This is Widelands Version build-20 (Release)
Set home directory: /home/purumi/.widelands
There's no configuration file, using default values.
Adding directory: /usr/share/games/widelands/data
selected language: (system language)
using locale ko_KR.UTF-8
Graphics: Try to set Videomode 800x600
glewInit returns 1
Your OpenGL installation must be __very__ broken. Missing GL version

Caught exception (of type '10WException') in outermost handler!
The exception said: [/build/widelands-p0nwvP/widelands-20/src/graphic/gl/initialize.cc:138] glewInit returns 1: Broken OpenGL installation.

This should not happen. Please file a bug report on version build-20(Release).
and remember to specify your operating system.