doc: update windows doc to reflect changes in configure.ac

doc/windows-build.txt

@@ -169,7 +169,7 @@ Extract the share\git-core folder and place it into \MinGW\share.
 After the previous step you should have a folder called \MinGW\share\git-core.
 To test if it is working, open a MinGW shell and type the following:
   git config -–global core.autocrlf false (note: one time run only)
-  git clone git://github.com/ckolivas/sgminer.git
+  git clone git://github.com/veox/sgminer.git
 
 If you simply just want to update the source after you have already cloned, type:
   git pull
@@ -191,65 +191,13 @@ From now on when your current working directory is the sgminer source directory
 You can simply type "adl.sh" and it will place the ADL header files into place
 For you. Make sure you never remove the ADL_SDK folder from your home folder.
 
-**************************************************************************************
-* Optional - Install libusb if you need auto USB device detection; required for Ztex *
-**************************************************************************************
-Go to this url ==> http://git.libusb.org/?p=libusb.git;a=snapshot;h=master;sf=zip
-save the file to your local storage. Open the file and copy the libusb* folder to
-\MinGW\msys\1.0\home\(your user directory/folder).
-Or if you do not want to download the file directly and would like to use git then
-Type the following from the MSYS shell in your home folder.
-git clone git://git.libusb.org/libusb.git
-
-Run the MinGW MSYS shell
-(Start Icon/keyboard key ==> All Programs ==> MinGW ==> MinGW Shell).
-Change the working directory to your libusb project folder.
-Example: cd libusb-something [Enter Key] if you are unsure then type "ls -la"
-Another way is to type "cd libusb" and then press the tab key; It will auto fill.
-Type the lines below one at a time. Look for problems after each one before going on
-to the next.
-
-./autogen.sh --disable-debug-log --prefix=/MinGW
-make
-make install
-
-You may now exit the MSYS shell.
-Ctrl-D or typing "logout" and pressing the enter key should get you out of the
-window.
-
-You will have to copy "libusb-1.0.dll" to your working sgminer binary directory.
-You will find "libusb-1.0.dll" in the \MinGW\bin directory/folder.
-
-Use this method if libusb does not work for you on Ztex. Once someone lets us know
-Libusb works instead of libusbx then we will remove the section below this line.
-Run the MSYS shell and change into the libusb folder as above.
-Type ==> make uninstall
-Go to this url ==> http://libusbx.org/
-Click on the "Downloads" tab.
-Click on "releases".
-Click on the latest version. I downloaded 1.0.14; yours may be newer.
-Do not download from the link that says "Looking for the latest version?".
-Click on "Windows"
-Click on the file and download it. I downloaded libusbx-1.0.12-win.7z.
-Extract the the following from the file and place in where directed.
-Copy libusb.h from include\libusbx-1.0 to \MinGW\include\libusb-1.0\libusb.h
-Copy contents of MinGW32\static \MinGW\lib
-Copy contents of MinGW32\dll to \MinGW\lib
-You will have to copy "libusb-1.0.dll" to your working sgminer binary directory.
-
 **************************************************************************************
 * Some ./configure options                                                           *
 **************************************************************************************
---enable-cpumining      Build with cpu mining support(default disabled)
---disable-opencl        Override detection and disable building with opencl
+--enable-opencl         Enable support for GPU mining with opencl
 --disable-adl           Override detection and disable building with adl
---enable-bitforce       Compile support for BitForce FPGAs(default disabled)
---enable-icarus         Compile support for Icarus Board(default disabled)
---enable-modminer       Compile support for ModMiner FPGAs(default disabled)
---enable-ztex           Compile support for Ztex Board(default disabled)
---enable-scrypt         Compile support for scrypt litecoin mining (default disabled)
+--disable-libcurl       Disable building with libcurl for getwork and GBT support
 --without-curses        Compile support for curses TUI (default enabled)
---without-libudev       Autodetect FPGAs using libudev (default enabled)
 
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