[왕초보] HP-UX 포팅에 대해 질문하고 싶습니다.

회사에서 HP-UX 서버에 포팅을 하게 되었습니다.
근데 처음 해보게 되는 일이라 그런지 너무 막히는 점이 많아 몇가지 질문 드립니다.

1. opencv를 HP-UX로 포팅하는 중인데,
컴파일을 하려면 c++11 을 지원하는 gcc가 필요합니다.
근데 찾아 보니 gcc 4.2.3. 버전이 나오는데, 이 버전은 c++11을 지원하지 않습니다.
혹시 도움받을 링크가 있을까요 ?

2. HP-UX 에서 autogen.sh 를 실행 시키면 에러가 뜹니다.
필요한 dependency는 이미 밑의 링크에서 전부 다 다운 받았습니다.

http://hpux.connect.org.uk/hppd/packages.html

뜨는 에러는 이렇습니다.

$ ./autogen.sh
Running aclocal
Running /usr/local/bin/libtoolize
/usr/local/bin/libtoolize[406]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[2513]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[2513]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[9]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[19]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[677]: /usr/local/bin/sed: not found.
: putting auxiliary files in '.'.
: copying file './ltmain.sh'
/usr/local/bin/libtoolize[3734]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[406]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[2513]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[2513]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[9]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[19]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[18]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[15]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[16]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[15]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[16]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[15]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[16]: /usr/local/bin/sed: not found.
/usr/local/bin/libtoolize[19]: /usr/local/bin/sed: not found.
: warning: no serial number in '/usr/local/share/libtool/build-aux/ltmain.sh', not copying.
/usr/local/bin/libtoolize[3734]: /usr/local/bin/sed: not found.
Running autoheader
Running automake --add-missing --copy
configure.ac:312: error: required file 'config/ltmain.sh' not found

Something went wrong, bailing out!

부디 바쁘시더라도 초보에게 한줄기 빛을 내려주시면 감사하겠습니다.