Checking if your kit is complete... Looks good Note (probably harmless): No library found for -lsasl2 Writing Makefile for Authen::SASL::Cyrus cp Cyrus.pm blib/lib/Authen/SASL/Cyrus.pm cp Cyrus.pod blib/lib/Authen/SASL/Cyrus.pod cp lib/Authen/SASL/Cyrus/Security.pm blib/lib/Authen/SASL/Cyrus/Security.pm /home/cpanrun/build/5.6.1/bin/perl -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi -I/home/cpanrun/build/5.6.1/lib/5.6.1 /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap Cyrus.xs > Cyrus.xsc && mv Cyrus.xsc Cyrus.c Please specify prototyping behavior for Cyrus.xs (see perlxs manual) gcc -c -I/usr/local/include/sasl -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DVERSION=\"0.12\" -DXS_VERSION=\"0.12\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE -DSASL2 -g Cyrus.c Cyrus.xs:17: sasl/sasl.h: No such file or directory make: *** [Cyrus.o] Error 1