diff --git a/configure.in b/configure.in
index 090367eb0..e8b5cbcba 100644
--- a/configure.in
+++ b/configure.in
@@ -204,6 +204,10 @@ case "${host}" in
 	shared="-b"
 	;;
 
+     *-*-darwin1.4)
+	shared="-bundle -undefined suppress -flat_namespace"
+	;;
+
      *-*-darwin*)
 	shared="-bundle -undefined suppress"
 	;;
diff --git a/macosx.txt b/macosx.txt
index e68a9cd8b..112ff561d 100644
--- a/macosx.txt
+++ b/macosx.txt
@@ -11,7 +11,16 @@
 
   Unpack this tar file and read the README and Makefile.  Install the library according to the instructions.  Installation in /usr/local is strongly recommended since otherwise autoconf very likely won't be able to find it.
 
-2)  Configure, build and install the Icarus Verilog sources.
+2) Make sure you have a copy of the 'gperf' tool.  This does not come with the Mac OS X 10.1 developer tools, so you probably don't.  You can whck with:
+
+  %  which gperf
+
+  If not found, grab a gperf source package and install it.
+
+  ftp://ftp.gnu.org/gnu/gperf/gperf-2.7.2.tar.gz
+
+
+3)  Configure, build and install the Icarus Verilog sources.
 
   The only change you need to make here is to use a configure command like:
 
@@ -24,5 +33,5 @@
 
   You can, of course, add other configure options.
 
-3) Done!
+4) Done!
 
diff --git a/t-dll.h b/t-dll.h
index 3d2d4cf6c..bfd973915 100644
--- a/t-dll.h
+++ b/t-dll.h
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT) && !defined(macintosh)
-#ident "$Id: t-dll.h,v 1.69 2001/11/01 04:25:31 steve Exp $"
+#ident "$Id: t-dll.h,v 1.70 2001/11/04 05:03:21 steve Exp $"
 #endif
 
 # include  "target.h"
@@ -34,6 +34,8 @@ typedef void* ivl_dll_t;
 #elif defined(HAVE_DL_H)
 # include  <dl.h>
 typedef shl_t ivl_dll_t;
+#else
+# error No DLL stub support for this target.
 #endif
 
 struct ivl_design_s {
@@ -582,6 +584,9 @@ struct ivl_statement_s {
 
 /*
  * $Log: t-dll.h,v $
+ * Revision 1.70  2001/11/04 05:03:21  steve
+ *  MacOSX 10.1 updates.
+ *
  * Revision 1.69  2001/11/01 04:25:31  steve
  *  ivl_target support for cassign.
  *
diff --git a/tgt-fpga/configure.in b/tgt-fpga/configure.in
index ef405d558..6aa4f85f0 100644
--- a/tgt-fpga/configure.in
+++ b/tgt-fpga/configure.in
@@ -44,6 +44,9 @@ case "${host}" in
 	shared="-b"
 	;;
 
+     *-*-darwin1.4)
+	shared="-bundle -undefined suppress -flat_namespace"
+	;;
 
      *-*-darwin*)
 	shared="-bundle -undefined suppress"
diff --git a/tgt-vvp/configure.in b/tgt-vvp/configure.in
index 654f71e82..fcc2be6e9 100644
--- a/tgt-vvp/configure.in
+++ b/tgt-vvp/configure.in
@@ -44,6 +44,10 @@ case "${host}" in
 	shared="-b"
 	;;
 
+     *-*-darwin1.4)
+	shared="-bundle -undefined suppress -flat_namespace"
+	;;
+
      *-*-darwin*)
 	shared="-bundle -undefined suppress"
 	;;
diff --git a/vpip/configure.in b/vpip/configure.in
index ffdfa5328..b21f34d47 100644
--- a/vpip/configure.in
+++ b/vpip/configure.in
@@ -21,6 +21,9 @@ case "${host}" in
      *-*-hpux*)
 	shared="-b"
 	;;
+     *-*-darwin1.4)
+	shared="-bundle -undefined suppress -flat_namespace"
+	;;
      *-*-darwin*)
 	shared="-bundle -undefined suppress"
 	;;
diff --git a/vvp/arith.cc b/vvp/arith.cc
index 2bece7e43..989c71765 100644
--- a/vvp/arith.cc
+++ b/vvp/arith.cc
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT)
-#ident "$Id: arith.cc,v 1.18 2001/10/31 04:27:46 steve Exp $"
+#ident "$Id: arith.cc,v 1.19 2001/11/04 05:03:21 steve Exp $"
 #endif
 
 # include  "arith.h"
@@ -25,7 +25,10 @@
 # include  <limits.h>
 # include  <stdio.h>
 # include  <assert.h>
+# include  <stdlib.h>
+#ifdef HAVE_MALLOC_H
 # include  <malloc.h>
+#endif
 
 void vvp_arith_::output_x_(vvp_ipoint_t base, bool push, unsigned val)
 {
@@ -505,6 +508,9 @@ void vvp_shiftr::set(vvp_ipoint_t i, bool push, unsigned val, unsigned)
 
 /*
  * $Log: arith.cc,v $
+ * Revision 1.19  2001/11/04 05:03:21  steve
+ *  MacOSX 10.1 updates.
+ *
  * Revision 1.18  2001/10/31 04:27:46  steve
  *  Rewrite the functor type to have fewer functor modes,
  *  and use objects to manage the different types.
diff --git a/vvp/functor.cc b/vvp/functor.cc
index 74ed49e9b..526dee701 100644
--- a/vvp/functor.cc
+++ b/vvp/functor.cc
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT)
-#ident "$Id: functor.cc,v 1.30 2001/11/01 03:00:19 steve Exp $"
+#ident "$Id: functor.cc,v 1.31 2001/11/04 05:03:21 steve Exp $"
 #endif
 
 # include  "functor.h"
@@ -27,7 +27,10 @@
 # include  "debug.h"
 # include  <assert.h>
 # include  <string.h>
+# include  <stdlib.h>
+#ifdef HAVE_MALLOC_H
 # include  <malloc.h>
+#endif
 
 /*
  * Functors are created as the source design is read in. Each is
@@ -186,6 +189,9 @@ void extra_inputs_functor_s::set(vvp_ipoint_t i, bool push,
 
 /*
  * $Log: functor.cc,v $
+ * Revision 1.31  2001/11/04 05:03:21  steve
+ *  MacOSX 10.1 updates.
+ *
  * Revision 1.30  2001/11/01 03:00:19  steve
  *  Add force/cassign/release/deassign support. (Stephan Boettcher)
  *