From f3c8c7a09a526eb36fcbfcb70728c14e4ea2e46b Mon Sep 17 00:00:00 2001
From: root <root>
Date: Sun, 3 Jul 2011 10:51:42 +0000
Subject: 6.01

---
 coro.c | 3 +--
 coro.h | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/coro.c b/coro.c
index 7e69ab0..194cd46 100644
--- a/coro.c
+++ b/coro.c
@@ -88,8 +88,7 @@ coro_init (void)
 
   coro_transfer (new_coro, create_coro);
 
-#if __linux && __amd64
-  /* we blindly assume on any __linux with __amd64 we have a new enough gas with .cfi_undefined support */
+#if __GCC_HAVE_DWARF2_CFI_ASM && __amd64
   asm (".cfi_undefined rip");
 #endif
 
diff --git a/coro.h b/coro.h
index c5602bb..067a6d4 100644
--- a/coro.h
+++ b/coro.h
@@ -73,6 +73,7 @@
  * 2011-05-30 set initial callee-saved-registers to zero with CORO_ASM.
  *            use .cfi_undefined rip on linux-amd64 for better backtraces.
  * 2011-06-08 maybe properly implement weird windows amd64 calling conventions.
+ * 2011-07-03 rely on __GCC_HAVE_DWARF2_CFI_ASM for cfi detection.
  */
 
 #ifndef CORO_H
-- 
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