MIT fix

BitKeeper/etc/ignore:
  Added mysql-test/install_test_db mysql-test/mysql-test-run to the ignore list
include/global.h:
  another fix for MIT-threads

.bzrignore

@@ -175,3 +175,5 @@ support-files/mysql.server
 support-files/mysql.spec
 tags
 libmysql_r/conf_to_src
+mysql-test/install_test_db
+mysql-test/mysql-test-run

include/global.h

@@ -479,6 +479,7 @@ extern double		my_atof(const char*);
 #undef HAVE_TEMPNAM				/* Use ours */
 #undef HAVE_PTHREAD_SETPRIO
 #undef HAVE_FTRUNCATE
+#undef HAVE_READLINK
 #endif
 
 /* This is from the old m-machine.h file */