gcc 4.2.1 has tr1 unordered maps and sets

Author: romainfrancois

ChangeLog

@@ -2,6 +2,8 @@
 
 	* include/Rcpp/platform/compiler.h : patch submitted by Murray for better
 	support of long long type. 
+	* include/Rcpp/platform/compiler.h : gcc 4.2.1 has tr1/unordered_map 
+	and tr1/unordered_set. Previous test was for gcc 4.4.0 for some reason
 
 2013-08-31  Dirk Eddelbuettel  <edd@debian.org>
 

inst/include/Rcpp/platform/compiler.h

@@ -116,7 +116,7 @@
 // Check TR1 Headers
 #if defined(__INTEL_COMPILER) || (defined(__GNUC__) && !defined(__clang__))
     #if defined(__GLIBCXX__)
-        #if GCC_VERSION >= 40400
+        #if GCC_VERSION >= 40201
             #define HAS_TR1_UNORDERED_MAP
             #define HAS_TR1_UNORDERED_SET
         #endif