Add mention to check config.log if thread test failure.

configure

@@ -19174,8 +19174,8 @@ echo "$as_me: error: Can not build thread test proram." >&2;}
    { (exit 1); exit 1; }; })
 $srcdir/src/tools/thread/thread_test >&5 ||
 	( rm -f src/Makefile.global
-	  { { echo "$as_me:$LINENO: error: Thread test program failed." >&5
-echo "$as_me: error: Thread test program failed." >&2;}
+	  { { echo "$as_me:$LINENO: error: Thread test program failed.  See 'config.log' for details." >&5
+echo "$as_me: error: Thread test program failed.  See 'config.log' for details." >&2;}
    { (exit 1); exit 1; }; })
 $MAKE -C $srcdir/src/tools/thread clean >&5 ||
 	( rm -f src/Makefile.global

configure.in

 dnl Process this file with autoconf to produce a configure script.
-dnl $PostgreSQL: pgsql/configure.in,v 1.327 2004/04/25 20:57:32 momjian Exp $
+dnl $PostgreSQL: pgsql/configure.in,v 1.328 2004/04/25 21:04:59 momjian Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
@@ -1232,7 +1232,7 @@ $MAKE -C $srcdir/src/tools/thread >&5 ||
 	  AC_MSG_ERROR([Can not build thread test proram.]))
 $srcdir/src/tools/thread/thread_test >&5 ||
 	( rm -f src/Makefile.global
-	  AC_MSG_ERROR([Thread test program failed.]))
+	  AC_MSG_ERROR([Thread test program failed.  See 'config.log' for details.]))
 $MAKE -C $srcdir/src/tools/thread clean >&5 ||
 	( rm -f src/Makefile.global
 	  AC_MSG_ERROR([Can not clean thread test directory.]))