Using hardcoded paths! You probablNote (probably harmless): No library found for '-lML' Checking if your kit is complete... Looks good Writing Makefile for Math::ematica cp ematica.pm blib\lib\Math\ematica.pm AutoSplitting blib\lib\Math\ematica.pm (blib\lib\auto\Math\ematica) D:\cpanrun\build\5-6-NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. ld\5-6-1\lib D:\cpanrun\build\5-6-1\lib\ExtUtils/xsubpp -prototypes -typemap D:\cpanrun\build\5-6-1\lib\ExtUtils\typemap -typemap typemap ematica.xs > ematica.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 ematica.xsc ematica.c cl -c -I/usr/local/mathematica/AddOns/MathLink/DevelopersKits/Linux/CompilerAdditions -nologo -O1 -MD -Zi -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DPERL_MSVCRT_READFIX -O1 -MD -Zi -DNDEBUG -DVERSION=\"1.201\" -DXS_VERSION=\"1.201\" -ID:\cpanrun\build\5-6-1\lib\CORE ematica.c ematica.c ematica.xs(27) : fatal error C1083: Cannot open include file: 'mathlink.h': No such file or directory