--- flamerobin/configure	2013-03-25 03:11:25.000000000 -0700
+++ flamerobin/configure.new	2015-07-27 13:52:08.572112368 -0700
@@ -15437,7 +15437,7 @@
 #include <boost/version.hpp>
 boost-lib-version = BOOST_LIB_VERSION
 _ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+if (eval "$ac_cpp -P conftest.$ac_ext") 2>&5 |
   tr -d '\r' |
   $SED -n -e "/^boost-lib-version = /{s///;s/\"//g;p;q;}" >conftest.i 2>&1; then :
   boost_cv_lib_version=`cat conftest.i`
--- flamerobin/boost.m4	2013-03-25 03:11:25.000000000 -0700
+++ flamerobin/boost.m4.new	2015-07-27 13:50:45.617243292 -0700
@@ -71,7 +71,7 @@
 dnl boost_cv_lib_version='1_37\r' for instance, which breaks
 dnl everything else.
 dnl Cannot use 'dnl' after [$4] because a trailing dnl may break AC_CACHE_CHECK
-(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
+(eval "$ac_cpp -P conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
   tr -d '\r' |
   $SED -n -e "$1" >conftest.i 2>&1],
   [$3],