Hi Benjamin Beurdouche wrote: > Sorry I did copy the wrong line Š > Did you try to give the path of mpfr directly in the configuration step ? > > > ../configure --prefix=/opt/linux_4.7.1 --with-mpfr=/where-you-put-it > --enable-languages=c,c++ > > Installation of prerequisites to the default path will also not work! The only way I found to get the things work is to install all packets to exact one path and give all the path information manually to all the packages and the compiler configure itself: tar -xjf ../avrdownload/gmp-5.0.5.tar.bz2 cd gmp-5.0.5/ ./configure --enable-cxx --prefix=/opt/linux-gnu_4.7.1 make sudo make install --------- tar -xjf ../avrdownload/mpfr-3.1.1.tar.bz2 cd mpfr-3.1.1/ ./configure --prefix=/opt/linux-gnu_4.7.1 --with-gmp=/opt/linux-gnu_4.7.1 make sudo make install ------ tar -xzf ../avrdownload/mpc-1.0.tar.gz cd mpc-1.0/ ./configure --prefix=/opt/linux-gnu_4.7.1 --with-gmp=/opt/linux-gnu_4.7.1 --with-mpfr=/opt/linux-gnu_4.7.1 make sudo make install --------- tar -xjf ~/avrdownload/ppl-1.0.tar.bz2 cd ppl-1.0/ ./configure --prefix=/opt/linux-gnu_4.7.1 --with-gmp=/opt/linux-gnu_4.7.1 make sudo make install ----------- tar -xjf ../../avrdownload/gcc-4.7.1.tar.bz2 mkdir build_linux cd build_linux ../configure --prefix=/opt/linux-gnu_4.7.1 --with-mpfr=/opt/linux-gnu_4.7.1 --with-mpc=/opt/linux-gnu_4.7.1 --with-ppl=/opt/linux-gnu_4.7.1 --with-gmp=/opt/linux-gnu_4.7.1 --enable-languages=c,c++ make -j8 sudo make install For me it looks that there is no way to simply copy the prerequisite packages to the compiler and start configure/make. Regards Klaus
