if test "$MAKEINFO" != "no" && \
- test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[^0-9]*([5-9]|4\.[6-9])'`" = x; then
+ test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[^0-9]*([1-4][0-9]+|[5-9]|4\.[6-9]|4\.[1-5][0-9]+)'`" = x; then
MAKEINFO=no
fi
fi
+if test x"$ac_cv_func_alloca_works" != xyes; then
+ { { echo "$as_me:$LINENO: error: a system implementation of alloca is required " >&5
+echo "$as_me: error: a system implementation of alloca is required " >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
# fmod, logb, and frexp are found in -lm on most systems.
# On HPUX 9.01, -lm does not contain logb, so check for sqrt.