Gaucheにc-wrapperをインストールしよう。
gosh> (use c-wrapper) *** ERROR: Compile Error: failed to link "ffi" dynamically: /usr/local/lib/gauche/site/0.8.7/i686-pc-linux-gnu/ffi.so: cannot restore segment prot after reloc: Permission denied
gosh> (use c-wrapper) *** ERROR: Compile Error: failed to link "ffi" dynamically: /usr/local/lib/gauche/site/0.8.7/i686-pc-linux-gnu/ffi.so: cannot restore segment prot after reloc: Permission denied