That dep was already removed upstream, only docs were not updated.
*** Bug 377677 has been marked as a duplicate of this bug. ***
Looks like the source tree has some outdated file, like what is that sysfs_LIBS still doing in Makefile.am?
Anyway, it's not used, so dependency dropped and closing
+ 04 Aug 2011; Samuli Suominen <email@example.com> cdemud-1.3.0.ebuild:
+ Remove unnecessary sys-fs/sysfsutils depend wrt #347215 by Rafał Mużyło.
$ grep -r sysfs *
debian/control: libsysfs-dev, libglib2.0-dev, libao-dev (>= 0.8.0), libmirage3-dev (>= 1.3.0),
README: - libsysfs
src/cdemud-device.c: sysfs dir :/ */
src/cdemud-device.c: gchar *sysfs_dev_path = g_strdup_printf("/sys/bus/scsi/devices/%i:%i:%i:%i", id, id, id, id);
src/cdemud-device.c: GDir *dir_dev = g_dir_open(sysfs_dev_path, 0, NULL);
src/cdemud-device.c: CDEMUD_DEBUG(self, DAEMON_DEBUG_WARNING, "%s: sysfs device for device #%i (%s) could not be opened; device mapping info for this device will not be available\n", __debug__, _priv->number, sysfs_dev_path);
src/cdemud-device.c: /* Iterate through sysfs dir */
src/cdemud-device.c: gchar *dirpath = g_build_filename(sysfs_dev_path, entry_name, NULL);
src/cdemud-device.c: gchar *symlink = g_build_filename(sysfs_dev_path, entry_name, NULL);
Well, the original patch removing the dep (http://cdemu.svn.sourceforge.net/viewvc/cdemu?view=revision&revision=641) only touched the code and configure.ac - I've simply missed it back then (the upstream patch was based on the one I've sent).
Actually, src/Makefile.am is still unfixed in upstream svn in that regard, but without configure.ac bit it doesn't really matter.