Mike, the bottom line is cmake -E copy should just work on any platform, and
you may have found a bug in it for some MinGW variation and/or cmake
back-end generator.
So as not to get distracted by all the special details of your project,
I suggest you give a really simple example which anybody with access to
MinGW can replicate, and also give all the details for your MinGW platform.
For example, is it pure MinGW or MinGW/MSYS? What version of cmake are
you using and what cmake back-end generator?
I don't have access to MinGW myself, but our PLplot cmake build system uses
cmake -E copy, and our MinGW users have not reported any problems with it.
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________
Linux-powered Science
__________________________
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