diff -Nurd wip.orig/COPYING wip/COPYING
--- wip.orig/COPYING	1969-12-31 19:00:00.000000000 -0500
+++ wip/COPYING	2021-05-31 21:07:59.000000000 -0400
@@ -0,0 +1,58 @@
+From the WIP User's manual:
+
+WIP Description
+---------------
+
+WIP is a graphics software package available (at least) on Sun
+Workstations, VAX/VMS systems, Linux machines, Cray/UNICOS, and CONVEX
+systems. WIP is intended to be used to generate high quality graphics
+(using the PGPLOT graphics library) with a minimum of effort.
+
+Restrictions on Use
+-------------------
+
+WIP is copyright by the Berkeley-Illinois-Maryland Association (BIMA)
+Project. All portions of WIP, including source code, may be used
+subject only to the following restrictions:
+
+1. Unmodified WIP may be distributed freely on-site and may allow
+   unrestricted access worldwide
+
+2. Modified WIP must clearly note its non-standard nature and that
+   portion derived from WIP can not be claimed as proprietary
+
+3. Distribution of WIP requires formal notification to the WIP contact
+   listed below
+
+4. Receipt of WIP binds all recipients to the above restrictions and
+   to all restrictions on portions of WIP not developed by BIMA
+   (especially PGPLOT).
+
+Disclaimer
+----------
+
+We give no warranty, expressed or implied, for the software and/or
+documentation provided, including, without limitation, warranty of
+merchantability and warranty of fitness for a particular purpose.
+
+Trademark Acknowledgments
+-------------------------
+
+UNIX is a registered trademark of AT&T. CRAY and UNICOS are registered
+trademarks of Cray Research Inc. Sun is a registered trademark and Sun
+Workstation a trademark of Sun Microsystems Inc. VAX and VMS are
+registered trademarks of Digital Equipment Corporation. PGPLOT is
+copyright by the California Institute of Technology (all rights
+reserved).
+
+WIP Contact
+-----------
+
+Please address all communication concerning WIP and this manual to: 
+WIP
+James A. Morgan
+Astronomy Program 
+University of Maryland 
+College Park, MD 20742 
+INTERNET: morgan@astro.umd.edu 
+WWW: http://bima.astro.umd.edu/wip/
diff -Nurd wip.orig/makewip wip/makewip
--- wip.orig/makewip	1996-08-16 10:15:21.000000000 -0400
+++ wip/makewip	2021-05-31 21:08:10.000000000 -0400
@@ -1,4 +1,4 @@
-#!/bin/csh -f
+#!/bin/csh -ef
 # 
 #* makewip - A script to build the WIP task from source code.
 #& jm
@@ -198,6 +198,7 @@
 #    01mar96 jm  Added -lm to hpux default.  Also changed double quotes
 #                around literals to single quotes.
 #    16aug96 jm  Added -lgl to sgi default libraries.
+#    28sep04 sm  Added host Darwin
 #--
 #
 #  Set up some "standard" defaults.
@@ -208,7 +209,7 @@
 #
 #  The following is a list of acceptable hosts (all lowercase).
 #
-set hostList = (sun solaris sgi u2 convex osf i386-linux aix hpux)
+set hostList = (sun solaris sgi u2 convex osf i386-linux aix hpux ppc-darwin i386-darwin)
 #
 #  Set up the defaults for the command line options.
 #
@@ -325,6 +326,12 @@
       endif
     else if ($v_uname[1] == 'HP-UX') then
       set wiphost = 'hpux'
+    else if ($v_uname[1] == 'Darwin') then
+      if (`uname -p` == 'i386') then 
+	set wiphost = 'i386-darwin'
+      else
+        set wiphost = 'ppc-darwin'
+      endif
     else
       set wiphost = "$v_uname[1]"
     endif
@@ -375,14 +382,9 @@
     exit 1
 endif
 #
-#  Set up the help file definition and test that it exists.
+#  Set up the help file definition
 #
-set helpfile = -DHELPFILE=\"${wipdir}/wiphelp.dat\"
-if ((-e ${wipdir}/wiphelp.dat) == 0) then
-    echo "### The directory pointed to by '-wip ${wipdir}' does not have"
-    echo '### the WIP help file in it.  No default help file will be included.'
-    set helpfile = -DHELPFILE=\"wiphelp.dat\"
-endif
+set helpfile = -DHELPFILE=\"@PREFIX@/share/doc/wip/wiphelp.dat\"
 #
 #  Identify the output executable.
 #
@@ -572,17 +574,41 @@
       set theF = "$theF -g"
       set cFlags = "$cFlags -g"
     endif
+else if ("$wiphost" == 'ppc-darwin') then
+    set doranlib = 1
+    set doliblm = 1
+    set f77lib = ($f77lib -lgcc)
+    set theM = 'gfortran'
+    if ($dodebug > 0) then
+      set theM = "$theM -g"
+      set cFlags = "$cFlags -g"
+    else
+      set theM = "$theM -O"
+      set cFlags = "$cFlags -O"
+    endif
+else if ("$wiphost" == 'i386-darwin') then
+    set doranlib = 1
+    set doliblm = 1
+    set f77lib = ($f77lib -lgcc)
+    set theM = 'gfortran'
+    if ($dodebug > 0) then
+      set theM = "$theM -g"
+      set cFlags = "$cFlags -g -DIEEEByteSwap"
+    else
+      set theM = "$theM -O"
+      set cFlags = "$cFlags -O -DIEEEByteSwap"
+    endif
 endif
 #
 #  Modify the f77lib to handle C code compiled with GNU C.
 #
-if (`echo ${ccname} | grep -c "gcc"` > 0) then
-    set doliblm = 1
-    set f77lib = ( $f77lib -lgcc )
-    if (`echo ${ccname} ${cFlags} | grep -c "ansi"` < 1) then
-      echo '### The gcc compiler should be called with the -ansi flag.'
-    endif
-endif
+#if (`echo ${ccname} | grep -c "gcc"` > 0) then
+#    set doliblm = 1
+#    set f77lib = ( $f77lib -lgcc )
+#    if (`echo ${ccname} ${cFlags} | grep -c "ansi"` < 1) then
+#      echo '### The gcc compiler should be called with the -ansi flag.'
+#    endif
+#endif
 #
 #  Include the math library on those machines that need it.
 #
@@ -684,7 +710,6 @@
         ranlib $wiplib
       endif
     endif
-    rm -fr $objList >& /dev/null
 endif
 #
 echo ""
@@ -698,7 +723,6 @@
 #
 echo "$theM -o ${bin} wipmain.o $wiplib $graphdir $graphlib $f77lib"
       $theM -o ${bin} wipmain.o $wiplib $graphdir $graphlib $f77lib
-rm -fr wipmain.o >& /dev/null
 echo ""
 ls -l ${bin}
 echo ""
diff -Nurd wip.orig/src/branch/wipmain.c wip/src/branch/wipmain.c
--- wip.orig/src/branch/wipmain.c	1998-01-21 12:36:01.000000000 -0500
+++ wip/src/branch/wipmain.c	2021-05-31 21:36:47.000000000 -0400
@@ -70,9 +70,9 @@
 }
 
