diff --git a/Jamfile.jam b/Jamfile.jam
index e3e5e9b..2a56740 100644
--- a/Jamfile.jam
+++ b/Jamfile.jam
@@ -15,7 +15,7 @@ if ( ! $(toolset) )
 {
 	if ( $(UNIX) )
 	{
-		toolset = "gcc" ;
+		toolset = "gcc" [ Shell "gcc -dumpversion" ] ;
 	}
 	else
 	{
diff --git a/tests/autotest-local.pl b/tests/autotest-local.pl
index ebe785d..0bb55a6 100644
--- a/tests/autotest-local.pl
+++ b/tests/autotest-local.pl
@@ -17,7 +17,7 @@ sub permute
 
 sub gcctoolset
 {
-	return 'gcc' . `gcc -dumpversion`;
+	return 'gcc' . chomp(`gcc -dumpversion`);
 }
 
 $fast = (shift eq 'fast');