--- common/autoconf/build-performance.m4 Sat Oct 24 06:20:56 2015 -0700 +++ common/autoconf/build-performance.m4 Wed Jan 20 21:11:23 2016 -0800 @@ -212,7 +212,7 @@ # Only use ccache if it is 3.1.4 or later, which supports # precompiled headers. AC_MSG_CHECKING([if ccache supports precompiled headers]) - HAS_GOOD_CCACHE=`($CCACHE --version | head -n 1 | awk '{ split($3, a, "."); if (a@<:@1@:>@ >= 3 && (a@<:@2@:>@ > 1 || (a@<:@2@:>@ == 1 && a@<:@3@:>@ >= 4))) print "yes"; else print "no"; }') 2> /dev/null` + HAS_GOOD_CCACHE=`($CCACHE --version | head -n 1 | awk '{ split(@S|@3, a, "."); if (a@<:@1@:>@ >= 3 && (a@<:@2@:>@ > 1 || (a@<:@2@:>@ == 1 && a@<:@3@:>@ >= 4))) print "yes"; else print "no"; }') 2> /dev/null` if test "x$HAS_GOOD_CCACHE" = xyes; then AC_MSG_RESULT([no, disabling ccache]) CCACHE=