Checking if your kit is complete... Looks good Note (probably harmless): No library found for -lm Writing Makefile for Algorithm::SVM Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp lib/Algorithm/SVM/DataSet.pm blib\lib\Algorithm\SVM\DataSet.pm cp lib/Algorithm/SVM.pm blib\lib\Algorithm\SVM.pm AutoSplitting blib\lib\Algorithm\SVM.pm (blib\lib\auto\Algorithm\SVM) C:\cpanrun\build\5-10-0\bin\perl.exe C:\cpanrun\build\5-10-0\lib\ExtUtils\xsubpp -C++ -noprototypes -typemap C:\cpanrun\build\5-10-0\lib\ExtUtils\typemap -typemap typemap SVM.xs > SVM.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv SVM.xsc SVM.c g++ -c -Wall -O3 -DVERSION=\"0.13\" -DXS_VERSION=\"0.13\" "-IC:\cpanrun\build\5-10-0\lib\CORE" SVM.c 'g++' is not recognized as an internal or external command, operable program or batch file. NMAKE : fatal error U1077: 'g++' : return code '0x1' Stop.