[pango/pango2-windows: 171/172] README.win32: Update Windows build information

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

commit e90b0c233e9e6693bb4317e8059ef603f5474ebe
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Sun Jun 19 10:55:14 2022 +0800

    README.win32: Update Windows build information
    
    There is no more FontConfig support for Windows for Pango2, and let
    people know they need DirectWrite support enabled in HarfBuzz and Cairo,
    which may not be enabled by default.
    
    Also let people know that if building HarfBuzz as a fallback as a part
    of building Pango2, Visual Studio 2017 or later is required to
    successfully build HarfBuzz.
    
    Note that HarfBuzz DLLs built with Visual Studio 2017 or later should be
    compatible with Pango built with Visual Studio 2015.

 README.win32 | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)
---
diff --git a/README.win32 b/README.win32
index 64579859..e4809404 100644
--- a/README.win32
+++ b/README.win32
@@ -1,17 +1,16 @@
 The Pango backends written for Win32 is pangowin32. Pangowin32 uses
-the Win32 GDI font API. GTK+ 2.8 and later on Win32 however actually
-uses the pangocairo backend (which then uses only small parts of
-pangowin32). Much of the GDI font API calls are in cairo.
-
-The pangoft2 backend was originally written with Win32 in mind, but
-its main use nowadays is on other platforms than Win32.
+the Win32 DirectWrite font API. GTK+ 2.8 and later on Win32 however
+actually uses the pangocairo backend (which then uses only small parts of
+pangowin32). Much of the DirectWrite font API calls are in cairo.
 
 To build Pango for Win32:
 
 You need to have gcc (mingw-w64) or Visual Studio 2015 or later, along with
-Python 3.6.x+ and Meson 0.55.3 at the time of writing.  If building
-the introspection files, you will also need to ensure that the Python
-release series and build architecture (i.e. Win32 (x86)/
+Python 3.6.x+ and Meson 0.55.3 at the time of writing. However, if you do not
+have HarfBuzz installed and are building it as part of building Pango, you will
+need to use Visual Studio 2017 (the latest 15.9.x release is recommended) or
+later. If building the introspection files, you will also need to ensure that
+the Python release series and build architecture (i.e. Win32 (x86)/
 x64 (amd64/x86-64) matches the Python release series and build
 architecture that was used to build GObject-Introspection.
 The Python interpreter executable directory must be in your PATH.
@@ -27,16 +26,12 @@ are currently not supported for any cross-builds.
 You will also need the following libraries installed with their headers
 and import libraries, and their DLLs, if applicable, needs to be found in
 %PATH%.  All of their required dependencies are required as well.  Their
-pkg-config files are needed on all builds unless marked with a *, where
-only their headers/import libraries are needed on Visual Studio:
+pkg-config files are needed on all builds.
 
 -GLib
 -Fribidi
--Cairo* (With Win32 support built in, and optionally FreeType and FontConfig
-         support for building PangoFT2.)
--HarfBuzz* (GLib support required, and FreeType2 if building PangoFT2)
--FreeType* (Optional, needed for PangoFT2)
--FontConfig* (Optional, needed for PangoFT2)
+-Cairo (With Win32+DirectWrite support built in, optionally libpng support)
+-HarfBuzz (GLib, GObject and DirectWrite support required)
 
 Please see meson.build to see what versions are needed for these dependencies.