lcio
diff -u -r1.2 -r1.3
--- FindROOT.cmake 22 Jan 2010 14:44:12 -0000 1.2
+++ FindROOT.cmake 25 Jun 2010 09:50:02 -0000 1.3
@@ -1,14 +1,38 @@
-#####################################
+###############################################################################
# cmake module for finding ROOT
#
-# returns:
-# ROOT_FOUND
-# ROOT_INCLUDE_DIRS
-# ROOT_LIBRARIES
-# ROOT_DEFINITIONS
+# Following cmake variables are returned by this module:
+#
+# ROOT_FOUND # set to TRUE if ROOT was successfully found
+# ROOT_INCLUDE_DIRS # list of directories where ROOT headers live
+# ROOT_LIBRARIES # list of all ROOT libraries (including components)
+# ROOT_DEFINITIONS # definitions set by this module (-DUSE_ROOT ...)
+# ROOT_${COMPONENT}_FOUND # for ROOT components, e.g. Minuit2 MathMore ...
+#
+#
+# Please note that by convention components should be entered exactly as
+# the library names, i.e. the component name equivalent to the library
+# $ROOTSYS/lib/libMathMore.so should be called MathMore and NOT:
+# mathmore or Mathmore or MATHMORE
+#
+# However to follow the usual cmake convention it is agreed that the
+# ROOT_${COMPONENT}_FOUND variables are ALL uppercase, i.e. the MathMore
+# component returns: ROOT_MATHMORE_FOUND and NOT ROOT_MathMore_FOUND
+#
+#
+# The additional ROOT components can be defined directly in the cmake commando:
+# FIND_PACKAGE( ROOT COMPONENTS MathMore Gdml Geo ...)
+#
+# Or in the variable ROOT_USE_COMPONENTS before calling find_package, i.e.:
+# SET( ROOT_USE_COMPONENTS MathMore Gdml Geo )
+# FIND_PACKAGE( ROOT )
+#
+# The Minuit2 component is always added for backwards compatibility.
#
# @author Jan Engels, DESY
-#####################################
+###############################################################################
+
+
SET( ROOT_FOUND FALSE )
MARK_AS_ADVANCED( ROOT_FOUND )
@@ -16,23 +40,34 @@
# Threads library is needed for root
#FIND_PACKAGE( Threads REQUIRED)
-# include dirs
-SET( ROOT_INCLUDE_DIR ROOT_INCLUDE_DIR-NOTFOUND )
-MARK_AS_ADVANCED( ROOT_INCLUDE_DIR )
+# set ROOTSYS for running root-config
+IF( DEFINED ROOT_HOME )
+ SET( ENV{ROOTSYS} "${ROOT_HOME}" )
+ENDIF()
-# set env ROOTSYS for running root-config
-SET( ENV{ROOTSYS} "${ROOT_HOME}" )
-# also try to get include dir from root-config
+
+
+# ==============================================
+# === ROOT_INCLUDE_DIR ===
+# ==============================================
+
+# get include dir from root-config output
EXEC_PROGRAM( "${ROOT_HOME}/bin/root-config" "${ROOT_HOME}/bin"
ARGS --incdir
OUTPUT_VARIABLE ROOT_INC_DIR
- RETURN_VALUE incdir_ret )
-# if command fails clean up variable
-IF( incdir_ret )
+ RETURN_VALUE exit_code
+)
+IF( NOT exit_code EQUAL 0 )
+ # clear ROOT_INC_DIR if root-config exits with error
+ # it could have garbage output
SET( ROOT_INC_DIR )
ENDIF()
+
+SET( ROOT_INCLUDE_DIR ROOT_INCLUDE_DIR-NOTFOUND )
+MARK_AS_ADVANCED( ROOT_INCLUDE_DIR )
+
FIND_PATH( ROOT_INCLUDE_DIR
NAMES TH1.h
PATHS ${ROOT_HOME}/include ${ROOT_INC_DIR}
@@ -43,68 +78,125 @@
" -- failed to find ROOT include directory!!" )
ENDIF()
-# libraries
-SET( ROOT_LIB_NAMES )
+
+
+
+# ==============================================
+# === ROOT_LIBRARIES ===
+# ==============================================
+
+# check if this flag is set to FALSE at the end of
