Understanding the Build-system#
The build system is described by the CMakeLists.txt and is composed of few projects each responsible
for a specific task. Once configured, the Outer Project is responsible for driving the overall build
composed of multiple project called external project. Here is the list of external project:
CMakeProject-src-downloadCMakeProject-binary-downloadCMakeProject-buildCMakePythonDistributions: This corresponds to the Inner Project represented below.
The flow chart represented below illustrates which external projects are included based on the configure options and describes the role of each one:
Name |
Description |
|---|---|
CMakeLists |
CMake configuration file |
Download source ? |
If option |
Download Source archive |
External project downloading archives from https://cmake.org/files/. |
Re-use source directory |
Empty external project. |
Build from Source ? |
Answer based on option |
CMakeProject-binary-download |
External project downloading pre-built binary archives from https://cmake.org/files/. |
CMakeProject-build |
External project building CMake from source. |
Strip executables |
If possible, reduce wheel size stripping cmake, cpack and ctest executables |
Which files to install? |
Answer based on option |
Install prebuilt binaries |
Recursively glob all files and explicitly add install rules. |
Install CMake project |
Achieved by including |