| # Try to guess the build directory: | |
| # we look for subdirectories of ../.. that look like ninja build dirs. | |
| ifeq ($(BUILD_DIR),) | |
| dirs = $(dir $(wildcard ../../*/.ninja_log)) | |
| ifeq ($(dirs),) | |
| $(error Cannot guess build dir, set BUILD_DIR) | |
| endif | |
| ifneq ($(firstword $(dirs)),$(dirs)) | |
| $(warning Candidates: $(dirs)) | |
| $(error Too many build dirs to pick from, set BUILD_DIR) | |
| endif | |
| BUILD_DIR=$(dirs) | |
| endif |