bryan@kewill.UUCP (Bryan Boreham) (08/29/89)
This is a summary of the situation regarding ET++ and G++. People still write to me with questions which indicate that they missed hearing this last time, so here it is again. I ported ET++ to compile with g++ 1.35 in June, with a great deal of difficulty. When the system almost worked, I mailed out a set of diffs from the original source, to enable other people to try to build ET++ with g++. This had a mixed amount of success, as the port was not finished, it did not work with the 1.35 release of libg++, and it did not compile under SunOS 4.0. Since then, I've continued work on ET++, and we now have a usable system. I had a lot of help from people on the net, who I should like to thank. When g++ 1.36 stabilises, and when I have time, I will send out a new set of patches which should build ET++ with a single "make". I hope. If you wrote to me about ET++ and I didn't reply, it probably wasn't intentional. Write again, and I'll see if I can help. What is ET++? It's a truly amazing class library for building Mac-like programs on Suns. It implements much of the usual Smalltalk classes such as ordered collections, as well as an application program framework based on MacApp. It was written at the University of Zurich, and runs under SunWindows, X and NeWS. Or you could go with Michael Tiemann's description: "Wow!" Bryan Boreham bryan@kewill.uucp Software Engineer || bryan%kewill@uunet.uu.net Kewill Systems PLC || ... uunet!mcvax!ukc!root44!kewill!bryan Walton-On-Thames Surrey, England Telephone: (+44) 932 248 328
elev26@castle.ed.ac.uk (Gerard A. Allan) (11/26/90)
I have compiled et++2.0 on a sun3 4.0 using g++1.37.1 after a little effort.
There are still a number of problems. I had to solve the following
problems to get Et++ up and running applications. They maybe of interest
to anyone else attempting a port to g++.
Applyed the patches posted by Ron Guilmette (comp.lang.c++)
used makefile from tom@tnosoes.izf.tno.nl (Tom Vijlbrief) (comp.lang.c++)
compiled without POSTSCRIPT PIC PICT XSERVER NEWS SERVER
I applied the following script to all *.C files. A few #pragma vtables
where errors but these were easily spotted by compiler.
*******************************
for i do
sed -e "s/\\$/\$,/g" < $i | awk -F, 'BEGIN{print "#ifdef __GNUG__ "}
{if ($1 == "//$") {
for(f=2;f<=NF-1;f++){
printf("#pragma vtable \"%s\"\n",$f)
}
}
}END{print "#endif"}'|sed -e "s/\\$//g" > addfile
cat addfile $i > newfile
mv newfile $i
done
***********************
Compile with the +e2 option. This is supposed to reduce the
resultant code size. (does it ? and does it introduce any problems ?).
1) with -g -fminimal-debug the gcc-ld++ crashed.
I had to compile without debugging info then recompile files of interest
with -g -fminimal-debug to get some debugging.
2) I had problems with the system valloc (seg in pw_open). I replaced the
memory allocation routines with those in malloc.c from the g++ src
directory. This solved the problem.
this new malloc aborted in new char[1] of ostream::ostream I fixed this
by adding in char *malloc(int n)
if (n<=8) n=32; (YUK!!!!).
obviously something is going on that needs properly sorted.
3) got seg violations in Object::ClassName. The problem here seemed to
be that IsA returns 0 from Root::IsA.
reconfigured without PROGENV removed this problem. (has anyone seem
and/or solved this problem).
4) problem with StaticTextView::Fit called Difference (Rectangle.C)
3rd arg got trashed to 0x0 (maybe a compiler bug ????)
int n= Difference(r,contentRect.Expand(Point(4,0)),
Rectangle(newOrigin,newExtent));
replaced with
Rectangle temp1= Rectangle(newOrigin,newExtent);
// expanded by 4,0 to remove the caret too
Rectangle temp2= contentRect.Expand(Point(4,0));
int n= Difference(r,temp2,temp1);
solved problem.
5) seg violation in ClipBoard::~ClipBoard
this was due to SafeDelete (Types.h) when defined as if(p) { delete p ; p=0}
problem solved.
-----
As a result I can now run a number of applications: hello twoview micky
etc. I would like to get the PROGENV working. Has anyone had any
success with this and how did you do it.
Gerard A. Allan | Post: EMF
elev26@castle.ed.ac.uk | Kings Buildings
JANET:elev26@uk.ac.ed.castle | University of Edinburgh
Internet:elev26%castle.ed.ac.uk@cunyvm.cuny.edu | Edinburgh
EARN/BITNET:elev26%castle.ed.ac.uk@UKACRL | Scotland
UUCP:elev26%castle.ed.ac.uk@ukc.uucp | EH9 3JL