Which of the following file systems are native to *nix

Thanks to yu-re-ka for providing me with a quick-fix for this:. However, doesn't emscripten also cache all libraries that the compiled sources link against? And if that is the case, doesn't that mean that a mutable cache location is still needed, although most common libraries are already provided by the readonly cache? Whatever the case, I am personally not trying to create a nixos package, but instead want to use emscripten on the command line.

The above commands provide a way to make emscripten work on the command line by changing the cache to a mutable location. Could this behavior perhaps be implemented into the package so that using emscripten in private projects does not fail with cryptic error messages? This issue has been mentioned on NixOS Discourse. There might be relevant details there:. To the best of my knowledge, no, it doesn't. You are responsible to provide other libraries like you would with libfoo.

This is an interesting idea. Maybe we should just add a line here to check if there is a precompiled file available. That is, first try the emscripten package and then fall back to the emscripten cache in the home directory. Good suggestion. I must admit that I am looking at this from a pure user perspective.

All dependencies of Drogon and Drogon itself are already installed in the docker environment, where users can build Drogon-based applications directly. Enter the shell by running nix-shell. This will install Drogon and enter you into an environment with all its dependencies. Hello Sir, I am a Windows user and failed to find a solution for the installation of Drogon on windows on this page. Hope you'll help me to find out a solution. Home Installation This section takes Linux as an example to introduce the installation process.

Other systems are similar; System Requirements The Linux kernel should be not lower than 2. System Preparation Examples Ubuntu The installation is as follows: ubuntu 16 : sudo apt-get install postgresql-server-dev-all ubuntu 18 : sudo apt-get install postgresql-all centOS 7 : yum install postgresql-devel MacOS : brew install postgresql MySQL MySQL's native library does not support asynchronous read and write. Type: Bit: vcpkg install drogon Bit: vcpkg install drogon:xwindows wait till all dependencies are installed.

You can use the package by adding the following shell. No database is supported. We will refrain from explaining the refactoring steps full detail. The interested reader can alwas refer to the commit log.

On a high level, we proceeded as follows:. If the retured hash value is identical, we have not changed the build. The upstream emacs package thankfully has already built-in nativeComp parameter! I am pretty sure we should be able to set this with a command-line switch --args , but I could not get this to work. The jansson dependency is already speficified. With this changes, nix-build goes right through an we should have a fully functional emacs --with-json and --with--native-compilation running!

To be sure, we check this by printing the lisp variable system-configuration-options which contains a copy of the build flags:. The complete build definition can be found here.

In going through the above steps, one notes, that there were actually very few modifications to the stock emacs package necessary to build the latest emacs head version: We changed src , added a preConfigure entry, and specified two more dependencies. It is possible to apply those changes to upstream derivation, using the package overrides mechanism. The resulting file looks like this:.

Most of the changes shoudl be self-explanatory. Note, that we use. This is the emacs version that I am currently using on my Linux machine. It allows me to leverage the upstream maintenance efforts and only maintain a minimal set of changes that is necessary to build the latest master, with my desired configuration. There is a community maintained emacs-overlay repository available, which seems like it does the job of building the latest emacs with the desired configuration.

Initially I discatded this overlay since it looked quite involved requireing use of NixOs or Home Manager , and does a fair bit more than we need for our set-goal. After having worked through the above versions, I think I understand now how to navigate this complexity, and produce a stand-alone nix-file GH that leverages this overlay:. In order to add this, we would need to specify overrides as we did above.