Fortran corelib (fcore)

June 8, 2026 ยท View on GitHub

A Fortran library that provides some basic functionality taken for granted in other languages or their standard libraries, such as a string type, command-line argument parsing, etc.

Installation

Linux

The library has been tested with the following compilers:

  1. GNU gfortran 11.x to 16.x
  2. Intel ifort 2021.x, ifx 2024

To compile and install fcore, adapt the following to your environment:

Bash

# Define GCC compiler version
GCC_VERSION=16

# Path to source directory
SRC_DIR=$HOME/repos/fortran-corelib

# Define installation prefix
INSTALL_PREFIX=$HOME/.local

# Build directory
BUILD_DIR=$HOME/build/gnu/${GCC_VERSION}/fortran-corelib

mkdir -p "${BUILD_DIR}"
cd "${BUILD_DIR}"

Fish

# Define GCC compiler version
set GCC_VERSION 16

# Path to source directory
set SRC_DIR $HOME/repos/fortran-corelib

# Define installation prefix
set INSTALL_PREFIX $HOME/.local

# Build directory
set BUILD_DIR $HOME/build/gnu/$GCC_VERSION/fortran-corelib

mkdir -p $BUILD_DIR
cd $BUILD_DIR

Ubuntu

On Debian/Ubuntu, the project can now be configured as follows:

Bash
FC=gfortran-${GCC_VERSION} CC=gcc-${GCC_VERSION} \
cmake -DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX} ${SRC_DIR}
Fish
env FC=gfortran-$GCC_VERSION CC=gcc-$GCC_VERSION \
cmake -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX $SRC_DIR

Fedora

On Fedora, the default GCC compiler does not have a version suffix, so the following should be used instead:

Bash
FC=gfortran CC=gcc cmake -DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX} ${SRC_DIR}
Fish
env FC=gfortran CC=gcc cmake -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX $SRC_DIR

To build and install the project, run:

Building and installing

cmake --build .
cmake --install .

Usage

To integrate the library in your own CMake project, augment your CMakeLists.txt as follows. See also the minimal client in examples/client/.

cmake_minimum_required(VERSION 3.12)

project(fcore_client Fortran)

find_package(fcore REQUIRED)

add_executable(client client.f90)
target_link_libraries(client fcore::fcore)

Author

Richard Foltyn

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.