Building MINGW-w64

... for idiots. This guide is provided for those who have no clue how to compile gcc, but still want to do it. It's a reference, just follow the steps and you get what you want. There's no support for special wishes ;-)

Setting up the build environment

Download and install MSYS. You will need the following packages:

• msysCORE-1.0.14-1-msys-1.0.14-bin.tar.lzma
• coreutils-5.97-2-msys-1.0.11-bin.tar.lzma
• bash-3.1.17-2-msys-1.0.11-bin.tar.lzma
• bison-2.4.1-1-msys-1.0.11-bin.tar.lzma
• flex-2.5.35-1-msys-1.0.11-bin.tar.lzma
• gawk-3.1.7-1-msys-1.0.11-bin.tar.lzma
• grep-2.5.4-1-msys-1.0.11-bin.tar.lzma
• sed-4.2.1-1-msys-1.0.11-bin.tar.lzma
• make-3.81-2-msys-1.0.11-bin.tar.lzma
• m4-1.4.13-1-msys-1.0.11-bin.tar.lzma
• gcc-core-3.4.5-20060117-3.tar.gz
• gcc-g++-3.4.5-20060117-3.tar.gz
• binutils-2.20.1-2-mingw32-bin.tar.gz
• mingwrt-3.18-mingw32-dev.tar.gz
• w32api-3.14-mingw32-dev.tar.gz
• libregex-1.20090805-1-msys-1.0.11-dll-1.tar.lzma
• tar-1.22-1-msys-1.0.11-bin.tar.lzma
• diffutils-2.8.7.20071206cvs-2-msys-1.0.11-bin.tar.lzma
• gettext-0.17-1-msys-1.0.11-dev.tar.lzma
• libiconv-1.13.1-1-mingw32-dev.tar.lzma

Download all packages and extract them into c:\MSYS (or similar). You can unpack the .tar.lzma files using the latest version of 7zip.

Extract libiconv-1.13.1-1-mingw32-dev.tar.lzma into the mingw subfolder of the MSYS root (Why? Because!)

Getting the sources

Download all the sources into subfolders of /home/YourName/src

• binutils (version 2.20.51 or newer) -> home/YourName/src/binutils
• gcc-core (version 4.5.0 or newer) -> home/YourName/src/gcc
• gcc-g++ (version 4.5.0 or newer) -> home/YourName/src/gcc
• mingw-w64 [1] -> home/YourName/src/mingw-w64

• MPFR (version 2.4.2) -> home/YourName/src/mpfr
• GMP (version 5.0.1) -> home/YourName/src/gmp
• MPC (version 0.8.1) -> home/YourName/src/mpc

Note

Copy the src/mingw-w64/mingw-w64-headers/include directory to /RosBE64/mingw and to /RosBE64/x86_64-w64-mingw32 for 64 bit or /RosBE64/i686-w64-mingw32 for 32 bit.

Patching the sources

You need to apply 2 patches (Kudos go to Kai Tietz from mingw-w64):

• Patch for binutils (Obsolete with recent Nightlies)
• Patch for gcc (Obsolete with gcc 4.6.0 Tree)

Building

Optionally set buildflags:

export CFLAGS="-O2 -pipe -fomit-frame-pointer"
export CXXFLAGS="-O2 -pipe -fomit-frame-pointer"
export LDFLAGS=-s

Building GMP

Create a build subdirectory for gmp:

cd build
mkdir gmp
cd gmp

From the build directory run the gmp configure script:

64 bit:

../../src/gmp/configure --prefix=/support --host=x86_64-w64-mingw32 --build=i686-w64-mingw32 --disable-shared

32 bit:

../../src/gmp/configure --prefix=/support --host=i686-w64-mingw32 --build=i686-w64-mingw32 --disable-shared

Now build the whole stuff.

make

Finally install it into the designated directory.

make install

Building MPFR

Create a build subdirectory for mpfr:

cd build
mkdir mpfr
cd mpfr

From the build directory run the mpfr configure script:

64 bit:

../../src/mpfr/configure --prefix=/support --host=x86_64-w64-mingw32 --build=i686-w64-mingw32 --with-gmp=/support --disable-shared

