This might be extremely silly of me, but does: 
libpath:"C:/Perl\lib\CORE"

[download]
not look a bit odd to you? Shouldn't that first forward slash be a backslash? Unresolved symbols are usually caused by the compiler not finding the libraries containing said symbols (or not being told where to find them).

CU
Robartes-

In reply to Re: compiling miniperl ( unresolved external symbol _PL_op_mutex ) by robartes
in thread compiling miniperl ( unresolved external symbol _PL_op_mutex ) by PodMaster

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