[Texmacs-dev] Re: TeXmacs 1.0-1 -ffloat-store [Q]

[Joris van der Hoeven]

> On Mon, Jul 22, 2002 at 04:55:09PM +0200, Joris van der Hoeven wrote:
> > 
> > OK, so it may be worth experimenting a bit with
> > 
> >     src/Basic/System/fast_alloc.gen.cc
> 
> done that, and it turns out to be a compiler issue.. not sure
> where the bug is but switching from 
> 
>    ##OPTFLAGS="-O3 -fexpensive-optimizations -fno-exceptions -fno-rtti 
> -fno-implicit-templates -m68020-60 "
>    OPTFLAGS="-O2 -fno-exceptions -fno-rtti -fno-implicit-templates -m68020-60 
> "
> 
> cures the problem - the compiler was actually quite stable so far.
> Apparently no special flags are needed for m68k.

Thanks for this great news. So I assume that it is OK that I should
use the following entry in configure.in (version 1.0.0.10):

  *m68k*)
    AC_MSG_RESULT(final setup for a Motorola 68xxx host)
    CONFIG_OS="M68K"
    CONFIG_OS_SUFFIX="m68k"
    CONFIG_CX="$X_CFLAGS"
    CONFIG_CXXFLAGS="-m68020-60"
    CONFIX_CXXOPTIMIZE="-O2 -ffloat-store"
    CONFIG_LFLAGS=""
    CONFIG_LSTATIC="-static"
    CONFIG_LSHARED="-shared"
    CONFIG_LPATH="-Wl,-rpath,"
    CONFIG_LX="$X_LIBS -lXext -lX11"
    CONFIG_BFLAGS=""
    CONFIG_BSTATIC="-Wl,-Bstatic"
    CONFIG_BSHARED="-Wl,-Bdynamic"
    CONFIG_BPATH="-Wl,-rpath,"
    CONFIG_BX="$X_LIBS -lXext -lX11"
    CONFIG_WORD_LENGTH="4"
    CONFIG_WORD_LENGTH_INC="3"
    CONFIG_WORD_MASK="0xfffffffc"
    CONFIG_MAX_FAST="260 // WORD_LENGTH more than power of 2"

Please tell me whether

  * I should indeed test on *m86k*

  * The flag -m68020-60 should go to CONFIG_CXXFLAGS
    rather than CONFIX_CXXOPTIMIZE

  * Is this flag OK for all 68xxx processors,
    or just for yours?

  * The flag -ffloat-store should also be used
    (I found this in the old TeXmacs.spec)

  * All other fields have been copied from the "unknown" architecture.

Is the running speed OK for not too large files?
Thanks a lot again for your valuable contribution;
I will include the right support for *m68k* in TeXmacs-1.0.0.11.

Best wishes, Joris