Checking if your kit is complete... Looks good Writing Makefile for Solaris::loadavg cp loadavg.pm blib/lib/Solaris/loadavg.pm /home/cpanrun/ia64-lp64/build/5.6.1/bin/perl -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi-64all -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1 /home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/ExtUtils/typemap loadavg.xs > loadavg.xsc && mv loadavg.xsc loadavg.c Please specify prototyping behavior for loadavg.xs (see perlxs manual) gcc -c -DUSE_REENTRANT_API -D_POSIX_C_SOURCE=199506L -D_HPUX_SOURCE -mlp64 -L/lib/hpux64 -DUINT32_MAX_BROKEN -fPIC -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi-64all/CORE loadavg.c loadavg.xs:4:25: sys/loadavg.h: No such file or directory loadavg.c: In function `XS_Solaris__loadavg_loadavg': loadavg.c:145: error: `LOADAVG_NSTATS' undeclared (first use in this function) loadavg.c:145: error: (Each undeclared identifier is reported only once loadavg.c:145: error: for each function it appears in.) make: *** [loadavg.o] Error 1