[u/mrichter/AliRoot.git] / cmake / FindROOT.cmake

# **************************************************************************
# * 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_LIBMAP - path to rlibmap executable
# - ROOT_FEATURES - list of build features for ROOT
# - ROOT_LIBDIR - full path to ROOT library folder
# - ROOT_ETCDIR - full path to the ROOT's configuration directory
# - ROOT_LIBRARIES - libraries needed for the package to be used
# - ROOT_GLIBRARIES - regular + GUI ROOT libraries + path to be used during linking
# - ROOT_INCLUDE_DIR - full path to ROOT include folder
# - ROOT_HASALIEN - ROOT was built with AliEn support
# - ROOT_HASOPENGL - ROOT was built with OpenGL support
# - ROOT_HASXML - ROOT was built with XML support
# - ROOT_FORTRAN - fortran compiler

set(ROOT_FOUND FALSE)

if(ROOTSYS)
    message(STATUS "Checking for a proper ROOT installation in ${ROOTSYS}.")

    # Setting defaults
    set(ROOT_LIBDIR ${ROOTSYS}/lib)
    set(ROOT_INCLUDE_DIR ${ROOTSYS}/include)

    # Check for root-config scripts
    find_program(ROOT_CONFIG NAMES root-config PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)

    if(NOT ROOT_CONFIG)
        message(FATAL_ERROR "Could not find root-config script.")
    endif(NOT ROOT_CONFIG)

    # Check for rlibmap
    find_program(ROOT_LIBMAP NAMES rlibmap rootcling PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
    if(ROOT_LIBMAP)
        message(STATUS "Found ${ROOT_LIBMAP}")
    else()
        message(FATAL_ERROR "Could not find rlibmap executable.")
    endif(ROOT_LIBMAP)

    # 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 : ${error}")
    endif(error)
    string(STRIP "${ROOT_VERSION}" ROOT_VERSION)

    # 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 built with the following features: ${ROOT_FEATURES}")
    endif(error)
    string(STRIP "${ROOT_FEATURES}" ROOT_FEATURES)

    # 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: ${error}")
    endif(error)
    string(STRIP "${ROOT_LIBDIR}" ROOT_LIBDIR)

    # Checking for ROOT etcdir
    execute_process(COMMAND ${ROOT_CONFIG} --etcdir OUTPUT_VARIABLE ROOT_ETCDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE)
    if(error)
        message(FATAL_ERROR "Error retrieving ROOT etcdir: ${error}")
    endif(error)
    string(STRIP "${ROOT_ETCDIR}" ROOT_ETCDIR)

    # Checking for ROOT libs
    execute_process(COMMAND ${ROOT_CONFIG} --noldflags --libs OUTPUT_VARIABLE ROOT_LIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
    if(error)
        message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
    endif(error)
    string(STRIP "${ROOT_LIBS}" ROOT_LIBS)

    foreach(lib ${ROOT_LIBS})
        string(REPLACE "-rdynamic" "" new_lib ${lib})
        string(REPLACE "-l" "" lib ${new_lib})
        set(ROOT_LIBRARIES ${ROOT_LIBRARIES} ${lib})
    endforeach()
    string(STRIP "${ROOT_LIBRARIES}" ROOT_LIBRARIES)
    separate_arguments(ROOT_LIBRARIES)

    # 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: ${error}")
    endif(error)
    string(STRIP "${ROOT_INCDIR}" ROOT_INCDIR)
    set(ROOT_INCLUDE_DIR ${ROOT_INCDIR})

    # Checking for glibs
    execute_process(COMMAND ${ROOT_CONFIG} --noldflags --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
    string(STRIP "${ROOT_GLIBS}" ROOT_GLIBS)

    foreach(lib ${ROOT_GLIBS})
        string(REPLACE "-rdynamic" "" new_lib "${lib}")
        string(REPLACE "-l" "" lib "${new_lib}")
        set(ROOT_GLIBRARIES ${ROOT_GLIBRARIES} ${lib})
    endforeach()
    string(STRIP "${ROOT_GLIBRARIES}" ROOT_GLIBRARIES)
    separate_arguments(ROOT_GLIBRARIES)

