diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3dfa1bbbc07d193f5116e8287fb822c2f72c340f..2a7d1aa01b18d86443c4acca9bd30e9b2c73a2f7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-10-20  Pascal Obry  <obry@adacore.com>
+	    Eric Botcazou  <ebotcazou@adacore.com>
+
+	* config/i386/cygming.h (DWARF_FRAME_REGNUM): Add enclosing parens.
+
 2009-10-20  Michael Matz  <matz@suse.de>
 
 	* loop-invariant.c (create_new_invariant): Use different magic number.
diff --git a/gcc/config/i386/cygming.h b/gcc/config/i386/cygming.h
index 43003cc5cad30de1c95bb1ef75778b180efaa859..fd81e9e598d6f438b0325f8e96ef2fda0da9796a 100644
--- a/gcc/config/i386/cygming.h
+++ b/gcc/config/i386/cygming.h
@@ -49,8 +49,9 @@ along with GCC; see the file COPYING3.  If not see
    target, always use the svr4_dbx_register_map for DWARF .eh_frame
    even if we don't use DWARF .debug_frame. */
 #undef DWARF_FRAME_REGNUM
-#define DWARF_FRAME_REGNUM(n) TARGET_64BIT \
-	? dbx64_register_map[(n)] : svr4_dbx_register_map[(n)] 
+#define DWARF_FRAME_REGNUM(n)				\
+	(TARGET_64BIT ? dbx64_register_map[(n)]		\
+		      : svr4_dbx_register_map[(n)])
 
 #ifdef HAVE_GAS_PE_SECREL32_RELOC
 /* Use section relative relocations for debugging offsets.  Unlike