Hi,

When configure with ./configure --without-thread The code in master branch will failed with: thr_stub.c:170:1: error: conflicting types for 'ldap_pvt_thread_pool_retract' ldap_pvt_thread_pool_retract ( ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from thr_stub.c:21:0: ../../include/ldap_pvt_thread.h:237:1: note: previous declaration of 'ldap_pvt_thread_pool_retract' was here ldap_pvt_thread_pool_retract LDAP_P(( ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ thr_stub.c:254:1: warning: return type defaults to 'int' [-Wimplicit-int] ldap_pvt_thread_pool_pausecheck( ldap_pvt_thread_pool_t *tpool )

It seems the check in e12ca8b6fed6b8a2526 for "Fixes for multiple threadpool queues" change the API but does not update the thr_stub.c definition.