Generate executable a.out from cpp mentioned in .pro file in yocto build

I am using yocto build. I have .pro files and recipes(.bb) which build all cpp files present in .pro file. Recently I added two new cpp file i.e. gtest_main.cpp and lgeplugin_Test.cpp in .pro file. As show below

lgeplugin.pro

QMAKE_CXXFLAGS += -g
QMAKE_CFLAGS += -g
CFLAGS += \
           -Wall \
          -Wextra \
          -fPIC \
          -std=c++11



TARGET = lgeplugin
TEMPLATE = lib

message(Building)

INCLUDEPATH += ${Root}/include/ALL \
               ${Root}/include/gtest \

 DEFINES += USE_LGE_TREE
 SOURCES += ../../src/lgeplugin.cpp

 contains(DEFINES, LGE_PLUGIN) {
   
SOURCES     += \
                ../../src/internalclient.cpp \
                ../../src/Event.cpp \
                ../../src/gtest_main.cpp \
                ../../src/lgeplugin_Test.cpp
LIBS += -lLGEFramework -lgtest
    } 

lgeplugin.bb

QMAKE_PROFILES = "${S}/lgeplugin.pro"
do_install() {
        install -d ${D}/usr/lib
        cp -a ${B}/liblgeplugin.so* ${D}/usr/lib
}

Requirement : I need executable(a.out) of the newly added file i.e. gtest_main.cpp and lgeplugin_Test.cpp