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+dnl This file is part of GNU mailutils.
+dnl Copyright (C) 2001, 2004, 2007 Free Software Foundation, Inc.
+dnl
+dnl This program is free software; you can redistribute it and/or modify it
+dnl under the terms of the GNU General Public License as published by the
+dnl Free Software Foundation; either version 3 of the License, or (at your
+dnl option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License along
+dnl with this program. If not, see <http://www.gnu.org/licenses/>.
+dnl
+
+dnl MU_RESULT_ACTIONS -- generate shell code for the result of a test
+dnl $1 -- CVAR -- cache variable to check
+dnl $2 -- NAME -- if not empty, used to generate a default value TRUE:
+dnl `AC_DEFINE(HAVE_NAME)'
+dnl $2 -- TRUE -- what to do if the CVAR is not `no'
+dnl $3 -- FALSE -- what to do otherwise; defaults to `:'
+dnl
+AC_DEFUN([MU_RESULT_ACTIONS], [
+[if test "$$1" != "" -a "$$1" != no; then
+ ]ifelse([$3], ,
+ [AC_DEFINE(HAVE_]translit($2, [a-z ./<>], [A-Z___])[,1,[FIXME])],
+ [$3])[
+else
+ ]ifelse([$4], , [:], [$4])[
+fi]])dnl
+
+AC_DEFUN([MU_CHECK_GUILE],
+[
+ if test "x$mu_cv_lib_guile" = x; then
+ cached=""
+ AC_PATH_PROG(GUILE_CONFIG, guile-config, no, $PATH)
+ if test $GUILE_CONFIG = no; then
+ mu_cv_lib_guile=no
+ else
+ GUILE_INCLUDES=`guile-config compile`
+ GUILE_LIBS=`guile-config link`
+ fi
+
+ if test $GUILE_CONFIG != no; then
+ AC_MSG_CHECKING(for guile version 1.6 or higher)
+ GUILE_VERSION=`($GUILE_CONFIG --version 2>&1; echo '')|sed -n 's/guile-config - Guile version \([[0-9]][[0-9]]*\)\.\([[0-9]][[0-9]]*\).*/\1\2/p'`
+ case "x$GUILE_VERSION" in
+ x[[0-9]]*)
+ if test $GUILE_VERSION -lt 18; then
+ AC_MSG_RESULT(Nope. Version number too low.)
+ mu_cv_lib_guile=no
+ else
+ AC_DEFINE_UNQUOTED(GUILE_VERSION, $GUILE_VERSION,
+ [Guile version number: MAX*10 + MIN])
+ AC_MSG_RESULT(OK)
+ save_LIBS=$LIBS
+ save_CFLAGS=$CFLAGS
+ LIBS="$LIBS $GUILE_LIBS"
+ CFLAGS="$CFLAGS $GUILE_INCLUDES"
+ AC_TRY_LINK([#include <libguile.h>],
+ ifelse([$1], , scm_shell(0, NULL);, [$1]),
+ [mu_cv_lib_guile=yes],
+ [mu_cv_lib_guile=no])
+ LIBS=$save_LIBS
+ CFLAGS=$save_CFLAGS
+ fi ;;
+ *) AC_MSG_RESULT(Nope. Unknown version number)
+ mu_cv_lib_guile=no;;
+ esac
+ fi
+ else
+ cached=" (cached) "
+ GUILE_INCLUDES=`$GUILE_CONFIG compile`
+ GUILE_LIBS=`$GUILE_CONFIG link`
+ fi
+ AC_MSG_CHECKING(whether to build guile support)
+ MU_RESULT_ACTIONS([mu_cv_lib_guile],[LIBGUILE],[$2],[$3])
+ AC_MSG_RESULT(${cached}$mu_cv_lib_guile)
+
+ if test $mu_cv_lib_guile = yes; then
+ AC_ARG_WITH([guiledir],
+ AC_HELP_STRING([--with-guiledir=DIR],
+ [Specify the directory to install guile modules to]),
+ [case $withval in
+ /*) GUILE_SITE=$withval;;
+ yes) GUILE_SITE=`$GUILE_CONFIG info pkgdatadir`/site;;
+ *) AC_MSG_ERROR([Argument to --with-guiledir must be an absolute directory name]);;
+ esac],
+ [GUILE_SITE=`$GUILE_CONFIG info pkgdatadir`/site
+ pfx=$prefix
+ test "x$pfx" = xNONE && pfx=$ac_default_prefix
+ case $GUILE_SITE in
+ $pfx/*) ;; # OK
+ *) AC_MSG_WARN([guile site directory "$GUILE_SITE" lies outside your current prefix ($pfx).])
+ GUILE_SITE='$(datadir)/guile/site'
+ AC_MSG_WARN([Falling back to ${GUILE_SITE} instead. Use --with-guiledir to force using site directory.])
+ ;;
+ esac])
+ fi
+
+ AC_SUBST(GUILE_SITE)
+ AC_SUBST(GUILE_INCLUDES)
+ AC_SUBST(GUILE_LIBS)
+])
+
+
+

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