From fe1a20404b19d5dd0cd0988d080cff8a455c2a76 Mon Sep 17 00:00:00 2001
From: Andrew Hsieh <andrewhsieh@google.com>
Date: Thu, 7 Mar 2013 21:27:51 +0800
Subject: GNU libstdc++ --enable-linux-futex

Change-Id: Ib97053768252b05decd513825ae45757b220f7d4
---
 gcc-4.4.3/libstdc++-v3/configure          | 12 ++++++++++++
 gcc-4.4.3/libstdc++-v3/libsupc++/guard.cc |  5 +++++
 2 files changed, 17 insertions(+)

(limited to 'gcc-4.4.3')

diff --git a/gcc-4.4.3/libstdc++-v3/configure b/gcc-4.4.3/libstdc++-v3/configure
index 6922a6c7a..31f1083c0 100755
--- a/gcc-4.4.3/libstdc++-v3/configure
+++ b/gcc-4.4.3/libstdc++-v3/configure
@@ -113618,6 +113618,12 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <sys/syscall.h>
 	   int lk;
+#if !defined(SYS_gettid)
+#define SYS_gettid __NR_gettid
+#endif
+#if !defined(SYS_futex)
+#define SYS_futex __NR_futex
+#endif
 int
 main ()
 {
@@ -113737,6 +113743,12 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <sys/syscall.h>
 	   int lk;
+#if !defined(SYS_gettid)
+#define SYS_gettid __NR_gettid
+#endif
+#if !defined(SYS_futex)
+#define SYS_futex __NR_futex
+#endif
 int
 main ()
 {
diff --git a/gcc-4.4.3/libstdc++-v3/libsupc++/guard.cc b/gcc-4.4.3/libstdc++-v3/libsupc++/guard.cc
index 10f909215..37b0ffdd6 100644
--- a/gcc-4.4.3/libstdc++-v3/libsupc++/guard.cc
+++ b/gcc-4.4.3/libstdc++-v3/libsupc++/guard.cc
@@ -33,7 +33,12 @@
 #if defined(__GTHREADS) && defined(__GTHREAD_HAS_COND) \
     && defined(_GLIBCXX_ATOMIC_BUILTINS_4) && defined(_GLIBCXX_HAVE_LINUX_FUTEX)
 # include <climits>
+#if defined(__ANDROID__)
+# include <sys/syscall.h>
+# define SYS_futex __NR_futex
+#else
 # include <syscall.h>
+#endif
 # define _GLIBCXX_USE_FUTEX
 # define _GLIBCXX_FUTEX_WAIT 0
 # define _GLIBCXX_FUTEX_WAKE 1
-- 
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