diff --git a/configure b/configure
index f0afe1c6bf..82162e94b2 100755
--- a/configure
+++ b/configure
@@ -34369,12 +34369,6 @@ else
 
                     #include <stdio.h>
                     #include <stdarg.h>
-                    #ifdef __MSL__
-                    #if __MSL__ >= 0x6000
-                    namespace std {}
-                    using namespace std;
-                    #endif
-                    #endif
 
 int
 main ()
@@ -34476,12 +34470,6 @@ else
 
                     #include <stdio.h>
                     #include <stdarg.h>
-                    #ifdef __MSL__
-                    #if __MSL__ >= 0x6000
-                    namespace std {}
-                    using namespace std;
-                    #endif
-                    #endif
 
 int
 main ()
diff --git a/configure.in b/configure.in
index 7e8f5c4db8..1af9b74405 100644
--- a/configure.in
+++ b/configure.in
@@ -4285,12 +4285,6 @@ if test "$wx_cv_func_vsnprintf" = "yes"; then
                 [
                     #include <stdio.h>
                     #include <stdarg.h>
-                    #ifdef __MSL__
-                    #if __MSL__ >= 0x6000
-                    namespace std {}
-                    using namespace std;
-                    #endif
-                    #endif
                 ],
                 [
                     char *buf;
@@ -4359,12 +4353,6 @@ if test "$wx_cv_func_vsscanf" = "yes"; then
                 [
                     #include <stdio.h>
                     #include <stdarg.h>
-                    #ifdef __MSL__
-                    #if __MSL__ >= 0x6000
-                    namespace std {}
-                    using namespace std;
-                    #endif
-                    #endif
                 ],
                 [
                     const char *buf;
diff --git a/src/common/file.cpp b/src/common/file.cpp
index e94a30c814..25e01de558 100644
--- a/src/common/file.cpp
+++ b/src/common/file.cpp
@@ -54,11 +54,7 @@
     // Have to ifdef this for different environments
     #include <io.h>
 #elif (defined(__WXMAC__))
-#if __MSL__ < 0x6000
     int access( const char *path, int mode ) { return 0 ; }
-#else
-    int _access( const char *path, int mode ) { return 0 ; }
-#endif
     char* mktemp( char * path ) { return path ;}
     #include <stat.h>
     #include <unistd.h>
diff --git a/src/osx/carbon/graphics.cpp b/src/osx/carbon/graphics.cpp
index 77585ff9d0..cd19f3c928 100644
--- a/src/osx/carbon/graphics.cpp
+++ b/src/osx/carbon/graphics.cpp
@@ -24,15 +24,6 @@
 #endif
 
 
-#ifdef __MSL__
-    #if __MSL__ >= 0x6000
-        #include "math.h"
-        // in case our functions were defined outside std, we make it known all the same
-        namespace std { }
-        using namespace std;
-    #endif
-#endif
-
 #ifdef __WXMAC__
     #include "wx/osx/private.h"
     #include "wx/osx/dcprint.h"