--- common/autoconf/generated-configure.sh.orig
+++ common/autoconf/generated-configure.sh
@@ -36760,7 +36760,7 @@ fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking if ccache supports precompiled headers" >&5
 $as_echo_n "checking if ccache supports precompiled headers... " >&6; }
     HAS_GOOD_CCACHE=`($CCACHE --version | head -n 1 | awk '{ split($3, a, "."); if (a[1] >= 3 && (a[2] > 1 || (a[2] == 1 && a[3] >= 4))) print "yes"; else print "no"; }') 2> /dev/null`
-    if test "x$HAS_GOOD_CCACHE" = xyes; then
+    if test "x$HAS_GOOD_CCACHE" != xyes; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, disabling ccache" >&5
 $as_echo "no, disabling ccache" >&6; }
       CCACHE=