FindROOT + dictionary generating macro

FindROOT module will search for ROOT inside ROOTSYS variable
passed to cmake configuration. This is NOT an environment variable,
but a CMake one.

Dictionary generation is done using a macro. There is no need to add
ROOT to LD_LIBRARY_PATH for cint to properly work.

diff --git a/cmake/CMakeALICE.cmake b/cmake/CMakeALICE.cmake
new file mode 100644 (file)
index 0000000..e8d5d05
--- /dev/null
+++ b/cmake/CMakeALICE.cmake
@@ -0,0 +1,31 @@
+# General purpose functions
+
+# Generation of the dictionaries
+# @DNAME  Dictionary name
+# @LDNAME LinkDef file name, ex: LinkDef.h
+# @DHDRS  Dictionary headers
+# @DINCDIR Include folders that need to be passed to cint/cling
+macro(generate_dictionary DNAME LDNAME DHDRS DINCDIRS)
+    # Creating the INCLUDE path for cint/cling
+    foreach( dir ${DINCDIRS})
+        set(INCLUDE_PATH -I${dir} ${INCLUDE_PATH})
+    endforeach()
+    
+    # Generate the dictionary
+    message(STATUS "Generating dictionary ${DNAME} for ${LDNAME}")
+    
+#    message(STATUS "${CMAKE_CURRENT_BINARY_DIR}/G__${DNAME}.cxx")
+#    message(STATUS "${CMAKE_CURRENT_BINARY_DIR}/G__${DNAME}.h")
+#    message(STATUS "bbb${INCLUDE_PATH}bbb")
+#    message(STATUS "${DHDRS} ${LDNAME}")
+#    message(STATUS "${CMAKE_CURRENT_SOURCE_DIR}")
+    
+    add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/G__${DNAME}.cxx ${CMAKE_CURRENT_BINARY_DIR}/G__${DNAME}.h
+                       COMMAND LD_LIBRARY_PATH=${ROOT_LIBDIR}:$ENV{LD_LIBRARY_PATH} ${ROOT_CINT}
+                       ARGS -f ${CMAKE_CURRENT_BINARY_DIR}/G__${DNAME}.cxx -c -p 
+                       ${INCLUDE_PATH} 
+                       ${DHDRS} ${LDNAME}
+                       DEPENDS ${DHDRS} ${LDNAME}
+                       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+                      )
+endmacro(generate_dictionary)
\ No newline at end of file

diff --git a/cmake/FindROOT.cmake b/cmake/FindROOT.cmake
index c22bb8c36f08d83cbeb3c08209644eeab73983f3..2fa32cd1098b8fcb01bd77c1abc5a9563a080a16 100644 (file)
--- a/cmake/FindROOT.cmake
+++ b/cmake/FindROOT.cmake
@@ -1,59 +1,110 @@
-# AliRoot Build System Module to find and configure ROOT
-#
-# Author: Johny Jose m(johny.jose@cern.ch)
-#         Port of previous Makefile build to cmake
-
-cmake_minimum_required(VERSION 2.8.8 FATAL_ERROR)
-
-# We don't care if ROOTSYS environment variable is set or not - 
-# all we care about is that we can find root-config in our path
-# set(ROOTSYS $ENV{ROOTSYS} CACHE STRING "" FORCE)
-# if(NOT ROOTSYS)
-#   message(FATAL_ERROR "Environment variable $ROOTSYS is not set !")
