Checking if your kit is complete... Looks good Unrecognized argument in LIBS ignored: 'Netapi32.lib' Writing Makefile for Win32::Net::Session cp Session.pm blib/lib/Win32/Net/Session.pm AutoSplitting blib/lib/Win32/Net/Session.pm (blib/lib/auto/Win32/Net/Session) /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 Session.xs > Session.xsc && mv Session.xsc Session.c Please specify prototyping behavior for Session.xs (see perlxs manual) gcc -c -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DVERSION=\"0.02\" -DXS_VERSION=\"0.02\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE Session.c In file included from Session.xs:5: /usr/include/assert.h:79: warning: `assert' redefined /home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE/perl.h:2191: warning: this is the location of the previous definition Session.xs:6: windows.h: No such file or directory Session.xs:9: Lm.h: No such file or directory make: *** [Session.o] Error 1