bash: ./configure: /bin/sh^M: bad interpreter: No such file or directory

configure를 하려는데 저런 뜬금없는 에러가 발생을 했다. (libjpeg 빌드 관련)
한번 검색을 해보니 CR/LF 문제로 인해서

dos2unix를 유틸리티로 CR/LF 변환을 해주어야 한다고 한다.

[링크 : http://www.snort.org/docs/faq/1Q05/node124.html]

$ dos2unix --help dos2unix Copyright (c) 1994-1995 Benjamin Lin          Copyright (c) 1998      Bernd Johannes Wuebben (Version 3.0)          Copyright (c) 1998      Christian Wurll (Version 3.1) Usage: dos2unix [-hkqV] [-c convmode] [-o file ...] [-n infile outfile ...]  -h --help        give this help  -k --keepdate    keep output file date  -q --quiet       quiet mode, suppress all warnings                   always on in stdin->stdout mode  -V --version     display version number  -c --convmode    conversion mode  convmode         ASCII, 7bit, ISO, Mac, default to ASCII  -l --newline     add additional newline in all but Mac convmode  -o --oldfile     write to old file  file ...         files to convert in old file mode  -n --newfile     write to new file  infile           original file in new file mode  outfile          output file in new file mode