--- SConstruct.orig	2015-08-18 15:46:59 UTC
+++ SConstruct
@@ -354,6 +354,30 @@ env_vars.Add('SHLINKFLAGS',
     help='Sets flags for the linker when building shared libraries',
     converter=variable_shlex_converter)
 
+env_vars.Add('CXX',
+    help='Sets path to the C++ compiler',
+    converter=variable_shlex_converter)
+
+env_vars.Add('CC',
+    help='Sets path to the C compiler',
+    converter=variable_shlex_converter)
+
+env_vars.Add('PREFIX',
+    help='Sets PREFIX path',
+    converter=variable_shlex_converter)
+
+env_vars.Add('PKGCONFIGDIR',
+    help='Sets PKGCONFIGDIR path',
+    converter=variable_shlex_converter)
+
+env_vars.Add('destdir',
+    help='Sets destdir path',
+    converter=variable_shlex_converter)
+
+env_vars.Add('DESTDIR',
+    help='Sets DESTDIR path',
+    converter=variable_shlex_converter)
+
 # don't run configure if user calls --help
 if GetOption('help'):
     Return()