GCC Installation

GCC Installation Guide

The installation procedures for GCC (GNU Compiler Collection) are different for Linux and macOS.

First check the GCC version on your operating system.

$ gcc --version

parKVFinder supports GCC versions later than 6. Otherwise, you must install a newer GCC version.

Linux

To install the standard available version of GCC on your operating system, type:

$ sudo apt install gcc

Note: check the GCC version again to make sure you have installed a version later than 6.

If the default version GCC is not later than 6, you can install directly any later version by typing:

# GCC version 6
$ sudo apt install gcc-6
# GCC version 7
$ sudo apt install gcc-7
# GCC version 8
$ sudo apt install gcc-8
# GCC version 9
$ sudo apt install gcc-9

Then, there are two possible paths to prepare GCC to compile the parKVFinder source code.

• Create a symbolic link to your custom GCC

$ sudo ln -s /usr/bin/gcc-X /usr/local/bin/gcc

Note: X is the version of GCC you have installed.

• Replace gcc to gcc-X in Makefile within the parKVFinder directory

macOS

The macOS native C compiler is Clang LLVM compiler, which is not supported by parKVFinder.

First, you need to install:

• Homebrew package manager;
• Command Line Tools (CLT) for Xcode (xcode-select --install) or Xcode.

To install the standard available version of GCC on your Homebrew package manager, type:

$ brew install gcc

Note: check the GCC version, using brew info gcc, to make sure you have installed a version later than 6. Also, Homebrew installation will not override Clang LLVM compiler link.

If the default version GCC is not later than 6, you can install directly any version by typing:

# GCC version 6
$ brew install gcc@6
# GCC version 7
$ brew install gcc@7
# GCC version 8
$ brew install gcc@8
# GCC version 9
$ brew install gcc@9
# GCC version 10
$ brew install gcc@10

Then, there are two possible paths to prepare GCC to compile the parKVFinder source code.

• Create a symbolic link to your custom GCC

$ sudo ln -s $(brew --prefix)/bin/gcc-X /usr/local/bin/gcc

Note: X is the version of GCC you have installed.

• Replace gcc to gcc-X in Makefile within the parKVFinder directory

$ sed -i -e 's/gcc/gcc-X/' Makefile

Note: X is the version of GCC you have installed.

---