I tried install on my Debian strench g++-4.9 and I didn't find package viaapt-cache search g++-4.9Oldest version I found only g++-5Where can I get g++-4.9? I need it to school.Thank you for your help.
How install g++ 4.9 on debian stretch
debian;g++
http://ftp.us.debian.org/debian/pool/main/g/gcc-4.9/Note the following useful answer: https://askubuntu.com/a/428199/456089Instead, simply download all these:binutils_2.25-5_amd64.debcpp_4.9.2-2_amd64.debg++_4.9.2-2_amd64.debgcc_4.9.2-2_amd64.debgcc-4.9-base_4.9.2-10_amd64.deblibasan1_4.9.2-10_amd64.deblibatomic1_4.9.2-10_amd64.deblibcilkrts5_4.9.2-10_amd64.deblibgcc1_4.9.2-10_amd64.deblibgcc-4.9-dev_4.9.2-10_amd64.deblibgomp1_4.9.2-10_amd64.deblibitm1_4.9.2-10_amd64.debliblsan0_4.9.2-10_amd64.deb libmpfr4_3.1.2-2_amd64.deblibquadmath0_4.9.2-10_amd64.deblibstdc++-4.9-dev_4.9.2-10_amd64.deblibstdc++6libtsan0_4.9.2-10_amd64.deblibubsan0_4.9.2-10_amd64.debFrom Debian's servers, e.g.:http://ftp.us.debian.org/debian/pool/main/b/binutils/binutils_2.25-5_amd64.debThen install them, e.g.: $ for package in *.deb; do sudo dpkg  --install $package; doneNote that you might hit some issues with dependencies, so you want to use as few of the packages in that list as you can get away with.