Re: gnat3.07 on AIX4.1.4: link problems

[Ken Thomas <kst@ecs.soton.ac.uk>]

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Meskovic Zlatko wrote:
> 
> Hi all,
> 
> I have a little problem with linking ada on my PowerPC.
> 
It is good news that tasking is working on this version as I am
developing code for the parallel IBM SP2. One aspect of this is an Ada95
binding to MPI in which alternative startup code (crt0.o) is used.
After some experimentation the attached makefile was produced.
The "trick" is to use the option -nostartfiles as a parameter to
gnatlink. The MPI-Ada code is called from an enclosing C program.

Hope this helps.

Ken


-- 
Dr K.S. Thomas
Department of Electronics and Computer Science
University of Southampton
Highfield
Southampton SO17 1BJ
United Kingdom

Telephone : (+44) 01703 593029
Fax :       (+44) 01703 593903

email: kst@ecs.soton.ac.uk

[-- Attachment #2: Makefile --]
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MPI_LINK  = -nostartfiles -L/usr/lpp/ppe.poe/lib -L/usr/lpp/ppe.poe/lib/ip -lmpi -lvtd -lppe -lc
GNAT = -L/home/kst/SP2/GNAT.3.05/lib/gcc-lib/rs6000-ibm-aix3.2/2.7.2 -lgnat

EXTRA_LINK = /usr/lpp/ppe.poe/lib/crt0.o

wrapper1.o:	wrapper1.c
	mpcc -c -I/usr/lpp/ppe.poe/include wrapper1.c

wrapper.o:	wrapper.c
	gcc -c -I/usr/lpp/ppe.poe/include wrapper.c

test1.ali:	test1.adb
	gnatmake -c test1

test1:	wrapper1.o test1.ali
	gnatbind -n test1.ali
	gnatlink $(MPI_LINK) $(EXTRA_LINK) test1.ali wrapper1.o
	rm test1.ali
	

test2.ali:	test2.adb
	gnatmake -c test2

test2:	wrapper.o test2.ali
	gnatbind -n test2.ali
	gnatlink $(MPI_LINK)  $(EXTRA_LINK) test2.ali  wrapper.o
	rm test2.ali 

one.o:	one.c
	gcc -c -I/usr/lpp/ppe.poe/include one.c

one:	one.o
	gcc -o one $(MPI_LINK) $(EXTRA_LINK) one.o