diff --git a/Changes b/Changes
index 46efce469..6336e6c2d 100644
--- a/Changes
+++ b/Changes
@@ -4,6 +4,9 @@ The contributors that suggested a given feature are shown in []. Thanks!
 
 * Verilator 3.915 devel
 
+****  Fix MacOS portability, bug1232. [Jeff Bush]
+
+
 * Verilator 3.914 2017-10-14
 
 **    Added new examples/ directory with appropriate examples. This replaces the
diff --git a/configure.ac b/configure.ac
index 7934813bb..c8403c816 100644
--- a/configure.ac
+++ b/configure.ac
@@ -107,7 +107,7 @@ AC_TYPE_SIZE_T
 AC_C_INLINE
 
 AC_LINK_IFELSE(
-     [AC_LANG_PROGRAM([], [[int* a=new int; delete a; ]])],
+     [AC_LANG_PROGRAM([#include <new>], [[int* a=new int; delete a; ]])],
      [], [AC_MSG_ERROR([$CXX does not seem to successfully compile a simple C++ program])])
 
 AC_DEFUN([_MY_CXX_CHECK_FLAG],
@@ -119,7 +119,7 @@ AC_DEFUN([_MY_CXX_CHECK_FLAG],
     CXXFLAGS="$CXXFLAGS $1 -Werror"
     AC_MSG_CHECKING([whether $CXX accepts $1])
     AC_LINK_IFELSE(
-         [AC_LANG_PROGRAM([], [[int* a=new int; delete a; ]])],
+         [AC_LANG_PROGRAM([#include <new>], [[int* a=new int; delete a; ]])],
          [_my_result=yes
           if test -s conftest.err; then
             if grep -e "$1" conftest.err >/dev/null; then