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From: antilld@vfb23.mds.lmco.com (Dan Antill)
Subject: Help creating Ada obj file for use in C
Date: 1997/06/20
Message-ID: <5oe7ma$9hr@morgan.vf.lmco.com>#1/1
X-Deja-AN: 251360201
Organization: Lockheed Martin
Newsgroups: comp.lang.ada
Date: 1997-06-20T00:00:00+00:00
List-Id: <comp.lang.ada>


Hi.

I am having a lot of trouble linking my ada object file with C.
(C will be the main program)   I am using SunAda3.0 on SunOs5.4

I make my ada normal ada library, and used a.ar -f to create the archive
library. 

Then, I have my C object file and say "ld c_obj.o ada_obj.o -o exec_file"

This causes SLEWS of Undefined Symbol errors such as:
"_A_time_error.EXCEPTION.calender"  and "_A_create.19S12.text_io"

I don't understand what these symbols are, and how I can tell the linker
or compiler to include them when I make the object file.

I have an ADA routine that I have to call externally (really, from Oracle
Forms (which gave me trouble)) so I am trying to see if I can call it from
C instead. I figure that if I can do that, then I can also get Oracle, too.

I also have already tried these directives 

IMPLICIT_ELABORATE_PRAGMA:INFO:TRUE:
IMPORT_INSTANTIATIONS:INFO:TRUE:
LIBRARY:LINK:library_file:
STATIC_LIBRARY:INFO:static_library:
STATIC_LINKING:INFO:TRUE:

to no apparent avail.
I have also included the new "static_library" in my ld command, which
has the same reaction as my a.ar archive. 

I am hoping that some ADA expert out there can point me in the right 
direction!!!

Thanks very much in advance!!!

Dan