Exporting the compiler version in FindKDE4Internal.cmake?

[Raphael Kubo da Costa]

Hey all,

So Alex from DragonFly BSD has been trying to contribute to the
nightly builds, but kdelibs is failing to compile for him -- see
https://bugs.kde.org/show_bug.cgi?id=255922

Apparently, the proxymodeltestsuite only compiles on gcc 4.2+, but the
default compiler on DragonFly is still gcc 4.1 (IIRC, Qt only supports
gcc 4.2+ officially).

I was wondering what approach should be taken here -- we can just
ignore gcc 4.1, we can compile those tests only if gcc > 4.1 or we can
hope those tests can be "fixed" to compile on a probably buggy gcc
version.

If we go with the second option, it is possible to add some check for
gcc and its version in the CMakeLists.txt that compiles that test
suite. OTOH, FindKDE4Internal.cmake already checks for the GCC
version, so I was wondering if it makes sense to export the values it
finds. What do you think?

Cheers,
rakuco