I get this when trying to compile 'make'Making all in testsmake[1]: Entering directory `/usr/local/source/FlightGear-0.9.8/tests'if gcc -DHAVE_CONFIG_H -I. -I. -I../src/Include -I/usr/X11R6/include -I/usr/local//include -g -O2 -D_REENTRANT -MT est-epsilon.o -MD -MP -MF ".deps/est-epsilon.Tpo" -c -o est-epsilon.o est-epsilon.c; then mv -f ".deps/est-epsilon.Tpo" ".deps/est-epsilon.Po"; else rm -f ".deps/est-epsilon.Tpo"; exit 1; fiest-epsilon.c:13:19: GL/glut.h: No such file or directoryest-epsilon.c: In function `main':est-epsilon.c:17: error: `GLfloat' undeclared (first use in this function)est-epsilon.c:17: error: (Each undeclared identifier is reported only onceest-epsilon.c:17: error: for each function it appears in.)est-epsilon.c:17: error: syntax error before "a"est-epsilon.c:19: error: `a' undeclared (first use in this function)est-epsilon.c:24: error: `t' undeclared (first use in this function)make[1]: *** [est-epsilon.o] Error 1make[1]: Leaving directory `/usr/local/source/FlightGear-0.9.8/tests'make: *** [all-recursive] Error 1Yes it dosent work, and when I try to 'make' it under the src folder I get this:Making all in Includemake[1]: Entering directory `/usr/local/source/FlightGear-0.9.8/src/Include'make all-ammake[2]: Entering directory `/usr/local/source/FlightGear-0.9.8/src/Include'make[2]: Leaving directory `/usr/local/source/FlightGear-0.9.8/src/Include'make[1]: Leaving directory `/usr/local/source/FlightGear-0.9.8/src/Include'Making all in Aircraftmake[1]: Entering directory `/usr/local/source/FlightGear-0.9.8/src/Aircraft'if g++ -DHAVE_CONFIG_H -I. -I. -I../../src/Include -I../.. -I../../src -I/usr/X 11R6/include -I/usr/local//include -g -O2 -D_REENTRANT -MT aircraft.o -MD -MP - MF ".deps/aircraft.Tpo" -c -o aircraft.o aircraft.cxx; then mv -f ".deps/aircraft.Tpo" ".deps/aircraft.Po"; else rm -f ".deps/aircraft. Tpo"; exit 1; fiIn file included from /usr/include/plib/pu.h:2142, from ../../src/GUI/gui.h:36, from ../../src/Cockpit/hud.hxx:59, from aircraft.cxx:39:/usr/include/plib/puGLUT.h:36:22: GL/glut.h: No such file or directoryIn file included from /usr/include/plib/pu.h:2142, from ../../src/GUI/gui.h:36, from ../../src/Cockpit/hud.hxx:59, from aircraft.cxx:39:/usr/include/plib/puGLUT.h: In function `int puGetWindowGLUT()':/usr/include/plib/puGLUT.h:42: error: `glutGetWindow' undeclared (first use this function)/usr/include/plib/puGLUT.h:42: error: (Each undeclared identifier is reported on ly once for each function it appears in.)/usr/include/plib/puGLUT.h: In function `void puSetWindowGLUT(int)':/usr/include/plib/puGLUT.h:47: error: `glutSetWindow' undeclared (first use this function)/usr/include/plib/puGLUT.h: In function `void puGetWindowSizeGLUT(int*, int*)':/usr/include/plib/puGLUT.h:52: error: `GLUT_WINDOW_WIDTH' undeclared (first use this function)/usr/include/plib/puGLUT.h:52: error: `glutGet' undeclared (first use this funct ion)/usr/include/plib/puGLUT.h:53: error: `GLUT_WINDOW_HEIGHT' undeclared (first use this function)/usr/include/plib/puGLUT.h: In function `void puSetWindowSizeGLUT(int, int)':/usr/include/plib/puGLUT.h:58: error: `glutReshapeWindow' undeclared (first use this function)make[1]: *** [aircraft.o] Error 1make[1]: Leaving directory `/usr/local/source/FlightGear-0.9.8/src/Aircraft'make: *** [all-recursive] Error 1So what can I try now?

>est-epsilon.c:13:19: GL/glut.h: No such file or directory>/usr/include/plib/puGLUT.h:36:22: GL/glut.h: No such file or directory>So what can I try now?You can try to look at the error messages. Hint: installing glut may be helpful. Either your distributor's glut-devel package, or all of glut from here: http://freeglut.sf.net/.m.