warning, not error, seems to work ok
bash-4.1$ autoreconf Useless use of /d modifier in transliteration operator at /home/jayk/share/automake-1.11/Automake/Wrap.pm line 58. bash-4.1$ automake --version Useless use of /d modifier in transliteration operator at /home/jayk/share/automake-1.11/Automake/Wrap.pm line 58. automake (GNU automake) 1.11 ... bash-4.1$ autoconf --version autoconf (GNU Autoconf) 2.67 ... sub tab_length($) { my ($txt) = @_; my $len = length ($txt); $len += 7 * ($txt =~ tr/\t/\t/d); # here return $len; } I guess the point is to count the characters, not change them, or something. bash-4.1$ uname -a OSF1 hostname V5.1 732 alpha alpha Tru64 bash-4.1$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/home/jayk/libexec/gcc/alphaev67-dec-osf5.1/4.5.0/lto-wrapper Target: alphaev67-dec-osf5.1 Configured with: /home/jayk/src/gcc-4.5.0/configure -disable-nls -prefix=/home/jayk Thread model: posix gcc version 4.5.0 (GCC) bash-4.1$ perl -v This is perl 5, version 12, subversion 1 (v5.12.1) built for alpha-dec_osf ... - Jay