JETAN module
[u/mrichter/AliRoot.git] / cmake / FindROOT.cmake
CommitLineData
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
27# - ROOT_LIBDIR - full path to ROOT library folder
28# - ROOT_LIBRARIES - libraries needed for the package to be used
a0f34e87 29# - ROOT_GLIBRARIES - regular + GUI ROOT libraries + path to be used during linking
fffaf6a5 30# - ROOT_INCLUDE_DIRS - full path to ROOT include folder
fffaf6a5 31# - ROOT_HASALIEN - ROOT was built with AliEn support
aac9c09b 32# - ROOT_HASOPENGL - ROOT was built with OpenGL support
fffaf6a5 33# - ROOT_HASXML - ROOT was built with XML support
1dbe1076 34# - ROOT_FORTRAN - fortran compiler
fffaf6a5 35
36799128 36set(ROOT_FOUND FALSE)
37
fffaf6a5 38if(ROOTSYS)
39 message(STATUS "Checking for a proper ROOT installation in ${ROOTSYS}.")
40
41 # Setting the LD_LiBRARY_PATH to point to ROOT lib folder
42 set(ROOT_LIBDIR ${ROOTSYS}/lib)
43 set(ROOT_INCLUDE_DIRS ${ROOTSYS}/include)
44
45 # Check for root-config scripts
46 find_program(ROOT_CONFIG NAMES root-config PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
47
36799128 48 if(NOT ROOT_CONFIG)
fffaf6a5 49 message(FATAL_ERROR "Could not find root-config script.")
36799128 50 endif(NOT ROOT_CONFIG)
3c517eb8 51
0224bae4 52 # Check for rlibmap
53 find_program(ROOT_LIBMAP NAMES rlibmap PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
54 if(ROOT_LIBMAP)
55 message(STATUS "Found ${ROOT_LIBMAP}")
56 else()
57 message(FATAL_ERROR "Could not find rlibmap executable.")
58 endif(ROOT_LIBMAP)
59
fffaf6a5 60 # Check for rootcint
61 find_program(ROOT_CINT NAMES rootcint PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
62 if(ROOT_CINT)
63 message(STATUS "Found ${ROOT_CINT}")
64 else()
65 message(FATAL_ERROR "Could not find rootcint executable.")
66 endif(ROOT_CINT)
67
68 # Checking ROOT version
69 execute_process(COMMAND ${ROOT_CONFIG} --version OUTPUT_VARIABLE ROOT_VERSION ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
70 if(error)
71 message(FATAL_ERROR "Error retrieving ROOT version : ${error}")
72 endif(error)
a0f34e87 73 string(STRIP ${ROOT_VERSION} ROOT_VERSION)
3c517eb8 74
fffaf6a5 75 # Extract major, minor, and patch versions from
76 string(REGEX REPLACE "^([0-9]+)\\.[0-9][0-9]+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MAJOR "${ROOT_VERSION}")
77 string(REGEX REPLACE "^[0-9]+\\.([0-9][0-9])+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MINOR "${ROOT_VERSION}")
78 string(REGEX REPLACE "^[0-9]+\\.[0-9][0-9]+\\/([0-9][0-9]+).*" "\\1" ROOT_VERSION_PATCH "${ROOT_VERSION}")
79 message(STATUS "Found ROOT version ${ROOT_VERSION_MAJOR}.${ROOT_VERSION_MINOR}.${ROOT_VERSION_PATCH}")
80
81 # Print ROOT features
82 execute_process(COMMAND ${ROOT_CONFIG} --features OUTPUT_VARIABLE ROOT_FEATURES ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
83 if(error)
84 message(FATAL_ERROR "Error retrieving ROOT features : ${error}")
85 else()
86 message(STATUS "ROOT was build with the following features: ${ROOT_FEATURES}")
87 endif(error)
a0f34e87 88 string(STRIP ${ROOT_FEATURES} ROOT_FEATURES)
3c517eb8 89
fffaf6a5 90 # Checking for ROOT libdir
91 execute_process(COMMAND ${ROOT_CONFIG} --libdir OUTPUT_VARIABLE ROOT_LIBDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
92 if(error)
93 message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
94 endif(error)
a0f34e87 95 string(STRIP ${ROOT_LIBDIR} ROOT_LIBDIR)
