+ * This file re#defines selected ldap_pvt_thread_* names to
+ * ldap_int_thread_*, which will be used from wrappers in thr_debug.c.
+ * Two ldap_int_*() calls are redirected to call ldap_debug_*(): These
+ * are wrappers around the originals, whose definitions are not renamed.
+ * This file then #includes ldap_pvt_thread.h to declare the renamed
+ * functions/types. If #included from thr_debug.c it finally #undefines
+ * the macros again.
+ *
+ * include/ldap_pvt_thread.h declares the typedefs ldap_pvt_thread*_t as
+ * either wrapper types ldap_debug_thread*_t or their usual definitions
+ * ldap_int_thread*_t, depending on the LDAP_THREAD_DEBUG_WRAP option.
+ * When defining the underlying implementation, this file then redirects
+ * the type names back to the original ldap_int_thread*_t types.
+ * include/ldap_<int,pvt>_thread.h also do some thr_debug magic.
+ *
+ * So,
+ * libldap_r/<not thr_debug.c> thus define ldap_int_thread_*() instead
+ * of ldap_pvt_thread_*().
+ * thr_debug.c defines the ldap_pvt_*() and ldap_debug_*() functions.