diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 1c9a17bb7f2..9430c9cf941 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-29  Benjamin Kosnik  <bkoz@redhat.com>
+
+	* include/bits/c++config: Remove space between '#' and 'undef' for
+	_GLIBCXX_LONG_DOUBLE_COMPAT.
+
 2008-04-29  Joseph Myers  <joseph@codesourcery.com>
 
 	* Makefile.am (install-html, install-pdf): Add dummy targets.
diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index 7b2ce7798a1..b15b08d9a71 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -213,7 +213,7 @@ namespace std
 // XXX GLIBCXX_ABI Deprecated
 // Define if compatibility should be provided for -mlong-double-64
 #if defined __cplusplus && defined __LONG_DOUBLE_128__ 
-# undef _GLIBCXX_LONG_DOUBLE_COMPAT
+#undef _GLIBCXX_LONG_DOUBLE_COMPAT
 #endif
 
 // Namespace associations for long double 128 mode.