jack2: fix build issue with glibc

With glibc 2.16, we get following build error when building jack2:

  [193/247] cxx: tests/iodelay.cpp -> build/tests/iodelay.cpp.4.o
  ../tests/iodelay.cpp:171:43: error: 'UINT32_MAX' was not declared in this scope
  ../tests/iodelay.cpp:171:55: error: 'UINT32_MAX' was not declared in this scope
  ../tests/iodelay.cpp:172:44: error: 'UINT32_MAX' was not declared in this scope
  ../tests/iodelay.cpp:172:56: error: 'UINT32_MAX' was not declared in this scope

In glibc 2.17 or older version, Header <stdint.h> defines these macros
for C++ only if explicitly requested by defining __STDC_LIMIT_MACROS.

We can't use <cstdint> since it requires C++11 standard.

Fixes:

  http://autobuild.buildroot.net/results/369ce208ffea43dad75ba0a13469159b341e3bf5/

Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/jack2/0003-tests-define-__STDC_LIMIT_MACROS.patch

@@ -0,0 +1,41 @@
+From c971aaab74ca6e7d4ac3a06bd26e7309dfc5da45 Mon Sep 17 00:00:00 2001
+From: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
+Date: Mon, 22 Aug 2016 19:04:47 +0530
+Subject: [PATCH] tests: define __STDC_LIMIT_MACROS
+
+With glibc 2.16, we get following build error when building jack2:
+
+  [193/247] cxx: tests/iodelay.cpp -> build/tests/iodelay.cpp.4.o
+  ../tests/iodelay.cpp:171:43: error: 'UINT32_MAX' was not declared in this scope
+  ../tests/iodelay.cpp:171:55: error: 'UINT32_MAX' was not declared in this scope
+  ../tests/iodelay.cpp:172:44: error: 'UINT32_MAX' was not declared in this scope
+  ../tests/iodelay.cpp:172:56: error: 'UINT32_MAX' was not declared in this scope
+
+In glibc 2.17 or older version, Header <stdint.h> defines these macros
+for C++ only if explicitly requested by defining __STDC_LIMIT_MACROS.
+
+We can't use <cstdint> since it requires C++11 standard.
+
+This build issue found by Buildroot autobuilder.
+http://autobuild.buildroot.net/results/369/369ce208ffea43dad75ba0a13469159b341e3bf5/
+
+Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
+---
+ tests/iodelay.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/tests/iodelay.cpp b/tests/iodelay.cpp
+index 1ef470f..f5c5836 100644
+--- a/tests/iodelay.cpp
++++ b/tests/iodelay.cpp
+@@ -20,6 +20,7 @@
+ 
+ #include <stdlib.h>
+ #include <stdio.h>
++#define __STDC_LIMIT_MACROS
+ #include <stdint.h>
+ #include <math.h>
+ #include <unistd.h>
+-- 
+2.6.2
+