Some warnings when updating graphviz (2.47.3-1 -> 2.48.0-1)

[pebcak]

Earlier today I had updates to several packages amongst which graphviz (2.47.3-1 → 2.48.0-1). I got the following warnings in the terminal output:

[2021-07-22T17:40:06+0200] [ALPM-SCRIPTLET] Warning: Could not load "/usr/lib/graphviz/libgvplugin_gdk.so.6" - It was found, so perhaps one of its dependents was not.  Try ldd.
[2021-07-22T17:40:06+0200] [ALPM-SCRIPTLET] Warning: Could not load "/usr/lib/graphviz/libgvplugin_gtk.so.6" - It was found, so perhaps one of its dependents was not.  Try ldd.
[2021-07-22T17:40:06+0200] [ALPM-SCRIPTLET] Warning: Could not load "/usr/lib/graphviz/libgvplugin_gdk.so.6" - It was found, so perhaps one of its dependents was not.  Try ldd.
[2021-07-22T17:40:06+0200] [ALPM-SCRIPTLET] Warning: Could not load "/usr/lib/graphviz/libgvplugin_gtk.so.6" - It was found, so perhaps one of its dependents was not.  Try ldd.

It says “Try ldd” but I am not sure exactly what to do. Has anyone else run into this?

[pebcak]

Running ldd /usr/lib/graphviz/libgvplugin_gtk.so.6 revealed that some shared library was missing, namely: libgtk-x11-2.0.so.0 that is provided by gtk2 package.
Issue resolved.

ldd /usr/lib/graphviz/libgvplugin_gtk.so.6

linux-vdso.so.1 (0x00007ffea914b000)
libgtk-x11-2.0.so.0 => not found
libgdk-x11-2.0.so.0 => not found
libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0x00007f278abff000)
libcairo.so.2 => /usr/lib/libcairo.so.2 (0x00007f278aae0000)
libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0x00007f278aa9a000)
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x00007f278aa40000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x00007f278a909000)
libc.so.6 => /usr/lib/libc.so.6 (0x00007f278a73d000)
libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007f278a71c000)
libm.so.6 => /usr/lib/libm.so.6 (0x00007f278a5d8000)
libz.so.1 => /usr/lib/libz.so.1 (0x00007f278a5be000)
libpng16.so.16 => /usr/lib/libpng16.so.16 (0x00007f278a587000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00007f278a536000)
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00007f278a462000)
libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f278a321000)
libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f278a30c000)
libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f278a2ff000)
libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f278a2d5000)
libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f278a2c3000)
libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0x00007f278a2be000)
libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0x00007f278a216000)
libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x00007f278a211000)
libgio-2.0.so.0 => /usr/lib/libgio-2.0.so.0 (0x00007f278a054000)
libjpeg.so.8 => /usr/lib/libjpeg.so.8 (0x00007f2789fca000)
libtiff.so.5 => /usr/lib/libtiff.so.5 (0x00007f2789f34000)
libffi.so.7 => /usr/lib/libffi.so.7 (0x00007f2789f28000)
libpcre.so.1 => /usr/lib/libpcre.so.1 (0x00007f2789eb1000)
/usr/lib64/ld-linux-x86-64.so.2 (0x00007f278ac4f000)
libexpat.so.1 => /usr/lib/libexpat.so.1 (0x00007f2789e81000)
libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0x00007f2789e6e000)
libharfbuzz.so.0 => /usr/lib/libharfbuzz.so.0 (0x00007f2789d97000)
libdl.so.2 => /usr/lib/libdl.so.2 (0x00007f2789d90000)
libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f2789d8b000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f2789d83000)
libmount.so.1 => /usr/lib/libmount.so.1 (0x00007f2789d23000)
libresolv.so.2 => /usr/lib/libresolv.so.2 (0x00007f2789d07000)
libzstd.so.1 => /usr/lib/libzstd.so.1 (0x00007f2789bf8000)
liblzma.so.5 => /usr/lib/liblzma.so.5 (0x00007f2789bd0000)
libgraphite2.so.3 => /usr/lib/libgraphite2.so.3 (0x00007f2789bab000)
libblkid.so.1 => /usr/lib/libblkid.so.1 (0x00007f2789b55000)
librt.so.1 => /usr/lib/librt.so.1 (0x00007f2789b48000)