[gdk-pixbuf] Update VS2008/2010 README.txt

[Chun-wei Fan <fanchunwei src gnome org>]

commit ed6e765f6ae1c5fe8f958b06bcbbb03d32b9fe0d
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Sun May 1 09:38:15 2011 +0800

    Update VS2008/2010 README.txt
    
    Tell people about the usage of ZLib to avoid the problem such as
    the one mentioned in Bug 633977

 build/win32/vs10/README.txt |    6 +++++-
 build/win32/vs9/README.txt  |    6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/build/win32/vs10/README.txt b/build/win32/vs10/README.txt
index 0f47bbc..866b5a0 100644
--- a/build/win32/vs10/README.txt
+++ b/build/win32/vs10/README.txt
@@ -49,7 +49,11 @@ b) Build them yourself with VS10 (but you may most probably wish to get
 
    The above 6 packages all have supported mechanisms (Makefiles and/or Project
    Files) for building under VS10 (upgrade the Project Files from earlier VS
-   versions will do for these, when applicable)
+   versions will do for these, when applicable).  It is recommended that ZLib
+   is built using the win32/Makefile.msc makefile with VS10 with the ASM routines
+   to avoid linking problems (copy zdll.lib to zlib1.lib[Release] or to zlib1d.lib
+   [Debug] after completion of compilation)-see win32/Makefile.msc in ZLib for
+   more details.
 
 * This GLib refers to a build that is built by VS10
 
diff --git a/build/win32/vs9/README.txt b/build/win32/vs9/README.txt
index d90f55b..255b5f5 100644
--- a/build/win32/vs9/README.txt
+++ b/build/win32/vs9/README.txt
@@ -49,7 +49,11 @@ b) Build them yourself with VS9 (but you may most probably wish to get
 
    The above 6 packages all have supported mechanisms (Makefiles and/or Project
    Files) for building under VS9 (upgrade the Project Files from earlier VS
-   versions will do for these, when applicable)
+   versions will do for these, when applicable).  It is recommended that ZLib
+   is built using the win32/Makefile.msc makefile with VS9 with the ASM routines
+   to avoid linking problems (copy zdll.lib to zlib1.lib[Release] or to zlib1d.lib
+   [Debug] after completion of compilation)-see win32/Makefile.msc in ZLib for
+   more details.
 
 * This GLib refers to a build that is built by VS9