The GNU Compiler Collection includes front ends for C, C++, Objective-C,
Objective-C++, Fortran, Ada, Go and D as well as libraries for these
languages (libstdc++,...). GCC was originally written as the compiler
for the GNU operating system.  The GNU system was developed to be 100%
free software, free in the sense that it respects the user's freedom.

By default, gcc14 is built with:
    --enable-languages=ada,c,c++,d,fortran,go,lto,objc,obj-c++
This may be changed by nominating a subset of the default enabled
languages as a comma separated list in the USER_LANGS environment
variable when executing the SlackBuild e.g.
    USER_LANGS="ada,c,c++,fortran" bash gcc14.SlackBuild

To use the new gcc14 compilers in preference to th defaults provided by
Slackware 15.0, run the following commands:
    export CC=gcc-14.2.0
    export CPP=cpp-14.2.0
    export CXX=g++-14.2.0
    export AR=gcc-ar-14.2.0
    export NM=gcc-nm-14.2.0
    export RANLIB=gcc-ranlib-14.2.0
    export PATH=/opt/gcc14-14.2.0/bin:$PATH

or source the appropriate /etc/default/gcc14.{sh,csh} file.