mirror of
https://github.com/mappu/miqt.git
synced 2024-12-22 17:08:38 +00:00
28 lines
1.3 KiB
Markdown
28 lines
1.3 KiB
Markdown
|
# pkg-config
|
||
|
|
|
||
|
|
MIQT always uses [pkg-config](https://people.freedesktop.org/~dbn/pkg-config-guide.html) to find C++ libraries to bind to.
|
||
|
|
|
||
|
|
For Qt Widgets, the `.pc` definition is supplied along with Qt, but for other third-party libraries, definitions might not be present. To use such third-party libraries, one option is to set the `CGO_CFLAGS`, `CGO_CXXFLAGS`, `CGO_LDFLAGS` environment variables for `go build`. However, this has a global effect and may cause issues if you use multiple libraries. Therefore, another option is to create a pkg-config file.
|
||
|
|
|
||
|
|
To specify the CFLAGS/CXXFLAGS and LDFLAGS for a specific library, make a `MyLibrary.pc` file as follows:
|
||
|
|
|
||
|
|
```pkgconfig
|
||
|
|
Name: My Library
|
||
|
|
Libs: -lfoo
|
||
|
|
Cflags: -I/path/
|
||
|
|
```
|
||
|
|
|
||
|
|
Then run `PKG_CONFIG_PATH=/path/to/dir/ go build` so CGO will find your library. Then, the necessary flags for your system will be used only as required for the specific package.
|
||
|
|
|
||
|
|
The `PKG_CONFIG_PATH` environment variable is understood both by CGO and by genbindings.
|
||
|
|
|
||
|
|
## Further reading
|
||
|
|
|
||
|
|
- [Guide to pkg-config](https://people.freedesktop.org/~dbn/pkg-config-guide.html)
|
||
|
|
|
||
|
|
```bash
|
||
|
|
# Find where pkg-config looks for system libraries
|
||
|
|
$ pkg-config --variable pc_path pkg-config
|
||
|
|
/usr/local/lib/x86_64-linux-gnu/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig
|
||
|
|
```
|