switch sqlite3 to single-threaded mode
Looking at 'perf top' of osmo-msc under load shows that there's a
significant amount of time spent in terms of locking (mutex,...)
which is useless as osmo-msc is a single-threaded application.
Unfortunately libdbi doesn't provide a mechanism to perform
sqlite3_config(), so we have to do it directly here, introducing an
explicit build-time dependency (and linkage) to libsqlite3.
Related: OS#5559
Change-Id: I5bbea90d28b6d73b64b9e5124ff59304b90a8a75
diff --git a/configure.ac b/configure.ac
index 3395ecc..1fd7260 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,6 +36,7 @@
fi
PKG_PROG_PKG_CONFIG([0.20])
+PKG_CHECK_MODULES(LIBSQLITE3, sqlite3)
PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.6.0)
PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.6.0)
PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 1.6.0)