    # Checking for AliEn support
    # If AliEn support is enabled we need to point to AliEn
    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 built with AliEn support: ${error}")
    endif(error)
    
    #if defined
    if(ROOT_HASALIEN)
        string(STRIP "${ROOT_HASALIEN}" ROOT_HASALIEN)
        if(ROOT_HASALIEN STREQUAL "yes")
            if(ALIEN)
            add_definitions(-DWITHALIEN)

            # AliEn might bring some system libraries, we need to use them
            if(EXISTS "${ALIEN}/lib")
                link_directories(${ALIEN}/lib)
            endif()

            # api/lib should always exists
            if(EXISTS "${ALIEN}/api/lib")
                link_directories(${ALIEN}/api/lib)
            endif()

            # include for AliEn
            if(EXISTS "${ALIEN}/include")
                include_directories(SYSTEM ${ALIEN}/include)
            endif()

            # api/include always exists
            if(EXISTS "${ALIEN}/api/include")
                include_directories(SYSTEM ${ALIEN}/api/include)
            endif()

            set(ROOT_HASALIEN TRUE)
            else(ALIEN)
            message(FATAL_ERROR "ROOT was built with AliEn support but no AliEn installation found. Please set \"ALIEN\" to point to your AliEn installation.")
            endif(ALIEN)
        else()
            set(ROOT_HASALIEN FALSE)
        endif()
    endif(ROOT_HASALIEN)

    # Checking for xml support
    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 built with xml support: ${error}")
    endif(error)
    
    # if defined
    if(ROOT_HASXML)
        string(STRIP "${ROOT_HASXML}" ROOT_HASXML)
        if(ROOT_HASXML STREQUAL "yes")
            add_definitions(-DWITHXML)
            set(ROOT_HASXML TRUE)
        else()
            set(ROOT_HASXML FALSE)
        endif()
    endif(ROOT_HASXML)

    # Checking for OpenGL support
    execute_process(COMMAND ${ROOT_CONFIG} --has-opengl OUTPUT_VARIABLE ROOT_HASOPENGL ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
    if(error)
        message(FATAL_ERROR "Error checking if ROOT was built with OpenGL support: ${error}")
    endif(error)
    
    if(ROOT_HASOPENGL)
        string(STRIP "${ROOT_HASOPENGL}" ROOT_HASOPENGL)
        if(ROOT_HASOPENGL STREQUAL "yes")
            set(ROOT_HASOPENGL TRUE)
        else()
            set(ROOT_HASOPENGL FALSE)
        endif()
    endif()


    # Checking for fortran compiler
    execute_process(COMMAND ${ROOT_CONFIG} --f77 OUTPUT_VARIABLE ROOT_FORTRAN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
    if(error)
        message(FATAL_ERROR "Error checking ROOT fortran compiler: ${error}")
    endif(error)
    string(STRIP "${ROOT_FORTRAN}" ROOT_FORTRAN)

    # adding the libraries and the inc dir
    link_directories(${ROOT_LIBDIR})
    include_directories(SYSTEM ${ROOT_INCLUDE_DIR})
    set(ROOT_FOUND TRUE)

    # Workaround misssing XML, VMC, Minuit from ROOT static library
    # Also adding libzma.a libfreetype.a libpcre.a
    # To be removed where https://sft.its.cern.ch/jira/browse/ROOT-6904 issue is fixed
    if(ALIROOT_STATIC)
        message(WARNING "AliRoot static build enabled! libRootExtra.a will be created.\nPlease remove when ROOT https://sft.its.cern.ch/jira/browse/ROOT-6904 issue is fixed")

        # ROOT needs xml2 but it is not built with the static version so we have to add it
        find_package(LibXml2)

        if(LIBXML2_FOUND)
        
