Hi,
I found the FAQ that addresses my problem but can not follow the
solution.
We are standing up an Intel RHEL7 cluster. It has 4.8.5 as a base:
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info
--with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap
--enable-shared --enable-threads=posix --enable-checking=release
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-gnu-unique-object --enable-linker-build-id
--with-linker-hash-style=gnu
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto
--enable-plugin --enable-initfini-array --disable-libgcj
--with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install
--with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install
--enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC)
*******************
I built the GMP, MPFR, MPC and ISL out of the Infrastructure directories
and configured 6.3.0 with:
./configure --prefix=/N/soft/rhel7/gcc/6.3.0 --enable-fixed-point
--with-long-double-128 --enable-host-shared --disable-multilib
--enable-threads --with-gmp=/N/soft/rhel7/gcc/infrastructure
--with-mpfr=/N/soft/rhel7/gcc/infrastructure
--with-mpc=/N/soft/rhel7/gcc/infrastructure
--with-isl=/N/soft/rhel7/gcc/infrastructure
This seemed to run. I typed make. After some time, I received this:
checking whether ln -s works... yes
checking for x86_64-pc-linux-gnu-gcc...
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/xgcc
-B/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/bin/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/lib/ -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/include -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/sys-include
checking for suffix of object files... configure: error: in
`/N/soft/rhel7/gcc/build/gcc-6.3.0/x86_64-pc-linux-gnu/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
make[2]: *** [configure-stage1-target-libgcc] Error 1
make[2]: Leaving directory `/gpfs/hps/soft/rhel7/gcc/build/gcc-6.3.0'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/gpfs/hps/soft/rhel7/gcc/build/gcc-6.3.0'
make: *** [all] Error 2
*****************************
I started searching mails and the FAQ. In the FAQ which addresses this
error, it says:
You have to check the file 'config.log' in the directory where the error
occurred. In the example above, you would have to check the 'config.log'
file in the directory '/home/manu/gcc/gcc/i686-pc-linux-gnu/libgcc'.
******************************
So in my case, I would check
/N/soft/rhel7/gcc/build/gcc-6.3.0/x86_64-pc-linux-gnu/libgcc/config.log.
All looks well at first until:
Configured with: ./configure --prefix=/N/soft/rhel7/gcc/6.3.0
--enable-fixed-point --with-long-double-128 --enable-host-shared
--disable-multilib --enable-threads
--with-gmp=/N/soft/rhel7/gcc/infrastructure
--with-mpfr=/N/soft/rhel7/gcc/infrastructure
--with-mpc=/N/soft/rhel7/gcc/infrastructure
--with-isl=/N/soft/rhel7/gcc/infrastructure
Thread model: posix
gcc version 6.3.0 (GCC)
configure:3446: $? = 0
configure:3435:
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/xgcc
-B/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/bin/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/lib/ -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/include -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/sys-include -V >&5
xgcc: error: unrecognized command line option '-V'
xgcc: fatal error: no input files
compilation terminated.
configure:3446: $? = 1
configure:3435:
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/xgcc
-B/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/bin/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/lib/ -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/include -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/sys-include -qversion >&5
xgcc: error: unrecognized command line option '-qversion'; did you mean
'--version'?
xgcc: fatal error: no input files
compilation terminated.
configure:3446: $? = 1
configure:3462:
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/xgcc
-B/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/bin/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/lib/ -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/include -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/sys-include -o conftest
-g -O2 conftest.c >&5
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/cc1:
error while loading shared libraries: libisl.so.15: cannot open shared
object file: No such file or directory
configure:3465: $? = 1
configure:3653: checking for suffix of object files
configure:3675:
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/xgcc
-B/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/bin/
-B/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/lib/ -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/include -isystem
/N/soft/rhel7/gcc/6.3.0/x86_64-pc-linux-gnu/sys-include -c -g -O2
conftest.c >&5
/N/soft/rhel7/gcc/build/gcc-6.3.0/host-x86_64-pc-linux-gnu/gcc/cc1:
error while loading shared libraries: libisl.so.15: cannot open shared
object file: No such file or directory
configure:3679: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/";
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:3693: error: in
`/N/soft/rhel7/gcc/build/gcc-6.3.0/x86_64-pc-linux-gnu/libgcc':
configure:3696: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
**************************
Of course, that is the config.log that I am reading already. So I end
up back in a circle. Any enlightenment would be very much appreciated.
Thanks.
Ray
