ecpg and include files

Hi !

After I posted my problem to the novice list, I have found some problem
descriptions in this general list,
which are quite similar to my problem with the ecpg.
Unfortunately I did not found any corresponding answer, can anybody give me a
hint ?

I installed PostgreSQL 6.5.3 on i686-pc-linux-gnu, compiled by gcc egcs-2.91.66
(Linux Suse 6.3, Kernel 2.2.13),
succeeded in running the postmaster, creating a database and doing SQL with
psql.

Then I let run the ecpg on a C program, which uses embedded SQL and is in the
style of
applications I have written for Oracle databases, but the ecpg causes the
following error message:

in line 19ot open include file sqlca. ( I think "in line 19: could not
open include file sqlca." was intended)

for the statement at line 19:
EXEC SQL INCLUDE sqlca;

What can I do to solve this problem ? According to the documentation the
statement above should work.

Path information and so on seem to be OK, moreover the ecpg used with option
--v shows:
ecpg - the postgresql preprocessor, version: 2.6.0
exec sql include ... search starts here:
.
/usr/local/include
/usr/local/pgsql/include
/usr/include
End of search list.

( with sqlca.h at the right place:
ls -l /usr/local/pgsql/include/sqlca.h
leads to:
-r--r--r-- 1 postgres daemon 957 Jun 28 16:08
/usr/local/pgsql/include/sqlca.h
)

The error message turns up even when I use ecpg -I/usr/loca/pgsql/include

Thanks in advance,
Jochen Weyermanns