seg fault

[pnf]

Hi -
The gqrx that I build with this tap segfaults.

Below are the stack traces and brew install log.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libboost_filesystem-mt.dylib    0x000000010f3e985b boost::filesystem::detail::status(boost::filesystem::path const&, boost::system::error_code*) + 27
1   libgnuradio-runtime.3.7.8.1.dylib   0x000000010e252b5a gr::prefs::_sys_prefs_filenames() + 92
2   libgnuradio-runtime.3.7.8.1.dylib   0x000000010e2529fe gr::prefs::prefs() + 84
3   libgnuradio-runtime.3.7.8.1.dylib   0x000000010e252922 gr::prefs::singleton() + 44
4   libgnuradio-audio.3.7.8.1.dylib 0x000000010dc38004 gr::audio::default_arch_name() + 21
5   libgnuradio-audio.3.7.8.1.dylib 0x000000010dc3817e gr::audio::sink::make(int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, bool) + 186
6   com.yourcompany.Gqrx            0x000000010da273a5 receiver::receiver(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) + 1141
7   com.yourcompany.Gqrx            0x000000010da1c207 MainWindow::MainWindow(QString, bool, QWidget*) + 931
8   com.yourcompany.Gqrx            0x000000010da1902f main + 3747
9   com.yourcompany.Gqrx            0x000000010da18184 start + 52

==> Installing gqrx from godber/godber
==> Installing dependencies for godber/godber/gqrx: libpng, pkg-config, wxmac, g
==> Installing godber/godber/gqrx dependency: libpng
==> Downloading https://homebrew.bintray.com/bottles/libpng-1.6.20.el_capitan.bottle.ta
Already downloaded: /Library/Caches/Homebrew/libpng-1.6.20.el_capitan.bottle.tar.gz
==> Pouring libpng-1.6.20.el_capitan.bottle.tar.gz
🍺  /usr/local/Cellar/libpng/1.6.20: 17 files, 1.2M
==> Installing godber/godber/gqrx dependency: pkg-config
==> Downloading https://homebrew.bintray.com/bottles/pkg-config-0.29.el_capitan.bottle.
Already downloaded: /Library/Caches/Homebrew/pkg-config-0.29.el_capitan.bottle.tar.gz
==> Pouring pkg-config-0.29.el_capitan.bottle.tar.gz
🍺  /usr/local/Cellar/pkg-config/0.29: 10 files, 624.4K
==> Installing godber/godber/gqrx dependency: wxmac
==> Downloading https://homebrew.bintray.com/bottles/wxmac-3.0.2_2.el_capitan.bottle.ta
Already downloaded: /Library/Caches/Homebrew/wxmac-3.0.2_2.el_capitan.bottle.tar.gz
==> Pouring wxmac-3.0.2_2.el_capitan.bottle.tar.gz
🍺  /usr/local/Cellar/wxmac/3.0.2_2: 778 files, 23.7M
==> Installing godber/godber/gqrx dependency: gnuradio
==> Downloading https://homebrew.bintray.com/bottles/gnuradio-3.7.8.1.el_capitan.bottle
Already downloaded: /Library/Caches/Homebrew/gnuradio-3.7.8.1.el_capitan.bottle.tar.gz
==> Pouring gnuradio-3.7.8.1.el_capitan.bottle.tar.gz
🍺  /usr/local/Cellar/gnuradio/3.7.8.1: 3,207 files, 121.5M
==> Installing godber/godber/gqrx dependency: hackrf
==> Downloading https://github.com/mossmann/hackrf/archive/v2015.07.2.tar.gz
Already downloaded: /Library/Caches/Homebrew/hackrf-2015.07.2.tar.gz
==> cmake . -DCMAKE_C_FLAGS_RELEASE=-DNDEBUG -DCMAKE_CXX_FLAGS_RELEASE=-DNDEBUG -DCMAKE
==> make install
🍺  /usr/local/Cellar/hackrf/2015.07.2: 14 files, 179.2K, built in 5 seconds
==> Installing godber/godber/gqrx dependency: gnuradio-osmosdr
==> Downloading http://cgit.osmocom.org/gr-osmosdr/snapshot/gr-osmosdr-0.1.4.zip
Already downloaded: /Library/Caches/Homebrew/gnuradio-osmosdr-0.1.4.zip
==> Downloading https://pypi.python.org/packages/source/M/Markdown/Markdown-2.4.tar.gz
Already downloaded: /Library/Caches/Homebrew/gnuradio-osmosdr--Markdown-2.4.tar.gz
==> python -c import setuptools... --no-user-cfg install --prefix=/usr/local/Cellar/gnu
==> Downloading https://pypi.python.org/packages/source/C/Cheetah/Cheetah-2.4.4.tar.gz
Already downloaded: /Library/Caches/Homebrew/gnuradio-osmosdr--Cheetah-2.4.4.tar.gz
==> python -c import setuptools... --no-user-cfg install --prefix=/usr/local/Cellar/gnu
==> cmake .. -DCMAKE_C_FLAGS_RELEASE=-DNDEBUG -DCMAKE_CXX_FLAGS_RELEASE=-DNDEBUG -DCMAK
==> make
==> make install
🍺  /usr/local/Cellar/gnuradio-osmosdr/0.1.4: 216 files, 3.6M, built in 34 seconds
==> Installing godber/godber/gqrx
==> Downloading https://github.com/csete/gqrx/archive/v2.3.2.zip
Already downloaded: /Library/Caches/Homebrew/gqrx-2.3.2.zip
==> qmake PREFIX=/usr/local/Cellar/gqrx/2.3.2
==> make
==> make install
==> Caveats
.app bundles were installed.
Run `brew linkapps gqrx` to symlink these to /Applications.
==> Summary
🍺  /usr/local/Cellar/gqrx/2.3.2: 9 files, 2M, built in 33 seconds