+# this module to make sure all libraries were found
SET( ROOT_FINDLIB_FAILED FALSE )
-MARK_AS_ADVANCED( ROOT_LIB_NAMES ROOT_FINDLIB_FAILED )
+MARK_AS_ADVANCED( ROOT_FINDLIB_FAILED )
-# get lib names from 'root-config' output
+
+# get library dir from root-config output
EXEC_PROGRAM( "${ROOT_HOME}/bin/root-config" "${ROOT_HOME}/bin"
- ARGS --noauxlibs --libs
-# ARGS --noauxlibs --glibs
- OUTPUT_VARIABLE out_tmp
- RETURN_VALUE out_ret )
+ ARGS --libdir
+ OUTPUT_VARIABLE ROOT_LIB_DIR
+ RETURN_VALUE exit_code
+)
+IF( NOT exit_code EQUAL 0 )
+ # clear ROOT_LIB_DIR if root-config exits with error
+ # it could have garbage output
+ SET( ROOT_LIB_DIR )
+ENDIF()
+
+
+
+# ========== look for standard root libraries =================
-#SET( out_tmp "-L/data/ilcsoft/root/trunk/lib -lCore -lCint -lRIO -lNet -lHist -lTree -lMathCore")
+# standard root libraries (without components)
+SET( ROOT_LIB_NAMES )
+SET( ROOT_LIBS )
+MARK_AS_ADVANCED( ROOT_LIB_NAMES ROOT_LIBS )
-# check if everything went ok
-IF( NOT out_ret )
+# get standard root libraries from 'root-config --libs' output
+EXEC_PROGRAM( "${ROOT_HOME}/bin/root-config" "${ROOT_HOME}/bin"
+ #ARGS --noauxlibs --glibs
+ ARGS --noauxlibs --libs
+ OUTPUT_VARIABLE cmd_output
+ RETURN_VALUE exit_code
+)
+IF( exit_code EQUAL 0 )
+
# create a list out of the output
- SEPARATE_ARGUMENTS( out_tmp )
+ SEPARATE_ARGUMENTS( cmd_output )
+
# remove first item -L compiler flag
- LIST( REMOVE_AT out_tmp 0 )
- # extract libnames from -l compiler flags
- FOREACH( lib ${out_tmp} )
+ LIST( REMOVE_AT cmd_output 0 )
+
+ FOREACH( lib ${cmd_output} )
+
+ # extract libnames from -l compiler flags
STRING( REGEX REPLACE "^-.(.*)$" "\\1" libname "${lib}")
+
+ # append all library names into a list
LIST( APPEND ROOT_LIB_NAMES ${libname} )
- ENDFOREACH()
- # check for ROOT Minuit2
- EXEC_PROGRAM( "${ROOT_HOME}/bin/root-config" "${ROOT_HOME}/bin"
- ARGS --has-minuit2
- OUTPUT_VARIABLE has_minuit
- RETURN_VALUE has_minuit_ret )
- IF( NOT has_minuit_ret )
- # determine if Minuit2 is included with ROOT
- IF( has_minuit STREQUAL "yes" )
- LIST( APPEND ROOT_LIB_NAMES "Minuit2" )
+ SET( ROOT_LIB_${libname} ROOT_LIB_${libname}-NOTFOUND )
+ MARK_AS_ADVANCED( ROOT_LIB_${libname} )
+
+ FIND_LIBRARY( ROOT_LIB_${libname}
+ NAMES ${libname}
+ PATHS ${ROOT_HOME}/lib ${ROOT_LIB_DIR}
+ NO_DEFAULT_PATH
+ )
+
+ IF( NOT ROOT_LIB_${libname} )
+ SET( ROOT_FINDLIB_FAILED TRUE )
+ IF( NOT ROOT_FIND_QUIETLY )
+ MESSAGE( STATUS "Check for ROOT: ${ROOT_HOME}"
+ " -- failed to find ROOT library: ${libname}" )
+ ENDIF()
+ ELSE()
+ LIST( APPEND ROOT_LIBS ${ROOT_LIB_${libname}} )
ENDIF()
- ENDIF()
+
+ ENDFOREACH()
IF( NOT ROOT_FIND_QUIETLY )
MESSAGE( STATUS "Check for ROOT: detected libraries: ${ROOT_LIB_NAMES}" )
ENDIF()
+
ELSE()
- #IF( NOT ROOT_FIND_QUIETLY )
- # MESSAGE( STATUS "Error trying to execute root-config --noauxlibs --glibs!!" )
- # MESSAGE( STATUS "${out_tmp}" )
- #ENDIF()
- # ensure that detection fails
SET( ROOT_FINDLIB_FAILED TRUE )
ENDIF()
-# also try to get library dir from root-config
-EXEC_PROGRAM( "${ROOT_HOME}/bin/root-config" "${ROOT_HOME}/bin"
- ARGS --libdir
- OUTPUT_VARIABLE ROOT_LIB_DIR
- RETURN_VALUE libdir_ret )
-# if command fails clean up variable
-IF( libdir_ret )
- SET( ROOT_LIB_DIR )
+
+
+# ========== look for additional root components =================
