[CMake] How to build a target on install (only)?

[David Cole]

The easiest thing is probably to use the install(SCRIPT or
install(CODE signature of the install command rather than having a
"build time" custom command.


HTH,
David C.


On Sun, Feb 15, 2015 at 9:55 AM, Paul Smith <paul at mad-scientist.net> wrote:
> In my Mac OSX builds I want to run dsymutil to create .dSYM debug contents.
> However, this is very slow so I don't want to do it during normal builds
> (where it's not needed because I have all the object files), I only want it
> to be done during the install step.
>
> I can create an add_custom_command() to run dsymutil easily enough,
> something like:
>
>   function(stagedebug target dir)
>       if(APPLE)
>           set(destfile "${dir}/${target}.dSYM/Contents/Info.plist")
>           add_custom_command(OUTPUT "$destfile"
>               COMMAND dsymutil "${dir}/${target}"
>               MAIN_DEPENDENCY ${target}
>               COMMENT "Staging dSYM for ${target} to ${dir}"
>               VERBATIM)
>
>           # Now what?
>       endif
>   endfunction()
>
>
> but I have no idea how to hook this into the install step.  I don't see
> anything in the install() command that lets me specify a target to be run,
> it just seems to be able to copy files.
>
> What am I missing?
>
> Thanks!
>
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