***** aclocal *****
***** PWD: /Users/tetsushi/G2/var/tmp/portage/sci-mathematics/4ti2-1.6.2/work/4ti2-1.6.2/swig
***** aclocal -I ../m4

autom4te-2.69: ../m4/ltoptions.m4: no such file or directory
aclocal-1.14: error: echo failed with exit status: 1