1. When one of the COMPONENT_DIRS points to a component directory
(i.e. a directory containing component.mk, not a directory of multiple
components), and there is a subdirectory in it which also contains
a component, the subdirectory was mistakenly added to the list of
components and compiled.
For example:
main/
component.mk
main.c
test/
component.mk
test_main.c
Would compile test_main.c and link libtest.a.
2. When one of the COMPONENT_DIRS points to a component directory, and
the parent directory contained a directory with the same name as
another component, that directory would be mistakenly added to the
COMPONENT_PATHS.
For example:
esp/
esp-idf/
esp32/
(random stuff)
mycomponent/
component.mk
mycomponent.c
myproject/
main/
Makefile
and Makefile sets EXTRA_COMPONENT_DIRS=$(realpath ../mycomponent),
then "esp32" directory which is at the same level as mycomponent
was added to COMPONENT_PATHS.
3. If EXTRA_COMPONENT_DIRS pointed to a directory with a list of
components, and one of the subdirectories was not a component, but
had the same name as another component, than that directory would be
mistakenly added to COMPONENT_PATHS instead of the real esp32
component directory.
For example:
my_components/
my_component/
component.mk
my_component.c
esp32/
(some random stuff)
and EXTRA_COMPONENT_DIRS would point to my_components/, then "esp32"
directory would be added to COMPONENT_PATHS instead of the real esp32
component directory.