On 09/01/2011 06:36 AM, Dodji Seketeli wrote:
+#ifdef ENABLE_CHECKING
+
+/* Assertion macro to be used in line-map code.  */
+#define linemap_assert(EXPR)                   \
+  do {                                         \
+    if (! (EXPR))                              \
+      abort ();                                        \
+  } while (0)
+
+/* Assert that MAP encodes locations of tokens that are not part of
+   the replacement-list of a macro expansion.  */
+#define linemap_check_ordinary(LINE_MAP) __extension__         \
+  ({linemap_assert (!linemap_macro_expansion_map_p (LINE_MAP)); \
+    (LINE_MAP);})

If you're going to use a statement-expression, you need to check that you're being compiled with GCC; tree.h uses

 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)

-         if (highest >0xF0000000)
+         if (highest > 0xF0000000)

Unnecessary whitespace change.

OK with those changes.

Jason

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