Detailed Windows build instructions, using MinGW (64-bit):
   Install MinGW and the MSYS Developer Tool Kit (http://www.mingw.org/)
      * Choose C, C++ and MSys on install and select to have it update its libraries
      * Install into C:\MinGW
      * Add C:\MinGW\bin and c:\MinGW\msys\1.0 to your path
   Download MinGW64 from http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Automated%20Builds/
      * Choose mingw-w64-bin_i686-mingw_20111220.zip
      * Extract ZIP to C:\MinGW64
      * Add C:\MinGW64\bin to your path before C:\MinGW\bin
   Install libcurl devel (http://curl.haxx.se/download.html)
      * download curl-7.30.0.tar.gz from http://curl.haxx.se/download.html and put it in C:\deps\
      * launch an MSYS shell and enter the following commands (the configure step will take a long time!)
         cd /c/deps
         tar -xvzf curl-7.30.0.tar.gz
         cd curl-7.30.0
         ./configure --host=x86_64-w64-mingw32 –-prefix=/c/mingw64
         make
         make install
         cp /c/deps/curl-7.30.0/docs/libcurl/libcurl.m4 /c/mingw/share/aclocal/libcurl.m4
   Install pthreads
      * download pthreads-20100604.zip from http://sourceforge.net/projects/mingw-w64/files/External%20binary%20packages%20%28Win64%20hosted%29/pthreads/ and put it in C:\deps\
      * unzip the file to c:\deps\
      * In the mingw64 subdirectory is pthreads-w64.zip - extract the contents to C:\MinGW64
   Configure mingw path
      * create C:\MinGW\msys\1.0\etc\fstab with following configuration:
        c:/mingw		/mingw
   In the MSYS shell, navigate to the CPUminer source code direcctory
      * You will likely get higher hashrates by forcing the compiler to build the executable for your
        specific CPU architecture.  This is done by adding "-march=<value>" into the CFLAGS.  Those
        values can be found at http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86-64-Options.html#i386-and-x86-64-Options
           common choices for intel are : core2, corei7, corei7-avx
           common choices for AMD are : athlon-fx
                       or -msse2,-msse3,-msse4,-mavx ...
      * Execute the following (replacing the value of -march with the value for your CPU type)
         ./autogen.sh
         ./configure --host=x86_64-w64-mingw32 CFLAGS="-O3 -march=core2"
         make
   Strip minerd.exe
      * Execute the following:
         x86_64-w64-mingw32-strip minerd.exe
   Combine the executable with the dependencies
      * copy minerd.exe, C:\MinGW64\bin\libcurl-4.dll, and C:\MinGW64\bin\pthreadGC2-w64.dll to the same directory

For Win32 target hosts
   Prepare compilations
      * place mstcpip.h and _mingw_unicode.h in MinGW\include (they already exist in the MinGW installation tree)
   Configure Curl compiling with:
      * ./configure --host=i686-pc-mingw32 CPPFLAGS="-DWIN32 -DWIN32_LEAN_AND_MEAN" –-prefix=/c/mingw
   Clean previous compilations and execute same steps as Win64 targets
      * make clean
        make
        make install
        if not already done, as the file never changes: cp /c/deps/curl-7.30.0/docs/libcurl/libcurl.m4 /c/mingw/share/aclocal/libcurl.m4
   Add pthreads win32 package:
      * through the MinGW Installation manager
   Configure CPUMiner compiling with:
      * ./autogen.sh
        ./configure --host=i686-pc-mingw32 CPPFLAGS="-DWIN32 -D_WIN32 -DWIN32_LEAN_AND_MEAN" CFLAGS="-O2 -march=core2"
        (Note: only O2 optimization to avoid crash. core2 architecture ideal for Xeon processor)
   Clean previous compilations and Compile CPUMiner
      * make clean
        make
   Strip minerd.exe
      * mingw32-strip minerd.exe
   Combine the executable with the dependencies
      * copy minerd.exe, C:\MinGW\bin\libcurl-4.dll, C:\MinGW\bin\pthreadGC2.dll and C:\MinGW\bin\libgcc_s_dw2-1.dll to the same directory