I'll explain a bit why I'm asking. I noticed that for code bases that
work on Android plus other UNIX platforms, they unconditionally
specify `-stdlib=libc++`, however this doesn't work on Ubuntu by
default, which uses gnu stl + gcc/clang. So you get compiler errors.
There's no way for me to "search" a platform to see if it is eligible
for the libc++ flag, I simply have to either disable it completely or
conditionally include it based on target platform and/or toolchain.
None of these really address the root cause.
I'm not even really sure what a find module for this would do... but
typically find modules don't provide compiler flags, so I'm not sure
if that's the right tool for the job. Would love to hear from the
developers on this, so I've cross posted to the dev mailing list in
this reply.
On Mon, Aug 20, 2018 at 10:05 PM Thompson, KT <k...@lanl.gov> wrote:
>
> I'm also interested in the answer to Robert's question. I've been using
>
> set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -stdlib=libc++")
>
> but it seems like there should be a more elegant approach.
>
> -tk
>
> -----Original Message-----
> From: CMake <cmake-boun...@cmake.org> On Behalf Of Robert Dailey
> Sent: Monday, August 20, 2018 11:48 AM
> To: CMake <cmake@cmake.org>
> Subject: [CMake] libc++ usage in CMake with Clang?
>
> Is the only way to use libc++ to muck with compile flags? Or is there a
> proper find module for this or something? Is there a more CMake-esque way of
> specifying the STL library to use with the toolchain?
> --
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