-# else()
-#   get_filename_component(ROOTSYS "${ROOTSYS}" REALPATH)
-# endif(NOT ROOTSYS)
-find_program(ROOT_CONFIG NAMES root-config)
-find_program(ROOTCINT NAMES rootcint)
-if(NOT ROOT_CONFIG)
-  message(FATAL_ERROR "root-config is not installed on this system")
-endif(NOT ROOT_CONFIG)
-message(STATUS "Check for root-config: ${ROOT_CONFIG}")
-message(STATUS "Check for rootcint: ${ROOTCINT}")
-if(ROOT_CONFIG AND ROOTCINT)
-  set(ROOT_FOUND TRUE)
-  ALICE_RootConfig(ROOT_VERSION --version)
-  message(STATUS "ROOT ${ROOT_VERSION} found")
-  ALICE_RootConfig(ROOTLIBDIR --libdir)
-  ALICE_RootConfig(ROOTPLUGDIR --version)
-  string(REGEX REPLACE "(^.*/)[^/]+" "${ROOTLIBDIR}/\\1" ROOTPLUGDIR ${ROOTPLUGDIR})
-  ALICE_RootConfig(ROOTINCDIR --incdir)
-  ALICE_RootConfig(ROOTCLIBS --glibs)
-  ALICE_RootConfig(ROOTHASALIEN --has-alien)
-  ALICE_RootConfig(ROOTHASXML --has-xml)
-  # ALICE_RootConfig(ROOTHASVC  --has-vc)
-#  set(ROOTCLIBS "${ROOTCLIBS} -lThread -lMinuit -lVMC -lEG -lGeom -lTreePlayer -lXMLIO -lXMLParser -lProof -lProofPlayer -lMLP -lSpectrum -L${ROOTPLUGDIR}" )
-  set(ROOTCLIBS "${ROOTCLIBS} -lThread -lMinuit -lVMC -lEG -lGeom -lTreePlayer -lXMLIO -lXMLParser -lProof -lProofPlayer -lMLP -lSpectrum" )
-  # if(${ROOTHASVC} STREQUAL "yes")    
-  #   set(ROOTCLIBS "${ROOTCLIBS} -lVc")
-  # endif(${ROOTHASVC} STREQUAL "yes") 
-  set(ROOTPLIBS $ENV{ROOTPLIBS})
-  if(NOT $ENV{ROOTSYS})
-  message(STATUS "ROOTSYS directory : ${ROOTSYS}") 
-  else()
-    message(STATUS "ROOTSYS directory : not set - assume prefix build")
-  endif(NOT $ENV{ROOTSYS})
-  message(STATUS "ROOT include directory: ${ROOTINCDIR}")
-  message(STATUS "ROOT library directory: ${ROOTLIBDIR}")
-  # message(STATUS "ROOT libraries: ${ROOTCLIBS}")
-  # message(STATUS "ROOT has Vc: ${ROOTHASVC}")
-  # message(STATUS "ROOT has XML: ${ROOTHASXML}")
-  set(ROOT6_ALPHA "5.99.1")
-  string(REGEX REPLACE "/0*" "." ROOT_DOTVERSION ${ROOT_VERSION})
-  if(ROOT_DOTVERSION VERSION_GREATER ROOT6_ALPHA)
-    message(WARNING 
-      "Compling and linking against ROOT6 alpha is highly experimental")
-  endif(ROOT_DOTVERSION VERSION_GREATER ROOT6_ALPHA)
+# **************************************************************************
+# * Copyright(c) 1998-2014, ALICE Experiment at CERN, All rights reserved. *
+# *                                                                        *
+# * Author: The ALICE Off-line Project.                                    *
+# * Contributors are mentioned in the code where appropriate.              *
+# *                                                                        *
+# * Permission to use, copy, modify and distribute this software and its   *
+# * documentation strictly for non-commercial purposes is hereby granted   *
+# * without fee, provided that the above copyright notice appears in all   *
+# * copies and that both the copyright notice and this permission notice   *
+# * appear in the supporting documentation. The authors make no claims     *
+# * about the suitability of this software for any purpose. It is          *
+# * provided "as is" without express or implied warranty.                  *
+# **************************************************************************
+
+# Checking for a proper ROOT installation based on the ROOTSYS variable
+# received during configuration
+# If proper root installation it is setting the following variables
+# - ROOT_VERSION - ROOT version as reported by root-config
+# - ROOT_VERSION_MAJOR
+# - ROOT_VERSIOM_MINOR
+# - ROOT_VERSION_PATCH
+# - ROOT_CONFIG - path to root-config script
+# - ROOT_CINT - path to rootcint executable
+# - ROOT_FEATURES - list of build features for ROOT
+# - ROOT_LIBDIR - full path to ROOT library folder
+# - ROOT_LIBRARIES - libraries needed for the package to be used
+# - ROOT_INCLUDE_DIRS - full path to ROOT include folder
+# - ROOT_GLIBS - regular + GUI ROOT libraries + path to be used during linking
+# - ROOT_HASALIEN - ROOT was built with AliEn support
+# - ROOT_HASXML - ROOT was built with XML support
+
+
+if(ROOTSYS)
+    message(STATUS "Checking for a proper ROOT installation in ${ROOTSYS}.")
