Hello;
I just downloaded cygwin, installed PLIB 1.6.0, got the Simgear-0.3 CVS,
installed Metakit, and proceeded to make Simgear. However, I get the
following problem:
====================================================================
make[3]: Entering directory `/usr/local/src/SimGear/simgear/screen'
if g++ -DHAVE_CONFIG_H -I. -I. -I../../simgear -I../.. -g -O2
-D_REENTRANT -M
T extensions.o -MD -MP -MF ".deps/extensions.Tpo" \
-c -o extensions.o `test -f 'extensions.cxx' || echo './'`extensions.cxx; \
then mv -f ".deps/extensions.Tpo" ".deps/extensions.Po"; \
else rm -f ".deps/extensions.Tpo"; exit 1; \
fi
In file included from extensions.cxx:35:
extensions.hxx: In function `void (* SGLookupFunction(const char*))()':
extensions.hxx:65: `glXGetProcAddressARB' undeclared (first use this
function)
extensions.hxx:65: (Each undeclared identifier is reported only once for each
function it appears in.)
make[3]: *** [extensions.o] Error 1
make[3]: Leaving directory `/usr/local/src/SimGear/simgear/screen'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/usr/local/src/SimGear/simgear'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/local/src/SimGear/simgear'
make: *** [all-recursive] Error 1
===================================================
I looked into extensions.hxx and hacked it as follows to get everything to
compile:
===================================================
#if defined( WIN32 )
return (void (*)()) wglGetProcAddress(func);
#elif defined( __APPLE__ )
return (void (*)()) macosxGetGLProcAddress(func);
#else
// If the target system s UNIX and the ARB_get_proc_address
// GLX extension is *not* guaranteed to be supported. An alternative
// dlsym-based approach will be used instead.
//#if defined( linux ) || defined ( sgi ) //comment out to get to
compile under cygwin
void *libHandle;
void (*fptr)();
libHandle = dlopen("libGL.so", RTLD_LAZY);
fptr = (void (*)()) dlsym(libHandle, func);
dlclose(libHandle);
return fptr;
//#else //comment out to get to compile under cygwin
// return glXGetProcAddressARB(func); //comment out to get to
compile under cygwin
//#endif //comment out to get to compile under cygwin
#endif
===================================================
After this change Simgear compiles, the FlightGear-0.9 CVS compiles,
however, upon starting FlightGear everything goes well, but when the
splash screen is shown and the beeping sound is heard, things lock and I
get a message in the console as follows:
=================================
WARNING: SlDSP: Cannot perform this operation while media data is still
playing.
Reset the device, or wait until the data is finished playing. (33)
=================================
Could this problem be due to my hack? Could anyone confirm the compile
problem at least, and suggest another fix?
Thanks,
-Mike
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