buildroot/package/qt/0004-fix-const-atomics.patch

From d4d07dac01796b2aa0fb501c14865cab7e42b3a9 Mon Sep 17 00:00:00 2001
From: Mischa Jonker <mischa.jonker@synopsys.com>
Date: Sun, 4 Nov 2012 11:42:04 +0100
Subject: [PATCH] Fix const-related build error in generic atomic ops

It's still not entirely const-correct though. In all other architectures
this is obfuscated through the use of inline asm (which the compiler
doesn't check). This patch obfuscates through const_cast
---
 src/corelib/arch/generic/qatomic_generic_unix.cpp |    8 ++++----
 src/corelib/arch/qatomic_generic.h                |    2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/corelib/arch/generic/qatomic_generic_unix.cpp b/src/corelib/arch/generic/qatomic_generic_unix.cpp
index 1c6cbf0..6fce81d 100644
--- a/src/corelib/arch/generic/qatomic_generic_unix.cpp
+++ b/src/corelib/arch/generic/qatomic_generic_unix.cpp
@@ -85,13 +85,13 @@ int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd)
 
 Q_CORE_EXPORT
 bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value,
-                                           void *expectedValue,
-                                           void *newValue)
+                                           const void *expectedValue,
+                                           const void *newValue)
 {
     bool returnValue = false;
     pthread_mutex_lock(&qAtomicMutex);
     if (*_q_value == expectedValue) {
-        *_q_value = newValue;
+        *_q_value = const_cast<void*>(newValue);
         returnValue = true;
     }
     pthread_mutex_unlock(&qAtomicMutex);
diff --git a/src/corelib/arch/qatomic_generic.h b/src/corelib/arch/qatomic_generic.h
index 621a767..4c14679 100644
--- a/src/corelib/arch/qatomic_generic.h
+++ b/src/corelib/arch/qatomic_generic.h
@@ -105,7 +105,7 @@ Q_CORE_EXPORT bool QBasicAtomicInt_testAndSetOrdered(volatile int *, int, int);
 Q_CORE_EXPORT int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *, int);
 Q_CORE_EXPORT int QBasicAtomicInt_fetchAndAddOrdered(volatile int *, int);
 
-Q_CORE_EXPORT bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *, void *, void *);
+Q_CORE_EXPORT bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *, const void *, const void *);
 Q_CORE_EXPORT void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *, void *);
 Q_CORE_EXPORT void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *, qptrdiff);
 
-- 
1.7.0.4