I am getting problem with .FC files in Ingres environment.

Currently I am working on an existing project which was developed in
Ingres 2.6 on Linux O/S. The project involves some enhancements in the modules.

As I am new to Ingres, while compiling the modules using makefiles i am facing numerous problems with .FC files.

I want to know for what purpose these .FC files are used?
Please anybody help me in this regard.

Srinivas K

I've not come across fc files. I don't think they're an ingres thing. What do they contain?

The contents of .FC file is something like:
---------------------------------------------------------
# include "/ingres/ingresdev/ingres/files/frame61.h"
static TRIM _t00 = {
0,
0,
0,
0,
0,
0,
"Choose A Transfer Req Type"
};
static FRAME _form0 = {
"",
9,
"trans_lkup",
_af00,
1,
_an00,
0,
_at00,
1, 0, 0, 0, 0, 0, 0,
27,
10, 0, 0, 0, 1, 0, 0,
0, 129, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0
};
FRAME * trans_lkup = {
&_form0

};
-----------------------------------

Ah OK - that's a 'compiled' form file. It's called compiled but it's actually translated into a C file that you can compile and link with an ESQLC program that wants to use the form. You'd create the file with vifred then 'compile' it with compform e.g.

compform database formname filename.c

This will create a file filename.c which contains the code for the form itself.

It looks like someone at your site choose the extension .fc for forms c files to distinguish them from other c files.

HTH

Thank you Mr.PaulMason


I've few more doubts.
In makefiles, I found something like:
-------------------------------------
.fc.o :
ing_include < $*.fc > $*.c
$(CC) -c $*.c
-------------------------------------
But while executing it, O/s is reporting that "ing_include" is unknown command. What might be this command? Does it belong to older versions of Ingres?

I also suspect that ing_include may be a script. Though I do not find any such file on my system in the application.

Do we need to compile these .FC files along with the application files (i.e. .SC & .OSQ)?

Please explain the above.

Thanks once again.
Srinivas K

If your application uses those forms then you need to compile them.

I agree that ing_include looks like a script - it's not a standard Ingres tool. If you look at how it's used it transforms the *.fc files into *.c files and then compiles them.

My guess - and it is just a guess - is that it translates the #include line of the files. Perhaps these forms were originally created and stored on another machine or in a different ingres installation than the one where they are compiled?

Check that the path in the #include line matches $II_SYSTEM/ingres/files/frame61.h for whatever II_SYSTEM is set in the installation you're compiling in. If not then you'll need to change it. But you'll also need to change the makefile to miss out the step with ing_include.

For simplicity it might to easier to write a script call ing_include which replaces the #include line with the correct one.

That's all assuming that my guess is correct which it may not be.

Thank you once again Mr. PaulMason

Your guess is correct! I found a script (seems like a lex program) in a different location and is changing #include lines.

Anyhow I have solved the problem with your timely help

Thank you once again
Srinivas K