fffaf6a5 96
0224bae4 97 # Checking for ROOT libs
a0f34e87 98 execute_process(COMMAND ${ROOT_CONFIG} --noldflags --libs OUTPUT_VARIABLE ROOT_LIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
0224bae4 99 if(error)
100 message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
101 endif(error)
a0f34e87 102 string(STRIP ${ROOT_LIBS} ROOT_LIBS)
3c517eb8 103
a0f34e87 104 foreach(lib ${ROOT_LIBS})
105 string(REPLACE "-rdynamic" "" new_lib ${lib})
106 string(REPLACE "-l" "" lib ${new_lib})
107 set(ROOT_LIBRARIES ${ROOT_LIBRARIES} ${lib})
108 endforeach()
109 string(STRIP ${ROOT_LIBRARIES} ROOT_LIBRARIES)
110 separate_arguments(ROOT_LIBRARIES)
3c517eb8 111
fffaf6a5 112 # Checking for ROOT incdir
113 execute_process(COMMAND ${ROOT_CONFIG} --incdir OUTPUT_VARIABLE ROOT_INCDIR ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
114 if(error)
115 message(FATAL_ERROR "Error retrieving ROOT incdir: ${error}")
116 endif(error)
a0f34e87 117 string(STRIP ${ROOT_INCDIR} ROOT_INCDIR)
ccd3054e 118 set(ROOT_INCLUDE_DIRS ${ROOT_INCDIR})
3c517eb8 119
fffaf6a5 120 # Checking for glibs
a0f34e87 121 execute_process(COMMAND ${ROOT_CONFIG} --noldflags --glibs OUTPUT_VARIABLE ROOT_GLIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
fffaf6a5 122 if(error)
123 message(FATAL_ERROR "Error retrieving ROOT glibs: ${error}")
124 endif(error)
125
126 # Checking for glibs
a0f34e87 127 string(STRIP ${ROOT_GLIBS} ROOT_GLIBS)
128
129 foreach(lib ${ROOT_GLIBS})
130 string(REPLACE "-rdynamic" "" new_lib "${lib}")
131 string(REPLACE "-l" "" lib "${new_lib}")
132 set(ROOT_GLIBRARIES ${ROOT_GLIBRARIES} ${lib})
133 endforeach()
134 string(STRIP ${ROOT_GLIBRARIES} ROOT_GLIBRARIES)
135 separate_arguments(ROOT_GLIBRARIES)
3c517eb8 136
a0f34e87 137 # Checking for AliEn support
fffaf6a5 138 execute_process(COMMAND ${ROOT_CONFIG} --has-alien OUTPUT_VARIABLE ROOT_HASALIEN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
139 if(error)
140 message(FATAL_ERROR "Error checking if ROOT was build with AliEn support: ${error}")
141 endif(error)
a0f34e87 142 string(STRIP ${ROOT_HASALIEN} ROOT_HASALIEN)
3c517eb8 143
a0f34e87 144 # Checking for xml support
fffaf6a5 145 execute_process(COMMAND ${ROOT_CONFIG} --has-xml OUTPUT_VARIABLE ROOT_HASXML ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
146 if(error)
147 message(FATAL_ERROR "Error checking if ROOT was build with xml support: ${error}")
148 endif(error)
a0f34e87 149 string(STRIP ${ROOT_HASXML} ROOT_HASXML)
1dbe1076 150
aac9c09b 151 # Checking for OpenGL support
152 execute_process(COMMAND ${ROOT_CONFIG} --has-opengl OUTPUT_VARIABLE ROOT_HASOPENGL ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
153 if(error)
154 message(FATAL_ERROR "Error checking if ROOT was build with OpenGL support: ${error}")
155 endif(error)
156 string(STRIP ${ROOT_HASOPENGL} ROOT_HASOPENGL)
1dbe1076 157
aac9c09b 158 # Checking for fortran compiler
1dbe1076 159 execute_process(COMMAND ${ROOT_CONFIG} --f77 OUTPUT_VARIABLE ROOT_FORTRAN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
160 if(error)
161 message(FATAL_ERROR "Error checking ROOT fortran compiler: ${error}")
162 endif(error)
163 string(STRIP ${ROOT_FORTRAN} ROOT_FORTRAN)
3c517eb8 164
fffaf6a5 165 set(ROOT_FOUND TRUE)
6db31708 166else()
fffaf6a5 167 message(FATAL_ERROR "ROOT installation not found! Please point to the ROOT installation using -DROOTSYS=ROOT_INSTALL_DIR.")
168endif(ROOTSYS)