Sunday, June 28, 2009

Compiling win32 binaries on linux

Old habits are hard to be dropped.

As a long term linux user I fell much more comfortable using my old emacs text editor with a good old "green on black" Xterm terminal console window.

So we have some legacy code here on my current job, those which must run also on windows. I was making some improvements on it, porting to use wx-widgets, compiling and using it on linux. But some windows users started to want those improvements on their widows versions. As the only WX programmer around, I was the only person able to compile the windows version. As I think future improvements would also be wanted by the windows users, I decided to deploy a windows wxDevCPP installation on wine on my linux workstation.

Well the first steps are simple:
  1. First get a wx-DevCPP installation executable on
  2. Install it using wine
  3. Open your .dev files on wxDev
  4. Build it
Now you have a Makefile.win, which can be used to directly compile win32 binaries.
A batch file could also be written to make things easy:
compile.bat
@echo off
set PATH=%PATH%;C:\Program Files\Dev-Cpp\bin
c:\Program Files\Dev-Cpp\bin\mingw32-make -f Makefile.win clean
c:\Program Files\Dev-Cpp\bin\mingw32-make -f Makefile.win

The command "wine cmd" can be used to enter on a windows command line console. In this console one just need to call the batch file (compile.bat).
A special win tag can be added to the linux Makefile, so one can use a make win directly from the linux console:
win:
wineconsole --backend=curses compile.bat
And that is it, now to build a linux binary one just need to type make, and for a windows binary, make win.
This procedure is suitable for small projects, I haven't tested with big projects.

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