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[Help-smalltalk] Embeding GST in an application

From: David Forster
Subject: [Help-smalltalk] Embeding GST in an application
Date: Mon, 8 Oct 2001 04:41:26 -0600
User-agent: Mutt/1.3.22i

I've been fooling around with GST a bit and have been trying to get it
to work from an application (that is, initializing the VM from my own C
application (instead of having `gst' dlopen() a module).  The info
manual says this is OK, but I've been running into a few problems:

- First, libgst.a isn't installed.  The replaces (not
  augments as maybe was expected?) install-libLTLIBRARIES so that the
  optimize rule is run.  Perhaps it would be better to have a
  --enable-debug switch for configure?  I assume most people want the
  optimized build anyways, it's actually slowing people down building
  both as is.

- Is there a particular reason why there is no  Is it to
  save build time as before?

- One must install callin.h in order to access stringToOOP(), etc. w/o
  a VMProxy struct.  The include for gst.h has to be removed to get it
  to work outside the tree...

- The VM is flaky for some reason when run like this.  For example,
  with just a plain vanilla main() (just like main.c in gst),
  executing '3 printNl!' causes the following:

  st> 3 printNl!  

  Execution begins...
  stdin:1: Segmentation violation
  [] in TextCollector>>#showCr:
  Segmentation fault

I've tried both optimized and `normal' builds of libgst.a. My main()
looks just like GST's...

I'd like (if possible) to link libgst.a instead of .so modules since
GDB strongly dislikes dlopen() and .so's on some platforms (BSD).  GDB
is even a little flaky on GNU platforms in this area...Being able to
do static builds might make things easier.

Is there any support for fixing this?  Or was disabling libgst.a

I'm trying this all on Debian GNU/Linux (testing) w/ Linux 2.4.10,
GLibc 2.2.4, and GCC 2.95.4.  This is with GST 1.95.4.

David Forster

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