make conex work

CMakeLists.txt

@@ -136,6 +136,22 @@ else (WITH_PYTHIA8)
   find_package (Pythia8) # if not found here, will automatically pick ThirdParty version 
 endif (WITH_PYTHIA8)
 
+# check for CxRoot/CONEX: either use ThirdParty/cxroot or system-level installation
+message ("***** Configuring CxRoot/CONEX version")
+if (WITH_CONEX)
+  string (TOLOWER ${WITH_CONEX} WITH_CONEX_LOWER)
+  if ("x_${WITH_CONEX_LOWER}" STREQUAL "x_c8")
+    message ("Use CONEX from ThirdParty folder")
+  else ()
+    message ("Searching CxRoot/CONEX installed at location ${WITH_CONEX}")
+    set (CONEX_DIR ${WITH_CONEX})
+    find_package (CONEX REQUIRED) 
+  endif ()
+else (WITH_CONEX)
+  message ("Searching CxRoot/CONEX installed at system-level")
+  find_package (CONEX) # if not found here, will automatically pick ThirdParty version 
+endif (WITH_CONEX)
+
 # check for Eigen3: either use ThirdParty/eigen3 or system-level installation
 message ("***** Configuring eigen3 version")
 if (WITH_EIGEN3)

Processes/CMakeLists.txt

@@ -8,6 +8,9 @@ add_subdirectory (QGSJetII)
 if (Pythia8_FOUND)
   add_subdirectory (Pythia)
 endif (Pythia8_FOUND)
+if (CONEX_FOUND)
+  add_subdirectory (CONEX)
+endif (CONEX_FOUND)
 add_subdirectory (HadronicElasticModel)
 add_subdirectory (UrQMD)
 

Processes/Pythia/CMakeLists.txt

@@ -50,13 +50,6 @@ target_include_directories (
   $<INSTALL_INTERFACE:include/include>
   )
 
-target_include_directories (
-  ProcessPythia8
-  SYSTEM
-  PUBLIC ${PYTHIA8_INCLUDE_DIR}
-  INTERFACE ${PYTHIA8_INCLUDE_DIR}
-  )
-
 install (
   TARGETS ProcessPythia8
   LIBRARY DESTINATION lib

ThirdParty/CMakeLists.txt

@@ -160,3 +160,58 @@ else (NOT Pythia8_FOUND)
   
 endif (NOT Pythia8_FOUND)
 
+
+
+# CONEX/CXROOT
+
+add_library (CORSIKAconex STATIC IMPORTED GLOBAL)
+if (NOT CONEX_FOUND)
+  message ("Building ThirdParty/cxroot is obtained via git and compiled")
+  message ("This will take a bit.....")
+  ExternalProject_Add (cxroot
+    GIT_REPOSITORY https://gitlab.ikp.kit.edu/AirShowerPhysics/cxroot.git
+    GIT_TAG origin/master
+    GIT_SHALLOW 1
+    GIT_PROGRESS 1
+    SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/cxroot/source
+    INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/cxroot/source
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND make CX_NO_ROOT=1 all
+    INSTALL_COMMAND ""
+    BUILD_IN_SOURCE ON
+    EXCLUDE_FROM_ALL TRUE
+    )
+  set (HAVE_CONEX 1 CACHE BOOL "presence of conex, via external-project-add in ThirdParty folder")
+  set (CONEX_FOUND 1 PARENT_SCOPE)
+  ExternalProject_Get_Property (cxroot INSTALL_DIR)
+  set (CONEX_PREFIX ${INSTALL_DIR})
+  set (CONEX_INCLUDE_DIR  ${CONEX_PREFIX}/src)
+  set (CONEX_INCLUDE_DIR  ${CONEX_PREFIX}/src PARENT_SCOPE)
+  add_dependencies (CORSIKAconex cxroot)
+
+  # create include directory at config time
+  file (MAKE_DIRECTORY ${CONEX_INCLUDE_DIR})
+
+  set (CONEX_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/share/externals/cxroot)
+  install (DIRECTORY ${INSTALL_DIR}/ DESTINATION ${CONEX_INSTALL_DIR})
+
+  set_target_properties (
+    CORSIKAconex PROPERTIES
+    IMPORTED_LOCATION ${CONEX_PREFIX}/lib/Linux/libCONEXdynamic.a
+    IMPORTED_LINK_INTERFACE_LIBRARIES dl
+    INTERFACE_INCLUDE_DIRECTORIES
+     $<BUILD_INTERFACE:${CONEX_INCLUDE_DIR}>    
+    )
+  
+else (NOT CONEX_FOUND)
+
+  message ("Using system-level CONEX version at ${CXROOT_INCLUDE_DIR}")
+  set_target_properties (
+    CORSIKAconex PROPERTIES
+    IMPORTED_LOCATION ${CONEX_PREFIX}/lib/${CMAKE_SYSTEM_NAME}/libCONEXdynamic.a
+    IMPORTED_LINK_INTERFACE_LIBRARIES dl
+    INTERFACE_INCLUDE_DIRECTORIES ${CONEX_INCLUDE_DIR}
+    )
+  
+endif (NOT CONEX_FOUND)
+