Qt/X11/BeagleBoard build error with "-opengl es1cl" backend

Not able to build Qt with X11 backend for "-opengl es1cl" profile.

I was trying building Qt with PowerVR provided Graphics SDK as well as with
our in-house OpenGL ES 1.x SDK.

I'm able to build Qt/QWS with "-opengl es1cl" profile in both the cases but
in Qt/X11 case it gave me the following build error:
-----------------------------------
make[1]: Entering directory `/home/amit/qt_master/qt_ppgles/src/opengl'
sb2 g++ -c -pipe -march=armv7-a -mtune=cortex-a8 -mfpu=neon
-mfloat-abi=softfp -O2 -Wall -W -D_REENTRANT -fPIC -DQT_SHARED
-DQT_BUILD_OPENGL_LIB -DQT_NO_USING_NAMESPACE -DQT_NO_CAST_TO_ASCII
-DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_NO_DEBUG -DQT_GUI_LIB
-DQT_CORE_LIB -I../../mkspecs/linux-beagle-x11-g++ -I.
-I../../include/QtCore -I../../include/QtGui -I../../include
-I../../include/QtOpenGL -I.rcc/release-shared -I../3rdparty/harfbuzz/src
-I/home/amit/opengles/code/repo/opt/include
-I/home/amit/opengles/code/repo/opt/include
-I/media/disk-2/beagle_OE/angstrom-dev/staging/armv7a-angstrom-linux-gnueabi/usr/include
-I.moc/release-shared
-I/media/disk-2/beagle_OE/angstrom-dev/staging/armv7a-angstrom-linux-gnueabi/usr/include
-o .obj/release-shared/qpixmapdata_x11gl_egl.o qpixmapdata_x11gl_egl.cpp
In file included from
../../include/QtOpenGL/private/qglcustomshaderstage_p.h:1,
from
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:229,
from
../../include/QtOpenGL/private/qglengineshadermanager_p.h:1,
from
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h:59,
from
../../include/QtOpenGL/private/qpaintengineex_opengl2_p.h:1,
from qpixmapdata_x11gl_egl.cpp:45:
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglcustomshaderstage_p.h:71:
error: 'QGLShaderProgram' has not been declared
In file included from
../../include/QtOpenGL/private/qglengineshadermanager_p.h:1,
from
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h:59,
from
../../include/QtOpenGL/private/qpaintengineex_opengl2_p.h:1,
from qpixmapdata_x11gl_egl.cpp:45:
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:348:
error: ISO C++ forbids declaration of 'QGLShaderProgram' with no type
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:348:
error: expected ';' before '*' token
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:349:
error: expected `;' before 'QGLShaderProgram'
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:349:
error: ISO C++ forbids declaration of 'QGLShaderProgram' with no type
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:349:
error: expected ';' before '*' token
../../include/QtOpenGL/private/../../../src/opengl/gl2paintengineex/qglengineshadermanager_p.h:351:
error: expected `;' before 'QGLEngineShaderProg'
------------------
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Since its an OpenGL ES1CL profile, I'm not really sure why it should look
for Shader code.

Reference: http://lists.trolltech.com/pipermail/qt-embedded-interest/2009-December/000767.html