4 files changed, 7 insertions, 0 deletions
diff --git a/src/opengl/qgl_qws.cpp b/src/opengl/qgl_qws.cpp
index de9c6ae..a189c20 100644
--- a/src/opengl/qgl_qws.cpp
+++ b/src/opengl/qgl_qws.cpp
@@ -207,6 +207,8 @@ bool QGLContext::chooseContext(const QGLContext* shareContext)
         return false;
     }
     d->sharing = d->eglContext->isSharing();
+    if (d->sharing && shareContext)
+        const_cast<QGLContext *>(shareContext)->d_func()->sharing = true;
 
 #if defined(EGL_VERSION_1_1)
     if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
diff --git a/src/opengl/qgl_wince.cpp b/src/opengl/qgl_wince.cpp
index 86fe3ba..2553110 100644
--- a/src/opengl/qgl_wince.cpp
+++ b/src/opengl/qgl_wince.cpp
@@ -167,6 +167,8 @@ bool QGLContext::chooseContext(const QGLContext* shareContext)
         return false;
     }
     d->sharing = d->eglContext->isSharing();
+    if (d->sharing && shareContext)
+        const_cast<QGLContext *>(shareContext)->d_func()->sharing = true;
 
 #if defined(EGL_VERSION_1_1)
     if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
diff --git a/src/opengl/qgl_x11egl.cpp b/src/opengl/qgl_x11egl.cpp
index 5325451..b51c239 100644
--- a/src/opengl/qgl_x11egl.cpp
+++ b/src/opengl/qgl_x11egl.cpp
@@ -116,6 +116,8 @@ bool QGLContext::chooseContext(const QGLContext* shareContext)
         return false;
     }
     d->sharing = d->eglContext->isSharing();
+    if (d->sharing && shareContext)
+        const_cast<QGLContext *>(shareContext)->d_func()->sharing = true;
 
 #if defined(EGL_VERSION_1_1)
     if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
diff --git a/tests/auto/qgl/tst_qgl.cpp b/tests/auto/qgl/tst_qgl.cpp
index 3745230..c25c05c 100644
--- a/tests/auto/qgl/tst_qgl.cpp
+++ b/tests/auto/qgl/tst_qgl.cpp
@@ -1729,6 +1729,7 @@ void tst_QGL::shareRegister()
         delete glw1;
         QSKIP("Context sharing is not supported", SkipSingle);
     }
+    QVERIFY(glw1->isSharing());
     QVERIFY(glw1->context() != glw2->context());
 
     // Check that the first context's resource is also on the second.