1. Clone wallet sources

git clone https://github.com/quanizzgfx/crazycoinwallet.git

2. Modify CryptoNoteWallet.cmake

set(CN_PROJECT_NAME "crazycoin")
set(CN_CURRENCY_DISPLAY_NAME "CrazyCoin")
set(CN_CURRENCY_TICKER "CZCO")

3. Set symbolic link to coin sources at the same level as src. For example:

ln -s ../crazycoin cryptonote

Alternative way is to create git submodule:

git submodule add https://github.com/quanizzgfx/crazycoin.git cryptonote

Replace URL with git remote repository of your coin.

4. Build

mkdir build && cd build && cmake .. && make