Added CVPLOT_USE_CONAN, fixes #7

Author: wpalfi

CMakeLists.txt

@@ -7,11 +7,14 @@ project (cv-plot)
 option(BUILD_SHARED_LIBS "Build shared libs" ON)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
 
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup(TARGETS)
+option(CVPLOT_USE_CONAN "Use opencv from conan package manager" ON)
+if(CVPLOT_USE_CONAN)
+    include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+    conan_basic_setup(TARGETS)
 
-#dont use find_package(OpenCV)
-#(OpenCVConfig.cmake has some problems with conan package)
-set(OpenCV_LIBS CONAN_PKG::opencv)
+    #dont use find_package(OpenCV)
+    #(OpenCVConfig.cmake has some problems with conan package)
+    set(OpenCV_LIBS CONAN_PKG::opencv)
+endif()
 
 add_subdirectory(CvPlot)

doc/integration.md

@@ -21,6 +21,7 @@ This is the easiest way and should almost always work. Just be sure you have Ope
 - You may also build without Conan or add CvPlot to some project with add_subdirectory. In this case, use the CvPlot subdirectory, not the root CMakeLists.txt!
 - Variables
    - CVPLOT_HEADER_ONLY [default ON]
+   - CVPLOT_USE_CONAN [default ON] Turn off to use opencv from elsewhere
    - CVPLOT_WITH_TESTS [default ON]
    - CVPLOT_WITH_EXAMPLES [default ON]
    - [BUILD_SHARED_LIBS](https://cmake.org/cmake/help/latest/variable/BUILD_SHARED_LIBS.html)