Upgrading pothosaudio 0.3.0 to 0.3.1 fails

[daveio]

==> Upgrading 1 outdated package, with result:
pothosware/pothos/pothosaudio 0.3.0 -> 0.3.1
==> Upgrading pothosware/pothos/pothosaudio
==> Downloading https://github.com/pothosware/PothosAudio/archive/pothos-audio-0.3.1.tar.gz
Already downloaded: /Users/dave/Library/Caches/Homebrew/pothosaudio-0.3.1.tar.gz
==> cmake .. -DCMAKE_C_FLAGS_RELEASE=-DNDEBUG -DCMAKE_CXX_FLAGS_RELEASE=-DNDEBUG -DCMAKE_INSTALL_PREFIX=/usr/local/Cellar/pothosaudio/0.3.1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_FIND_FRAMEWORK=LAST -DCMAKE_VERBOSE_MAKEFILE=ON -Wno-dev
Last 15 lines from /Users/dave/Library/Logs/Homebrew/pothosaudio/01.cmake:
-- Poco_VERSION: 1.9.0
-- Poco_INCLUDE_DIRS:
-- Poco_LIBRARIES: Poco::Foundation;Poco::Util;Poco::XML;Poco::Net
dyld: Library not loaded: /usr/local/opt/poco/lib/libPocoUtil.51.dylib
  Referenced from: /usr/local/bin/PothosUtil
  Reason: image not found
/tmp/pothosaudio-20180414-22386-uty1ex/PothosAudio-pothos-audio-0.3.1/build/PothosUtil.sh: line 4: 22485 Abort trap: 6           "/usr/local/bin/PothosUtil" $@
CMake Error at /usr/local/share/cmake/Pothos/PothosConfig.cmake:188 (message):
  PothosUtil execution test failed
Call Stack (most recent call first):
  CMakeLists.txt:8 (find_package)

[guruofquality]

I dont think its the recipe. Brew seems to deal poorly with rebuilding when a dependency changes (I think poco had a breaking ABI update and things need a rebuild).

I would just purge the pothos* stuff brew uninstall --ignore-dependencies --force soapysdr pothos; brew missing | cut -f1 -d: | xargs brew remove --force and reinstall poco, and whatever pothos libs again.

[daveio]

Your diagnosis (or at a minimum, your proposed workaround) worked perfectly. I'm unfamiliar with poco so didn't really know where to go with it. Thanks!

[metayan]

This issue has been appearing again for a while now. This time with pothoswidgets.
Solved it with

brew reinstall pothos

this time.

The correct solution would probably be for the maintainers to do something like

brew bump-revision -m "due to poco upgrade" $(brew uses poco)

every time they notice that poco has been upgraded.
Done in #51 now.