QOpenGLShader: could not create shader

[samdol]

Hi,

I created MyGLWidget like:
class MyGLWidget: public QOpenGLWidget, protected QOpenGLFunctions
{
Q_OBJECT
public:
MyGLWidget: ();
protected:
void initializeGL() Q_DECL_OVERRIDE;
}
void MyGLWidget::initializeGL()
{
initializeOpenGLFunctions();

glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);

glEnable(GL_TEXTURE_2D);
glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
glDepthFunc(GL_LEQUAL);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
m_v = new QOpenGLShader(QOpenGLShader::Vertex);
m_f = new QOpenGLShader(QOpenGLShader::Fragment);

}

When I ran this code on Qt from qt-opensource-windows-x86-mingw492-5.6.2.exe, it run without any issue.
But when I run it on Qt built by myself statically, it gives me an error message:
"""
QOpenGLShader: could not create shader
QOpenGLShader: could not create shader
"""
I am not sure what cause this runtime error.

When I built static-Qt, I used the following configuration and mingw64.
configure -prefix C:\Qt\5.6.2 -static -release -platform win32-g++ -nomake examples -nomake tests -opengl desktop
Do I have to configure differently to fix this problem?