Note (probably harmless): No library found for -ltidy It seems that you don't have libtidy installed. HTML::Tidy does no real work on its own. See the section "INSTALLING LIBTIDY" in Tidy.pm for a step-by-step walkthrough of building the lib. You can also refer to http://tidy.sourceforge.net/. If you do have libtidy installed, and I just haven't detected it, go ahead and try building. If HTML::Tidy builds and tests correctly, then please let Andy Lester know at bug-html-tidy@rt.cpan.org so that he can fix the library detection code. Checking if your kit is complete... Looks good Note (probably harmless): No library found for -ltidy Writing Makefile for HTML::Tidy cp lib/HTML/Tidy/Message.pm blib/lib/HTML/Tidy/Message.pm cp lib/HTML/Tidy.pm blib/lib/HTML/Tidy.pm /home/cpanrun/pa-risc1.1/build/5.8.2/bin/perl /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/typemap Tidy.xs > Tidy.xsc && mv Tidy.xsc Tidy.c cc -c -I. -I/usr/include/tidy -I/usr/local/include/tidy -I/sw/include/tidy -D_POSIX_C_SOURCE=199506L -D_REENTRANT -Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings -DNO_HASH_SEED -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fast +Onolimit +Opromote_indirect_calls +DAportable +DS2.0 -DVERSION=\"1.08\" -DXS_VERSION=\"1.08\" +Z "-I/home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/PA-RISC1.1-thread-multi/CORE" Tidy.c cpp: "Tidy.xs", line 5: error 4036: Can't open include file 'tidy.h'. cpp: "Tidy.xs", line 6: error 4036: Can't open include file 'buffio.h'. make: *** [Tidy.o] Error 1