Also on -funit-at-a-time...

[David Daney]

Rob Landley wrote:
> To get the most out of recent gcc's, it's best to compile more than one c file 
> at a time:
> 
> http://gccsdk.riscos.info/mail-archive/gcc/2004/2797.html
> 
> More or less having gcc create the .a files straight from the .c files in one 
> gulp.  I've done this and even with gcc 3.3 it produces smaller resulting 
> binaries.

If there are any unused functions or data, you can win by using 
-ffunction-sections -fdata-sections -Wl,--gc-sections as well.  This 
allows the linker to eliminate any unreferenced code or data.  However 
you need very recent binutils to make it work.

David Daney.