Building MINGW-w64

Setting up the build environment

• Download cygwin setup from here: [1]
• Run the installer and select the target directory. Choose something short and without spaces, like c:\cygwin\
• Add the following components:
  • Devel:
    • binutils
    • bison
    • flex
    • gcc4-core
    • gcc4-g++
    • make (3.81 or newer)
  • Libs:
    • gmp
    • libgmp-devel
    • libgmp3
    • libgmpxx4
    • libiconv
    • libmpfr-devel
    • libmpfr1
    • mpfr

Building

Building binutils

Start the cygwin shell. you should be in a folder like /home/YourName. If YourName is a path that has a space in it, I suggest to use a different one.

Now create a build directory and a subdirectory for binutils:

mkdir build
cd build
mkdir binutils
cd binutils

From the build directory run the binutils configure script:

../../src/binutils-2.20/configure --target=x86_64-w64-mingw32 --enable-targets=x86_64-w64-mingw32,i686-w64-mingw32
  --with-sysroot=/RosBE64  --prefix=/RosBE64

Now build the whole stuff.

make

Finally install it into the designated directory.

make install

Building Mingw-w64 header set

Copy the mingw-w64/include directory to /RosBE64/x86_64-w64-mingw32

Create a symlink for gcc.

ln -s /RosBE64/x86_64-w64-mingw32 /RosBE64/mingw'

If the /RosBE64/x86_64-w64-mingw32/lib directory doesn't exist yet, create it:

mkdir  /RosBE64/x86_64-w64-mingw32/lib

Create symlink for lib directory, too:

ln -s /RosBE64/x86_64-w64-mingw32/lib /RosBE64/x86_64-w64-mingw32/lib64

Building gcc

Emter into the build directory:

cd ..
mkdir gcc
cd gcc

Now run the configure script:

../../src/gcc-4.4.3/configure --target=x86_64-w64-mingw32 --prefix=/RosBE64 --with-sysroot=/RosBE64 
 --enable-languages=c,c++

Compile

make

And install

make install