On 11/17/2015 10:37 AM, Jack Stalnaker wrote:
I'm trying to figure out the best way to handle something that was a
convenience lib under autotools. I realize that there's a FAQ entry here:
https://cmake.org/Wiki/CMake_FAQ#Does_CMake_support_.22convenience.22_libraries.3F
But its terse 2 paragraphs don't say how to actually do what it
suggests. My problem is this. I have this source tree:
lib
|--foo.c
|--foo.h
|--bar.c
|--bar.h
|--baz.c
src
|--goo.c
In lib, I need to somehow collectively refer to foo and bar. Okay, so I
can create a variable:
set(foobarSRCS foo.c bar.c)
set(foobarLIBS ${externalLibFound})
which is what the FAQ entry seems to suggest. However, this variable is
not visible to goo.c. Okay, so as an alternative, I can do this:
set(foobarSRCS foo.c bar.c PARENT_SCOPE), etc.
but now the variable is not visible to baz.c, which also must include
the srcs to create a module library called _baz! I can of course do
something like this:
set(foobarSRCSLOC foo.c bar.c)
set(foobarSRCS ${foobarSRCSLOC} PARENT_SCOPE)
but this feels dirty and repetitive.
I also realize that I can just create the variables in src, but that
kind of defeats the entire purpose of walling of the common libs and
their dependencies in the first place.
Is this the right way to work, or am I missing something simple?
There is a new feature to do that:
https://cmake.org/Wiki/CMake/Tutorials/Object_Library
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