The {{{colorgcc}}} perl script colorizes GCC output. This makes it easier to spot warnings and errors in long compiler outputs.

To install {{{colorgcc}}} in Haiku, execute the following commands in a shell:
{{{
cd /boot/develop/abi/x86/gcc2/tools/current/bin
wget http://dev.haiku-os.org/raw-attachment/wiki/DevelopmentTools/ColorGCC/colorgcc2.pl
chmod +x colorgcc2.pl
mv gcc gcc_real
mv g++ g++_real
ln -s colorgcc2.pl gcc
ln -s colorgcc2.pl g++

cd /boot/develop/abi/x86/gcc4/tools/current/bin
wget http://dev.haiku-os.org/raw-attachment/wiki/DevelopmentTools/ColorGCC/colorgcc4.pl
chmod +x colorgcc4.pl
mv gcc gcc_real
mv g++ g++_real
ln -s colorgcc4.pl gcc
ln -s colorgcc4.pl g++
}}}

The official colorgcc page: http://schlueters.de/colorgcc.html