 #ifdef PROTOTYPE
-void main(int argc, char *argv[])
+int main(int argc, char *argv[])
 #else
-void main(argc, argv)
+int main(argc, argv)
 int argc;
 char *argv[];
 #endif /* PROTOTYPE */
diff -Nurd wip.orig/src/drivers/basic.c wip/src/drivers/basic.c
--- wip.orig/src/drivers/basic.c	1996-11-13 12:05:52.000000000 -0500
+++ wip/src/drivers/basic.c	2021-05-31 22:00:49.000000000 -0400
@@ -56,6 +56,9 @@
 #define WIP_IMAGE
 #include "image.h"
 
+int wipDebugMode(void); // also in declare.h, but might be forward
+                        // declaration for local function
+
 /* Define parameters needed just for this driver. */
 
 #define TYPE_BYTE   1
diff -Nurd wip.orig/src/drivers/fits.c wip/src/drivers/fits.c
--- wip.orig/src/drivers/fits.c	1996-11-13 12:42:06.000000000 -0500
+++ wip/src/drivers/fits.c	2021-05-31 22:02:10.000000000 -0400
@@ -47,6 +47,9 @@
 #define WIP_IMAGE
 #include "image.h"
 
+int wipDebugMode(void); // also in declare.h, but might be forward
+                        // declaration for local function
+
 /* Define parameters needed just for this driver. */
 
 #define TYPE_BYTES 1
diff -Nurd wip.orig/src/drivers/miriad.c wip/src/drivers/miriad.c
--- wip.orig/src/drivers/miriad.c	1996-11-13 12:10:22.000000000 -0500
+++ wip/src/drivers/miriad.c	2021-05-31 21:51:31.000000000 -0400
@@ -32,6 +32,9 @@
 #define WIP_IMAGE
 #include "image.h"
 
+int wipDebugMode(void); // also in declare.h, but might be forward
+                        // declaration for local function
+
 /* Define parameters needed just for this driver. */
 
 #define CACHE_ENT      16             /* Alignment of cache items. */
diff -Nurd wip.orig/src/fit/fit.c wip/src/fit/fit.c
--- wip.orig/src/fit/fit.c	1996-11-13 11:35:26.000000000 -0500
+++ wip/src/fit/fit.c	2021-05-31 22:03:37.000000000 -0400
@@ -28,6 +28,9 @@
 
 #include "wip.h"
 
+int wippolyfit(char *rest, float x[], float y[], int nxy, float sig[],
+    int nsig, int type, int npoly, float poly[]); // in fit/polyfit.c
+
 /* Global variables for just this file */
 
 static enum {NoFit, Linear, Polynomial, Legendre, Gaussian} PreviousFit;