productbuild CPack generator (Mac OS X).
The following variable is specific to installers built on Mac OS X using productbuild:
CPACK_COMMAND_PRODUCTBUILD
Path to the productbuild(1) command used to generate a product archive for the OS X Installer or Mac App Store. This variable can be used to override the automatically detected command (or specify its location if the auto-detection fails to find it.)
CPACK_COMMAND_PKGBUILD
Path to the pkgbuild(1) command used to generate an OS X component package on OS X. This variable can be used to override the automatically detected command (or specify its location if the auto-detection fails to find it.)
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© 2000–2011 Insight Software Consortium
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.7/module/CPackProductBuild.html