nixpkgs/pkgs/development/libraries/gdk-pixbuf/setup-hook.sh

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findGdkPixbufLoaders() {
# choose the longest loaders.cache
local loadersCache="$1/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache"
if [ -f "$loadersCache" ]; then
if [ -f "$GDK_PIXBUF_MODULE_FILE" ]; then
if [ $(cat "$loadersCache"|wc -l) -gt $(cat "$GDK_PIXBUF_MODULE_FILE"|wc -l) ]; then
export GDK_PIXBUF_MODULE_FILE="$loadersCache"
fi
else
export GDK_PIXBUF_MODULE_FILE="$loadersCache"
fi
fi
}
envHooks+=(findGdkPixbufLoaders)