https://bugs.php.net/bug.php?id=63016
--- config.m4.orig	2012-07-29 08:41:03.000000000 -0500
+++ config.m4	2013-01-04 06:04:30.000000000 -0600
@@ -27,6 +27,6 @@
   PHP_REQUIRE_CXX()
   PHP_ADD_LIBRARY_WITH_PATH(stdc++, "", RAR_SHARED_LIBADD)
 
-  PHP_NEW_EXTENSION(rar, rar.c rar_error.c rararch.c rarentry.c rar_stream.c rar_navigation.c $unrar_sources, $ext_shared,,-DRARDLL -DGUI -DSILENT -Wno-write-strings -Wno-logical-op-parentheses -I@ext_srcdir@/unrar)  
+  PHP_NEW_EXTENSION(rar, rar.c rar_error.c rararch.c rarentry.c rar_stream.c rar_navigation.c $unrar_sources, $ext_shared,,-DRARDLL -DGUI -DSILENT -Wno-write-strings -I@ext_srcdir@/unrar)  
   PHP_ADD_BUILD_DIR($ext_builddir/unrar)  
 fi