[lionscribe]

If you have been reading the forums lately, you will see that there is a demand for adding preprocesser defines in the JDE, so that the same file can be used in multiple OS versions.
RIM added defines in the 4.7 JDE, and in reality it was there earlier, but the problem is that the defines are in the JDP file, so you cannot use the same JDP file for the seperarte compiles. The best would be if the compiler would add its own define, as is in most other compilers.
Well, I have figured out a way to do this and I am hereby posting my solution.

I have created a replacement rapc.exe file, which calls the original rapc.exe file, with the added defines. The defines are defined in a seperate text file, within each compilers folder.
The following are the instructions:
In each 'bin' folder in the Blackberry JDE compiler, do the following;
1. Rename the file "rapc.exe" to "rapc_original.exe". Do not delete it or rename it differently, as it is used internally!
2. Copy the included "rapc.exe" & "rapc_defines.ini" files to the folder.
3. Edit the "rapc_defines.ini" to reflect the current version.

Well that's it.

Now to use the preprocessor, just add the line
//#preprocess
as the first line in any file you want to preprocess.
Then any line which is compile dependant use the following synthax:
//#ifdef OS_COMPILE_ATLEAST_4_20
obj = new Class4.2 type
//#else
obj = new Class4.0 type
//#endif

I have included the source code (c++), and I hope you will improve on it.

I hope I have been clear, and I am waiting for your comments,
Lionscribe

[lionscribe]

I am happy to hear form those who found my utility useful.
I have now decided to update/change this fix.
Last version, was written in C++, and updated the rapc.exe file.
The problem was, that it worked when you compiled using the IDE, as it called rapc.exe, but if you compiled using ANT, it wouldn't work, as bb-ant-tools calls rapc.jar directly without calling rapc.exe.
Therefore I have rewritten the utility in Java, and now it updates rapc.jar
The instructions are the same, just instead of renaming rapc.exe to rapc_original.exe, you now rename rapc.jar to rapc_original.jar. Then you copy the included rapc.jar to the bin folder.
If you have already installed the previous version, then you should undo the changes to rapc.exe, by deleteing rapc.exe, and renaming rapc_original.exe to rapc.exe.
The rapc_defines.ini file remains the same. See the instructions in the previous post.

[Dougsg38p]

Just a dumb question, but what was wrong with the RAPC preprocessor in the first place?

[lionscribe]

Wirelessly posted

We ARE using rapc preprocessor. We are just adding the ability that every version of the compiler should add some defines that identify the compiler version.
That way, the same code can be used in multiple versions, by using some if...else... preprocessor directives. I believe I explained it better in the first post.
Lionscribe

[aluo]

This utility is freaking great! Thanks a lot for posting this, it's helped us out a lot.

I was just wondering if there is any way possible to get Eclipse to recognize this as well? I'm currently using the JDE for 4.1 and the Eclipse plug-in for 4.7 and wanted to be able to switch between the 2 environments. (I'd like to stay away from the 4.7 JDE if at all possible).