+
+    # Setting the LD_LiBRARY_PATH to point to ROOT lib folder
+    set(ROOT_LIBDIR ${ROOTSYS}/lib)
+    set(ROOT_INCLUDE_DIRS ${ROOTSYS}/include)
+
+    # Check for root-config scripts
+    find_program(ROOT_CONFIG NAMES root-config PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
+
+    if(ROOT_CONFIG)
+        message(STATUS "Found root-config: ${ROOT_CONFIG}")
+    else()
+        message(FATAL_ERROR "Could not find root-config script.")
+    endif(ROOT_CONFIG)
+
+    # Check for rootcint
+    find_program(ROOT_CINT NAMES rootcint PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
+    if(ROOT_CINT)
+        message(STATUS "Found ${ROOT_CINT}")
+    else()
+        message(FATAL_ERROR "Could not find rootcint executable.")
+    endif(ROOT_CINT)
+
+    # Checking ROOT version
+    execute_process(COMMAND ${ROOT_CONFIG} --version OUTPUT_VARIABLE ROOT_VERSION ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error retrieving ROOT version : ${error}")
+    endif(error)
+
+    # Extract major, minor, and patch versions from
+    string(REGEX REPLACE "^([0-9]+)\\.[0-9][0-9]+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MAJOR "${ROOT_VERSION}")
+    string(REGEX REPLACE "^[0-9]+\\.([0-9][0-9])+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MINOR "${ROOT_VERSION}")
+    string(REGEX REPLACE "^[0-9]+\\.[0-9][0-9]+\\/([0-9][0-9]+).*" "\\1" ROOT_VERSION_PATCH "${ROOT_VERSION}")
+    message(STATUS "Found ROOT version ${ROOT_VERSION_MAJOR}.${ROOT_VERSION_MINOR}.${ROOT_VERSION_PATCH}")
+
+    # Print ROOT features
+    execute_process(COMMAND ${ROOT_CONFIG} --features OUTPUT_VARIABLE ROOT_FEATURES ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error retrieving ROOT features : ${error}")
+    else()
+        message(STATUS "ROOT was build with the following features: ${ROOT_FEATURES}")
+    endif(error)
+
+    # Checking for ROOT libdir
+    execute_process(COMMAND ${ROOT_CONFIG} --libdir OUTPUT_VARIABLE ROOT_LIBDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
+    endif(error)
+
+    # Checking for ROOT incdir
+    execute_process(COMMAND ${ROOT_CONFIG} --incdir OUTPUT_VARIABLE ROOT_INCDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error retrieving ROOT incdir: ${error}")
+    endif(error)
+
+    # Checking for glibs
+    execute_process(COMMAND ${ROOT_CONFIG} --glibs OUTPUT_VARIABLE ROOT_GLIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error retrieving ROOT glibs: ${error}")
+    endif(error)
+
+    # Checking for glibs
+    execute_process(COMMAND ${ROOT_CONFIG} --has-alien OUTPUT_VARIABLE ROOT_HASALIEN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error checking if ROOT was build with AliEn support: ${error}")
+    endif(error)
+
+    execute_process(COMMAND ${ROOT_CONFIG} --has-xml OUTPUT_VARIABLE ROOT_HASXML ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
+    if(error)
+        message(FATAL_ERROR "Error checking if ROOT was build with xml support: ${error}")
+    endif(error)
+
+    set(ROOT_FOUND TRUE)
 else()
-  message(FATAL_ERROR "rootcint not found ! Please check your ROOT installation.")
-endif(ROOT_CONFIG AND ROOTCINT)
+    message(FATAL_ERROR "ROOT installation not found! Please point to the ROOT installation using -DROOTSYS=ROOT_INSTALL_DIR.")
