diff -urN a/boostcpp.jam b/boostcpp.jam
--- a/boostcpp.jam	2018-04-11 15:48:55.000000000 +0200
+++ b/boostcpp.jam	2018-08-07 19:11:42.157340430 +0200
@@ -676,17 +676,19 @@
     return [ property.select <target-os> <toolset> $(toolset-version-property) : $(properties) ] ;
 }
 
-feature.feature deduced-address-model : 32 64 : propagated optional composite hidden ;
+feature.feature deduced-address-model : 32 32_64 64 : propagated optional composite hidden ;
 feature.compose <deduced-address-model>32 : <address-model>32 ;
+feature.compose <deduced-address-model>32_64 : <address-model>32_64 ;
 feature.compose <deduced-address-model>64 : <address-model>64 ;
 
 rule deduce-address-model ( properties * )
 {
     local result ;
     local filtered = [ toolset-properties $(properties) ] ;
-    local names = 32 64 ;
+    local names = 32 32_64 64 ;
     local idx = [ configure.find-builds "default address-model" : $(filtered)
         : /boost/architecture//32 "32-bit"
+        : /boost/architecture//32_64 "64-bit x32"
         : /boost/architecture//64 "64-bit" ] ;
     result = $(names[$(idx)]) ;
 
diff -urN a/libs/config/checks/architecture/32_64.cpp b/libs/config/checks/architecture/32_64.cpp
--- a/libs/config/checks/architecture/32_64.cpp	1970-01-01 01:00:00.000000000 +0100
+++ b/libs/config/checks/architecture/32_64.cpp	2018-08-07 19:06:34.208470887 +0200
@@ -0,0 +1,3 @@
+#if !defined(__x86_64__) || !defined(__ILP32__)
+#error "Not x86_64 x32 abi"
+#endif
diff -urN a/libs/config/checks/architecture/32.cpp b/libs/config/checks/architecture/32.cpp
--- a/libs/config/checks/architecture/32.cpp	2018-04-11 15:49:01.000000000 +0200
+++ b/libs/config/checks/architecture/32.cpp	2018-08-07 19:04:52.287247594 +0200
@@ -6,4 +6,7 @@
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
+#ifdef __x86_64__
+#error
+#endif
 int test[sizeof(void*) == 4? 1 : -1];
diff -urN a/libs/config/checks/architecture/64.cpp b/libs/config/checks/architecture/64.cpp
--- a/libs/config/checks/architecture/64.cpp	2018-04-11 15:49:01.000000000 +0200
+++ b/libs/config/checks/architecture/64.cpp	2018-08-07 19:03:53.235201959 +0200
@@ -6,4 +6,7 @@
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
+#ifdef __ILP32__
+#error
+#endif
 int test[sizeof(void*) == 8? 1 : -1];
diff -urN a/libs/config/checks/architecture/Jamroot.jam b/libs/config/checks/architecture/Jamroot.jam
--- a/libs/config/checks/architecture/Jamroot.jam	2018-04-11 15:49:01.000000000 +0200
+++ b/libs/config/checks/architecture/Jamroot.jam	2018-08-07 18:56:34.360302080 +0200
@@ -13,6 +13,7 @@
         ; 
 
 obj 32 : 32.cpp ;
+obj 32_64 : 32_64.cpp ;
 obj 64 : 64.cpp ;
 
 obj arm      : arm.cpp ;