[Kde-bindings] setting the sip install dir

[Marcos Dione]

    I'm not so sure of this other patch, so I really want a review of it.

    similar to this bug report[1], I couldn't install kdebindings in my home if
I'm using the system's sip. the problem is that
kdelibs/cmake/modules/FindSIP.py has this output:

sip_version:040802
sip_version_str:4.8.2
sip_bin:/usr/bin/sip
default_sip_dir:/usr/share/sip
sip_inc_dir:/usr/include/python2.5

    so SIP_DEFAULT_SIP_DIR is set to /usr/share/sip . the patch allows to
override it passing -DSIP_INSTALL_SIP_DIR=<path> to cmake. this is similar to
the patch[2] I made for that bug report.

--
[1] https://bugs.kde.org/show_bug.cgi?id=174806

[2] http://reviewboard.kde.org/r/553/diff/
-- 
(Not so) Random fortune:
Which is worse: ignorance or apathy? Who knows? Who cares?