            # adding SSL
            find_package(OpenSSL)
        
            if(OPENSSL_FOUND)
                file(GLOB _extraroot "${ROOTSYS}/montercarlo/vmc/src/*.o" "${ROOTSYS}/tree/treeplayer/src/*.o" "${ROOTSYS}/io/xmlparser/src/*.o" "${ROOTSYS}/math/minuit2/src/*.o")
                add_library(RootExtra STATIC ${_extraroot})
                set_target_properties(RootExtra PROPERTIES COMPILE_FLAGS "${LIBXML2_INCLUDE_DIR} ${OPENSSL_INCLUDE_DIR}")
                set_target_properties(RootExtra PROPERTIES LINKER_LANGUAGE CXX)
                target_link_libraries(RootExtra ${ROOT_LIBDIR}/libfreetype.a ${ROOT_LIBDIR}/libpcre.a ${ROOT_LIBDIR}/liblzma.a ${LIBXML2_LIBRARIES} ${OPENSSL_LIBRARIES})
            else()
                message(FATAL_ERROR "OpenSSL not found. Coould not generate the static RootExtra. Please install Openssl")
            endif()
        else()
            message(FATAL_ERROR "libxml2 not found. Can not generate the static RootExtra. Please install libxml2")
        endif()
    endif(ALIROOT_STATIC)
else()
    message(FATAL_ERROR "ROOT installation not found! Please point to the ROOT installation using -DROOTSYS=ROOT_INSTALL_DIR.")
endif(ROOTSYS)
Commit	Line	Data
fffaf6a5	1	# **************************************************************************
	2	# * Copyright(c) 1998-2014, ALICE Experiment at CERN, All rights reserved. *
	3	# * *
	4	# * Author: The ALICE Off-line Project. *
	5	# * Contributors are mentioned in the code where appropriate. *
	6	# * *
	7	# * Permission to use, copy, modify and distribute this software and its *
	8	# * documentation strictly for non-commercial purposes is hereby granted *
	9	# * without fee, provided that the above copyright notice appears in all *
	10	# * copies and that both the copyright notice and this permission notice *
	11	# * appear in the supporting documentation. The authors make no claims *
	12	# * about the suitability of this software for any purpose. It is *
	13	# * provided "as is" without express or implied warranty. *
	14	# **************************************************************************
	15
	16	# Checking for a proper ROOT installation based on the ROOTSYS variable
	17	# received during configuration
	18	# If proper root installation it is setting the following variables
	19	# - ROOT_VERSION - ROOT version as reported by root-config
	20	# - ROOT_VERSION_MAJOR
	21	# - ROOT_VERSIOM_MINOR
	22	# - ROOT_VERSION_PATCH
	23	# - ROOT_CONFIG - path to root-config script
	24	# - ROOT_CINT - path to rootcint executable
0224bae4	25	# - ROOT_LIBMAP - path to rlibmap executable
fffaf6a5	26	# - ROOT_FEATURES - list of build features for ROOT
fffaf6a5	27	# - ROOT_LIBDIR - full path to ROOT library folder
209fc56a	28	# - ROOT_ETCDIR - full path to the ROOT's configuration directory
fffaf6a5	29	# - ROOT_LIBRARIES - libraries needed for the package to be used
a0f34e87	30	# - ROOT_GLIBRARIES - regular + GUI ROOT libraries + path to be used during linking
aff16a25	31	# - ROOT_INCLUDE_DIR - full path to ROOT include folder
fffaf6a5	32	# - ROOT_HASALIEN - ROOT was built with AliEn support
aac9c09b	33	# - ROOT_HASOPENGL - ROOT was built with OpenGL support
fffaf6a5	34	# - ROOT_HASXML - ROOT was built with XML support
1dbe1076	35	# - ROOT_FORTRAN - fortran compiler
fffaf6a5	36
