我正在将$ git clone https://anongit.freedesktop.org/git/poppler/poppler.git pdf前端库用于演示PDF阅读器应用程序，并且我已经完成以下步骤来构建和安装poppler：
1. $ cd poppler && mkdir build && cd build
2. $ cmake -DCMAKE_INSTALL_LIBDIR="~/devinstall/poppler" -DENABLE_XPDF_HEADERS=ON -DCMAKE_INSTALL_PREFIX=~/devinstall/poppler ..
3. $ make -j8 && make install
4. ~/devinstall/poppler
poppler安装在$ mkdir demoApp && cd demoApp上，现在我创建了一个目录CMakeLists.txt，将在其中写入我的main.cpp和$ vim main.cpp //written code for the demo app that will use poppler library to open a PDF document and show annotations on it源文件：
1. $ vim CMakeLists.txt
2. CMakeLists.txt
这是我的cmake_minimum_required(VERSION 2.8.12)
project(demoApp)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC ON)
include(KDEInstallDirs)
include(KDECMakeSettings)
include(KDECompilerSettings)
include(FeatureSummary)
find_package(Qt5Core)
find_package(Qt5Gui)
find_package(Qt5Widgets)
find_package(KF5 5.2 REQUIRED COMPONENTS TextWidgets)
# On Ubuntu: apt-get install extra-cmake-modules
# It includes /usr/share/ECM/find-modules/FindPoppler.cmake
find_package(ECM REQUIRED NO_MODULE)
set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_MODULE_PATH})
# Point CMake to the pkgconfig files (*.pc) of our local poppler installation
# Assumption: Poppler was configured like
# $ cmake -DCMAKE_INSTALL_LIBDIR="~/devinstall/poppler" -DENABLE_XPDF_HEADERS=ON [...]
set(ENV{PKG_CONFIG_PATH} "$ENV{HOME}/devinstall/poppler/lib/pkgconfig")
find_package(PkgConfig REQUIRED)
find_package(Poppler REQUIRED Qt5)
add_executable(demoApp main.cpp)
target_include_directories(demoApp PRIVATE ${Poppler_INCLUDE_DIRS})
target_link_libraries(demoApp Qt5::Core Qt5::Gui Qt5::Widgets Poppler::Qt5 KF5::TextWidgets)
文件：
$ mkdir build && cd build$ cmake .. && make -j8 $ ./demoApp {"marker":[{"@attributes":{"start":"Im Berge",
"finish":"Eichelberger Stra\u00dfe"
...
demoApp成功运行，但是克隆poppler之后注释的字体颜色中包含的更改不会反映出来。我认为它正在使用Ubuntu安装poppler库。如何使demoApp使用本地修改的poppler而不是已安装的poppler？