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Cmake vs make install9/16/2023 ![]() In this case, you must ask the author of the application to make it relocatable. If your app doesn’t load resources from the AppImage, but e.g., shows errors it couldn’t find resources, it is most likely not relocatable. In order to be packaged as AppImages, applications must load the resources relative to their main binary, and not from a hardcoded path (usually /usr/.). The following section describes how it can be used to deploy dependencies of applications into an AppDir that was created using the methods described in the previous section, and shows how this AppDir can eventually be packaged as an AppImage. Its primary focus is on AppDirs, and it uses plugins to create output formats such as AppImages. Linuxdeploy describes itself as an “AppDir maintenance tool”. The following guide shows how linuxdeploy is used for this purpose. Now that we have the basic AppDir, we need to bundle dependencies into it to make the AppDir self-contained in preparation to make an AppImage from it. Using linuxdeploy for building AppImages Now, you have a new directory AppDir which ideally contains all the binaries, shared libraries etc., just like after finishing the CMake method. > make -j $(nproc ) # use make install to prepare the AppDir # create out-of-source build dir and run qmake to prepare the Makefile ![]() in a way defined by the application author, this method provides a very easy and fast way to set up the basic AppDir. If you use a modern build system (such as for instance CMake or qmake), you can use the provided make install commands to create an AppDir-like directory that can be used with linuxdeploy.Īs install configurations usually install all binaries, libraries, resources etc. ![]() Using the build system to build the basic AppDir In this section, it is described how apps that were built from source can be packaged into AppDirs, from which AppImages are being generated. Packaging existing binaries (or: manually packaging everything)īundling additional resources using linuxdeploy pluginsīuild AppImages from AppDir using linuxdeployīuilding applications from source and packaging them as AppImages is the most common scenario. Using the build system to build the basic AppDir Plugins can either bundle additional resources for e.g., frameworks such as Qt, toolkits such as GTK, but are also used to provide output generators, e.g., for AppImages. It features a plugin system for greater flexibility in use. Its primary focus is on AppDirs, AppImage is just one possible output format. Linuxdeploy is an AppDir maintenance tool. The one we are going to use in this guide is linuxdeploy. These tools are semi-automatic, and ship with various features needed to bundle said shared library dependencies correctly. The AppImage team provides tools that simplify the packaging process significantly. But for now, let’s assume we have a basic binary application (this is the most common type). ![]() Also, some applications try to load libraries dynamically during the runtime. Of course, some applications might require additional resources, e.g., icon files. These are the primary dependencies you will have to ship with your application. Native binaries have a well defined and reliable behavior to find their runtime dependencies, the so-called shared libraries. The easiest packaging methods are available for native binaries, like e.g., produced when compiling C++ or C code. ![]()
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