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[PsychoChris]

Hi there,

first of all i have to say that RC4 is a wonderful piece of work! Many (even much more than only many...) bugs were killed and it makes a quite goot impression.
But... (you knew that this 'but' would come...) ... when i try to compile it with enabled optimisation it never finishes. I hear my computer working and working, but nothing seems to happen at this point:

if g++ -DHAVE_CONFIG_H -I. -I. -I..     -I/usr/lib/wx/include/gtk-2.4 -DGTK_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -I/opt/gnome/include -I/opt/gnome/include/gtk-1.2 -I/opt/gnome/include/glib-1.2 -I/opt/gnome/lib/glib/include -I/usr/X11R6/include    -I/usr/include/ -D__CRYPTO_MDK_SUSE_FC__  -O2  -MT amule-PrefsUnifiedDlg.o -MD -MP -MF ".deps/amule-PrefsUnifiedDlg.Tpo" \
  -c -o amule-PrefsUnifiedDlg.o `test -f 'PrefsUnifiedDlg.cpp' || echo './'`PrefsUnifiedDlg.cpp; \
then mv -f ".deps/amule-PrefsUnifiedDlg.Tpo" ".deps/amule-PrefsUnifiedDlg.Po"; \
else rm -f ".deps/amule-PrefsUnifiedDlg.Tpo"; exit 1; \
fi

That's what i see on the screen and what never seems to finish even after hours. Canceling with [CTRC+C] gives the following output:

make[4]: *** [amule-PrefsUnifiedDlg.o] Interrupt
make[3]: *** [all-recursive] Interrupt
make[2]: *** [all] Interrupt
make[1]: *** [all-recursive] Interrupt
make: *** [all] Interrupt

I rebootet, typed 'make clean' an tried it again, but nothing changed. I called configure with following arguments:

./configure --enable-webserver --disable-debug --enable-optimize --enable-amulecmd

If i remove '--enable-optimize' compiling finishes after 10 minutes. Any ideas what the problem could be? And what exactly does --enable-optimize?

Greetings,
PsychoChris

[Xaignar]

This is a problem with gcc-3.3.1, so I'm afraid that you'll have to update to a never version of gcc if you wish to compile with optimisations enabled. =/

[PsychoChris]

Well, that Info helped. Thanks!

But is it worth compiling with --enable-optimize? What exactly will be optimized?

Greetings,
Chris

[Xaignar]

I'm not entirely sure, but from what I can see from a quick look in configure.in, all you get is the CXXFLAG -O2.

[PsychoChris]

Sorry for my lack of knowledge, but what effect does that Flag have?

Greetings,
PsychoChris

[Supersnail]

From http://freshmeat.net/articles/view/730/

The -O2 flag turns on the following flags:

    * -O1, which turns on:
          o defer pop (see -fno-defer-pop)
          o -fthread-jumps
          o -fdelayed-branch (on, but specific machines may handle it differently)
          o -fomit-frame-pointer (only on if the machine can debug without a frame pointer; otherwise, you need to specify)
          o guess-branch-prob (see -fno-guess-branch-prob)
          o cprop-registers (see -fno-cprop-registers)
    * -foptimize-sibling-calls
    * -fcse-follow-jumps
    * -fcse-skip-blocks
    * -fgcse
    * -fexpensive-optimizations
    * -fstrength-reduce
    * -frerun-cse-after-loop
    * -frerun-loop-opt
    * -fcaller-saves
    * -flag_force_mem
    * peephole2 (a machine-dependent option; see -fno-peephole2)
    * -fschedule-insns (if supported by the target machine)
    * -fregmove
    * -fstrict-aliasing
    * -fdelete-null-pointer-checks
    * reorder blocks

There's no point in using -O2 -fstrength-reduce, etc., since O2 implies all this.

In the names of the optimizations you might see what it does.

[thepolish]

Hi,

Not a problem with aMule, just with your compiler: Here compile fine with "-O2 -march=i586 -mcpu=pentiumpro -fomit-frame-pointer" (Mandrake default) with gcc 3.2.2

update it

the Polish