From 1a0550301b3d0bb9b49f3f20d043d1822706a0c7 Mon Sep 17 00:00:00 2001
From: wang_x1 <xiaoqiang.wang@psi.ch>
Date: Thu, 1 Sep 2016 11:13:27 +0200
Subject: [PATCH] cmake config file from ROOT with compatibility fixes

---
 cmake/FindROOT.cmake | 161 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 cmake/FindROOT.cmake

diff --git a/cmake/FindROOT.cmake b/cmake/FindROOT.cmake
new file mode 100644
index 000000000..187d2c90c
--- /dev/null
+++ b/cmake/FindROOT.cmake
@@ -0,0 +1,161 @@
+# - Finds ROOT instalation
+# This module sets up ROOT information 
+# It defines:
+# ROOT_FOUND          If the ROOT is found
+# ROOT_INCLUDE_DIR    PATH to the include directory
+# ROOT_LIBRARIES      Most common libraries
+# ROOT_LIBRARY_DIR    PATH to the library directory 
+
+
+find_program(ROOT_CONFIG_EXECUTABLE root-config
+  PATHS $ENV{ROOTSYS}/bin)
+
+if(NOT ROOT_CONFIG_EXECUTABLE)
+  set(ROOT_FOUND FALSE)
+else()    
+  set(ROOT_FOUND TRUE)
+
+  execute_process(
+    COMMAND ${ROOT_CONFIG_EXECUTABLE} --prefix 
+    OUTPUT_VARIABLE ROOTSYS 
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process(
+    COMMAND ${ROOT_CONFIG_EXECUTABLE} --version 
+    OUTPUT_VARIABLE ROOT_VERSION
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process(
+    COMMAND ${ROOT_CONFIG_EXECUTABLE} --incdir
+    OUTPUT_VARIABLE ROOT_INCLUDE_DIR
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process(
+    COMMAND ${ROOT_CONFIG_EXECUTABLE} --libs
+    OUTPUT_VARIABLE ROOT_LIBRARIES
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  set(ROOT_LIBRARIES ${ROOT_LIBRARIES} -lThread -lMinuit -lHtml -lVMC -lEG -lGeom -lTreePlayer -lXMLIO -lProof)
+  set(ROOT_LIBRARIES ${ROOT_LIBRARIES} -lProofPlayer -lMLP -lSpectrum -lEve -lRGL -lGed -lXMLParser -lPhysics)
+  set(ROOT_LIBRARY_DIR ${ROOTSYS}/lib)
+
+  # Make variables changeble to the advanced user
+  mark_as_advanced(ROOT_CONFIG_EXECUTABLE)
+
+  if(NOT ROOT_FIND_QUIETLY)
+    message(STATUS "Found ROOT ${ROOT_VERSION} in ${ROOTSYS}")
+  endif()
+endif()
+
+
+include(CMakeParseArguments)
+find_program(ROOTCINT_EXECUTABLE rootcint PATHS $ENV{ROOTSYS}/bin)
+find_program(GENREFLEX_EXECUTABLE genreflex PATHS $ENV{ROOTSYS}/bin)
+find_package(GCCXML)
+
+#----------------------------------------------------------------------------
+# function ROOT_GENERATE_DICTIONARY( dictionary   
+#                                    header1 header2 ... 
+#                                    LINKDEF linkdef1 ... 
+#                                    OPTIONS opt1...)
