не могу обновить систему

добрый день. Не могу обновить систему, а именно собрать пакет

* Сборка media-libs/freeglut-3.0.0 ...                                   [ ok ]
In file included from /var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0/include/GL/freeglut_std.h:143:0,
                 from /var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0/include/GL/freeglut.h:17,
                 from /var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0/src/fg_cursor.c:28:
/usr/include/GL/gl.h:2055:22: fatal error: GL/glext.h: No such file or directory
 #include <GL/glext.h>
                      ^
compilation terminated.
CMakeFiles/freeglut.dir/build.make:86: recipe for target 'CMakeFiles/freeglut.dir/src/fg_cursor.c.o' failed
make[2]: *** [CMakeFiles/freeglut.dir/src/fg_cursor.c.o] Error 1
make[2]: *** Waiting for unfinished jobs....
CMakeFiles/freeglut.dir/build.make:110: recipe for target 'CMakeFiles/freeglut.dir/src/fg_display.c.o' failed
make[2]: *** [CMakeFiles/freeglut.dir/src/fg_display.c.o] Error 1
CMakeFiles/freeglut.dir/build.make:62: recipe for target 'CMakeFiles/freeglut.dir/src/fg_callbacks.c.o' failed
make[2]: *** [CMakeFiles/freeglut.dir/src/fg_callbacks.c.o] Error 1
make[2]: Leaving directory '/var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0-abi_x86_32.x86'
CMakeFiles/Makefile2:289: recipe for target 'CMakeFiles/freeglut.dir/all' failed
make[1]: *** [CMakeFiles/freeglut.dir/all] Error 2
make[1]: Leaving directory '/var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0-abi_x86_32.x86'
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
 * ERROR: media-libs/freeglut-3.0.0::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=media-libs/freeglut-3.0.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=media-libs/freeglut-3.0.0::gentoo'`.
 * The complete build log is located at '/var/calculate/tmp/portage/media-libs/freeglut-3.0.0/temp/build.log'.
 * The ebuild environment file is located at '/var/calculate/tmp/portage/media-libs/freeglut-3.0.0/temp/environment'.
 * Working directory: '/var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0-abi_x86_32.x86'
 * S: '/var/calculate/tmp/portage/media-libs/freeglut-3.0.0/work/freeglut-3.0.0'

 * Не удалось собрать media-libs/freeglut-3.0.0::gentoo
 * Не удалось обновить

Помогите пожалуйста.

Почему может не имется заголовочного файла от opengl, если он установлен?