![]() This updates the minimal supported version of CMake to 3.16, which in turn enables us to use more CMake features and have a cleaner build system. This is the version that provides most new features and also the one we use in our latest docker image for CI. |
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main | ||
prebuilt | ||
CMakeLists.txt | ||
README.md |
README.md
Import Prebuilt Library Example
This example illustrates how to import a prebuilt static library in the ESP-IDF build system.
Example Flow
Users need to first build the project in the prebuilt subdirectory:
cd prebuilt
idf.py build
This builds a component named prebuilt, which has private dependency on ESP-IDF components spi_flash
, log
and app_update
(see its CMakeLists.txt). Once built, the archive file libprebuilt.a
, along with the header file prebuilt.h
, is automatically copied to the main
component of this example project.
The main
component's CMakeLists.txt demonstrates how to import libprebuilt.a
and link it to main
so that the definitions inside can be used.
It also demonstrates how to specify the same dependencies the original component had so as to properly resolve symbols used inside the prebuilt library.
Users can then return to this directory and build the main example:
cd ..
idf.py build
Output
The example simply outputs the current running partition.
I (319) prebuilt: The running partition is 'factory'!
There is a discussion on importing prebuilt libraries in the programming guide under API Guides
-> Build System
-> Using Prebuilt Libraries with Components