tree b9d60d837c55094c5ced1a6213984048423d3f7c
parent aa354d8fba290e526c084ff49a8a226aa260f9af
author Marc Kupietz <kupietz@ids-mannheim.de> 1785457077 +0900
committer Marc Kupietz <kupietz@ids-mannheim.de> 1785457077 +0900

Build against the rocksdb of the distribution

The build was pinned to librocksdb.so.5.11, so every consumer had to build that
one from source. The library itself needs no change for a current rocksdb, only
C++17, which rocksdb requires since version 7. Verified against rocksdb 10.2.1.

The library is looked up without a version now. Only shared libraries are
considered, as the static one is picked up separately as ROCKSDB_STATIC, and
distributions that package rocksdb usually ship no static library at all - the
static collocatordb is linked against the shared rocksdb in that case.

Note that the headers have to belong to the library that is found. A leftover
rocksdb below /usr/local shadows the one of the distribution, because
/usr/local/include comes first in the include path.

Existing databases stay readable: reading a database written by rocksdb 5.11
with 10.2.1 returns identical results for 251 word ids and for collocation
score pairs, and the test suite passes.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Change-Id: I03c672d069be0aabeb16d8d1414986a78caae79f