+endif(ROOTSYS)
\ No newline at end of file

diff --git a/cmake/FindROOT.cmake.old b/cmake/FindROOT.cmake.old
new file mode 100644 (file)
index 0000000..a42adc6
--- /dev/null
+++ b/cmake/FindROOT.cmake.old
@@ -0,0 +1,59 @@
+# AliRoot Build System Module to find and configure ROOT
+#
+# Author: Johny Jose m(johny.jose@cern.ch)
+#         Port of previous Makefile build to cmake
+
+cmake_minimum_required(VERSION 2.8.4 FATAL_ERROR)
+
+# We don't care if ROOTSYS environment variable is set or not - 
+# all we care about is that we can find root-config in our path
+# set(ROOTSYS $ENV{ROOTSYS} CACHE STRING "" FORCE)
+# if(NOT ROOTSYS)
+#   message(FATAL_ERROR "Environment variable $ROOTSYS is not set !")
+# else()
+#   get_filename_component(ROOTSYS "${ROOTSYS}" REALPATH)
+# endif(NOT ROOTSYS)
+find_program(ROOT_CONFIG NAMES root-config)
+find_program(ROOTCINT NAMES rootcint)
+if(NOT ROOT_CONFIG)
+  message(FATAL_ERROR "root-config is not installed on this system")
+endif(NOT ROOT_CONFIG)
+message(STATUS "Check for root-config: ${ROOT_CONFIG}")
+message(STATUS "Check for rootcint: ${ROOTCINT}")
+if(ROOT_CONFIG AND ROOTCINT)
+  set(ROOT_FOUND TRUE)
+  ALICE_RootConfig(ROOT_VERSION --version)
+  message(STATUS "ROOT ${ROOT_VERSION} found")
+  ALICE_RootConfig(ROOTLIBDIR --libdir)
+  ALICE_RootConfig(ROOTPLUGDIR --version)
+  string(REGEX REPLACE "(^.*/)[^/]+" "${ROOTLIBDIR}/\\1" ROOTPLUGDIR ${ROOTPLUGDIR})
+  ALICE_RootConfig(ROOTINCDIR --incdir)
+  ALICE_RootConfig(ROOTCLIBS --glibs)
+  ALICE_RootConfig(ROOTHASALIEN --has-alien)
+  ALICE_RootConfig(ROOTHASXML --has-xml)
+  # ALICE_RootConfig(ROOTHASVC  --has-vc)
+#  set(ROOTCLIBS "${ROOTCLIBS} -lThread -lMinuit -lVMC -lEG -lGeom -lTreePlayer -lXMLIO -lXMLParser -lProof -lProofPlayer -lMLP -lSpectrum -L${ROOTPLUGDIR}" )
+  set(ROOTCLIBS "${ROOTCLIBS} -lThread -lMinuit -lVMC -lEG -lGeom -lTreePlayer -lXMLIO -lXMLParser -lProof -lProofPlayer -lMLP -lSpectrum" )
+  # if(${ROOTHASVC} STREQUAL "yes")    
+  #   set(ROOTCLIBS "${ROOTCLIBS} -lVc")
+  # endif(${ROOTHASVC} STREQUAL "yes") 
+  set(ROOTPLIBS $ENV{ROOTPLIBS})
+  if(NOT $ENV{ROOTSYS})
+  message(STATUS "ROOTSYS directory : ${ROOTSYS}") 
+  else()
+    message(STATUS "ROOTSYS directory : not set - assume prefix build")
+  endif(NOT $ENV{ROOTSYS})
+  message(STATUS "ROOT include directory: ${ROOTINCDIR}")
+  message(STATUS "ROOT library directory: ${ROOTLIBDIR}")
+  # message(STATUS "ROOT libraries: ${ROOTCLIBS}")
+  # message(STATUS "ROOT has Vc: ${ROOTHASVC}")
+  # message(STATUS "ROOT has XML: ${ROOTHASXML}")
+  set(ROOT6_ALPHA "5.99.1")
+  string(REGEX REPLACE "/0*" "." ROOT_DOTVERSION ${ROOT_VERSION})
+  if(ROOT_DOTVERSION VERSION_GREATER ROOT6_ALPHA)
+    message(WARNING 
+      "Compling and linking against ROOT6 alpha is highly experimental")
+  endif(ROOT_DOTVERSION VERSION_GREATER ROOT6_ALPHA)
+else()
+  message(FATAL_ERROR "rootcint not found ! Please check your ROOT installation.")
+endif(ROOT_CONFIG AND ROOTCINT)