Arm Development Studio forum Precompiled Header

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Precompiled Header

Note: This was originally posted on 8th June 2010 at http://forums.arm.com

Problem:
I've been trying to utilize precompiled header option, but with no luck. Even after installing patch 771 for RVCT 4.0.

Here what I'm trying to do.
Assume I have 3 source files and 1 header:

0. /myproject/inc/aaa.h
-----------------------------------
// a bunch of definitions

1. /myproject/src/AAA.c (created this file to include only the header file and compiled with --create_pch=AAA.pch)
------------------------------
#include "aaa.h" // this is a very large file
//eof

2. /myproject/src/File1.c (compiled with --use_pch=AAA.pch)
---------------------------------
#include "aaa.h"

// some codes

3. /myproject/differentsrc/File2.c (compiled with --use_pch==AAA.pch)
---------------------------------
#include "aaa.h"

// some codes

So the problem:
File1.c is using AAA.pch and compiled in a snap without any problem.

But File2.c can't use AAA.pch and does a regular compile (long compile). It gives warning:
"no source": Warning: #629-D: the command line options do not match those used when precompiled header file "AAA.pch" was created

Questions:
- Is this a limitation for the precompiled header option? Files must be in the same directory.
- Are there any other options on how to solve this?

Thank you,
-a