alloca() is declared in stdlib.h on BSD systems

... except on Darwin.

Bonus change: Updated auto-tests trying to include 'alloca.h'.

This is a follow up on 24c43a5748.

Change-Id: I299de00bf0dca7842470b158282daea221a10f2d
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

src/qml/jsruntime/qv4alloca_p.h

@@ -49,10 +49,8 @@
 #  ifndef __GNUC__
 #    define alloca _alloca
 #  endif
-#else
-#if !defined(__FreeBSD__) && !defined(__DragonFly__)
+#elif !defined(Q_OS_BSD4) || defined(Q_OS_DARWIN)
 #  include <alloca.h>
 #endif
-#endif
 
 #endif

tests/auto/qml/qjsengine/tst_qjsengine.cpp

@@ -48,6 +48,7 @@
 #include <qstandarditemmodel.h>
 #include <QtCore/qnumeric.h>
 #include <stdlib.h>
+#include <private/qv4alloca_p.h>
 
 #ifdef Q_CC_MSVC
 #define NO_INLINE __declspec(noinline)
@@ -55,12 +56,6 @@
 #define NO_INLINE __attribute__((noinline))
 #endif
 
-#if defined(Q_OS_WIN)
-#include <malloc.h>
-#else
-#include <alloca.h>
-#endif
-
 Q_DECLARE_METATYPE(QList<int>)
 Q_DECLARE_METATYPE(QObjectList)
 

tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp

@@ -55,6 +55,7 @@
 #include "../../shared/util.h"
 #include <private/qv4functionobject_p.h>
 #include <private/qv4scopedvalue_p.h>
+#include <private/qv4alloca_p.h>
 
 #ifdef Q_CC_MSVC
 #define NO_INLINE __declspec(noinline)
@@ -62,12 +63,6 @@
 #define NO_INLINE __attribute__((noinline))
 #endif
 
-#if defined(Q_OS_WIN)
-#include <malloc.h>
-#else
-#include <alloca.h>
-#endif
-
 /*
 This test covers evaluation of ECMAScript expressions and bindings from within
 QML.  This does not include static QML language issues.