Monday, December 26, 2011

Compiling MLDonkey for Windows

MLDonkey is a nifty program that helps you share files with other people. MLDonkey works on Linux, but the Windows version I downloaded didn't work on my computer running Windows XP. So I compiled MLDonkey using Cygwin's mingw64-i686-gcc-* compiler toolchain. Here I show how I did it. Part of the information below is taken from the MLDonkey Windows guide.


  1. Cygwin Setup

    First, install Cygwin using the Cygwin installer(setup.exe). I set the Root directory to C:\Cygwin and chose to install the following packages in addition to base packages.



    • bison

    • gettext-devel

    • libtool

    • make

    • mingw64-i686-binutils

    • mingw64-i686-gcc-core

    • mingw64-i686-gcc-fortran

    • mingw64-i686-gcc-g++

    • patch

    • pkg-config



  2. Open the file C:\Cygwin\etc\fstab in a text editor and append the following line.


    /usr/i686-w64-mingw32/sys-root/mingw /mingw none bind


    Set the HOME variable.



    Start the Cygwin terminal and type the following commands to set up Cygwin for Windows compilation.



    cp /usr/bin/i686-w64-mingw32-g++.exe /usr/i686-w64-mingw32/bin/g++.exe
    cp /usr/bin/i686-w64-mingw32-gcc.exe /usr/i686-w64-mingw32/bin/gcc.exe
    cp /usr/bin/i686-w64-mingw32-cpp.exe /usr/i686-w64-mingw32/bin/cpp.exe
    export PATH=/mingw/bin:/usr/i686-w64-mingw32/bin:/usr/local/bin:/usr/bin:/usr/lib/gcc/i686-w64-mingw32/4.5.3
    export CC=/usr/bin/i686-w64-mingw32-gcc.exe
    export PKG_CONFIG_PATH=/mingw/lib/pkgconfig

  3. Compile zlib and bzip2

    Download the zlib source (zlib-1.2.7.tar.gz) and unpack it.


    tar xzvf zlib-1.2.7.tar.gz
    cd zlib-1.2.7

    Compile and install zlib.


    make -f win32/Makefile.gcc
    cp -iv zlib1.dll /mingw/bin
    cp -iv zconf.h zlib.h /mingw/include
    cp -iv libz.a /mingw/lib
    cp -iv libz.dll.a /mingw/lib

    Now download bzip2 source from bzip2.org and unpack it.


    tar xzvf bzip2-1.0.6.tar.gz
    cd bzip2-1.0.6

    Change line 78 of bzlib.h to read:


    #if defined(_WIN32) && !defined(__MINGW32__)

    Compile and install bzip2.


    make
    cp bzlib.h /mingw/include/
    cp libbz2.a /mingw/lib



  4. libiconv

    Download and compile libiconv:


    tar xzvf libiconv-1.14.tar.gz
    cd libiconv-1.14
    ./configure --build=i686-w64-mingw32 --prefix=/mingw --enable-static
    make
    make install



  5. JPEG, PNG & Freetype

    Compile JPEG, libPNG and Freetype in the following way:


    ./configure --build=i686-w64-mingw32 --prefix=/mingw
    make
    make install


  6. GD Graphics Library

    Now get the libgd source, unpack and configure:


    ./configure --build=i686-w64-mingw32 --prefix=/mingw LIBS="-lbz2 -ljpeg -lws2_32 -liconv"

    Once Makefile is generated, change line 233 to read:


    DEFS = -DHAVE_CONFIG_H -DBGDWIN32

    Also fix gd.h near line 25:


    --- ./gd.h      Sat Oct 30 12:54:58 2004
    +++ ./gd.h Sun Jan 05 17:56:09 2006
    @@ -24,7 +24,7 @@
    #endif /* WIN32 */

    #ifdef NONDLL
    -#define BGD_DECLARE(rt) extern rt
    +#define BGD_DECLARE(rt) extern rt _stdcall
    #else
    #ifdef BGDWIN32
    #define BGD_DECLARE(rt) __declspec(dllexport) rt __stdcall

    Then, build and install gdlib:


    make install


    To create a DLL file called libgd-2.dll, run the following commands:



    mkdir /tmp/gdlib
    cd /tmp/gdlib
    ar x /mingw/lib/libgd.a
    gcc -shared -o /mingw/bin/libgd-2.dll -Wl,--out-implib,libgd.dll.a *.o -L/mingw/lib -lz -lbz2 -ljpeg -lpng -liconv -lfreetype




  7. wget

    Build wget as shown in this post. If you don't want to compile wget yourself, get the executable (wget.exe) somewhere, and put it in the same folder as mlnet.exe later.

