Second try. Unlike adjusting the gcc/cp fragment, I can't imagine
this has any other side effects.
Tested on x86_64-linux. Committed.
r~
diff --git a/ChangeLog b/ChangeLog
index b9d08f3..a8019b3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2012-01-05 Richard Henderson <r...@redhat.com>
+
+ PR bootstrap/51072
+ * configure.ac: Disable libitm if c++ is not enabled.
+ * configure: Rebuild.
+
2012-01-02 Balaji V. Iyer <bvi...@gmail.com>
* MAINTAINERS (Write After Approval): Add myself.
diff --git a/configure b/configure
index fd6defa..d970c1d 100755
--- a/configure
+++ b/configure
@@ -6473,6 +6473,14 @@ case ,${enable_languages},:${enable_objc_gc} in
;;
esac
+# Disable libitm if we're not building C++
+case ,${enable_languages}, in
+ *,c++) ;;
+ *)
+ noconfigdirs="$noconfigdirs target-libitm"
+ ;;
+esac
+
# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
# $build_configdirs and $target_configdirs.
# If we have the source for $noconfigdirs entries, add them to $notsupp.
diff --git a/configure.ac b/configure.ac
index 9fee563..b97c505 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1982,6 +1982,14 @@ case ,${enable_languages},:${enable_objc_gc} in
;;
esac
+# Disable libitm if we're not building C++
+case ,${enable_languages}, in
+ *,c++) ;;
+ *)
+ noconfigdirs="$noconfigdirs target-libitm"
+ ;;
+esac
+
# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
# $build_configdirs and $target_configdirs.
# If we have the source for $noconfigdirs entries, add them to $notsupp.