36799128	37	set(ROOT_FOUND FALSE)
36799128	38
fffaf6a5	39	if(ROOTSYS)
	40	message(STATUS "Checking for a proper ROOT installation in ${ROOTSYS}.")
	41
aff16a25	42	# Setting defaults
fffaf6a5	43	set(ROOT_LIBDIR ${ROOTSYS}/lib)
aff16a25	44	set(ROOT_INCLUDE_DIR ${ROOTSYS}/include)
fffaf6a5	45
	46	# Check for root-config scripts
	47	find_program(ROOT_CONFIG NAMES root-config PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
	48
36799128	49	if(NOT ROOT_CONFIG)
fffaf6a5	50	message(FATAL_ERROR "Could not find root-config script.")
36799128	51	endif(NOT ROOT_CONFIG)
3c517eb8	52
0224bae4	53	# Check for rlibmap
8e186b29	54	find_program(ROOT_LIBMAP NAMES rlibmap rootcling PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
0224bae4	55	if(ROOT_LIBMAP)
	56	message(STATUS "Found ${ROOT_LIBMAP}")
	57	else()
	58	message(FATAL_ERROR "Could not find rlibmap executable.")
	59	endif(ROOT_LIBMAP)
	60
fffaf6a5	61	# Check for rootcint
	62	find_program(ROOT_CINT NAMES rootcint PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
	63	if(ROOT_CINT)
	64	message(STATUS "Found ${ROOT_CINT}")
	65	else()
	66	message(FATAL_ERROR "Could not find rootcint executable.")
	67	endif(ROOT_CINT)
	68
	69	# Checking ROOT version
	70	execute_process(COMMAND ${ROOT_CONFIG} --version OUTPUT_VARIABLE ROOT_VERSION ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
	71	if(error)
	72	message(FATAL_ERROR "Error retrieving ROOT version : ${error}")
	73	endif(error)
6646d571	74	string(STRIP "${ROOT_VERSION}" ROOT_VERSION)
3c517eb8	75
fffaf6a5	76	# Extract major, minor, and patch versions from
	77	string(REGEX REPLACE "^([0-9]+)\\.[0-9][0-9]+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MAJOR "${ROOT_VERSION}")
	78	string(REGEX REPLACE "^[0-9]+\\.([0-9][0-9])+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MINOR "${ROOT_VERSION}")
	79	string(REGEX REPLACE "^[0-9]+\\.[0-9][0-9]+\\/([0-9][0-9]+).*" "\\1" ROOT_VERSION_PATCH "${ROOT_VERSION}")
	80	message(STATUS "Found ROOT version ${ROOT_VERSION_MAJOR}.${ROOT_VERSION_MINOR}.${ROOT_VERSION_PATCH}")
	81
	82	# Print ROOT features
	83	execute_process(COMMAND ${ROOT_CONFIG} --features OUTPUT_VARIABLE ROOT_FEATURES ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
	84	if(error)
	85	message(FATAL_ERROR "Error retrieving ROOT features : ${error}")
	86	else()
7345d84f	87	message(STATUS "ROOT was built with the following features: ${ROOT_FEATURES}")
fffaf6a5	88	endif(error)
6646d571	89	string(STRIP "${ROOT_FEATURES}" ROOT_FEATURES)
3c517eb8	90
fffaf6a5	91	# Checking for ROOT libdir
	92	execute_process(COMMAND ${ROOT_CONFIG} --libdir OUTPUT_VARIABLE ROOT_LIBDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
	93	if(error)
	94	message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
	95	endif(error)
6646d571	96	string(STRIP "${ROOT_LIBDIR}" ROOT_LIBDIR)
fffaf6a5	97
209fc56a	98	# Checking for ROOT etcdir
	99	execute_process(COMMAND ${ROOT_CONFIG} --etcdir OUTPUT_VARIABLE ROOT_ETCDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE)
	100	if(error)
	101	message(FATAL_ERROR "Error retrieving ROOT etcdir: ${error}")
	102	endif(error)
	103	string(STRIP "${ROOT_ETCDIR}" ROOT_ETCDIR)
	104
0224bae4	105	# Checking for ROOT libs
a0f34e87	106	execute_process(COMMAND ${ROOT_CONFIG} --noldflags --libs OUTPUT_VARIABLE ROOT_LIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
