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How to write makefile for c program gcc how to#
How to write makefile for c program gcc install#
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On Debian / Ubuntu, the package name of the shared library’s development version typically ends with -dev. The second package libsqlite3-dev contains the development related files. The first package libsqlite3-0 contains just the shared library (the. This is how Ubuntu named the two different packages: Take the previously mentioned libsqlite shared library as an example. The shared library combined wit the the development related files.Just the actual shared library, so the.Keep in mind though that each shared library comes in two different packages: Debian / Ubuntu / Raspberry PI: apt or synaptic (GUI).Either directly from the terminal or with its graphical user interface counterpart:

How to write makefile for c program gcc install#

Ideally, you install the shared library using your Linux distribution’s package manager. From your Linux distribution’s package manager In this latter case, you do need to manually build and install the shared library.

How to write makefile for c program gcc download#

Alternatively, you can download the shared library’s source code. How do you actually get your hands on a shared library? Your Linux distribution offers packages for popular and commonly used shared libraries in its online package repository. The next section includes installation instructions for this unit conversion shared library.

Create a shared library in C with CMake.

We’ll use the example unit conversion shared library, featured in the tutorial: The remaining puzzle piece is the shared library itself.

openSUSE Tumbleweed / Leap: sudo zypper install gcc gcc-c++ gdb make cmake.

Fedora: sudo dnf install gcc g++ gdb make cmake.

Debian / Ubuntu / Raspberry PI: sudo apt install gcc g++ gdb make cmake.

The instructions for installing the packages needed for C development, for popular Linux distributions:

How to write makefile for c program gcc how to#

How to install Ubuntu Desktop in VirtualBox.

If you currently do not have access to a Linux PC, consider quickly setting up Ubuntu in a virtual machine:

A shared library installed on your Linux system.

Linux system with C development related packages installed.

To follow along with the hands-on part of this article, you essentially need two things:

Automatically generating your application’s build environment with CMake.

Building your application with the help of a Makefile.

Calling GCC directly in the terminal, to build your application and link the shared library.

I’ll explain how you can link a shared library to your application, built with the GCC toolchain. Once you found and installed the shared library on your Linux system, the next hurdle shows up: How do you actual build your application, such that the GCC compiler finds and properly links the shared library to your application? That’s exactly the question this article sets out to answer.

How to write makefile for c program gcc code#

When your search did not yield any results, you can expand your search to online code repositories hosted on platforms such as GitHub and GitLab. To find a suitable shared library, you can search through your Linux distribution’s package manager.

Interested in communicating with a USB device? Libusb to the rescue. Need to download a file from the Internet? Check out libcurl. Let’s say you want to store your application’s settings in an SQLite database file. Why reinvent the wheel if someone already developed a similar piece of functionality? As a C (or C++) application developer, you can speed up your application development, by integrating shared libraries into your application. so extension, which stands for Shared Object. On Linux a shared library is a file with the. BackgroundĪ shared library packs compiled code of functionality that the developer wants to share with other developers. It covers three scenarios: (1) Calling GCC directly from the terminal, building with a Makefile and auto-generating the build environment with CMake. Interested in using a shared library in your C or C++ application? Not sure how to build your application with the GCC compiler, such that it properly links the shared library? This article explains how to link a shared library to your application, built with the GCC toolchain.