[gdk-pixbuf] Visual Studio builds: Fix project file move to win32/

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

commit c3b7d3bc498cedc3daf14c14c0f97c42e2fce508
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Jan 20 17:51:53 2017 +0800

    Visual Studio builds: Fix project file move to win32/
    
    Some auxillary scripts and NMake Makefiles must have their paths updated
    also to work properly.

 win32/introspection-msvc.mak |    2 +-
 win32/pc_base.py             |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/win32/introspection-msvc.mak b/win32/introspection-msvc.mak
index 8739844..26501f5 100644
--- a/win32/introspection-msvc.mak
+++ b/win32/introspection-msvc.mak
@@ -8,7 +8,7 @@
 # Change or pass in or set the following to suit your environment
 
 !if "$(PREFIX)" == ""
-PREFIX = ..\..\..\vs$(VSVER)\$(PLAT)
+PREFIX = ..\..\vs$(VSVER)\$(PLAT)
 !endif
 
 !if ![setlocal]                && \
diff --git a/win32/pc_base.py b/win32/pc_base.py
index 587ba83..285b6cd 100644
--- a/win32/pc_base.py
+++ b/win32/pc_base.py
@@ -23,7 +23,7 @@ class BasePCItems:
         self.libdir = ''
         self.prefix = ''
         self.srcdir = os.path.dirname(__file__)
-        self.top_srcdir = self.srcdir + '\\..\\..'
+        self.top_srcdir = self.srcdir + '\\..'
         self.version = ''
 
     def setup(self, argv, parser=None):