Hi there
I am trying to coax a Cmake generation of a Visual Studio project of our
cross-platform product, that includes the PNaCl platform. The MSBuild
setup for PNaCl is a little bit fussy, and does not like the relative
pathnames in <AdditionalDependencies>, that get produced when the
product has target_link_libraries setup between the static libraries in
the product. For the sake of this mail I'll call the library project
'LibProject', which as it's based on unix toolchain, will get the static
lib created as libLibProject.a. To be used as a command-line on the
PNaCl cross-compiler, then it needs to get translated to -lLibProject
(without the lib prefix, or the .a suffix).
So going into the Visual Studio generator for the EXE project, at
present are the relative paths (will use Debug for this example):
../LibProject/Debug/libLibProject.a which gets added to the
<AdditionalDependencies> tag in the .vcxproj
To make the PNaCl MSBuild extension work, then instead it needs to be:
* <AdditionalDependencies>LibProject</AdditionalDependencies>
*
<AdditionalLibraryDirectories>../LibProject/Debug</AdditionalLibraryDirectories>
I am well aware that these get set by the cmake functions:
target_link_libraries() and link_directories(), so feel this ought to be
possible by Cmake script.
What I'm struggling with, is finding *a place* where I can:
* Query all the libraries that have become dependent on a target (the
input to the Generator). As target_link_libraries cascade, so my
EXE project does not know about all of its leaf libraries, so I'm
not really sure if there is a target property with ALL the dependent
static library projects)
* Adjust this list, stripping: path, 'lib' and '.a'
* Inserting link_directories (or the equivalent, presuming it's some
target property now), corresponding to the relative paths that were
stripped in the step above
All of this would need to happen, after we've finished setting up the
target, but before the generator. Ideally this would be something I
defined in the ToolChain folder - but I can't think of any kind of
callback in the CMake system.
I'm open to other suggestions, about how to setup this visual studio
cross-compile. While PNaCl + MSDev may be rare, I feel that
cross-compiling for other unix systems with -l and -L library and path
command-lines ought to have been done before with Visual Studio generators.
Thanks in advance
Andy
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