Fix #3464 (#3465)

src/renderer_gl.cpp

@@ -2968,12 +2968,14 @@ namespace bgfx { namespace gl
 					|| s_extension[Extension::EXT_shadow_samplers].m_supported
 					;
 
+				GLint numFormats = 0;
+				GL_CHECK(glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS, &numFormats) );
 				m_programBinarySupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
 					&& (m_gles3
 						|| s_extension[Extension::ARB_get_program_binary].m_supported
 						|| s_extension[Extension::OES_get_program_binary].m_supported
 						|| s_extension[Extension::IMG_shader_binary     ].m_supported
-						);
+						) && numFormats > 0;
 
 				m_textureSwizzleSupport = false
 					|| s_extension[Extension::ARB_texture_swizzle].m_supported