On Monday, 10 April 2017 at 12:59:58 UTC, qznc wrote:
[...]
How do Debian and C++ go along? There is no ABI compatibility
between GCC and Clang afaik.
Clang offers compatibility for most basic features. There are
some ABI compatibility issues though and you find them reported
in the Clang/libc++ bugtrackers, and it's a pain (but the
Clang/LLVM guys think they can do some ABI better/faster than
what GCC offers, so some breakage is deliberate).
In Debian, GCC compiles everything as the system's default
compiler, so at least inside the distribution we don't have to
worry about potential incompatibilities. Since GCC also supports
an enormous amount of architectures and has strong optimization,
the case is different there.
In terms of "what happens when users use the OSes C++ libraries
and compile with Clang instead of GCC" the situation is similar
though: They might run into ABI issues (rarer though than with
D). For the distro itself the problem doesn't exist though.
