Note (probably harmless): No library found for '-Writing Makefile for Algorithm::SVM cp lib/Algorithm/SVM/DataSet.pm blib\lib\Algorithm\SVM\DataSet.pm cp lib/Algorithm/SVM.pm blib\lib\Algorithm\SVM.pm AutoSplittingPlease specify prototyping behavior for SVM.xs (see perlxs manual) The system cannot execute the specified program. NMAKE : fatal error U1077: 'c++' : return code '0x1' Stop. \ExtUtils/xsubpp -C++ -typemap D:\cpanrun\build\5-6-1\lib\ExtUtils\typemap -typemap typemap SVM.xs > SVM.xsc && D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib -MExtUtils::Command -e mv SVM.xsc SVM.c c++ -c -nologo -O1 -MD -Zi -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DPERL_MSVCRT_READFIX -O3 -DVERSION=\"0.09\" -DXS_VERSION=\"0.09\" -ID:\cpanrun\build\5-6-1\lib\CORE SVM.c