0224bae4	107	if(error)
	108	message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
	109	endif(error)
6646d571	110	string(STRIP "${ROOT_LIBS}" ROOT_LIBS)
3c517eb8	111
a0f34e87	112	foreach(lib ${ROOT_LIBS})
	113	string(REPLACE "-rdynamic" "" new_lib ${lib})
	114	string(REPLACE "-l" "" lib ${new_lib})
	115	set(ROOT_LIBRARIES ${ROOT_LIBRARIES} ${lib})
	116	endforeach()
6646d571	117	string(STRIP "${ROOT_LIBRARIES}" ROOT_LIBRARIES)
a0f34e87	118	separate_arguments(ROOT_LIBRARIES)
3c517eb8	119
fffaf6a5	120	# Checking for ROOT incdir
	121	execute_process(COMMAND ${ROOT_CONFIG} --incdir OUTPUT_VARIABLE ROOT_INCDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
	122	if(error)
	123	message(FATAL_ERROR "Error retrieving ROOT incdir: ${error}")
	124	endif(error)
6646d571	125	string(STRIP "${ROOT_INCDIR}" ROOT_INCDIR)
aff16a25	126	set(ROOT_INCLUDE_DIR ${ROOT_INCDIR})
3c517eb8	127
fffaf6a5	128	# Checking for glibs
a0f34e87	129	execute_process(COMMAND ${ROOT_CONFIG} --noldflags --glibs OUTPUT_VARIABLE ROOT_GLIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
fffaf6a5	130	if(error)
	131	message(FATAL_ERROR "Error retrieving ROOT glibs: ${error}")
	132	endif(error)
	133
	134	# Checking for glibs
6646d571	135	string(STRIP "${ROOT_GLIBS}" ROOT_GLIBS)
a0f34e87	136
	137	foreach(lib ${ROOT_GLIBS})
	138	string(REPLACE "-rdynamic" "" new_lib "${lib}")
	139	string(REPLACE "-l" "" lib "${new_lib}")
	140	set(ROOT_GLIBRARIES ${ROOT_GLIBRARIES} ${lib})
	141	endforeach()
6646d571	142	string(STRIP "${ROOT_GLIBRARIES}" ROOT_GLIBRARIES)
a0f34e87	143	separate_arguments(ROOT_GLIBRARIES)
3c517eb8	144
a0f34e87	145	# Checking for AliEn support
dcf9b878	146	# If AliEn support is enabled we need to point to AliEn
fffaf6a5	147	execute_process(COMMAND ${ROOT_CONFIG} --has-alien OUTPUT_VARIABLE ROOT_HASALIEN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
fffaf6a5	148	if(error)
7345d84f	149	message(FATAL_ERROR "Error checking if ROOT was built with AliEn support: ${error}")
fffaf6a5	150	endif(error)
b168bfa8	151
	152	#if defined
	153	if(ROOT_HASALIEN)
6646d571	154	string(STRIP "${ROOT_HASALIEN}" ROOT_HASALIEN)
b168bfa8	155	if(ROOT_HASALIEN STREQUAL "yes")
7345d84f	156	if(ALIEN)
	157	add_definitions(-DWITHALIEN)
	158
	159	# AliEn might bring some system libraries, we need to use them
	160	if(EXISTS "${ALIEN}/lib")
	161	link_directories(${ALIEN}/lib)
	162	endif()
	163
	164	# api/lib should always exists
	165	if(EXISTS "${ALIEN}/api/lib")
	166	link_directories(${ALIEN}/api/lib)
	167	endif()
	168
	169	# include for AliEn
	170	if(EXISTS "${ALIEN}/include")
	171	include_directories(SYSTEM ${ALIEN}/include)
	172	endif()
	173
	174	# api/include always exists
	175	if(EXISTS "${ALIEN}/api/include")
	176	include_directories(SYSTEM ${ALIEN}/api/include)
	177	endif()
	178
	179	set(ROOT_HASALIEN TRUE)
	180	else(ALIEN)
	181	message(FATAL_ERROR "ROOT was built with AliEn support but no AliEn installation found. Please set \"ALIEN\" to point to your AliEn installation.")
	182	endif(ALIEN)
4d31eb1c	183	else()
4d31eb1c	184	set(ROOT_HASALIEN FALSE)
b168bfa8	185	endif()
b168bfa8	186	endif(ROOT_HASALIEN)
3c517eb8	187
a0f34e87	188	# Checking for xml support
fffaf6a5	189	execute_process(COMMAND ${ROOT_CONFIG} --has-xml OUTPUT_VARIABLE ROOT_HASXML ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
