Patches for DB version 2.2.6

1. Problem: The DB library doesn't correctly compile on Solaris, when using the GNU gcc compiler.
   

   Apply the following patch to the dist/configure file.

   *** dist/configure.orig Wed Aug 20 18:58:12 1997
   --- dist/configure      Wed Aug 20 18:58:46 1997
   ***************
   *** 2577,2583 ****
     cat > conftest.$ac_ext <<EOF
     #line 2579 "configure"
     #include "confdefs.h"
   ! #include <thread.h>, #include <synch.h>
     int main() {
     typedef sema_t tsl_t;
      sema_t x;
   --- 2577,2583 ----
     cat > conftest.$ac_ext <<EOF
     #line 2579 "configure"
     #include "confdefs.h"
   ! #include <synch.h>
     int main() {
     typedef sema_t tsl_t;
      sema_t x;