+dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
+dnl --------------
+dnl Allow user to disable a normally-on option.
+AC_DEFUN([CF_ARG_DISABLE],
+[CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ARG_OPTION version: 3 updated: 1997/10/18 14:42:41
+dnl -------------
+dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
+dnl values.
+dnl
+dnl Parameters:
+dnl $1 = option name
+dnl $2 = help-string
+dnl $3 = action to perform if option is not default
+dnl $4 = action if perform if option is default
+dnl $5 = default option value (either 'yes' or 'no')
+AC_DEFUN([CF_ARG_OPTION],
+[AC_ARG_ENABLE($1,[$2],[test "$enableval" != ifelse($5,no,yes,no) && enableval=ifelse($5,no,no,yes)
+ if test "$enableval" != "$5" ; then
+ifelse($3,,[ :]dnl
+,[ $3]) ifelse($4,,,[
+ else
+ $4])
+ fi],[enableval=$5 ifelse($4,,,[
+ $4
+])dnl
+ ])])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_AR_FLAGS version: 4 updated: 2009/02/07 13:42:23
+dnl -----------
+dnl Check for suitable "ar" (archiver) options for updating an archive.
+AC_DEFUN([CF_AR_FLAGS],[
+AC_REQUIRE([CF_PROG_AR])
+
+AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
+ cf_cv_ar_flags=unknown
+ for cf_ar_flags in -curv curv -crv crv -cqv cqv -rv rv
+ do
+ rm -f conftest.$ac_cv_objext
+ rm -f conftest.a
+
+ cat >conftest.$ac_ext <<EOF
+#line __oline__ "configure"
+int testdata[[3]] = { 123, 456, 789 };
+EOF
+ if AC_TRY_EVAL(ac_compile) ; then
+ $AR $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
+ if test -f conftest.a ; then
+ cf_cv_ar_flags=$cf_ar_flags
+ break
+ fi
+ else
+ CF_VERBOSE(cannot compile test-program)
+ break
+ fi
+ done
+ rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
+])
+test -z "$ARFLAGS" && ARFLAGS=$cf_cv_ar_flags
+AC_SUBST(ARFLAGS,$cf_cv_ar_flags)
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_AWK_BIG_PRINTF version: 3 updated: 2008/12/27 12:30:03