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

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(a)redhat.com&gt; --- config-post.h | 20 +++++----- src/internal.h | 121 ++++++++++++++++++--------------------------------------- 2 files changed, 48 insertions(+), 93 deletions(-)