-O0CFLAGS=`echo $CFLAGS | sed 's/-O[[0-9]] *//'`
-AC_SUBST([O0CFLAGS])
-O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`
-AC_SUBST([O0CXXFLAGS])
-
+AC_SUBST([O0CFLAGS], [`echo $CFLAGS | sed 's/-O[[0-9]] *//'`])
+AC_SUBST([O0CXXFLAGS], [`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`])
+
+gt_JAVACOMP([1.3], [1.4])
+gt_JAVAEXEC
+
+# We use gnulib, but from lib/local.mk instead of lib/Makefile.am.
+# So prefix paths with lib/. See also etc/prefix-gnulib-mk.
+gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'`
+for ac_var in ALLOCA_H ERRNO_H FCNTL_H GETOPT_H INTTYPES_H \
+ STDBOOL_H STDINT_H SYS_WAIT_H WCHAR_H WCTYPE_H
+do
+ eval "test 'x$ac_var' = x || $ac_var=lib/\$$ac_var"
+done