[MacPorts] #57505: sane-backends @1.0.27_2: Regression / libusb vs libusb-compat library linkage

[MacPorts]

#57505: sane-backends @1.0.27_2: Regression / libusb vs libusb-compat library
linkage
----------------------------+--------------------
  Reporter:  sheesupport    |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.5.4
Resolution:                 |   Keywords:
      Port:  sane-backends  |
----------------------------+--------------------

Comment (by sheesupport):

 Thanks for the hint. I see that the compat lib is linked against libusb.

 While @1.0.24_0 was used on the system right before, I rebuild @1.0.27_0
 and @1.0.27_2. The latter also with and without explicit --with-usb.

 The funny thing starts now. From all builds the "scanimage -L" shows the
 scanner. This stands in contrary to my experience before. So, what was
 going on.

 The scanner was the whole time connected and by that means in some way
 "initialized". Unplugging and plugging the usb scanner shows that it
 gets no more recognized by @1.0.27. Soft/Cold-Reboots didn't help.

 Switching to @1.0.24_0 back shows the scanner again and unplugging and
 plugging keeps the scanner still available.

 So, could the problem be a missing rescan of the usb bus?

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Ticket URL: <https://trac.macports.org/ticket/57505#comment:2>
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