 - You need PSPSDK and Oslib (I used Oslib Mod 1.1.1).
 - Add these two lines in ccc.h after the "#define oslCccCodetoUCS2 cccCodetoUCS2" line to avoid compiling errors:

#define oslCccStrlenUCS2 cccStrlenUCS2
#define oslCccStrlenSJIS cccStrlenSJIS

 - Remember to use command make clean before compiling. Especially if you modify the main.h