Usage with your build system

Table of Contents

• How do I use Log4cxx with CMake?
• How do I use Log4cxx with CMake and pkg-config?
• How do I use Log4cxx with QMake?
• How do I use Log4cxx with plain Make?

The following code snippets show how to use Log4cxx with various different buildsystems.

Note that we are unable to provide support for all buildsystems that you may be using.

CMake is fully supported for building, as well as any buildsystem that can use pkgconfig in order to find packages. When using pkgconfig, the package name is liblog4cxx.

How do I use Log4cxx with CMake?

Add the following to your CMakeLists.txt file:

find_package(log4cxx)
 
... other buildsystem information here ...
 
target_link_libraries( executable PRIVATE log4cxx )

How do I use Log4cxx with CMake and pkg-config?

Add the following to your CMakeLists.txt file:

find_package(PkgConfig)
pkg_check_modules(log4cxx REQUIRED liblog4cxx)
 
... other buildsystem information here ...
 
target_link_libraries( executable PRIVATE ${log4cxx_LIBRARIES} )
target_include_directories( executable PRIVATE ${log4cxx_INCLUDE_DIRS} )

How do I use Log4cxx with QMake?

Add the following to your .pro file:

CONFIG += link_pkgconfig
 
PKGCONFIG += liblog4cxx

How do I use Log4cxx with plain Make?

You probably don't want to do this - it is highly recommended to use a proper buildsystem. However, the following minimal Makefile will build and link an application:

CXXFLAGS += $(shell pkg-config --cflags liblog4cxx)
LDFLAGS += $(shell pkg-config --libs liblog4cxx)
 
all: main.o
        $(CXX) -o application main.o $(LDFLAGS)