Hi Jonathan Thank you for your reply. I decided to try a different version; gcc-5.2.0 which seems to fail at the exact step: make[2]: Leaving directory `......../gcc/gcc-5.2.0-work/powerpc64-bgq-linux/libgcc' /bin/sh: line 3: cd: powerpc64-bgq-linux/libstdc++-v3: No such file or directory make[1]: *** [install-target-libstdc++-v3] Error 1 I removed cloog and used isl, gmp, mpc and mpfr with the versions given in the script gcc-5.2.0/contrib/download_prerequisites. I also removed most of the options of the configure which didn't make a difference, even failed earlier stages. So I'm using exact same options except -ppl and -cloog. One quick question: >> --target=powerpc64-bgq-linux \ >> --host=powerpc64-linux-gnu \ >> --build=powerpc64-linux-gnu \ > > Those host and build values look wrong. Why? > We don't know what your script does so can't really help. The script is quite long however it is doing something very simple at its core: It creates the gcc-VERSION-work directory and calls configure with the options from the gcc-VERSION/ as it is suggested in the documentation. It then runs make & make install. This is the list of libraries found in gcc-5.2.0-work/powerpc64-bgq-linux/ libatomic libgcc libgomp libquadmath libssp So my question is, what makes those ones compiled but not libstdc++-v3? Many thanks // Fatih Ertinaz On Wed, Feb 21, 2018 at 6:27 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 21 February 2018 at 22:33, Fatih Ertinaz wrote: >> Dear all >> >> I am trying to install Gcc-5.5.0 on a BGQ Cluster using a build script >> which successfully installs Gcc-4.8.1. >> >> I didn't change much of that script, just the versions of required libs: >> binutils-2.30 >> gmp-6.1.2 >> mpfr-4.0.1 >> mpc-1.1.0 >> isl-0.17.1 >> cloog-0.18. > > Did you read the prerequisites requirements for gcc-5.5.0? Because it > doesn't need cloog, and it requires isl 0.14 or 1.12.2 not 0.17.1 > > See the file gcc-5.5.0/gcc/doc/install.texi, or just follow the > suggestions in https://gcc.gnu.org/wiki/InstallingGCC > > >> In my attempts, make fails at: >> /usr/bin/install -c -m 644 unwind.h >> ...../gcc-5.5.0/lib/gcc/powerpc64-bgq-linux/5.5.0/include >> make[2]: Leaving directory `...../gcc/gcc-5.5.0-work/powerpc64-bgq-linux/libgcc' >> /bin/sh: line 3: cd: powerpc64-bgq-linux/libstdc++-v3: No such file or directory >> make[1]: *** [install-target-libstdc++-v3] Error 1 >> >> "libstdc++-v3" exists in gcc-5.5.0 source folder. So it comes with the >> package however is not copied to gcc-5.5.0-work folder somehow. > > It's not supposed to get copied anywhere, the gcc-5.5.0/libstdc++-v3 > directory contains the source code. powerpc64-bgq.linux/libstdc++-v3 > is supposed to contain the compiled objects and libraries. > >> Also from the log.make: >> checking whether the ...../gcc/gcc-5.5.0-work/./gcc/xgcc >> -B/..../gcc/gcc-5.5.0-work/./gcc/ >> -B/..../gcc-5.5.0/powerpc64-bgq-linux/bin/ >> -B/..../gcc-5.5.0/powerpc64-bgq-linux/lib/ -isystem >> /..../gcc-5.5.0/powerpc64-bgq-linux/include -isystem >> /..../gcc-5.5.0/powerpc64-bgq-linux/sys-include linker >> (/..../gcc/gcc-5.5.0-work/./gcc/collect-ld) supports shared >> libraries... yes >> checking whether -lc should be explicitly linked in... no >> checking dynamic linker characteristics... no >> checking dynamic linker characteristics... make[1]: Leaving directory >> `...../gcc/gcc-5.5.0-work' >> >> Any help is much appreciated > > We don't know what your script does so can't really help. > >> Fatih Ertinaz >> >> Configuration flags: >> configure --prefix $INSTALLDIR --disable-bootstrap >> --program-suffix=${GCC_VER} --enable-lto \ >> --disable-checking --enable-shared \ >> --enable-threads=posix --enable-gomp \ >> --target=powerpc64-bgq-linux \ >> --host=powerpc64-linux-gnu \ >> --build=powerpc64-linux-gnu \ > > Those host and build values look wrong. > > >> --enable-secureplt --disable-libmudflap \ >> --disable-libspp --disable-libgcj \ >> --enable-languages=c,c++,fortran,lto \ >> --disable-multilib --with-long-double-128 \ >> --with-headers=${SYSROOT}/sys-include \ >> --with-libs=${SYSROOT}/lib \ >> --with-bin=${SYSROOT}/bin \ >> --with-sbin=${SYSROOT}/sbin \ >> --with-gmp=$INSTALLDIR/requiredLibs \ >> --with-mpc=$INSTALLDIR/requiredLibs \ >> --with-mpfr=$INSTALLDIR/requiredLibs \ > > You're doing this the complicated way (IMHO the wrong way). See > https://gcc.gnu.org/wiki/InstallingGCC for a better way. > > >> --with-ppl=$INSTALLDIR/requiredLibs \ >> --with-cloog=$INSTALLDIR/requiredLibs --enable-cloog-backend=isl > > Do you really need the Graphite optimizations? If not you can just > avoid using ISL (or ppl, or cloog) entirely.