Removed linking against glut.

ChangeLog

@@ -833,3 +833,4 @@ Code:
    - added "copy" and "open" url functions
    - updated GConf schema with new options
    - fixed automake bug where GConf schema would always install
+   - removed linking against glut for no reason

configure.in

@@ -236,7 +236,7 @@ if (test "x$ac_cv_lib_GLU_gluLookAt" = "xno"); then
 fi
 
 
-if (test "$ui_gtk" != "no" -o "$ui_glut" = "yes"); then
+if ("$ui_glut" = "yes"); then
 	dnl Check for GLUT headers first.
 	AC_CHECK_HEADERS(GL/glut.h, ,
 	                 [AC_MSG_ERROR([No glut.h found. See INSTALL file for help.])])