Make the message about wxUSE_GRAPHICS_CONTEXT a bit more informative

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41644 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/setup0.h

@@ -553,10 +553,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

include/wx/motif/setup0.h

@@ -552,10 +552,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

include/wx/msw/setup0.h

@@ -552,10 +552,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

include/wx/msw/wince/setup.h

@@ -552,10 +552,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

include/wx/os2/setup0.h

@@ -552,10 +552,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

include/wx/palmos/setup0.h

@@ -552,10 +552,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

include/wx/setup_inc.h

@@ -548,10 +548,16 @@
 // Enable the new wxGraphicsPath and wxGraphicsContext classes for an advanced
 // 2D drawing API.  (Still somewhat experimental)
 //
+// Please note that on Windows you will need to link with gdiplus.lib (use
+// USE_GDIPLUS=1 for makefile builds) and distribute gdiplus.dll with your
+// application if you want it to be runnable on pre-XP systems.
+//
 // Default is 0
 //
 // Recommended setting: 1
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 // ----------------------------------------------------------------------------
 // Individual GUI controls

setup.h.in

@@ -294,7 +294,9 @@
 #define wxUSE_AUI       0
 
 
+#ifndef wxUSE_GRAPHICS_CONTEXT
 #define wxUSE_GRAPHICS_CONTEXT 0
+#endif
 
 
 #define wxUSE_CONTROLS     0