On 2014-02-03 11:44, gimmeamilk gimmeamilk wrote:
I have a custom tool that processes a given list of IDL files and
produces a number of .cpp and .h files as output. I want to add those
files to the list of things to compile in my CMakeLists, and also
model the dependencies those files have on the IDL. To keep things
simple, I will state that any change to any of the IDL files should
trigger a regeneration of all cpp/h.
I have a custom command that takes care of running the generator tool
and listing all the IDL files as dependencies.
My issue is getting the subsequent list of cpp/h files into cmake at
build-time. It is not possible to infer from the name of the IDL files
what cpp files will be generated. My generator tool will, however,
output the list of generated files to a text file.
My usual approach to problems like these is to figure out a way to
compute the list of output files *without* actually generating them
(ideally by the generation tool having a mode to do that), and to then
arrange (1) for that to happen at configure time, and (2) for
configuration to depend on the input file(s). (For example, generating
Python bindings with Shiboken is a similar problem.)
Alternatively, you can create an external project that you configure and
build as part of your build step. (This might work strangely on e.g.
MSVC, however.)
--
Matthew
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