Checking if your kit is complete... Looks good Writing Makefile for IO::Epoll cp lib/IO/Epoll.pm blib/lib/IO/Epoll.pm AutoSplitting blib/lib/IO/Epoll.pm (blib/lib/auto/IO/Epoll) /export/home/cpanrun/build/5.6.1/bin/perl -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi -I/export/home/cpanrun/build/5.6.1/lib/5.6.1 /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap Epoll.xs > Epoll.xsc && mv Epoll.xsc Epoll.c Please specify prototyping behavior for Epoll.xs (see perlxs manual) gcc -c -I. -DUSE_REENTRANT_API -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi/CORE Epoll.c Epoll.xs:7: sys/epoll.h: No such file or directory make: *** [Epoll.o] Error 1