diff --git a/configure.in b/configure.in
index 701a9dbc..b4365663 100644
--- a/configure.in
+++ b/configure.in
@@ -63,6 +63,14 @@ AC_ARG_WITH(gdbm,
           esac ], [use_gdbm=false])
 AM_CONDITIONAL(COND_USE_GDBM, test x$use_gdbm = xtrue)
         
+AC_ARG_WITH(gdbm-includes,
+	[--with-gdbm-includes[[=DIR]]          use gdbm include files in DIR],[
+	if test "$withval" != "no" -a "$withval" != "yes"; then
+	 Z_DIR=$withval
+	 CPPFLAGS="${CPPFLAGS} -I$withval"
+	fi
+])
+
 AC_ARG_WITH(howl-includes,
 	[--with-howl-includes[[=DIR]]          use howl include files in DIR],[
 	if test "$withval" != "no" -a "$withval" != "yes"; then
@@ -71,6 +79,14 @@ AC_ARG_WITH(howl-includes,
 	fi
 ])
 
+AC_ARG_WITH(gdbm-libs,
+	[--with-gdbm-libs[[=DIR]]          use gdbm lib files in DIR],[
+	if test "$withval" != "no" -a "$withval" != "yes"; then
+	 Z_DIR=$withval;
+	 LDFLAGS="${LDFLAGS} -L$withval"
+	fi
+])
+
 AC_ARG_WITH(howl-libs,
 	[--with-howl-libs[[=DIR]]          use howl lib files in DIR],[
 	if test "$withval" != "no" -a "$withval" != "yes"; then
diff --git a/src/configfile.c b/src/configfile.c
index ca2f1c85..639d8ef7 100644
--- a/src/configfile.c
+++ b/src/configfile.c
@@ -23,6 +23,7 @@
 #  include "config.h"
 #endif
 
+#define _POSIX_PTHREAD_SEMANTICS
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>