[Image-SIG] patch to Tk/tkImaging.c (transparency problem) [PIL 1.1.1]

[Eric Pettersen]

Tk/tkImaging.c does not fully initialize the structure used to control the  
copying of an alpha-containing image, which leads to possibly spurious  
behavior (compiler/linker-dependent).  Here is a context diff:

*** tkImaging.c 2001/03/15 19:21:12     1.1
--- tkImaging.c 2001/03/15 23:02:44
***************
*** 142,147 ****
--- 142,148 ----
          run.offset[0] = 0;
          run.offset[1] = 1;
          run.offset[2] = 2;
+         run.offset[3] = 3;

          /* Copy opaque runs to photo image */
          for (y = 0; y < block.height; y++) {
---
			Eric Pettersen
			UCSF Computer Graphics Lab
			pett@cgl.ucsf.edu
			http://www.cgl.ucsf.edu