diff -urN boost_1_65_1.orig/tools/build/src/build-system.jam boost_1_65_1/tools/build/src/build-system.jam
--- boost_1_65_1.orig/tools/build/src/build-system.jam	2017-10-22 13:24:50.667149785 +0100
+++ boost_1_65_1/tools/build/src/build-system.jam	2017-10-22 13:25:15.533866314 +0100
@@ -331,9 +331,28 @@
             test-config = ;
         }
     }
+    local cb-prefix = ;
+    if [ os.environ CONDA_PREFIX ]
+    {
+        cb-prefix = [ os.environ CONDA_PREFIX ] ;
+    }
+    if $(.debug-config)
+    {
+        ECHO "notice: cb-prefix detected as: $(cb-prefix)" ;
+    }
 
-    local user-path = [ os.home-directories ] [ os.environ BOOST_BUILD_PATH ] ;
-    local site-path = /etc $(user-path) ;
+    local user-path ;
+    local site-path ;
+    if ! $(cb-prefix) in ""
+    {
+        user-path = [ os.environ BOOST_BUILD_PATH ] ;
+        site-path = "$(cb-prefix)/etc" $(user-path) ;
+    }
+    else
+    {
+        user-path = [ os.home-directories ] [ os.environ BOOST_BUILD_PATH ] ;
+        site-path = /etc $(user-path) ;
+    }
     if [ os.name ] in NT CYGWIN
     {
         site-path = [ modules.peek : SystemRoot ] $(user-path) ;