The commit introduces a new CMake configuration option, WITH_THRIFT,
which accepts "auto", "system", or "bundled". In "auto" mode (the
default), the build system attempts to use the system-installed Thrift
library and falls back to the bundled version if the system library is
not available. Setting WITH_THRIFT to "system" enforces the use of the
system Thrift, causing the configuration to fail if it isn't found,
while "bundled" forces the use of the bundled version.
The change mainly useful for downstream maintainers as it gives them
flexibility over dependency management.
Downstream-issue: https://bugs.gentoo.org/949680