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