ibus keymagic can not install on sabayon OS

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What steps will reproduce the problem?
1. - I change CFLAGs = "-g -O0" to 
CPPFLAGS="-I../../cross-platform/libkeymagic" at autogen.sh
2. ./autogen.sh --prefix=/usr
3. add comment(#) line 16233 to 16235 at configure file
4. ./configure
5. make

What is the expected output? What do you see instead?
 all-recursive
make[1]: Entering directory `/home/peace/Downloads/ibus-keymagic-1.0'
Making all in src
make[2]: Entering directory `/home/peace/Downloads/ibus-keymagic-1.0/src'
  CXX    ibus_engine_keymagic-main.o
g++: error: @IBUS_CPPFLAGS@: No such file or directory
make[2]: *** [ibus_engine_keymagic-main.o] Error 1
make[2]: Leaving directory `/home/peace/Downloads/ibus-keymagic-1.0/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/peace/Downloads/ibus-keymagic-1.0'
make: *** [all] Error 2

What version of the product are you using? On what operating system?
ibus-keymagic 1.0
Sabayon 13.04 KDE

Please provide any additional information below.

Original issue reported on code.google.com by nyeincha...@gmail.com on 30 Jun 2013 at 10:03