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CMake: Enable OpenBSD

This commit is contained in:
Steffen Winter 2024-01-15 16:00:54 +01:00
parent cec251bf05
commit 57752df6fc
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8
CMakeLists.txt
View File

@ -65,6 +65,8 @@ if(APPLE)
target_sources(btop PRIVATE src/osx/btop_collect.cpp src/osx/sensors.cpp src/osx/smc.cpp)
elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
target_sources(btop PRIVATE src/freebsd/btop_collect.cpp)
elseif(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
target_sources(btop PRIVATE src/openbsd/btop_collect.cpp src/openbsd/sysctlbyname.cpp)
elseif(LINUX)
target_sources(btop PRIVATE src/linux/btop_collect.cpp)
else()
@ -185,6 +187,12 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
find_package(kvm REQUIRED)
target_link_libraries(btop elf::elf kvm::kvm)
endif()
elseif(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
target_compile_options(btop PRIVATE -static-libstdc++)
endif()
find_package(kvm REQUIRED)
target_link_libraries(btop kvm::kvm)
endif()
install(TARGETS btop RUNTIME)

68
README.md
View File

@ -995,6 +995,74 @@ If you have an AMD GPU `rocm_smi_lib` is required, which may or may not be packa
gmake help
```
</details>
<details>
<summary>
### With CMake (Community maintained)
</summary>
1. **Install build dependencies**
Requires GCC, CMake, Ninja and Git
_**Note:** LLVM's libc++ shipped with OpenBSD 7.4 is too old and cannot compile btop._
```bash
pkg_add cmake g++%11 git ninja
```
2. **Clone the repository**
```bash
git clone https://github.com/aristocratos/btop.git && cd btop
```
3. **Compile**
```bash
# Configure
CXX=eg++ cmake -B build -G Ninja
# Build
cmake --build build
```
This will automatically build a release version of btop.
Some useful options to pass to the configure step:
| Configure flag | Description |
|---------------------------------|-------------------------------------------------------------------------|
| `-DBTOP_LTO=<ON\|OFF>` | Enables link time optimization (ON by default) |
| `-DBTOP_USE_MOLD=<ON\|OFF>` | Use mold to link btop (OFF by default) |
| `-DBTOP_PEDANTIC=<ON\|OFF>` | Compile with additional warnings (OFF by default) |
| `-DBTOP_WERROR=<ON\|OFF>` | Compile with warnings as errors (OFF by default) |
| `-DBTOP_FORTIFY=<ON\|OFF>` | Detect buffer overflows with `_FORTIFY_SOURCE=3` (ON by default) |
| `-DCMAKE_INSTALL_PREFIX=<path>` | The installation prefix ('/usr/local' by default) |
To force any other compiler, run `CXX=<compiler> cmake -B build -G Ninja`
4. **Install**
```bash
cmake --install build
```
May require root privileges
5. **Uninstall**
CMake doesn't generate an uninstall target by default. To remove installed files, run
```
cat build/install_manifest.txt | xargs rm -irv
```
6. **Cleanup build directory**
```bash
cmake --build build -t clean
```
</details>
## Installing the snap