32 bit:

../../src/mpfr/configure --prefix=/support --host=i686-w64-mingw32 --build=i686-w64-mingw32 --with-gmp=/support --disable-shared

Now build the whole stuff.

make

Finally install it into the designated directory.

make install

Building MPC

Create a build subdirectory for mpc:

cd build
mkdir mpc
cd mpc

From the build directory run the mpc configure script:

64 bit:

../../src/mpc/configure --prefix=/support --host=x86_64-w64-mingw32 --build=i686-w64-mingw32 --with-gmp=/support --with-mpfr=/support
 --disable-shared

32 bit:

../../src/mpc/configure --prefix=/support --host=i686-w64-mingw32 --build=i686-w64-mingw32 --with-gmp=/support --with-mpfr=/support
 --disable-shared

Now build the whole stuff.

make

Finally install it into the designated directory.

make install

Building binutils

Create a build subdirectory for binutils:

cd build
mkdir binutils
cd binutils

From the build directory run the binutils configure script:

64 bit:

../../src/binutils/configure --prefix=/RosBE64 --target=x86_64-w64-mingw32 --disable-nls --disable-werror --disable-multilib
 --with-sysroot=/RosBE64

32 bit:

../../src/binutils/configure --prefix=/RosBE64 --host=i686-w64-mingw32 --build=i686-w64-mingw32 --target=i686-w64-mingw32
 --disable-nls --disable-werror --disable-multilib --with-sysroot=/RosBE64

Now build the whole stuff.

make

Finally install it into the designated directory.

make install

Building gcc-core

Emter into the build directory:

cd ..
mkdir gcc
cd gcc

Now run the configure script:

64 bit:

../../src/gcc/configure --prefix=/RosBE64 --target=x86_64-w64-mingw32 --with-gmp=/support --with-mpfr=/support --with-mpc=/support
 --with-pkgversion="RosBE-Windows" --enable-languages=c,c++ --enable-checking=release --enable-version-specific-runtime-libs
 --disable-win32-registry --disable-shared --disable-nls --disable-werror --disable-multilib --with-sysroot=/RosBE64

32 bit:

../../src/gcc/configure --prefix=/RosBE64 --host=i686-w64-mingw32 --build=i686-w64-mingw32 --target=i686-w64-mingw32
 --with-gmp=/support --with-mpfr=/support --with-mpc=/support --with-pkgversion="RosBE-Windows" --enable-languages=c,c++
 --enable-checking=release --enable-version-specific-runtime-libs --disable-win32-registry --disable-shared --disable-nls
 --disable-werror --disable-multilib --with-sysroot=/RosBE64

Compile the gcc-core

make all-gcc

And install it

make install-gcc

Finally add it to the PATH variable.

PATH=$PATH:/RosBE64/bin ; export PATH

Building the crt

Create a build directory.

cd ..
mkdir mingw-w64-crt
cd mingw-w64-crt

Run the configure script

64 bit:

../../src/mingw-w64/mingw-w64-crt/configure --prefix=/RosBE64 --host=x86_64-w64-mingw32 --build=i686-w64-mingw32 --with-sysroot=/RosBE64

32 bit:

../../src/mingw-w64/mingw-w64-crt/configure --prefix=/RosBE64 --host=i686-w64-mingw32 --build=i686-w64-mingw32 --with-sysroot=/RosBE64

Compile

make

And install

make install

Copy the /RosBE64/x86_64-w64-mingw32 (64 bit) or /RosBE64/i686-w64-mingw32 (32 bit) directory to /RosBE64/mingw.

Building the rest of gcc

Enter into the gcc build directory.

cd ..
cd gcc

And compile the rest.

make
make install

Common errors

When compiling crt:

configure: error: Please check if the mingw-w64 header set and the build/host option are set properly.

• Check if you have copied the mingw-headers/include directory to both /RosBE64/x86_64-w64-mingw32 and /RosBE64/mingw
• Check if you have set the PATH variable to the new compiler correctly
• Check if you have installed the new compiler correctly ("make install-gcc")

(--enable-leading-mingw64-underscores)