cppunit can't find c++11 libs

Question

I have written a program that I need to compile for raspberry-pi3 and it must be use bitbake for compilation.

All was ok when I wrote C code; and i didn't use a dynamic library.

If relevant, I need to use cppunit. I already added it in my rpi-basic-image and added:

    DEPENDS = "cppunit".

my make file

    CXX = arm-linux-gnueabi-g++
    INCLUDES= -I./
    CXXFLAGS = -g $(INCLUDES)
    SRCM= CBasicMath.cpp
    OBJM = $(SRCM:.cpp=.o)
    LINKFLAGS= -lcppunit
    testbasicmath: TestBasicMath.cpp $(OBJM)
        $(CXX) $(CXXFLAGS) -o $@ TestBasicMath.cpp $(OBJM) $(LINKFLAGS) $(LINKFLAGSLOG4) $(LIBLOG)
    # Default compile
    .cpp.o:
        $(CXX) $(CXXFLAGS) -c $< -o $@
    install:
        $(INSTALL) -m 755 testbasicmath ${sbindir}/testbasicmath; 
    clean:
        rm -f *.o *.xml testbasicmath

cppunit can't be found c++11 libs

/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/lib/../lib/libcppunit.so: undefined reference to `std::invalid_argument::invalid_argument(std::__cxx11::basic_string, std::allocator > const&)@GLIBCXX_3.4.21'

$ arm-linux-gnueabi-g++ -v

Thread model: posix
gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-12ubuntu1) 

Answer 1

Yocto already export some variables like CXXFLAGS, so you shouldn't override it in your Makefile.