PG and projects getting undefined reference in Ubuntu 15.10

Hi,
After upgrading to g++ 5.2.1 on Ubuntu 15.10, I am getting a lot of errors similar to:

ofxAssimpModelLoader.cpp:(.text+0x6225): undefined reference to `ofLogVerbose::ofLogVerbose(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
ofxAssimpModelLoader.cpp:(.text+0x6364): undefined reference to `ofLogVerbose::ofLogVerbose(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
ofxAssimpModelLoader.cpp:(.text+0x6386): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x6395): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x63bd): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x63c7): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x67b6): undefined reference to `ofLogVerbose::ofLogVerbose(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
ofxAssimpModelLoader.cpp:(.text+0x67d8): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x67e7): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x6826): undefined reference to `ofLog::padding[abi:cxx11]'
ofxAssimpModelLoader.cpp:(.text+0x6830): undefined reference to `ofLog::padding[abi:cxx11]'

when compiling projects, any idea what is going on?

Dependencies are met…

Running compilePG.sh complains:

Linking bin/projectGeneratorSimple for linux64
g++ -o bin/projectGeneratorSimple  obj/linux64/Release/src/ofApp.o obj/linux64/Release/src/main.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxSliderGroup.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxLabel.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxGuiGroup.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxSlider.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxButton.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxPanel.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxToggle.o ../../../addons/obj/linux64/Release/ofxGui/src/ofxBaseGui.o ../../../addons/obj/linux64/Release/ofxXmlSettings/src/ofxXmlSettings.o ../../../addons/obj/linux64/Release/ofxXmlSettings/libs/tinyxmlerror.o ../../../addons/obj/linux64/Release/ofxXmlSettings/libs/tinyxmlparser.o ../../../addons/obj/linux64/Release/ofxXmlSettings/libs/tinyxml.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/utils/Utils.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/addons/ofAddon.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/projects/CBLinuxProject.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/projects/baseProject.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/projects/xcodeProject.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/projects/visualStudioProject.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/src/projects/CBWinProject.o ../../../addons/obj/linux64/Release/ofxProjectGenerator/libs/pugixml/src/pugixml.o ../../../libs/openFrameworksCompiled/lib/linux64/libopenFrameworks.a   -Wl,-rpath=./libs:./bin/libs -Wl,--as-needed -Wl,--gc-sections -L../../../libs/fmodex/lib/linux64/ -lfmodex ../../../libs/glfw/lib/linux64/libglfw3.a ../../../libs/kiss/lib/linux64/libkiss.a ../../../libs/poco/lib/linux64/libPocoDataSQLite.a ../../../libs/poco/lib/linux64/libPocoXML.a ../../../libs/poco/lib/linux64/libPocoJSON.a ../../../libs/poco/lib/linux64/libPocoUtil.a ../../../libs/poco/lib/linux64/libPocoNet.a ../../../libs/poco/lib/linux64/libPocoZip.a ../../../libs/poco/lib/linux64/libPocoCrypto.a ../../../libs/poco/lib/linux64/libPocoFoundation.a ../../../libs/poco/lib/linux64/libPocoData.a ../../../libs/poco/lib/linux64/libPocoMongoDB.a ../../../libs/poco/lib/linux64/libPocoNetSSL.a ../../../libs/tess2/lib/linux64/libtess2.a  ../../../libs/poco/lib/linux64/libPocoNetSSL.a ../../../libs/poco/lib/linux64/libPocoNet.a ../../../libs/poco/lib/linux64/libPocoCrypto.a ../../../libs/poco/lib/linux64/libPocoJSON.a ../../../libs/poco/lib/linux64/libPocoUtil.a ../../../libs/poco/lib/linux64/libPocoXML.a ../../../libs/poco/lib/linux64/libPocoFoundation.a  -L/usr/lib/x86_64-linux-gnu -lz -lgstapp-1.0 -lgstvideo-1.0 -lgstbase-1.0 -lgstreamer-1.0 -ludev -lfontconfig -lfreetype -lsndfile -lopenal -lssl -lcrypto -lpulse-simple -lpulse -lasound -lGLEW -lGLU -lGL -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lmpg123  -lglut -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -ldl -lpthread -lfreeimage -lrtaudio -lboost_filesystem -lboost_system
/usr/bin/ld: warning: libboost_system.so.1.55.0, needed by /usr/lib/x86_64-linux-gnu/libmirclient.so.8, may conflict with libboost_system.so.1.58.0
/usr/bin/ld: warning: libboost_filesystem.so.1.55.0, needed by /usr/lib/x86_64-linux-gnu/libmircommon.so.4, may conflict with libboost_filesystem.so.1.58.0
../../../addons/obj/linux64/Release/ofxProjectGenerator/src/utils/Utils.o: In function `getOFRelPath(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
Utils.cpp:(.text+0x115f): undefined reference to `Poco::Path::assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
Utils.cpp:(.text+0x118d): undefined reference to `Poco::Path::assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
Utils.cpp:(.text+0x11d9): undefined reference to `Poco::Path::toString[abi:cxx11]() const'
Utils.cpp:(.text+0x11eb): undefined reference to `Poco::Path::toString[abi:cxx11]() const'
Utils.cpp:(.text+0x129b): undefined reference to `Poco::Path::directory[abi:cxx11](int) const'
Utils.cpp:(.text+0x158b): undefined reference to `Poco::Path::directory[abi:cxx11](int) const'
Utils.cpp:(.text+0x159d): undefined reference to `Poco::Path::directory[abi:cxx11](int) const'

Relevant info:

└─ »»»  g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.2.1-12ubuntu2' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.2.1 20150729 (Ubuntu 5.2.1-12ubuntu2) 
└─ »»»  gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.2.1-12ubuntu2' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.2.1 20150729 (Ubuntu 5.2.1-12ubuntu2)