+function(ROOT_GENERATE_DICTIONARY dictionary)
+  CMAKE_PARSE_ARGUMENTS(ARG "" "" "LINKDEF;OPTIONS" "" ${ARGN})
+  #---Get the list of header files-------------------------
+  set(headerfiles)
+  foreach(fp ${ARG_UNPARSED_ARGUMENTS})
+    file(GLOB files ${fp})
+    if(files)
+      foreach(f ${files})
+        if(NOT f MATCHES LinkDef)
+          set(headerfiles ${headerfiles} ${f})
+        endif()
+      endforeach()
+    else()
+      set(headerfiles ${headerfiles} ${fp})
+    endif()
+  endforeach()
+  #---Get the list of include directories------------------
+  get_directory_property(incdirs INCLUDE_DIRECTORIES)
+  set(includedirs) 
+  foreach( d ${incdirs})    
+   set(includedirs ${includedirs} -I${d})
+  endforeach()
+  #---Get LinkDef.h file------------------------------------
+  set(linkdefs)
+  foreach( f ${ARG_LINKDEF})
+    if( IS_ABSOLUTE ${f})
+      set(linkdefs ${linkdefs} ${f})
+    else() 
+      if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/inc/${f})
+        set(linkdefs ${linkdefs} ${CMAKE_CURRENT_SOURCE_DIR}/inc/${f})
+      else()
+        set(linkdefs ${linkdefs} ${CMAKE_CURRENT_SOURCE_DIR}/${f})
+      endif()
+    endif()
+  endforeach()
+  #---call rootcint------------------------------------------
+  add_custom_command(OUTPUT ${dictionary}.cxx ${dictionary}.h
+                     COMMAND ${ROOTCINT_EXECUTABLE} -cint -f  ${dictionary}.cxx 
+                                          -c ${ARG_OPTIONS} ${includedirs} ${headerfiles} ${linkdefs} 
+                     DEPENDS ${headerfiles} ${linkdefs})
+endfunction()
+
+#----------------------------------------------------------------------------
+# function REFLEX_GENERATE_DICTIONARY(dictionary   
+#                                     header1 header2 ... 
+#                                     SELECTION selectionfile ... 
+#                                     OPTIONS opt1...)
+function(REFLEX_GENERATE_DICTIONARY dictionary)  
+  CMAKE_PARSE_ARGUMENTS(ARG "" "" "SELECTION;OPTIONS" "" ${ARGN})
+  #---Get the list of header files-------------------------
+  set(headerfiles)
+  foreach(fp ${ARG_UNPARSED_ARGUMENTS})
+    file(GLOB files ${fp})
+    if(files)
+      foreach(f ${files})
+        set(headerfiles ${headerfiles} ${f})
+      endforeach()
+    else()
+      set(headerfiles ${headerfiles} ${fp})
+    endif()
+  endforeach()
+  #---Get Selection file------------------------------------
+  if(IS_ABSOLUTE ${ARG_SELECTION})
+    set(selectionfile ${ARG_SELECTION})
+  else() 
+    set(selectionfile ${CMAKE_CURRENT_SOURCE_DIR}/${ARG_SELECTION})
+  endif()
+  #---Get the list of include directories------------------
+  get_directory_property(incdirs INCLUDE_DIRECTORIES)
+  set(includedirs) 
+  foreach( d ${incdirs})    
+    set(includedirs ${includedirs} -I${d})
+  endforeach()
+  #---Get preprocessor definitions--------------------------
+  get_directory_property(defs COMPILE_DEFINITIONS)
+  foreach( d ${defs})    
+   set(definitions ${definitions} -D${d})
+  endforeach()
+  #---Nanes and others---------------------------------------
+  set(gensrcdict ${dictionary}.cpp)
+  if(MSVC)
+    set(gccxmlopts "--gccxmlopt=\"--gccxml-compiler cl\"")
+  else()
+    #set(gccxmlopts "--gccxmlopt=\'--gccxml-cxxflags -m64 \'")
+    set(gccxmlopts)
+  endif()  
+  #set(rootmapname ${dictionary}Dict.rootmap)
+  #set(rootmapopts --rootmap=${rootmapname} --rootmap-lib=${libprefix}${dictionary}Dict)
+  #---Check GCCXML and get path-----------------------------
+  if(GCCXML)
+    get_filename_component(gccxmlpath ${GCCXML} PATH)
+  else()
+    message(WARNING "GCCXML not found. Install and setup your environment to find 'gccxml' executable")
+  endif()
+  #---Actual command----------------------------------------
+  add_custom_command(OUTPUT ${gensrcdict} ${rootmapname}     
+                     COMMAND ${GENREFLEX_EXECUTABLE} ${headerfiles} -o ${gensrcdict} ${gccxmlopts} ${rootmapopts} --select=${selectionfile}
+                             --gccxmlpath=${gccxmlpath} ${ARG_OPTIONS} ${includedirs} ${definitions}
+                     DEPENDS ${headerfiles} ${selectionfile})
+endfunction()
+