This is a dependency of lib/mingle, and transitively cmd/mingle. Note that this
is not available through Homebrew so we need to use MacPorts.
export PKG_CONFIG_PATH="/usr/local/opt/qt@5/lib/pkgconfig"
brew install libxaw || brew upgrade libxaw
+
+# install MacPorts for libANN
+curl --retry 3 --location --no-progress-meter -O \
+ https://github.com/macports/macports-base/releases/download/v2.7.2/MacPorts-2.7.2-12-Monterey.pkg
+sudo installer -package MacPorts-2.7.2-12-Monterey.pkg -target /
+export PATH=/opt/local/bin:${PATH}
+
+# lib/mingle dependency
+sudo port install libANN
export CPPFLAGS="-I/usr/local/opt/qt@5/include"
export PKG_CONFIG_PATH="/usr/local/opt/qt@5/lib/pkgconfig"
brew install libxaw || brew upgrade libxaw
+
+# install MacPorts for libANN
+curl --retry 3 --location --no-progress-meter -O \
+ https://github.com/macports/macports-base/releases/download/v2.7.2/MacPorts-2.7.2-12-Monterey.pkg
+sudo installer -package MacPorts-2.7.2-12-Monterey.pkg -target /
+export PATH=/opt/local/bin:${PATH}
+
+# lib/mingle dependency
+sudo port install libANN