Removes -D define flags added by add_definitions().
remove_definitions(-DFOO -DBAR ...)
Removes flags (added by add_definitions()) from the compiler command line for sources in the current directory and below.
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© 2000–2011 Insight Software Consortium
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.7/command/remove_definitions.html