README: clarify dependency on giflib and libwebp

this makes it clear that giflib and libwebp are unused if imlib2 version
is sufficient for multi-frame decoding.

ref: https://codeberg.org/nsxiv/nsxiv/issues/442#issuecomment-912175
This commit is contained in:
NRK 2023-05-13 21:51:57 +06:00
parent 657080a7e5
commit d7e149dbda
1 changed files with 6 additions and 2 deletions

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@ -77,10 +77,14 @@ The following dependencies are optional.
Disabled via `HAVE_INOTIFY=0`. Disabled via `HAVE_INOTIFY=0`.
* `libXft`, `freetype2`, `fontconfig`: Used for the status bar. * `libXft`, `freetype2`, `fontconfig`: Used for the status bar.
Disabled via `HAVE_LIBFONTS=0`. Disabled via `HAVE_LIBFONTS=0`.
* `giflib`: Used for animated gif playback.
Disabled via `HAVE_LIBGIF=0`.
* `libexif`: Used for auto-orientation and exif thumbnails. * `libexif`: Used for auto-orientation and exif thumbnails.
Disable via `HAVE_LIBEXIF=0`. Disable via `HAVE_LIBEXIF=0`.
The following dependencies are only used if your imlib2 version is lower than
v1.8.0. If your imlib2 version is v1.8.0 (or above) then the following
dependencies are unused and won't be built (even if you enable it explicitly).
* `giflib`: Used for animated gif playback. Disabled via `HAVE_LIBGIF=0`.
* `libwebp`: Used for animated webp playback. * `libwebp`: Used for animated webp playback.
(***NOTE***: animated webp also requires Imlib2 v1.7.5 or above) (***NOTE***: animated webp also requires Imlib2 v1.7.5 or above)
Disabled via `HAVE_LIBWEBP=0`. Disabled via `HAVE_LIBWEBP=0`.