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Add compile instructions for OpenBSD
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README.md
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README.md
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@ -33,6 +33,7 @@
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* [Compilation Linux](#compilation-linux)
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* [Compilation macOS](#compilation-macos-osx)
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* [Compilation FreeBSD](#compilation-freebsd)
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* [Compilation OpenBSD](#compilation-openbsd)
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* [GPU compatibility](#gpu-compatibility)
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* [Installing the snap](#installing-the-snap)
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* [Configurability](#configurability)
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@ -868,6 +869,100 @@ Also needs a UTF8 locale and a font that covers:
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</details>
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## Compilation OpenBSD
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Requires at least GCC 10.
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Note that GNU make (`gmake`) is required to compile on OpenBSD.
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<details>
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<summary>
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### With gmake
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</summary>
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1. **Install dependencies**
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```bash
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pkg_add gmake gcc%11 g++%11 coreutils git
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```
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2. **Clone repository**
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```bash
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git clone https://github.com/aristocratos/btop.git
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cd btop
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```
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3. **Compile**
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```bash
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gmake CXX=eg++
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```
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Options for make:
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| Flag | Description |
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|---------------------------------|-------------------------------------------------------------------------|
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| `VERBOSE=true` | To display full compiler/linker commands |
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| `STATIC=true` | For static compilation (only libgcc and libstdc++) |
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| `QUIET=true` | For less verbose output |
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| `STRIP=true` | To force stripping of debug symbols (adds `-s` linker flag) |
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| `DEBUG=true` | Sets OPTFLAGS to `-O0 -g` and enables more verbose debug logging |
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| `ARCH=<architecture>` | To manually set the target architecture |
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| `ADDFLAGS=<flags>` | For appending flags to both compiler and linker |
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| `CXX=<compiler>` | Manualy set which compiler to use |
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Example: `gmake ADDFLAGS=-march=native` might give a performance boost if compiling only for your own system.
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4. **Install**
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```bash
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sudo gmake install
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```
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Append `PREFIX=/target/dir` to set target, default: `/usr/local`
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Notice! Only use "sudo" when installing to a NON user owned directory.
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5. **(Recommended) Set suid bit to make btop always run as root (or other user)**
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```bash
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sudo gmake setuid
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```
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No need for `sudo` to see information for non user owned processes and to enable signal sending to any process.
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Run after make install and use same PREFIX if any was used at install.
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Set `SU_USER` and `SU_GROUP` to select user and group, default is `root` and `wheel`
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* **Uninstall**
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```bash
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sudo gmake uninstall
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```
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* **Remove any object files from source dir**
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```bash
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gmake clean
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```
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* **Remove all object files, binaries and created directories in source dir**
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```bash
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gmake distclean
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```
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* **Show help**
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```bash
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gmake help
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```
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</details>
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## Installing the snap
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[![btop](https://snapcraft.io/btop/badge.svg)](https://snapcraft.io/btop)
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