$ gcc -o simple simple.c `pkg-config --libs --cflags gtk+-2.0` $ ./simple.exe The window fails to maximize on startup I've found this out when using gnome terminator on cygwin, which fails to maximize on startup, and strangely is only able to maximize when opening up a new tab My setup: Windows 7 professional x64 $ uname -r 1.7.17(0.262/5/3) Censored parts of cygcheck for privacy reasons