Use JINJA_FILE_SEARCHPATH variable so the fonts will also be found when built as a library.

SModule

@@ -3,6 +3,7 @@ Import('env')
 
 public_dir = env.Dir('public')
 env.Append(CPPPATH = [public_dir])
+env.Append(JINJA_FILE_SEARCHPATH = [env.Dir('.')])
 if env['BUILD_TYPE'] in ('release', 'release_debug', 'profile'):
     env.Append(CPPDEFINES = ['RAID_RELEASE'])
 env = env.Module('private/raid/SModule')