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https://github.com/RIOT-OS/RIOT.git
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6ac8aba955
Previously, external modules had to be individually added to both EXTERNAL_MODULE_DIRS and USEMODULE. If those where not in sync, this resulted in build errors. With this commit, search folders for external modules are added to EXTERNAL_MODULE_DIRS instead. So lets say the file system structure is like this ``` └── /path/to/external/modules ├── mod_a │ ├── Makefile │ ├── Makefile.dep │ ├── Makefile.include │ ├── foo.c │ └── include │ └── external_module.h └── mod_b ├── Makefile └── bar.c ``` One now adds `/path/to/external/modules` to EXTERNAL_MODULES and only with `USEMODULE += mod_a` the corresponding module, dependencies and include settings are actually used. Hence, it is possible to configure `EXTERNAL_MODULE_DIRS` from `~/.profile` or `~/.bashrc` once and never needs to worry about them again.
54 lines
2.0 KiB
Makefile
54 lines
2.0 KiB
Makefile
# Perform a recursive dependency resolution: Include $(RIOTBASE)/Makefile.dep
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# until no new modules, pkgs, or features are pull in order to catch all
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# transient dependencies
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# Locate used modules in $(EXTERNAL_MODULE_DIRS).
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EXTERNAL_MODULE_PATHS := $(sort $(foreach dir,$(EXTERNAL_MODULE_DIRS),\
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$(foreach mod,$(USEMODULE),$(dir $(wildcard $(dir)/$(mod)/Makefile)))))
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# Back up current state to detect changes
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OLD_STATE := $(USEMODULE) $(USEPKG) $(FEATURES_USED)
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# pull in dependencies of the currently used modules and pkgs
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include $(RIOTBASE)/Makefile.dep
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# check if required features are provided and update $(FEATURES_USED)
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include $(RIOTMAKE)/features_check.inc.mk
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# translate used features into used module, where needed
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include $(RIOTMAKE)/features_modules.inc.mk
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# sort and de-duplicate used modules, pkgs, and features for comparison
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USEMODULE := $(sort $(USEMODULE))
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USEPKG := $(sort $(USEPKG))
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FEATURES_USED := $(sort $(FEATURES_USED))
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NEW_STATE := $(USEMODULE) $(USEPKG) $(FEATURES_USED)
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# If set of used modules, pkgs, and features has changed during last run, run
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# again to recursively catch transitive dependencies
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ifneq ($(OLD_STATE),$(NEW_STATE))
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include $(RIOTMAKE)/dependency_resolution.inc.mk
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else
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# If module auto_init is not used, silently disable all of its submodules
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ifeq (,$(filter auto_init,$(USEMODULE)))
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DISABLE_MODULE += auto_init_%
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endif
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# add default modules again, as $(DEFAULT_MODULE) might have been extended
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# during dependency processing
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USEMODULE += $(filter-out $(DISABLE_MODULE),$(DEFAULT_MODULE))
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# Sort and de-duplicate used modules and default modules for readability
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USEMODULE := $(sort $(USEMODULE))
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DEFAULT_MODULE := $(sort $(DEFAULT_MODULE))
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# Warn about used deprecated modules
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include $(RIOTMAKE)/deprecated_modules.inc.mk
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DEPRECATED_MODULES_USED := $(sort $(filter $(DEPRECATED_MODULES),$(USEMODULE)))
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ifneq (,$(DEPRECATED_MODULES_USED))
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$(shell $(COLOR_ECHO) "$(COLOR_RED)Deprecated modules are in use:$(COLOR_RESET)"\
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"$(DEPRECATED_MODULES_USED)" 1>&2)
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endif
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endif
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