From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Wed, 27 Nov 2024 22:28:00 +0000 (+0200)
Subject: lib-sql: Make sure driver-sqlpool isn't optimized away by linker
X-Git-Tag: 2.4.0~100
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b17c1ad965ba4fae8174c3935adc544b05bd9d49;p=thirdparty%2Fdovecot%2Fcore.git

lib-sql: Make sure driver-sqlpool isn't optimized away by linker
---

diff --git a/src/lib-sql/sql-api.c b/src/lib-sql/sql-api.c
index 1af9554458..1d4692d4a2 100644
--- a/src/lib-sql/sql-api.c
+++ b/src/lib-sql/sql-api.c
@@ -50,8 +50,16 @@ void sql_drivers_deinit_without_drivers(void)
 	array_free(&sql_drivers);
 }
 
+extern struct sql_db driver_sqlpool_db;
+
 void sql_drivers_init(void)
 {
+	/* Access driver-sqlpool in some way to avoid dropping the .o entirely
+	   when linking libsql.a to auth process when sql drivers are built as
+	   plugins. */
+	if (driver_sqlpool_db.v.init != NULL)
+		i_unreached();
+
 	sql_drivers_init_without_drivers();
 	sql_drivers_init_all();
 }