[Vm-dev] Cannot compile Cog: GCC 4.7

[Eliot Miranda]

Hi Tim,

    how about adding that advice to build.linux32x86/HowToBuild?

On Sat, Apr 11, 2015 at 6:35 AM, gettimothy <gettimothy at zoho.com> wrote:

>
> Hi Tobias
>
> The Cog/build.linux32x86/[lang].[vm].[memory manager]/build[.*]/mvm file
> is a good starting point.
>
>
> If you get the time, and after you get a 'build' build done, could you
> please attempt a build.assert build?
> There is (probably) a bug with GCC > 3.xyz where the function attribute
> __attribute__((regparm(n))) is not implemented.
>
> I am running GCC 4.8.2 and if you get the same problem, then it is good
> news.
>
> thx
>
> tty.
>
>
> btw, on 64 bit slackware, my base mvm file looks like this:
>
>
>  bash-4.2$ cat usr/src/smalltalk/mvm
> #!/bin/bash
> # VM with VM profiler and threaded heartbeat
> INSTALLDIR=coglinuxht
> # Some gcc versions create a broken VM using -O2
> case `gcc -v 2>&1 | grep version | sed 's/gcc version *//'` in
> 3.4.*) OPT="-g -O1 -DNDEBUG -DDEBUGVM=0";;
> *) OPT="-g -O2 -DNDEBUG -DDEBUGVM=0";;
> esac
>
> if [ $# -ge 1 ]; then
> INSTALLDIR="$1"; shift
> fi
>
> echo -n "clean? "
> read a
> case $a in
> n|no|N|NO) echo "ok but this isn't safe!!";;
> *) test -f Makefile && make reallyclean
> esac
> test -f config.h || ../../../platforms/unix/config/configure
> --without-npsqueak *--without-vm-display-fbdev --without-gl
> --x-libraries=/usr/lib \*
> CC="gcc -m32" \
> CXX="g++ -m32" \
> CFLAGS="$OPT -no-integrated-cpp -Wundef -msse2 -D_GNU_SOURCE
> -D_FILE_OFFSET_BITS=64 -DCOGMTVM=0 " \
> LIBS="-lpthread -luuid" \
> LDFLAGS=-Wl,-z,now
> rm -f vm/sqUnixMain.o # nuke version info
> rm -rf ../../../products/$INSTALLDIR
> # prefer make install prefix=`readlink -f
> \`pwd\`/../../../products/$INSTALLDIR`
> # but older linux readlinks lack the -f flag
> make install prefix=`(cd ../../../;pwd)`/products/$INSTALLDIR 2>&1 | tee
> LOG
>
>
>
>


-- 
best,
Eliot
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