How does this work?
% cmake --help-property INTERPROCEDURAL_OPTIMIZATION
cmake version 2.8.8
INTERPROCEDURAL_OPTIMIZATION
Enable interprocedural optimization for targets in a directory.
If set to true, enables interprocedural optimizations if they are
known to be supported by the compiler.
During Release builds, I want to use -flto if I have a recent enough gcc,
and -ip -ipo1 if I have icc. I currently detect and set these manually.
It would be nice if I could trust this property, but this doesn't say much
about exactly what it does. In particular, I want -ipo1, not -ipo0 or
-ipo.
--
Cheers,
Leif
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