Checking if your kit is complete... Looks good Writing Makefile for Solaris::loadavg cp loadavg.pm blib/lib/Solaris/loadavg.pm /Users/cpanrun/build/5.10.0/bin/perl /Users/cpanrun/build/5.10.0/lib/ExtUtils/xsubpp -typemap /Users/cpanrun/build/5.10.0/lib/ExtUtils/typemap loadavg.xs > loadavg.xsc && mv loadavg.xsc loadavg.c Please specify prototyping behavior for loadavg.xs (see perlxs manual) gcc -c -fno-common -DPERL_DARWIN -no-cpp-precomp -arch ppc -arch i386 -nostdinc -B/Developer/SDKs/MacOSX10.4u.sdk/usr/include/gcc -B/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc -isystem/Developer/SDKs/MacOSX10.4u.sdk/usr/include -F/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks -mmacosx-version-min=10.3 -DPRIVLIB_LAST_IN_INC -fno-strict-aliasing -pipe -O3 -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" "-I/Users/cpanrun/build/5.10.0/lib/CORE" loadavg.c loadavg.xs:4:25: error: 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.) loadavg.xs:4:25: error: 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.) lipo: can't open input file: /var/tmp//ccnRO957.out (No such file or directory) make: *** [loadavg.o] Error 1