I see that some packages, like mail/faces and x11/xview-lib, run ldconfig
at install (and uninstall).

The Packages.txt mentions about using libtool for doing this.

And I see the do-shlib-handling target does:
${ECHO} "@exec ${LDCONFIG}" >> ${PLIST};

Is this documented somewhere?

I have
 PKG_DEVELOPER=         yes
so check-shlibs target complained about gcc3 and my XFree86 installs.

For example:

$ /usr/sbin/pkg_info -qL gcc | grep -h '/lib/lib.*.o' | xargs ldd
2>/dev/null |
egrep ':|not found' | egrep -B1 'not found'
/usr/gcc-3.2.1/lib/libgcj.so:
        libgcc_s.so.1 => not found
/usr/gcc-3.2.1/lib/libgcj.so.3:
        libgcc_s.so.1 => not found
/usr/gcc-3.2.1/lib/libgcj.so.3.0.0:
        libgcc_s.so.1 => not found
-- 
/usr/gcc-3.2.1/lib/libstdc++.so:
        libgcc_s.so.1 => not found
/usr/gcc-3.2.1/lib/libstdc++.so.5:
        libgcc_s.so.1 => not found
/usr/gcc-3.2.1/lib/libstdc++.so.5.0.1:
        libgcc_s.so.1 => not found

And with my x11/XFree86:

/usr/X11R6/bin/bdftopcf:        libXfont.so.1 => not found
/usr/X11R6/bin/mkfontdir:       libXfont.so.1 => not found
/usr/X11R6/bin/x11perf:         libfreetype.so.6 => not found
        libfreetype.so.6 => not found
/usr/X11R6/bin/xditview:        libfreetype.so.6 => not found
        libfreetype.so.6 => not found
/usr/X11R6/bin/xfs:     libXfont.so.1 => not found
... and more ...

And xterm couldn't run because of libfreetype.so.6 => not found.

I was able to fix the above simply by running ldconfig.

But how do I get pkgsrc to automate this for me?

Thanks,

   Jeremy C. Reed
   http://bsd.reedmedia.net/