[libcamera-devel] [SimpleCam PATCH] cmake: Provide a sample CMakeLists.txt

[Kieran Bingham]

While libcamera uses meson as its build infrastructure, applications are
free to use other make systems. CMake is widely used, so add an example
CMakeLists.txt to support building simple-cam and linking against
libcamera using cmake.

Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
---
 CMakeLists.txt | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 000000000000..fc8e734bdf59
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,32 @@
+cmake_minimum_required(VERSION 3.6)
+
+project(SimpleCam
+	VERSION 1.0
+	DESCRIPTION "A small and documented example application for libcamera"
+	LANGUAGES CXX)
+
+#set (CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set (CMAKE_CXX_STANDARD 17)
+
+find_package(PkgConfig)
+
+pkg_check_modules(LIBCAMERA REQUIRED IMPORTED_TARGET libcamera)
+message(STATUS "libcamera library found:")
+message(STATUS "    version: ${LIBCAMERA_VERSION}")
+message(STATUS "    libraries: ${LIBCAMERA_LINK_LIBRARIES}")
+message(STATUS "    include path: ${LIBCAMERA_INCLUDE_DIRS}")
+
+# libevent is used specifically by simple-cam as it's event loop.
+# Applications may use a different event handling implementation.
+pkg_check_modules(LIBEVENT REQUIRED IMPORTED_TARGET libevent_pthreads)
+message(STATUS "libevent_pthreads library found:")
+message(STATUS "    version: ${LIBEVENT_VERSION}")
+message(STATUS "    libraries: ${LIBEVENT_LINK_LIBRARIES}")
+message(STATUS "    include path: ${LIBEVENT_INCLUDE_DIRS}")
+
+include_directories(${CMAKE_SOURCE_DIR} ${LIBCAMERA_INCLUDE_DIRS} ${LIBEVENT_INCLUDE_DIRS})
+
+add_executable(simple-cam simple-cam.cpp event_loop.cpp)
+
+target_link_libraries(simple-cam PkgConfig::LIBEVENT)
+target_link_libraries(simple-cam PkgConfig::LIBCAMERA)
-- 
2.34.1