lddgrep.pl: A useful tool for LFS/BLFS

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http://www.linuxquestions.org – The thread started by Lennie earlier today about -lfuse, which has been solved, reminded me of a tool I wrote back in the mid-90's when Linux was moving to ELF from a.out. Over the years, it's been a handy utility to track down problems involving shared libraries, especially when the SONAME changes and some files are still linked to the older version. It's in Perl and thus is portable to any system with the Perl interpreter and the ldd command. I use it not only on Linux but also on FreeBSD and Solaris to help in troubleshooting shared library mishaps -- known in the Windows world as "DL (HowTos)