diff --git a/include/boost/python/detail/wrap_python.hpp b/include/boost/python/detail/wrap_python.hpp
index 6ca45eee..60448ac9 100644
--- a/include/boost/python/detail/wrap_python.hpp
+++ b/include/boost/python/detail/wrap_python.hpp
@@ -48,7 +48,7 @@
 #endif
 
 # include <pyconfig.h>
-# if defined(_SGI_COMPILER_VERSION) && _SGI_COMPILER_VERSION == 741
+# if defined(_SGI_COMPILER_VERSION) && _SGI_COMPILER_VERSION >= 740
 #  undef _POSIX_C_SOURCE
 #  undef _XOPEN_SOURCE
 # endif
diff --git a/include/boost/python/type_id.hpp b/include/boost/python/type_id.hpp
index fecf8b8d..559a38b5 100755
--- a/include/boost/python/type_id.hpp
+++ b/include/boost/python/type_id.hpp
@@ -89,7 +89,7 @@ inline type_info type_id(BOOST_EXPLICIT_TEMPLATE_TYPE(T))
 }
 
 #  if (defined(__EDG_VERSION__) && __EDG_VERSION__ < 245) \
-   || (defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 741)
+   || (defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 744)
 // Older EDG-based compilers seems to mistakenly distinguish "int" from
 // "signed int", etc., but only in typeid() expressions. However
 // though int == signed int, the "signed" decoration is propagated