Context crash fix

gistfile1.diff

 src/SFML/Graphics/RenderTarget.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/SFML/Graphics/RenderTarget.cpp b/src/SFML/Graphics/RenderTarget.cpp
index e7ee147..69edd67 100644
--- a/src/SFML/Graphics/RenderTarget.cpp
+++ b/src/SFML/Graphics/RenderTarget.cpp
@@ -340,6 +340,8 @@ void RenderTarget::popGLStates()
 ////////////////////////////////////////////////////////////
 void RenderTarget::resetGLStates()
 {
+    bool shaderAvailable = Shader::isAvailable();
+
     if (activate(true))
     {
         // Make sure that extensions are initialized
@@ -362,7 +364,7 @@ void RenderTarget::resetGLStates()
         applyBlendMode(BlendAlpha);
         applyTransform(Transform::Identity);
         applyTexture(NULL);
-        if (Shader::isAvailable())
+        if (shaderAvailable)
             applyShader(NULL);
         m_cache.useVertexCache = false;