Grab a copy of ANGLE (for hardware rendering via D3D9/D3D11) or Mesa (for software rendering).
Both provide EGL and OpenGL ES 2.0 implementations.
Pregunta
What do I need to do to get libEGL.lib on windows7?
Google is telling me I already should have OpenGL by default, but I need to link against a 32 bit version of libegl.lib to compile QtWebKit
Otros consejos
Another option is to use PowerVR SDK: http://www.imgtec.com/powervr/insider/sdkdownloads/index.asp
there is implementation for GLES2.0 and GLES 3.0 as well