Fork me on GitHub

GNU Compiler Collection (gcc)

The GNU Compiler Collection (gcc) is a widely used, free collection of compilers including C (gcc), C++ (g++) and Fortran (gfortran). The defaut version of gcc on the system is 4.8.5

$ gcc -v

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC)

It is possible to switch to other versions of the gcc compiler suite using modules. After connecting to ShARC (see Establishing a SSH connection), start an interactive sesssion with the qrshx command. Choose the version of the compiler you wish to use using one of the following commands

module load dev/gcc/8.2
module load dev/gcc/6.3
module load dev/gcc/6.2
module load dev/gcc/5.4

Confirm that you’ve loaded the version of gcc you wanted using gcc -v.

Language support

Documentation

man pages are available on the system. Once you have loaded the required version of gcc, type

man gcc

Installation Notes

These notes are primarily for system administrators:

Version 8.2

Version 6.3

Version 6.2

Version 5.4

Version 4.9.4