From 1a26b354c6eb86ccd8a676aa61a7739d7d3fe6c7 Mon Sep 17 00:00:00 2001
From: "ek.kato" <ek.kato@ff9ab193-ed19-0410-b3e9-fd3dc8ba15a0>
Date: Wed, 24 Nov 2010 06:47:14 +0000
Subject: [PATCH] * Merge r5427 from libgcroots-trunk.

---
 configure.ac | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 322303f..48d4861 100644
--- a/configure.ac
+++ b/configure.ac
@@ -376,7 +376,13 @@ AC_SUBST(CXX)
 AC_SUBST(INCLUDES)
 AC_SUBST(CXXINCLUDES)
 
-AX_FUNC_GETCONTEXT
+# Since glibc has a stub implementation of getcontext(3), AX_FUNC_GETCONTEXT
+# does not work as expected on such environments. But on such environtments,
+# AC_CHECK_FUNCS() can detect whether the platform has working
+# getcontext(3). See [sigscheme-ja 17] by NIIBE Yutaka for further details.
+#   -- YamaKen 2008-04-21
+# AX_FUNC_GETCONTEXT
+AC_CHECK_FUNCS([getcontext])
 
 # Configuration of shared libraries
 #