-_mesa_update_histogram(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]);
-
-
-extern void _mesa_GetMinmax(GLenum target, GLboolean reset, GLenum format, GLenum types, GLvoid *values);
-
-extern void _mesa_GetHistogram(GLenum target, GLboolean reset, GLenum format, GLenum type, GLvoid *values);
-
-extern void _mesa_GetHistogramParameterfv(GLenum target, GLenum pname, GLfloat *params);
-
-extern void _mesa_GetHistogramParameteriv(GLenum target, GLenum pname, GLint *params);
-
-extern void _mesa_GetMinmaxParameterfv(GLenum target, GLenum pname, GLfloat *params);
-
-extern void _mesa_GetMinmaxParameteriv(GLenum target, GLenum pname, GLint *params);
-
-extern void _mesa_Histogram(GLenum target, GLsizei width, GLenum internalformat, GLboolean sink);
-
-extern void _mesa_Minmax(GLenum target, GLenum internalformat, GLboolean sink);
-
-extern void _mesa_ResetHistogram(GLenum target);
-
-extern void _mesa_ResetMinmax(GLenum target);
-
-extern void
-_mesa_update_minmax(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]);
-
-extern void
-_mesa_update_histogram(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]);
-
-extern void _mesa_init_histogram( GLcontext * ctx );