From: fano AT norcov DOT com (Dr. Norman Fahrer)
Date: Mon, 30 May 1994 18:13:02 -0700
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: djgpp & vogl


Hi !

I installed djgpp on my PC 486 and it works very good ! All the
important things I wanted it to do went without any problem ! 
Then I installed the additional contribution : the grx-library (libgrx)
and found that all test programs work without any problem too. Very
positive. 

Then I found the graphics package : VOGL  which I know because I
installed it on a RS6000 years ago ( This IBM-machine wasn't easy to
handle at that time....). NOW : the djgpp-gcc compiled everyting without
any problems,... not a single warning etc. All libraries were created and
I set the environment variables : HFONTLIB und VDECIVE.
With VDEVICE=grx the sample programs do not work at all. The sreen
gets first cleared and then things like this appear on the screen :

eax=0000004c ebx=7fffe757 ...(2 lines of this stuff)
call frame traceback EIPS:
0x00013140
......
.....(more of these cryptic stuff)

Then I am back at the cursor. Hmm. I don't know what to do next.
The relevant part of my environment setting in the autoexec.bat 
looks like this :

 
Relevant part of my Environment setting in autoexec.bat
--------------------------------------------------------
COMPILER_PATH=d:/djgpp/bin
C_INCLUDE_PATH=d:/djgpp/include
CPLUS_INCLUDE_PATH=d:/djgpp/cplusinc;d:/djgpp/include
OBJC_INCLUDE_PATH=d:/djgpp/include;d:/djgpp/include/objc
OBJCPLUS_INCLUDE_PATH=d:/djgpp/include;d:/djgpp/include/objc
LIBRARY_PATH=d:/djgpp/lib
INFOPATH=d:/djgpp/docs;d:/djgpp/docs/djgpp
TMPDIR=c:/tmp
GO32TMP=c:/tmp
GO32=ansi driver d:/djgpp/drivers/vga.grd gw 1024 gh 768
GRXFONT=d:\djgpp\contrib\libgrx\fonts
MANPATH=c:\usr
VDEVICE=grx
HFONTLIB=d:\gnuish\vogl\hershey\src\lib\hershey
-----------------------------------------------------

There is one more curious thing about this : 
When I run the testprogram  tmesh and answer the 3 questions

(Backfacing ON Y/N)
(Fill polygons Y/N)
(double buffering Y/N)

all with Yes, then this testprogram works. Do I answer with No,
then it behaves like all the others with the frustrating response
described above. 

       Any help is appreciated ! Thanks in advance for replies.


Norman





-- 
Dr. Norman Fahrer