  8. regex and libmagic

    Download regex-0.12.tar.gz and compile regex as required by libmagic.


    gcc -DSTDC_HEADERS -DHAVE_STRING_H=1 -I. -c regex.c
    ar ru libregex.a regex.o
    cp -iv libregex.a /mingw/lib
    cp -iv libregex.a /mingw/lib/libgnurx.a
    cp -iv regex.h /mingw/include

    Get the source tarball of open-source file command. Configure as follows:


    ./configure --build=i686-w64-mingw32 --prefix=/mingw

    Open config.h and add the following lines:


    #define WIN32 1
    #define MAGIC "magic"

    Then compile:


    make && make install


  9. OCaml

    You need flexdll (flexdll-0.27.zip) to build OCaml. Extract it to /mingw/bin. Then, download the latest OCaml source (3.12.1). Patch ocaml with this Unicode patch.


    tar xzvf ocaml-3.12.1.tar.gz
    cd ocaml-3.12.1
    patch -p1 -l < ../ocaml-3.12.1-unicode.patch


    In the config subfolder, copy Makefile.mingw to Makefile.



    cp config/m-nt.h config/m.h 
    cp config/s-nt.h config/s.h
    cp config/Makefile.mingw config/Makefile


    Begin compiling OCaml.


    make -f Makefile.nt world
    make -f Makefile.nt opt
    make -f Makefile.nt opt.opt
    make -f Makefile.nt install


    Set up OCaml environment variables:


    export CAMLLIB=/mingw/lib
    export OCAMLLIB=/mingw/lib
    export CAMLP4LIB=/mingw/lib/camlp4



  10. Build MLDonkey

    Get the MLDonkey source, then unpack and configure it.


    tar xjvf mldonkey-3.1.0.tar.bz2
    cd mldonkey-3.1.0
    ./configure --build=i686-w64-mingw32 --prefix=/mingw --disable-fasttrack


    To link with the static GD library, append -DNONDLL to the CPPFLAG line of config/Makefile.config



    CPPFLAGS=-I/mingw/include -DNONDLL


    Start compilation.


    export OCAML_SRC=~/ocaml-3.12.1
    cp -iv /mingw/lib/stublibs/dllunix.dll .
    make depend
    make mlnet.static
    strip mlnet.static
    mv mlnet.static mlnet.exe

    If the final linking stage fails, here is the command I used to produce mlnet.exe:


    g++ -g0 -O3 -o mlnet.exe -Wl,--subsystem,windows -L/lib/gcc/i686-w64-mingw32/4.5.3 -L/mingw/lib /tmp/camlstartup00193d.s build/flexdll_mingw.o /mingw/lib/std_exit.o src/daemon/common/commonMain.o build/driver.a build/core.a build/client.a build/common.a build/magic.a build/bitstring.a build/cdk.a build/extlib.a /mingw/lib/nums.a /mingw/lib/str.a /mingw/lib/unix.a /mingw/lib/bigarray.a /mingw/lib/stdlib.a src/utils/cdk/gdstubs.o src/networks/direct_connect/che3_c.o src/utils/lib/CryptoPP.o src/utils/lib/CryptoPP_stubs.o src/utils/net/upnp_stubs.o src/daemon/common/commonHasher_c.o src/utils/lib/magiclib_stub.o src/utils/bitstring/bitstring_c.o src/utils/cdk/zlibstubs.o src/utils/cdk/heap_c.o src/config/mingw/os_stubs_c.o src/utils/lib/fst_hash.o src/utils/lib/md4_comp.o src/utils/lib/md4_c.o src/utils/lib/charsetstubs.o src/utils/lib/md5_c.o src/utils/lib/sha1_c.o src/utils/lib/tiger.o src/utils/lib/stubs_c.o -lnums -lcamlstr -lunix -lbigarray -lgdi32 -luser32 -ladvapi32 -limm32 -lshell32 -lole32 resfile.o -lpthread -lmagic -lgd -ljpeg -lfreetype -lpng -lz -lbz2 -lws2_32 -lshlwapi /mingw/lib/libasmrun.a /mingw/lib/libcharset.dll.a /mingw/lib/libiconv.dll.a


    Optonally, compress the executable with upx.

    upx --best --strip-relocs=0 mlnet.exe




  11. Here's my mldonkey builds.




Tuesday, December 20, 2011

To build wget.exe with MinGW

wget is a useful command-line downloader. To build wget for the Windows platform, first install MinGW. Then, compile zlib, openssl and wget in that order. To compile zlib:



make -f win32/Makefile.gcc
cp -iv zlib1.dll /mingw/bin
cp -iv zconf.h zlib.h /mingw/include
cp -iv libz.a /mingw/lib
cp -iv libz.dll.a /mingw/lib


To compile openssl:



./Configure -DHAVE_STRUCT_TIMESPEC -DPTW32_STATIC_LIB -L/mingw/lib -lz -lpthreadGC2 -lws2_32 --prefix=/mingw threads zlib mingw
make
make test
make install


Now, build wget



./configure --prefix=/mingw --enable-threads=win32 --disable-nls --with-ssl=openssl
make
make install

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