Checking if your kit is complete... Looks good Writing Makefile for Text::LevenshteinXS Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp LevenshteinXS.pm blib\lib\Text\LevenshteinXS.pm AutoSplitting blib\lib\Text\LevenshteinXS.pm (blib\lib\auto\Text\LevenshteinXS) C:\cpanrun\build\5-10-0\bin\perl.exe C:\cpanrun\build\5-10-0\lib\ExtUtils\xsubpp -typemap C:\cpanrun\build\5-10-0\lib\ExtUtils\typemap LevenshteinXS.xs > LevenshteinXS.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv LevenshteinXS.xsc LevenshteinXS.c Please specify prototyping behavior for LevenshteinXS.xs (see perlxs manual) cl -c -nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAST_IN_INC -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBUG -O1 -DVERSION=\"0.02\" -DXS_VERSION=\"0.02\" "-IC:\cpanrun\build\5-10-0\lib\CORE" LevenshteinXS.c LevenshteinXS.c LevenshteinXS.xs(24) : error C2143: syntax error : missing ';' before 'type' LevenshteinXS.xs(25) : error C2065: 'n' : undeclared identifier LevenshteinXS.xs(26) : error C2065: 'm' : undeclared identifier LevenshteinXS.xs(30) : error C2065: 'd' : undeclared identifier LevenshteinXS.xs(30) : warning C4047: '=' : 'int ' differs in levels of indirection from 'void *' LevenshteinXS.xs(34) : error C2065: 'k' : undeclared identifier LevenshteinXS.xs(35) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(35) : error C2106: '=' : left operand must be l-value LevenshteinXS.xs(37) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(37) : error C2106: '=' : left operand must be l-value LevenshteinXS.xs(39) : error C2065: 'i' : undeclared identifier LevenshteinXS.xs(40) : error C2065: 'j' : undeclared identifier LevenshteinXS.xs(44) : error C2065: 'cost' : undeclared identifier LevenshteinXS.xs(48) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(48) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(48) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(48) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(48) : error C2106: '=' : left operand must be l-value LevenshteinXS.xs(50) : error C2065: 'distance' : undeclared identifier LevenshteinXS.xs(50) : error C2109: subscript requires array or pointer type LevenshteinXS.xs(51) : warning C4022: 'function through pointer' : pointer mismatch for actual parameter 2 NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.