here-abarany opened a new pull request, #3435:
URL: https://github.com/apache/avro/pull/3435
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## What is the purpose of the change
This allows for only the static or shared library to be built if only one of
them is needed, avoiding the duplicate compilations and avoiding installing
unwanted libraries. The standard CMake variable `BUILD_SHARED_LIBS` is also
respected when explicitly set, enabling only the corresponding shared/static
library, allowing the build to interface cleaner with standard build scripts
built on CMake.
The `AVRO_BUILD_SHARED` CMake variable may now be set to `OFF` to disable
building of the shared library, and `AVRO_BUILD_STATIC` may be set to `OFF` to
disable building of the static library. The default values of these variables
respect the value of `BUILD_SHARED_LIBS`:
* If `BUILD_SHARED_LIBS` is unset, shared and static are both enabled with
the same behavior as before.
* If `BUILD_SHARED_LIBS` is `ON`, only the shared library is enabled.
* If `BUILD_SHARED_LIBS` is `OFF`, only the static library is enabled.
The tests and executables will link against the shared library if the static
library is disabled.
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage. I
manually checked all three permutations of the default static and shared,
static only, and shared only.
## Documentation
CMake build options do not appear to be documented, so no documentation has
been added.
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