fffaf6a5	190	if(error)
7345d84f	191	message(FATAL_ERROR "Error checking if ROOT was built with xml support: ${error}")
fffaf6a5	192	endif(error)
b168bfa8	193
	194	# if defined
	195	if(ROOT_HASXML)
6646d571	196	string(STRIP "${ROOT_HASXML}" ROOT_HASXML)
b168bfa8	197	if(ROOT_HASXML STREQUAL "yes")
b168bfa8	198	add_definitions(-DWITHXML)
4d31eb1c	199	set(ROOT_HASXML TRUE)
	200	else()
	201	set(ROOT_HASXML FALSE)
b168bfa8	202	endif()
b168bfa8	203	endif(ROOT_HASXML)
1dbe1076	204
aac9c09b	205	# Checking for OpenGL support
	206	execute_process(COMMAND ${ROOT_CONFIG} --has-opengl OUTPUT_VARIABLE ROOT_HASOPENGL ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
	207	if(error)
7345d84f	208	message(FATAL_ERROR "Error checking if ROOT was built with OpenGL support: ${error}")
aac9c09b	209	endif(error)
4d31eb1c	210
4d31eb1c	211	if(ROOT_HASOPENGL)
6646d571	212	string(STRIP "${ROOT_HASOPENGL}" ROOT_HASOPENGL)
4d31eb1c	213	if(ROOT_HASOPENGL STREQUAL "yes")
	214	set(ROOT_HASOPENGL TRUE)
	215	else()
	216	set(ROOT_HASOPENGL FALSE)
	217	endif()
	218	endif()
	219
1dbe1076	220
aac9c09b	221	# Checking for fortran compiler
1dbe1076	222	execute_process(COMMAND ${ROOT_CONFIG} --f77 OUTPUT_VARIABLE ROOT_FORTRAN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
	223	if(error)
	224	message(FATAL_ERROR "Error checking ROOT fortran compiler: ${error}")
	225	endif(error)
6646d571	226	string(STRIP "${ROOT_FORTRAN}" ROOT_FORTRAN)
3c517eb8	227
aff16a25	228	# adding the libraries and the inc dir
aff16a25	229	link_directories(${ROOT_LIBDIR})
59d22158	230	include_directories(SYSTEM ${ROOT_INCLUDE_DIR})
fffaf6a5	231	set(ROOT_FOUND TRUE)
f82bfa66	232
	233	# Workaround misssing XML, VMC, Minuit from ROOT static library
	234	# Also adding libzma.a libfreetype.a libpcre.a
	235	# To be removed where https://sft.its.cern.ch/jira/browse/ROOT-6904 issue is fixed
	236	if(ALIROOT_STATIC)
	237	message(WARNING "AliRoot static build enabled! libRootExtra.a will be created.\nPlease remove when ROOT https://sft.its.cern.ch/jira/browse/ROOT-6904 issue is fixed")
	238
7345d84f	239	# ROOT needs xml2 but it is not built with the static version so we have to add it
f82bfa66	240	find_package(LibXml2)
	241
	242	if(LIBXML2_FOUND)
	243
	244	# adding SSL
	245	find_package(OpenSSL)
	246
	247	if(OPENSSL_FOUND)
	248	file(GLOB _extraroot "${ROOTSYS}/montercarlo/vmc/src/.o" "${ROOTSYS}/tree/treeplayer/src/.o" "${ROOTSYS}/io/xmlparser/src/.o" "${ROOTSYS}/math/minuit2/src/.o")
	249	add_library(RootExtra STATIC ${_extraroot})
	250	set_target_properties(RootExtra PROPERTIES COMPILE_FLAGS "${LIBXML2_INCLUDE_DIR} ${OPENSSL_INCLUDE_DIR}")
	251	set_target_properties(RootExtra PROPERTIES LINKER_LANGUAGE CXX)
	252	target_link_libraries(RootExtra ${ROOT_LIBDIR}/libfreetype.a ${ROOT_LIBDIR}/libpcre.a ${ROOT_LIBDIR}/liblzma.a ${LIBXML2_LIBRARIES} ${OPENSSL_LIBRARIES})
	253	else()
	254	message(FATAL_ERROR "OpenSSL not found. Coould not generate the static RootExtra. Please install Openssl")
	255	endif()
	256	else()
	257	message(FATAL_ERROR "libxml2 not found. Can not generate the static RootExtra. Please install libxml2")
	258	endif()
	259	endif(ALIROOT_STATIC)
6db31708	260	else()
fffaf6a5	261	message(FATAL_ERROR "ROOT installation not found! Please point to the ROOT installation using -DROOTSYS=ROOT_INSTALL_DIR.")
6646d571	262	endif(ROOTSYS)