Upon compiling the freepascal compiler from cvs, I noticed a lot of .o and .ppu files generated in addition to the final executable. What is the difference between .o and .ppu files and can I delete them both to eliminate the clutter?

Upon compiling the freepascal compiler from cvs, I noticed a lot of .o and .ppu files generated in addition to the final executable. What is the difference between .o and .ppu files and can I delete them both to eliminate the clutter?

.ppu contains information for the compiler
.o contains object code used by the linker

See the programmers manual for more information

The .ppu are compiled units. You probably want to keep them hanging around, but it's not neccessary. If you delete them, the compiler simply needs to re-compile all the units each time you compile. If you leave them, I think it will only compile the changed units and the main program.

I think the .o files can be deleted.

-Alan

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the .ppu/ppw files are the interface parts of the unit in a compiled form, while the .o/ow files are the implementation part of an unit or a program in it's compiled form. Those files (.o/.ow) are needed to perform the linking of the app.

Once you've compiled the compiler you don't need them. However you'll need the ones generated when compiling the RTL.

ciao, Ivan