dnl Check for modern readline naming
AC_CHECK_FUNCS(rl_filename_completion_function)
dnl Check for rl_get_keymap. We only use this for deciding whether to
dnl install paren matching on the Guile command line (when using
dnl readline for input), so it's completely optional.
AC_CHECK_FUNCS(rl_get_keymap)
dnl Check for rl_pre_input_hook. This is more complicated because on
dnl some systems (HP/UX), the linker wont let us treat
dnl rl_pre_input_hook as a function when it really is a function
dnl pointer.
AC_MSG_CHECKING([for rl_pre_input_hook])
AC_CACHE_VAL(ac_cv_var_rl_pre_input_hook,
[AC_TRY_LINK([
#include <stdio.h>
#include <readline/readline.h>
], [
rl_pre_input_hook = 0;
],
ac_cv_var_rl_pre_input_hook=yes,
ac_cv_var_rl_pre_input_hook=no)])
AC_MSG_RESULT($ac_cv_var_rl_pre_input_hook)
if test $ac_cv_var_rl_pre_input_hook = yes; then
AC_DEFINE(HAVE_RL_PRE_INPUT_HOOK,1,
[Define if rl_pre_input_hook is available.])
fi
AC_MSG_CHECKING(if readline clears SA_RESTART flag for SIGWINCH)
AC_CACHE_VAL(guile_cv_sigwinch_sa_restart_cleared,
AC_TRY_RUN([#include <signal.h>
#include <stdio.h>
#include <readline/readline.h>
int
hook ()
{
struct sigaction action;
sigaction (SIGWINCH, NULL, &action);
rl_cleanup_after_signal();
/* exit with 0 if readline disabled SA_RESTART */
exit (action.sa_flags & SA_RESTART);
}
int
main ()
{
struct sigaction action;
sigaction (SIGWINCH, NULL, &action);
action.sa_flags |= SA_RESTART;
sigaction (SIGWINCH, &action, NULL);
/* Give readline something to read. Otherwise, it might hang, for
example when run as a background process with job control.
*/
rl_instream = fopen ("/dev/null", "r");
if (rl_instream == NULL)
{
perror ("/dev/null");
exit (1);
}
rl_pre_input_hook = hook;
readline ("");
}],
guile_cv_sigwinch_sa_restart_cleared=yes,
guile_cv_sigwinch_sa_restart_cleared=no,
guile_cv_sigwinch_sa_restart_cleared=yes))
AC_MSG_RESULT($guile_cv_sigwinch_sa_restart_cleared)
if test $guile_cv_sigwinch_sa_restart_cleared = yes; then
AC_DEFINE(GUILE_SIGWINCH_SA_RESTART_CLEARED, 1,
[Define if readline disables SA_RESTART.])
fi
AC_CACHE_CHECK([for rl_getc_function pointer in readline],
ac_cv_var_rl_getc_function,
[AC_TRY_LINK([
#include <stdio.h>
#include <readline/readline.h>],
[printf ("%ld", (long) rl_getc_function)],
[ac_cv_var_rl_getc_function=yes],
[ac_cv_var_rl_getc_function=no])])
if test "${ac_cv_var_rl_getc_function}" = "yes"; then
AC_DEFINE(HAVE_RL_GETC_FUNCTION, 1,
[Define if your readline library has the rl_getc_function variable.])
fi
if test $ac_cv_lib_readline_readline = yes \
-a $ac_cv_var_rl_getc_function = no; then
AC_MSG_WARN([*** libreadline is too old on your system.])
AC_MSG_WARN([*** You need readline version 2.1 or later.])
fi
AC_CHECK_FUNCS(strdup)
. $srcdir/LIBGUILEREADLINE-VERSION
AC_SUBST(LIBGUILEREADLINE_MAJOR)
AC_SUBST(LIBGUILEREADLINE_INTERFACE_CURRENT)
AC_SUBST(LIBGUILEREADLINE_INTERFACE_REVISION)
AC_SUBST(LIBGUILEREADLINE_INTERFACE_AGE)
AC_SUBST(LIBGUILEREADLINE_INTERFACE)
AC_SUBST(GUILE_EFFECTIVE_VERSION)
AC_CONFIG_FILES(Makefile ice-9/Makefile)
AC_OUTPUT
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