This directory contains the GNU Compiler Collection (GCC).
The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details.
The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs.
See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*.
See http://gcc.gnu.org/bugs/ for how to report bugs usefully.
Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.
The source is based on the code of easyname and has been modified to compile successfully. Branches for Ubuntu 16.04 LTS and 18.04 LTS are available.
git clone [email protected]:huberthomas/gcc-6.3.git
cd gcc-6.3
./contrib/download_prerequesites
mkdir build && cd build
Configure it and set the installation directory by modifying the prefix parameter
../configure -v --prefix=/usr/local/gcc-6.3 --disable-multilib
make -j$(nproc)
sudo make install
Afterwards you can use update-alternatives to switch between gcc versions:
sudo update-alternatives --install /usr/bin/gcc gcc /usr/local/gcc-6.3/bin/gcc 6
for other versions
ls -l /usr/bin/gcc*
you can do the same, e.g.
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 7
Switch between the gcc versions by
sudo update-alternatives --config gcc
Test it by
gcc --version
Thanks to the contributors of gcc-6.3.