On 2 October 2015 at 11:51, dclarke@blastwave.org wrote:
Dear gcc types :
It has been a while since I tried to bootstrap gcc and with the latest
production release 5.2.0 and I see on the "Prerequisites for GCC" page
that "ISL Library version 0.15, 0.14, 0.13, or 0.12.2" is required as
per https://gcc.gnu.org/install/prerequisites.html
It's not required, because it's only used for the optional Graphite
optimisations.
I therefore fetched isl 0.15 from the infrastructure ftp site :
ftp://gcc.gnu.org/pub/gcc/infrastructure/isl-0.15.tar.bz2
I extracted it into the gcc 5.2.0 source tree and created a symlink
from isl-0.15 to isl thus :
# bzip2 -dc ../../src/isl-0.15.tar.bz2 | tar -xf -
# ln -s ./isl-0.15 ./isl
This results in the in-tree extracted sources for the pre-requisites :
# ls -lad gmp-6.0.0 gmp mpfr-3.1.3 mpfr mpc-1.0.3 mpc isl isl-0.15
lrwxrwxrwx 1 root root 11 Sep 21 22:14 gmp -> ./gmp-6.0.0
drwxr-xr-x 15 1001 root 70 Mar 25 2014 gmp-6.0.0
lrwxrwxrwx 1 root root 10 Oct 2 10:46 isl -> ./isl-0.15
drwxrwxr-x 9 1000 1000 187 Jun 11 10:47 isl-0.15
lrwxrwxrwx 1 root root 11 Sep 21 22:14 mpc -> ./mpc-1.0.3
drwxr-xr-x 6 1001 1001 29 Feb 16 2015 mpc-1.0.3
lrwxrwxrwx 1 root root 12 Sep 21 22:15 mpfr -> ./mpfr-3.1.3
drwxr-xr-x 9 1000 1000 35 Jun 19 19:55 mpfr-3.1.3
I then do configure in a build directory as per usual and then try
a bootstrap using my available gcc compiler thus :
mimas_# which gcc
/usr/local/gcc4/bin/gcc
mimas_# gcc --version
gcc (genunix Fri Jan 2 11:56:03 GMT 2015) 4.9.2
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is
NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
The make process runs for hours and then fails :
.
.
.
In file included from
/usr/local/build/gcc-5.2.0/isl/include/isl/map_type.h:4:0,
from
/usr/local/build/gcc-5.2.0/isl/include/isl/set.h:13,
from ../../gcc-5.2.0/gcc/graphite.c:38:
/usr/local/build/gcc-5.2.0/isl/include/isl/ctx.h:83:17: warning: comma
at end of enumerator list [-Wpedantic]
isl_stat_ok = 0,
^
In file included from ../../gcc-5.2.0/gcc/graphite.c:88:0:
../../gcc-5.2.0/gcc/graphite-poly.h:398:43: error: 'isl_constraint' has
not been declared
extern void print_isl_constraint (FILE *, isl_constraint *);
^
../../gcc-5.2.0/gcc/graphite-poly.h:402:35: error: variable or field
'debug_isl_constraint' declared void
extern void debug_isl_constraint (isl_constraint *);
^
../../gcc-5.2.0/gcc/graphite-poly.h:402:35: error: 'isl_constraint' was
not declared in this scope
../../gcc-5.2.0/gcc/graphite-poly.h:402:51: error: expected
primary-expression before ')' token
extern void debug_isl_constraint (isl_constraint *);
^
gmake[3]: *** [graphite.o] Error 1
gmake[3]: Leaving directory
`/usr/local/build/gcc-5.2.0_SunOS5.10_sparcv9.001/gcc'
gmake[2]: *** [all-stage1-gcc] Error 2
gmake[2]: Leaving directory
`/usr/local/build/gcc-5.2.0_SunOS5.10_sparcv9.001'
gmake[1]: *** [stage1-bubble] Error 2
gmake[1]: Leaving directory
`/usr/local/build/gcc-5.2.0_SunOS5.10_sparcv9.001'
gmake: *** [all] Error 2
Wondering if isl 0.15 is really ready to go or should I use a previous
version or can I remove the isl bits entirely ?
You don't need ISL to build GCC and can remove it entirely.
Or you can run ./contrib/download_prerequisites to fetch known-good
versions (that uses isl-0.14)