Peter S. Mazinger writes:

Corrects libpthread_db name (I do not know why libpthread_db.so uses
libpthread_db.so.1 instead of libpthread_db.so.$(MAJOR_VERSION) as soname)

Note by Jocke:
I don't known either but until then this is the right thing to do.

libpthread/Makefile

@@ -101,7 +101,7 @@ shared: all
 			$(END_FILES); \
 		$(INSTALL) -d $(TOPDIR)lib; \
 		$(RM) $(TOPDIR)lib/$(LIBTHREAD_DB_SHARED_FULLNAME) \
-			$(TOPDIR)lib/$(LIBTHREAD_DB_SHARED).$(MAJOR_VERSION); \
+			$(TOPDIR)lib/$(LIBTHREAD_DB_SHARED).1; \
 		$(INSTALL) -m 644 $(LIBTHREAD_DB_SHARED_FULLNAME) $(TOPDIR)lib; \
 		$(LN) -sf $(LIBTHREAD_DB_SHARED_FULLNAME) \
 			$(TOPDIR)lib/$(LIBTHREAD_DB_SHARED); \