title: error: GLES/gl.h: No such file or directory
body: <p>I am getting this the following error when I am trying to use OpenGL in JNI</p>
  
  <pre><code>Compile++ thumb  : itv &lt;= native.cpp
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:1:50: warning: extra tokens at end
   of #include directive
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:3:21: error: GLES/gl.h: No such fi
  le or directory
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:4:24: error: GLES/glext.h: No such
   file or directory
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:15:1: warning: "No_Threads" redefi
  ned
  In file included from C:/workspace/InternetTV_OpenGL/jni/native.cpp:9:
  C:/workspace/InternetTV_OpenGL/jni/internetTV/MPEG2_REF_OPT/global.h:32:1: warni
  ng: this is the location of the previous definition
  In file included from C:/workspace/InternetTV_OpenGL/jni/native.cpp:1:
  C:/workspace/InternetTV_OpenGL/jni/internetTV_openGL_VideoGLSurfaceView.h:48: er
  ror: 'CALLBACK_FN_RENDER_VIDEO' has not been declared
  C:/workspace/InternetTV_OpenGL/jni/internetTV_openGL_VideoGLSurfaceView.h:51: er
  ror: 'CALLBACK_FN_RENDER_VIDEO' has not been declared
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:23: error: 'GLuint' does not name
  a type
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:24: error: 'GLuint' does not name
  a type
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:34: error: 'GLfloat' does not name
   a type
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:48: error: 'GLfloat' does not name
   a type
  C:/workspace/InternetTV_OpenGL/jni/native.cpp: In function 'void Java_internetTV
  _openGL_VideoGLSurfaceView_native_1gl_1render(JNIEnv*, _jobject*)':
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:91: error: 'GL_COLOR_BUFFER_BIT' w
  as not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:91: error: 'GL_DEPTH_BUFFER_BIT' w
  as not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:91: error: 'glClear' was not decla
  red in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:92: error: 'GL_MODELVIEW' was not
  declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:92: error: 'glMatrixMode' was not
  declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:93: error: 'glLoadIdentity' was no
  t declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:95: error: 'GL_VERTEX_ARRAY' was n
  ot declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:95: error: 'glEnableClientState' w
  as not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:96: error: 'GL_TEXTURE_COORD_ARRAY
  ' was not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:97: error: 'GL_FLOAT' was not decl
  ared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:97: error: 'vertices' was not decl
  ared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:97: error: 'glVertexPointer' was n
  ot declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:98: error: 'texCoords' was not dec
  lared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:98: error: 'glTexCoordPointer' was
   not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:99: error: 'GL_TRIANGLE_STRIP' was
   not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:99: error: 'glDrawArrays' was not
  declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:100: error: 'GL_DEPTH_TEST' was no
  t declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:100: error: 'glDisable' was not de
  clared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:104: error: 'glDisableClientState'
   was not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp: In function 'void grabFrame()':
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:125: error: 'GL_TEXTURE_2D' was no
  t declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:125: error: 'GL_RGBA' was not decl
  ared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:125: error: 'GL_UNSIGNED_BYTE' was
   not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:125: error: 'glTexImage2D' was not
   declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp: In function 'void Java_kieran_ple
  asework_VideoGLSurfaceView_native_1init(JNIEnv*, _jobject*, _jstring*)':
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:132: error: 'GL_TEXTURE_2D' was no
  t declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:132: error: 'glEnable' was not dec
  lared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:133: error: 'GL_BLEND' was not dec
  lared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:133: error: 'glDisable' was not de
  clared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:136: error: 'textureId' was not de
  clared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:136: error: 'glGenTextures' was no
  t declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:137: error: 'i' was not declared i
  n this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:140: error: 'glBindTexture' was no
  t declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:143: error: 'GL_TEXTURE_MIN_FILTER
  ' was not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:143: error: 'GL_LINEAR' was not de
  clared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:143: error: 'glTexParameteri' was
  not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:144: error: 'GL_TEXTURE_MAG_FILTER
  ' was not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:145: error: 'GL_TEXTURE_WRAP_S' wa
  s not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:145: error: 'GL_CLAMP_TO_EDGE' was
   not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:146: error: 'GL_TEXTURE_WRAP_T' wa
  s not declared in this scope
  C:/workspace/InternetTV_OpenGL/jni/native.cpp:180: error: cannot convert 'void (
  *)(unsigned char*, long unsigned int, unsigned int, unsigned int, unsigned int)'
   to 'int*' for argument '2' to 'int main_dec(char*, int*)'
  make: *** [/cygdrive/c/workspace/InternetTV_OpenGL/obj/local/armeabi/objs/itv/na
  tive.o] Error 1
  </code></pre>
  
  <p>I have also added <code>LOCAL_LDLIBS := -llog -lGLESv1_CM</code> in Android.mk file
  I don’t know why such type of error is coming.
  Can anybody please help me to solve this problem?</p>