diff --git a/include/wx/platform.h b/include/wx/platform.h
index 51f7807b66..afe6864097 100644
--- a/include/wx/platform.h
+++ b/include/wx/platform.h
@@ -320,16 +320,10 @@
 
 /*
    test for old versions of Borland C, normally need at least 5.82, Turbo
-   explorer, available for free at http://www.turboexplorer.com/downloads
+   explorer, available for free at https://downloads.embarcadero.com/free/c_builder
 */
-#if defined(__BORLANDC__) && (__BORLANDC__ < 0x550)
-#   error "wxWidgets requires a newer version of Borland, we recommend upgrading to 5.82 (Turbo Explorer). You may at your own risk remove this line and try building but be prepared to get build errors."
-#endif /* __BORLANDC__ */
-
-#if defined(__BORLANDC__) && (__BORLANDC__ < 0x582) && (__BORLANDC__ > 0x559)
-#   ifndef _USE_OLD_RW_STL
-#       error "wxWidgets is incompatible with default Borland C++ 5.6 STL library, please add -D_USE_OLD_RW_STL to your bcc32.cfg to use RogueWave STL implementation."
-#   endif
+#if defined(__BORLANDC__) && (__BORLANDC__ < 0x582)
+#   error "wxWidgets requires a newer version of Borland, we require upgrading to 5.82 (Turbo Explorer). You may at your own risk remove this line and try building but be prepared to get build errors."
 #endif /* __BORLANDC__ */