Jon Berndt writes:
>
> I've tried building the latest flightgear from CVS. I've updated to the
> latest version both plib and simgear and they build. However, when trying
> to build flightgear I get an error right away when trying to build the
> applications in test:
> gcc -L/usr/X11R6/lib -o gl-info.exe
> gl-info.o -lglut32 -lglu32 -lopengl32 -luser32 -lgdi32
> gl-info.o(.text+0x19):gl-info.c: undefined reference to `_glGetString'
> gl-info.o(.text+0x58):gl-info.c: undefined reference to `_glGetFloatv'
> gl-info.o(.text+0x9c):gl-info.c: undefined reference to `_glGetFloatv'
> gl-info.o(.text+0xdc):gl-info.c: undefined reference to `_glGetIntegerv'
> gl-info.o(.text+0x120):gl-info.c: undefined reference to `_glGetIntegerv'
I had the same problem working in a Cygwin bash shell
ended up making sure that the GLUT_H check in both SimGear's
and FlightGear's configure.ac read as below
dnl check for glut location
AC_CHECK_HEADER(GL/glut.h)
if test "x$ac_cv_header_GL_glut_h" = "xyes"; then
AC_DEFINE([GLUT_H], <GL/glut.h>, [Define as glut.h include location])
else
AC_CHECK_HEADER(GLUT/glut.h)
if test "x$ac_cv_header_GLUT_glut_h" = "xyes"; then
AC_DEFINE([GLUT_H], <GLUT/glut.h>, [Define as glut.h include location])
else
echo "Neither GL/glut.h nor GLUT/glut.h found. Cannot continue"
exit
fi
fi
NOTE the use of <> and not "" surrounding GL/glut.h
I think that this is an appropriate fix for all systems but .... YMMV
Norman
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