--- JohnTheRipper-d73288b91d92f3bd670c18d3853ddaf0e02159f0/src/m4/jtr_utility_macros.m4~	2018-10-31 14:46:02.000000000 +0100
+++ JohnTheRipper-d73288b91d92f3bd670c18d3853ddaf0e02159f0/src/m4/jtr_utility_macros.m4	2018-11-04 13:18:54.692843591 +0100
@@ -150,6 +150,30 @@
 JTR_LIST_ADD_RESULT
 ])
 
+dnl @synopsis SET_X32_INCLUDES
+dnl @summary check and set some x32 bit includes
+dnl This might be a Bad Idea[tm] if cross compiling.
+AC_DEFUN([JTR_SET_X32_INCLUDES],
+[
+  AC_MSG_CHECKING([additional paths (x32)])
+  ADD_LDFLAGS=""
+  ADD_CFLAGS=""
+if test -d /usr/local/libx32; then
+   ADD_LDFLAGS="$ADD_LDFLAGS -L/usr/local/libx32"
+fi
+if test -d /usr/libx32; then
+   ADD_LDFLAGS="$ADD_LDFLAGS -L/usr/libx32"
+fi
+if test -d /libx32; then
+   ADD_LDFLAGS="$ADD_LDFLAGS -L/libx32"
+fi
+JTR_LIST_ADD(CPPFLAGS, [$ADD_CFLAGS]) # no typo here
+jtr_list_add_result=""
+JTR_LIST_ADD(LDFLAGS, [$ADD_LDFLAGS])
+JTR_LIST_ADD(CFLAGS, [$ADD_CFLAGS])
+JTR_LIST_ADD_RESULT
+])
+
 
 dnl @synopsis SET_NORMAL_SSL_INCLUDES(base path)
 dnl @summary check and set include/library paths for OpenSSL
--- JohnTheRipper-d73288b91d92f3bd670c18d3853ddaf0e02159f0.orig/src/configure.ac	2018-10-31 14:46:02.000000000 +0100
+++ JohnTheRipper-d73288b91d92f3bd670c18d3853ddaf0e02159f0/src/configure.ac	2018-11-04 13:18:54.656175005 +0100
@@ -269,11 +269,11 @@
 case "$host_cpu" in
   ia64|mips64|mips64eb|mipseb64|mips64el|mipsel64|mips64*|powerpc64*|sparc64|x86_64)
     CFLAGS_EX=""
-    JTR_FLAG_CHECK_LINK([-m64], 1)
+    JTR_FLAG_CHECK_LINK([-mx32], 1)
     if test "x${CFLAGS_EX}" != x ; then
-      LDFLAGS="-m64 $LDFLAGS"
-      CFLAGS="-m64 $CFLAGS"
-      ASFLAGS="-m64 $ASFLAGS"
+      LDFLAGS="-mx32 $LDFLAGS"
+      CFLAGS="-mx32 $CFLAGS"
+      ASFLAGS="-mx32 $ASFLAGS"
     fi
     ;;
   *)
@@ -307,10 +307,33 @@
    [AC_MSG_RESULT([32-bit])]
 )
 
+dnl Check for x32 environment
+AC_MSG_CHECKING([for x32 environment])
+AC_LINK_IFELSE(
+   [AC_LANG_SOURCE(
+      [extern void exit(int);
+      int main() {
+      #if defined(__ILP32__) && defined(__x86_64__)
+          exit(0);}
+      #else
+          BORK!
+      #endif
+      ]
+   )]
+  ,[CPU_BITS="-mx32"]
+   [CPU_BIT_STR="32"]
+   [AC_MSG_RESULT([yes])]
+   ,
+)
+
 if test "x${CPU_BITS}" = x-m64 ; then
   JTR_SET_64_INCLUDES
 fi
 
+if test "x${CPU_BITS}" = x-mx32 ; then
+	JTR_SET_X32_INCLUDES
+fi
+
 dnl Checks for programs.
 AC_PROG_LN_S
 AC_PROG_GREP