Danny,

thank you for your answer!! =)

Roger.


----- Original Message ----- 
From: "Danny Reinhold" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, December 30, 2003 1:15 PM
Subject: Re: [sqlite] Compiling a shared library (.so) WITH threadsafe
option enabled


> Hi!
>
> > I added these things myself to the Makefile...
> >
> >     TCC = gcc -g -O2 -DTHREADSAFE=1 -DNDEBUG=1 ........
> >     LIBREADLINE = ....... -lpthread
> >
> > Then:
> >
> >     $ make
> >     $ cd .libs
> >     $ strip libsqlite.so.0.8.6
> >
> > That's all. Now the libsqlite.so file is only 260K (less than half the
> last
> > size)...
> >
> > May I ask??
> >
> >     - Is the threadsafe really enabled by changing only those two lines
in
> > the Makefile?
> Yes, -DTHREADSAFE=1 enables thread safety
>
> >     - Isn't the libsqlite.so too small?  Haven't I stripped too much
from
> > it??
> Probably you compiled with debug enabled the first time. So the compiler
> put a lot of debugging symbols into the output files.
> With -DNDEBUG=1 you disabled the debugging mode - now the compiler
> doesn't generate the debugging symbols. Thus the resulting files are much
> smaller.
>
> You can verify this:
> - Compile without -DNDEBUG=1. The resulting library should have the
>   old length
> - Now remove the debugging symbols by using the strip command
>   (strip libsqlite.so)
> - Now the library should have about 260K again...
>
> The strip command removes debugging symbols from object files,
> executables and libraries while -DNDEBUG=1 causes the compiler
> to not generate them (and so it's useless to strip the library after
> creation)...
>
>   - Danny
>
> --
> Danny Reinhold
> Reinhold Software & Services
> http://www.rsas.de
>
>
>
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