[libvirt] [PATCH v2 2/5] Require use of GCC 4.4 or CLang compilers

[Peter Krempa]

On Wed, Jul 05, 2017 at 12:58:48 +0100, Daniel Berrange wrote:
> We only ever test libvirt with GCC or CLang which provides a
> GCC compatible compilation environment. Between them, these
> compilers cover every important operating system platform,
> even Windows.
> 
> Mandate their use to make it explicit that we don't care about
> compilers like Microsoft VCC or other UNIX vendor C compilers.
> 
> GCC 4.4 was picked as the baseline, since RHEL-6 ships 4.4.7
> and that lets us remove a large set of checks. There is a slight
> issue that CLang reports itself as GCC 4.2, so we must also check
> if __clang__ is defined. We could check a particular CLang version
> too, but that would require someone to figure out a suitable min
> version which is fun because OS-X reports totally different CLang
> version numbers from CLang builds on Linux/BSD
> 
> Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> ---
>  config-post.h  |  20 +++++-----
>  src/internal.h | 121 ++++++++++++++++++---------------------------------------
>  2 files changed, 48 insertions(+), 93 deletions(-)

ACK
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