If ccache is enabled, compiling apr-utils fails with the following error
messages because libtool is confused by the "ccache gcc" appearing on
the command line. Disable ccache for apr, so that ccache don't get
enabled in all software using apr's rules.mk.
The error message from apr-utils-native:
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
