diff -up qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/jsruntime.pri.no_sse2 qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/jsruntime.pri
--- qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/jsruntime.pri.no_sse2 2015-06-29 15:12:38.000000000 -0500
+++ qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/jsruntime.pri 2015-07-16 08:49:00.280760307 -0500
@@ -111,6 +111,11 @@ SOURCES += \
$$PWD/qv4string.cpp \
$$PWD/qv4value.cpp
+linux-g++*:isEqual(QT_ARCH,i386):!no_sse2 {
+ QMAKE_CFLAGS += -msse2 -mfpmath=sse
+ QMAKE_CXXFLAGS += -msse2 -mfpmath=sse
+}
+
valgrind {
DEFINES += V4_USE_VALGRIND
}
diff -up qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4global_p.h.no_sse2 qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4global_p.h
--- qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4global_p.h.no_sse2 2015-06-29 15:12:38.000000000 -0500
+++ qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4global_p.h 2015-07-16 08:49:00.280760307 -0500
@@ -74,7 +74,7 @@ inline double trunc(double d) { return d
//
// NOTE: This should match the logic in qv4targetplatform_p.h!
-#if defined(Q_PROCESSOR_X86) && !defined(__ILP32__) \
+#if defined(Q_PROCESSOR_X86) && !defined(__ILP32__) && defined(__SSE2__) \
&& (defined(Q_OS_WIN) || defined(Q_OS_LINUX) || defined(Q_OS_QNX) || defined(Q_OS_FREEBSD))
#define V4_ENABLE_JIT
#elif defined(Q_PROCESSOR_X86_64) && !defined(__ILP32__) \
diff -up qtdeclarative-opensource-src-5.5.0/src/qml/qml/v8/qv8engine.cpp.no_sse2 qtdeclarative-opensource-src-5.5.0/src/qml/qml/v8/qv8engine.cpp
--- qtdeclarative-opensource-src-5.5.0/src/qml/qml/v8/qv8engine.cpp.no_sse2 2015-06-29 15:12:39.000000000 -0500
+++ qtdeclarative-opensource-src-5.5.0/src/qml/qml/v8/qv8engine.cpp 2015-07-16 08:49:00.280760307 -0500
@@ -123,7 +123,7 @@ QV8Engine::QV8Engine(QJSEngine* qq)
, m_xmlHttpRequestData(0)
, m_listModelData(0)
{
-#ifdef Q_PROCESSOR_X86_32
+#if defined(Q_PROCESSOR_X86_32) && defined(__SSE2__)
if (!qCpuHasFeature(SSE2)) {
qFatal("This program requires an X86 processor that supports SSE2 extension, at least a Pentium 4 or newer");
}