From 80867c6fd61f3d3788696023271cfab151a5259e Mon Sep 17 00:00:00 2001
From: mmichaux <michael.michaux@oca.eu>
Date: Wed, 15 May 2019 15:50:49 +0200
Subject: [PATCH] Macro to simplify including and linking a target to CLASS
 submodule.

---
 external/class.cmake | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/external/class.cmake b/external/class.cmake
index c0002f4..6e7acdd 100644
--- a/external/class.cmake
+++ b/external/class.cmake
@@ -7,6 +7,8 @@ else()
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
 endif()
 
+set(CLASS_INCLUDE_DIR ${CMAKE_CURRENT_LIST_DIR}/class/include)
+
 # list of object files generated by class
 set(CLASS_OBJECT_FILES
   ${CMAKE_CURRENT_LIST_DIR}/class/build/arrays.o
@@ -54,11 +56,17 @@ add_library(class_cpp
 target_include_directories(class_cpp
   PRIVATE ${CMAKE_CURRENT_LIST_DIR}/class/include)
 
+# macro to setup include dir and link libraries for target using class
+macro(target_setup_class target_name)
+  target_include_directories(${target_name}
+    PRIVATE ${CLASS_INCLUDE_DIR})
+  target_link_libraries(${target_name} ${CLASS_OBJECT_FILES})
+  target_link_libraries(${target_name} class_cpp)
+  add_dependencies(${target_name} class_objects)
+endmacro(target_setup_class)
+
+
 # test executable
 add_executable(testTk
   ${CMAKE_CURRENT_LIST_DIR}/class/cpp/testTk.cc)
-target_include_directories(testTk
-  PRIVATE ${CMAKE_CURRENT_LIST_DIR}/class/include)
-target_link_libraries(testTk ${CLASS_OBJECT_FILES})
-target_link_libraries(testTk class_cpp)
-add_dependencies(testTk class_objects)
\ No newline at end of file
+target_setup_class(testTk)
\ No newline at end of file