From f25d6ad2aa4c7e4c4884dd469c631fafd207ef8f Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Fri, 20 Mar 2015 23:48:02 +0900
Subject: forkfd: Fix compilation with older glibc

glibc 2.9 is required for pipe2 and version 2.7 for eventfd.

Bionic added them to Android version 2.3.1, but I can't find a version
macro.

uclibc masquerades as glibc version 2.2, so this function won't be
thread-safe with uclibc.

Change-Id: Iee8cbc07c4434ce9b560ffff13cd3c3b63dd7e83
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
---
 src/3rdparty/forkfd/forkfd.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/3rdparty/forkfd/forkfd.c b/src/3rdparty/forkfd/forkfd.c
index 5710608d6d..017ae0741e 100644
--- a/src/3rdparty/forkfd/forkfd.c
+++ b/src/3rdparty/forkfd/forkfd.c
@@ -41,9 +41,13 @@
 #include <unistd.h>
 
 #ifdef __linux__
-#  define HAVE_PIPE2    1
-#  define HAVE_EVENTFD  1
-#  include <sys/eventfd.h>
+#  if (defined(__GLIBC__) && (__GLIBC__ << 16) + __GLIBC_MINOR__ >= 0x207) || defined(__BIONIC__)
+#    include <sys/eventfd.h>
+#    define HAVE_EVENTFD  1
+#  endif
+#  if (defined(__GLIBC__) && (__GLIBC__ << 16) + __GLIBC_MINOR__ >= 0x209) || defined(__BIONIC__)
+#    define HAVE_PIPE2    1
+#  endif
 #endif
 
 #if _POSIX_VERSION-0 >= 200809L || _XOPEN_VERSION-0 >= 500
-- 
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