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 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 ? Dennis