--- php-5.6.0RC4/configure.ac~	2014-08-20 16:08:27.000000000 +0300
+++ php-5.6.0RC4/configure.ac	2014-08-21 20:49:14.693072513 +0300
@@ -1408,6 +1408,9 @@
 dnl libtool 1.4.3 needs this.
 PHP_SET_LIBTOOL_VARIABLE([--preserve-dup-deps])
 
+dnl pass --tag=CC to unconfuse when CC="ccache gcc"
+PHP_SET_LIBTOOL_VARIABLE([--tag=CC])
+
 test -z "$PHP_COMPILE" && PHP_COMPILE='$(LIBTOOL) --mode=compile $(COMPILE) -c $<'
 test -z "$CXX_PHP_COMPILE" && CXX_PHP_COMPILE='$(LIBTOOL) --mode=compile $(CXX_COMPILE) -c $<'
 SHARED_LIBTOOL='$(LIBTOOL)'