[CMake] How to use file(WRITE... to write the literal string $'\r' to a file

[Alan W. Irwin]

After a lot of thrashing around I finally discovered that

file(WRITE <filename> "\$""'""\\r""'")

worked to write the literal string

$'\r'

to a file, i.e, so that the od -a result was

$   '   \   r   '

Is there an easier way to write this literal string to a file that I missed?

Alan
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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); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
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Linux-powered Science
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