| Leslie Giles | 87294e9 | 2017-06-28 15:11:00 -0400 | [diff] [blame] | 1 | # |
| 2 | # Copyright 2016 RIFT.IO Inc |
| 3 | # |
| 4 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | # you may not use this file except in compliance with the License. |
| 6 | # You may obtain a copy of the License at |
| 7 | # |
| 8 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | # |
| 10 | # Unless required by applicable law or agreed to in writing, software |
| 11 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | # See the License for the specific language governing permissions and |
| 14 | # limitations under the License. |
| 15 | # |
| 16 | # Author(s): Tim Mortsolf |
| 17 | # Creation Date: 11/25/2013 |
| 18 | # |
| 19 | |
| 20 | ## |
| 21 | # Define a Makefile function: find_upwards(filename) |
| 22 | # |
| 23 | # Searches for a file of the given name in the directory ., .., ../.., ../../.., etc., |
| 24 | # until the file is found or the root directory is reached |
| 25 | ## |
| 26 | find_upward = $(word 1, $(shell while [ `pwd` != / ] ; do find `pwd` -maxdepth 1 -name $1 ; cd .. ; done)) |
| 27 | |
| 28 | ## |
| 29 | # Call find_upward("Makefile.top") to find the nearest upwards adjacent Makefile.top |
| 30 | ## |
| 31 | makefile.top := $(call find_upward, "Makefile.top") |
| 32 | |
| 33 | ## |
| 34 | # If Makefile.top was found, then include it |
| 35 | ## |
| 36 | include $(makefile.top) |