On Fri, 3 Apr 2015, Boudewijn Rempt wrote:
On Fri, 3 Apr 2015, Alexander Richardson wrote:
2015-04-03 10:08 GMT+02:00 Boudewijn Rempt <b...@valdyas.org>:
I've got a problem porting calligra to kf5 that I don't know how to solve.
We use a 3rd party library called Vc, which does vectorization for us. It
takes a certain object file and builds it for different processor
architecturres. In order to do that, it generates a new gcc line for every
architecture, using the value of INCLUDE_DIRECTORIES, like this:
get_directory_property(_inc INCLUDE_DIRECTORIES)
foreach(_i ${_inc})
list(APPEND _flags "-I${_i}")
endforeach()
I haven't tested this, but according to the CMake documentation
(http://www.cmake.org/cmake/help/v3.2/manual/cmake-generator-expressions.7.html)
this strange construction will probably work:
list(APPEND _flags "$<$<BOOL:${_i}>:-I$<JOIN:${_i}, -I>>")
I'll give that a try -- since Vc is a 3rd party library I'll have to do
that in our own code, of course.
Weird, I must be doing something wrong because even if I use that in the
vc macro (which I shouldn't of course), it doesn't seem to make any
difference. And even after reading the documentation page, I'm completely
unsure about _why_ we'd need such expressions here.
Boudewijn
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