+
+SET( ROOT_COMPONENT_LIBS )
+MARK_AS_ADVANCED( ROOT_COMPONENT_LIBS )
+
+# Minuit2 is always included (for backwards compatibility )
+LIST( APPEND ROOT_FIND_COMPONENTS Minuit2 )
+
+# append components defined in the variable ROOT_USE_COMPONENTS
+IF( DEFINED ROOT_USE_COMPONENTS )
+ LIST( APPEND ROOT_FIND_COMPONENTS ${ROOT_USE_COMPONENTS} )
+ENDIF()
+
+# REMOVE_DUPLICATES is only available in cmake versions >= 2.6
+# it is not a problem if a component is duplicated in the list, this is just done
+# for consistency and to display the message below without duplicate components
+IF( ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} EQUAL 2.6 OR
+ ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.6 )
+ IF( ROOT_FIND_COMPONENTS )
+ LIST(REMOVE_DUPLICATES ROOT_FIND_COMPONENTS)
+ ENDIF()
+ENDIF()
+
+IF( NOT ROOT_FIND_QUIETLY )
+ MESSAGE( STATUS "Check for ROOT: additional components: ${ROOT_FIND_COMPONENTS}" )
ENDIF()
-# find libraries
-FOREACH( libname ${ROOT_LIB_NAMES} )
+FOREACH( libname ${ROOT_FIND_COMPONENTS} )
+
+ # name of the component in upper case
+ STRING( TOUPPER ${libname} upper_component_name)
SET( ROOT_LIB_${libname} ROOT_LIB_${libname}-NOTFOUND )
MARK_AS_ADVANCED( ROOT_LIB_${libname} )
@@ -112,32 +204,43 @@
FIND_LIBRARY( ROOT_LIB_${libname}
NAMES ${libname}
PATHS ${ROOT_HOME}/lib ${ROOT_LIB_DIR}
- NO_DEFAULT_PATH )
+ NO_DEFAULT_PATH
+ )
IF( NOT ROOT_LIB_${libname} )
- SET( ROOT_FINDLIB_FAILED TRUE )
+ #SET( ROOT_FINDLIB_FAILED TRUE )
IF( NOT ROOT_FIND_QUIETLY )
MESSAGE( STATUS "Check for ROOT: ${ROOT_HOME}"
- " -- failed to find ROOT ${libname} library!!" )
+ " -- failed to find ROOT component: ${libname}" )
ENDIF()
ELSE()
- LIST( APPEND ROOT_LIBS ${ROOT_LIB_${libname}} )
+ SET( ROOT_${upper_component}_FOUND TRUE )
+ LIST( APPEND ROOT_COMPONENT_LIBS ${ROOT_LIB_${libname}} )
ENDIF()
ENDFOREACH()
-FIND_LIBRARY( DL_LIB NAMES ${CMAKE_DL_LIBS} dl )
-IF( NOT DL_LIB AND NOT ROOT_FIND_QUIETLY )
- MESSAGE( STATUS "Check for ROOT: failed to find libdl.so" )
-ELSE()
- MESSAGE( STATUS "Check for ROOT: using dl library: ${DL_LIB}" )
-ENDIF()
+
+# ====== DL LIBRARY ==================================================
+# comment out this code due to cmake bug in 64 bit:
+# see: http://public.kitware.com/mantis/view.php?id=10813
+#
+#FIND_LIBRARY( DL_LIB NAMES ${CMAKE_DL_LIBS} dl )
+#IF( NOT DL_LIB AND NOT ROOT_FIND_QUIETLY )
+# MESSAGE( STATUS "Check for ROOT: failed to find libdl.so" )
+# SET( ROOT_FINDLIB_FAILED TRUE )
+#ELSE()
+# MESSAGE( STATUS "Check for ROOT: using dl library: ${DL_LIB}" )
+#ENDIF()
+
+
# set variables and display results
-IF( ROOT_INCLUDE_DIR AND NOT ROOT_FINDLIB_FAILED AND DL_LIB )
+IF( ROOT_INCLUDE_DIR AND NOT ROOT_FINDLIB_FAILED )
SET( ROOT_FOUND TRUE )
SET( ROOT_INCLUDE_DIRS ${ROOT_INCLUDE_DIR} )
#SET( ROOT_LIBRARIES ${ROOT_LIBS} ${DL_LIB} ${CMAKE_THREAD_LIBS_INIT} )
- SET( ROOT_LIBRARIES ${ROOT_LIBS} ${DL_LIB} )
+ #SET( ROOT_LIBRARIES ${ROOT_LIBS} ${ROOT_COMPONENT_LIBS} ${DL_LIB} )
+ SET( ROOT_LIBRARIES ${ROOT_LIBS} ${ROOT_COMPONENT_LIBS} )
SET( ROOT_DEFINITIONS "-DUSEROOT -DUSE_ROOT -DMARLIN_USE_ROOT" )
MARK_AS_ADVANCED( ROOT_LIBRARIES ROOT_DEFINITIONS )
MESSAGE( STATUS "Check for ROOT: ${ROOT_HOME} -- works" )
@@ -149,3 +252,4 @@
MESSAGE( STATUS "Check for ROOT -- failed!! skip this package..." )
ENDIF()
ENDIF()
+
