Mix different C source files into a single one

horacioemilio · 12-29-2007, 12:01 PM

Hi,

I have a C program split into different source files. I am trying a new compiler and for some reason it only accepts a single source file. So I need to "mix" all my different C source files into a single one.

Do you know about some program able to do this kind of task ?

Thanks

jtshaw · 12-29-2007, 12:06 PM

No..

What compiler are you using? I've never heard of a compiler that can't handle multiple sources files....

horacioemilio · 12-29-2007, 12:09 PM

it is some kind of a special compiler developed by some company for some specific architecture (kind of arm)

the thing is that I can not avoid this !

Quote:

Originally Posted by jtshaw

No..

What compiler are you using? I've never heard of a compiler that can't handle multiple sources files....

paulsm4 · 12-29-2007, 01:02 PM

Hi -

How about this:

Code:

cat *.h *.c >> bigfile.c

You know that if this C compiler is so idiosyncratic that it doesn't even support multiple source files, you're going to have your work cut out trying to port code to it. Merging source is probably going to be the least of your problems.

Good luck .. PSM

PS:
If the original source doesn't already do it, you'll need to do two extra things manually:

Quote:

a) Put "guards" around each include file:

Code:

#ifndef _MY_INCLUDE_H
#define _MY_INCLUDE_H
  ... the rest of the header ...
#endif

b) Create prototypes for each function (before the function is first used!)
<= This lets you use any function in any order: you don't have to worry about "duplicate definitions"

ta0kira · 12-30-2007, 12:54 AM

Depending on the code complexity you may not be able to just do a cat operation. The headers need to be added in the order declarations are used. For example, if header X.h requires type struct zzz in header Y.h then you'll need to place the Y.h code before X.h. Assuming the compiler can handle includes, though, you could just cat the sources into a single file and leave the headers alone.
ta0kira

tuxdev · 12-30-2007, 12:16 PM

If the compiler does support #include, then you can create an "everything.c" that includes all of the other .c files (it's fairly easy to generate it with the various build tools). If it doesn't support #include (that would be insane), then you can get GCC to expand all of that with -E.

ta0kira · 01-08-2008, 10:24 AM

Depending on how the sources were written, you also might need to watch out for duplicate static symbols in the sources. That's really the only problem I see with consolidating source files.
ta0kira