Repatch (from linux) of OSX IRAF

1 files changed, 31 insertions, 0 deletions

diff --git a/unix/sun/ss1.patch b/unix/sun/ss1.patch
new file mode 100644
index 00000000..dcd0ce15
--- /dev/null
+++ b/unix/sun/ss1.patch
@@ -0,0 +1,31 @@
+This is to fix the "chicken scratches" bug that occurs with IMTOOL on a
+sparcstation.  The problem occurs due to a bug in the SunOS kernel for the
+sparcstation.  The patch given here is a workaround to avoid the problem
+until Sun fixes the bug.
+
+To patch the imtool executable, login as iraf, then make a backup copy of
+the imtool.e executable and patch the online one, as follows (be sure to
+get the case of the ?X and ?W right):
+
+	% cd $iraf/unix/bin.sparc
+	% cp imtool.e imtool.e.OLD
+	%
+	% adb -w imtool.e
+	0xc2a0?X
+*	0xc2a0:         ac102018
+	0xc2a0?W0xac10200c
+*	0xc2a0:         0xac102018      =       0xac10200c
+	$q
+	%
+
+In the sequence shown above, the lines marked * are adb output.  If the old
+value of location 0xc2a0 is not ac102018 (hex) as shown, then you have an
+old or otherwise unusual version of IMTOOL and the patch should not be
+applied.  Once the executable has been patched, either copy the new executable
+to /usr/bin/imtool (or wherever imtool lives on your system) or rerun the
+INSTALL script in $hlib.
+
+The fix changes the rasterop used to draw the IMTOOL crosshair cursor from
+a copy-source-to-destination to an xor-source-and-destination.  This results
+in a less visible cursor, but avoids the bug that leaves the scratches all
+over the IMTOOL window.