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List: cmake
Subject: Re: [CMake] Cmake Frameworks and Bitcode
From: Cameron Palmer <cameron () promon ! no>
Date: 2018-03-26 8:24:56
Message-ID: B6F8857E-1E7E-413F-A4F5-43493BA7690E () promon ! no
[Download RAW message or body]
Quite possible I'm misunderstanding something, but…
As you said, I really don't care much at this point about the RPATH.
However, setting the property BUILD_WITH_INSTALL_RPATH on or off doesn't change \
anything as far as I can tell. The target is still linked with \
-headerpad_max_install_names and the linker still complains. Also, looking at policy \
68 and working with the INSTALL_NAME, which is the one thing you do care about, you \
cannot set the directory to @rpath which seems silly. Most frameworks I'm familiar \
with have the install name set to @rpath/My.framwork/my. I use add_custom_command to \
correctly set it, but still seems like this is broken.
The library I've been testing is iperf, it is relatively straightforward, so it makes \
a good test case. I've added CMake and it is at https://github.com/palmerc/iperf.
Cameron.
> On 19 Mar 2018, at 12:54, Brad King <brad.king@kitware.com> wrote:
>
> On 03/12/2018 10:36 AM, Cameron Palmer wrote:
> > So after a bit of hacking it seems that Cmake should provide something like:
> >
> > CMAKE_OSX_BITCODE_ENABLE
>
> For reference, this refers to a previous post:
>
> Bitcode and CMake
> https://cmake.org/pipermail/cmake/2018-March/067191.html
>
> with the goal of using `-fembed-bitcode` while avoiding a warning:
>
> ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle \
> (Xcode setting ENABLE_BITCODE=YES)
> > Which would pass -fembed-bitcode to the compiler and linker and remove
> > the option in Darwin.cmake for -Wl,-headerpad_max_install_names in
> > CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS.
>
> One may avoid the `-headerpad_max_install_names` option with this:
>
> https://cmake.org/cmake/help/v3.11/variable/CMAKE_BUILD_WITH_INSTALL_RPATH.html
>
> There is no reason to build with any rpath set for the build tree
> when one cannot run the binaries on the macOS host anyway.
>
> -Brad
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