Re: [cmake-developers] [CMake] add_custom_command() OUTPUT does not accept generator expressions, why?

> add_library(test_lib STATIC $/generated_file.cpp) > add_custom_command(OUTPUT $/generated_file.cpp > ...) > > When we compute the output information like target file directory and > target file name we need to also determine the linker language. For > that we need the full list of source

Re: [cmake-developers] [CMake] add_custom_command() OUTPUT does not accept generator expressions, why?

On 04/06/2016 08:02 AM, Petr Kmoch wrote: > On 6 April 2016 at 09:51, Yves Frederix wrote: >> add_custom_target(test_target ALL SOURCES >> $/generated_file.cpp) Watch out for circular logic here. For example: add_library(test_lib STATIC $/generated_file.cpp) add_custom_command(OUTPUT

Re: [cmake-developers] [CMake] add_custom_command() OUTPUT does not accept generator expressions, why?

On 6 April 2016 at 09:51, Yves Frederix wrote: > [...] > So, basically, a prerequisite for the above > to work is that CMake behaves nicely for the following as well: > > add_library(test_lib STATIC existing_file_$.cpp) > > At this moment CMake supports generator

Re: [cmake-developers] [CMake] add_custom_command() OUTPUT does not accept generator expressions, why?

Hi Brad, Thanks for the pointers. I played with this a bit over the last week, mainly to get familiar with the CMake internals, and it seems that there are some things that might need discussion before getting to a solution. Note that all my experiments were done using the VS generator. What we

Re: [cmake-developers] [CMake] add_custom_command() OUTPUT does not accept generator expressions, why?

On 03/31/2016 07:26 AM, Yves Frederix wrote: >> If anyone is interested in trying to implement generator expressions >> for custom command outputs, I can provide more details to get started. > > I am interested in having a go at this. I recently ran into this issue > at work as well and actually

Re: [cmake-developers] [CMake] add_custom_command() OUTPUT does not accept generator expressions, why?

Hi, On 28 March 2016 at 15:05, Brad King wrote: > On 03/27/2016 06:11 AM, Dan Liew wrote: >> OUTPUT does not accept generator expressions, why? > > It hasn't been implemented. At least at one time it would have been > very hard to implement. I'm not sure now because