Mingw: Fix the instructions to actually work

Also provide a autogen.sh file to work around a bug of msys autoreconf.

README.windows.txt

@@ -10,28 +10,25 @@ You can build on Windows using either:
 * MinGW and MSYS
 	plus DXSDK 9 (if you want DirectX support)
 
-NoNetwork
-=========
-
-If you are using the public source package, will be able to build
-the "NoNetwork" configurations only.
-
 
 Notes for MinGW
 ===============
 
-You need gcc, g++, mingw-runtime, w32api, msys, msyscore, autoconf, automake, and any packages needed by these.
+You need gcc, g++, mingw-runtime, w32api, msys, msyscore, autoconf, automake,
-These versions are known to work, though newer versions are probably also good.
+and any packages needed by these. The versions listed below are known to work,
+though newer versions are probably also good.
 
 http://sourceforge.net/project/downloading.php?group_id=200665&filename=tdm-mingw-1.905.0-webdl.exe&a=64029035
 (from http://sourceforge.net/project/showfiles.php?group_id=200665&package_id=238465)
 (see also http://www.tdragon.net/recentgcc/)
-- The default options work. Use an installation path without spaces to be on the save side.
+- The default options work. Use an installation path without spaces to be on
+  the save side.
 
 http://sourceforge.net/project/downloading.php?group_id=2435&filename=MSYS-1.0.11-20090120-dll.tar.gz&a=78351117
 http://sourceforge.net/project/downloading.php?group_id=2435&filename=msysCORE-1.0.11-20080826.tar.gz&a=60784616
 (from http://sourceforge.net/project/showfiles.php?group_id=2435&package_id=24963)
-- extract these into the same directory as installed above, merging the directory contents
+- extract these into the same directory as installed above, merging the
+  directory contents
 - create a shortcut to msys.bat
 
 http://sourceforge.net/project/downloading.php?group_id=2435&filename=perl-5.6.1-MSYS-1.0.11-1.tar.bz2&a=91743036
@@ -41,11 +38,14 @@ http://sourceforge.net/project/downloading.php?group_id=2435&filename=automake1.
 http://sourceforge.net/project/downloading.php?group_id=2435&filename=autoconf-4-1-bin.tar.bz2&a=70428585
 http://sourceforge.net/project/downloading.php?group_id=2435&filename=automake-3-1-bin.tar.bz2&a=12881354
 (from http://sourceforge.net/project/showfiles.php?group_id=2435&package_id=67879)
-- you need to extract these from the msys shell with tar (other methods won't work):
+- you need to extract these from the msys shell with tar (other methods won't
-  cd /
+  work). This assumes that the archives are in C:\Path\To\Downloads\, adjust
-  tar -xjf /path/to/downloads/*.bz2
+  the command as necessary:
-
+    cd /
-TODO: Various libraries are also needed
+    for f in /c/Path/To/Downloads/*.bz2; do tar -xjf $f; done && echo done
+ 
+Get the library package from openclonk.org and unpack it into the same
+directory as the other archives.
 
 If you want DirectX support, get a DirectX 9 SDK from Microsoft. Copy the
 contents of its include dir to the include dir of your MinGW installation,
@@ -53,7 +53,7 @@ and pass --with-directx to configure below.
 
 Start msys, cd to this directory, and execute:
 
-  autoconf && automake -a && ./configure && make
+    ./autogen.sh && ./configure && make
 
 To use g++ version 4.3 or newer, you need to pass CXX='g++ -std=gnu++0x'
 to configure. g++ version 4.2 is not able to compile Clonk.
@@ -67,8 +67,8 @@ If you want to separate the source directory and the output files, you can call
 configure from another directory. You can call configure by it's relative path,
 but using the full path helps gdb find the source files. Example:
 
-  mkdir build
+    mkdir build
-  cd build
+    cd build
-  /path/to/clonksource/configure --with-directx CXXFLAGS='-Os'
+    /path/to/clonksource/configure --with-directx CXXFLAGS='-Os'
-  make
+    make
 

autogen.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+aclocal -I autotools --install
+autoheader
+autoconf
+automake -a
+