David Cole cd9aa73f3a CPack: look for makensis in the PATH (#8210)
Previously, we would search in the Windows registry for the path
to makensis, and fail immediately if we could not read the registry
value, assuming that it was simply not installed.

This change looks for makensis in the PATH even if the registry value
is not there, enabling the scenario where makensis is installed without
admin privileges and never even touches HKEY_LOCAL_MACHINE during the
non-admin install.
2010-12-17 13:29:10 -05:00
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