On 06/20/2015 04:10 AM, Roman Wüger wrote:
> but the problem with this command is, that for multi configuration
> environments (e.g. Visual Studio), it requires $<CONFIG> in the
> filename which then creates 4 header files. One for each configuration.
Yes, because generator expressions can reference things that depend
on the configuration. configure_file does not support them because
its result does not depend on the configuration. I guess I didn't
understand what you meant by "generator expressions can be used with
configure_file to avoid such overhead".
Returning to the original problem, the circular dependency may appear
because using $<TARGET_FILE_DIR:${projectName}> in a custom target
results in an ordering dependency on the target named in the
generator expression. To confirm this, try hard-coding the path
by hand for one example.
-Brad
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