> *IDE version:* Lazarus 0.9.18 (fresh installation)
> *OS:* Windows XP and Linux(Mandriva 2006) - same
> problem.
>
> *Problem description:* While Lazarus tries to compile something, it
> starts to search for several files - PPUs, Libraries, source files,
> etc.But IMHO, it searches things in a wrong (not optimal) way. And as a
> result it spends more then 99% of compilation time in this searching
> process.
>
> Here is the example:
>
> "/(SYSTEM) Loading unit SYSTEM
> Unitsearch: System.ppu
> ...
> Unitsearch: System.pp
> Searching file System.pp... not found
> ...
> Unitsearch: System.pas
> Searching file System.pas... not found
> ...
> Unitsearch: System.ppu
> Searching file System.ppu... not found
> ...
> ...
> Unitsearch: C:\lazarus\fpc\2.0.4\units\i386-win32\rtl\System.ppu
> Searching file C:\lazarus\fpc\2.0.4\units\i386-win32\rtl\System.ppu...
> found/"
>
> SYSTEM.PPU is a basic unit. But Lazarus first tries to find file
> "System.pp" in the project root directory! And it takes Lazarus 23
> attempts (!!!) ONLY to find System.ppu. More over, every time I will
> build the same project - Lazarus will spend 23 attempts to find
> System.ppu.
>
> First of all I think, it should be a list of system modules(libraries)
> to find them every time in the same place. If this is a compiler issue -
> we should put system units search path at the top of unit search list.
> Next, I think it is a good idea to store some search results in project
> file (like "Project.lpi") to speedup the compilation process. I mean
> that all *.PPU/*.PAS/*.PP/*.A etc files that are parts of a project
> should be stored in "Project.lpi" with full path. So compiler will try
> to search them ONLY when they will be not found with this stored paths.
This is searching is in the compiler and it is there by design and will
not be changed. It allows you to override units in your local tree. Also
note that for the compiler there is no difference if a unit is part of the
RTL of LCL or your own project.
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