Correct value for ROOT_HAS*
[u/mrichter/AliRoot.git] / cmake / FindROOT.cmake
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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
25# - ROOT_LIBMAP - path to rlibmap executable
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
29# - ROOT_GLIBRARIES - regular + GUI ROOT libraries + path to be used during linking
30# - ROOT_INCLUDE_DIR - full path to ROOT include folder
31# - ROOT_HASALIEN - ROOT was built with AliEn support
32# - ROOT_HASOPENGL - ROOT was built with OpenGL support
33# - ROOT_HASXML - ROOT was built with XML support
34# - ROOT_FORTRAN - fortran compiler
35
36set(ROOT_FOUND FALSE)
37
38if(ROOTSYS)
39 message(STATUS "Checking for a proper ROOT installation in ${ROOTSYS}.")
40
41 # Setting defaults
42 set(ROOT_LIBDIR ${ROOTSYS}/lib)
43 set(ROOT_INCLUDE_DIR ${ROOTSYS}/include)
44
45 # Check for root-config scripts
46 find_program(ROOT_CONFIG NAMES root-config PATHS ${ROOTSYS}/bin NO_DEFAULT_PATH)
47
48 if(NOT ROOT_CONFIG)
49 message(FATAL_ERROR "Could not find root-config script.")
50 endif(NOT ROOT_CONFIG)
51
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
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)
73 string(STRIP ${ROOT_VERSION} ROOT_VERSION)
74
75 # Extract major, minor, and patch versions from
76 string(REGEX REPLACE "^([0-9]+)\\.[0-9][0-9]+\\/[0-9][0-9]+.*" "\\1" ROOT_VERSION_MAJOR "${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)
88 string(STRIP ${ROOT_FEATURES} ROOT_FEATURES)
89
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)
95 string(STRIP ${ROOT_LIBDIR} ROOT_LIBDIR)
96
97 # Checking for ROOT libs
98 execute_process(COMMAND ${ROOT_CONFIG} --noldflags --libs OUTPUT_VARIABLE ROOT_LIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
99 if(error)
100 message(FATAL_ERROR "Error retrieving ROOT libdir: ${error}")
101 endif(error)
102 string(STRIP ${ROOT_LIBS} ROOT_LIBS)
103
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)
111
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)
117 string(STRIP ${ROOT_INCDIR} ROOT_INCDIR)
118 set(ROOT_INCLUDE_DIR ${ROOT_INCDIR})
119
120 # Checking for glibs
121 execute_process(COMMAND ${ROOT_CONFIG} --noldflags --glibs OUTPUT_VARIABLE ROOT_GLIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
122 if(error)
123 message(FATAL_ERROR "Error retrieving ROOT glibs: ${error}")
124 endif(error)
125
126 # Checking for glibs
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)
136
137 # Checking for AliEn support
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)
142
143 #if defined
144 if(ROOT_HASALIEN)
145 string(STRIP ${ROOT_HASALIEN} ROOT_HASALIEN)
146 if(ROOT_HASALIEN STREQUAL "yes")
147 add_definitions(-DWITHALIEN)
148 set(ROOT_HASALIEN TRUE)
149 else()
150 set(ROOT_HASALIEN FALSE)
151 endif()
152 endif(ROOT_HASALIEN)
153
154 # Checking for xml support
155 execute_process(COMMAND ${ROOT_CONFIG} --has-xml OUTPUT_VARIABLE ROOT_HASXML ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
156 if(error)
157 message(FATAL_ERROR "Error checking if ROOT was build with xml support: ${error}")
158 endif(error)
159
160 # if defined
161 if(ROOT_HASXML)
162 string(STRIP ${ROOT_HASXML} ROOT_HASXML)
163 if(ROOT_HASXML STREQUAL "yes")
164 add_definitions(-DWITHXML)
165 set(ROOT_HASXML TRUE)
166 else()
167 set(ROOT_HASXML FALSE)
168 endif()
169 endif(ROOT_HASXML)
170
171 # Checking for OpenGL support
172 execute_process(COMMAND ${ROOT_CONFIG} --has-opengl OUTPUT_VARIABLE ROOT_HASOPENGL ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
173 if(error)
174 message(FATAL_ERROR "Error checking if ROOT was build with OpenGL support: ${error}")
175 endif(error)
176
177 if(ROOT_HASOPENGL)
178 string(STRIP ${ROOT_HASOPENGL} ROOT_HASOPENGL)
179 if(ROOT_HASOPENGL STREQUAL "yes")
180 set(ROOT_HASOPENGL TRUE)
181 else()
182 set(ROOT_HASOPENGL FALSE)
183 endif()
184 endif()
185
186
187 # Checking for fortran compiler
188 execute_process(COMMAND ${ROOT_CONFIG} --f77 OUTPUT_VARIABLE ROOT_FORTRAN ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
189 if(error)
190 message(FATAL_ERROR "Error checking ROOT fortran compiler: ${error}")
191 endif(error)
192 string(STRIP ${ROOT_FORTRAN} ROOT_FORTRAN)
193
194 # adding the libraries and the inc dir
195 link_directories(${ROOT_LIBDIR})
196 include_directories(${ROOT_INCLUDE_DIR})
197 set(ROOT_FOUND TRUE)
198
199 # Workaround misssing XML, VMC, Minuit from ROOT static library
200 # Also adding libzma.a libfreetype.a libpcre.a
201 # To be removed where https://sft.its.cern.ch/jira/browse/ROOT-6904 issue is fixed
202 if(ALIROOT_STATIC)
203 message(WARNING "AliRoot static build enabled! libRootExtra.a will be created.\nPlease remove when ROOT https://sft.its.cern.ch/jira/browse/ROOT-6904 issue is fixed")
204
205 # ROOT needs xml2 but it is not build with the static version so we have to add it
206 find_package(LibXml2)
207
208 if(LIBXML2_FOUND)
209
210 # adding SSL
211 find_package(OpenSSL)
212
213 if(OPENSSL_FOUND)
214 file(GLOB _extraroot "${ROOTSYS}/montercarlo/vmc/src/*.o" "${ROOTSYS}/tree/treeplayer/src/*.o" "${ROOTSYS}/io/xmlparser/src/*.o" "${ROOTSYS}/math/minuit2/src/*.o")
215 add_library(RootExtra STATIC ${_extraroot})
216 set_target_properties(RootExtra PROPERTIES COMPILE_FLAGS "${LIBXML2_INCLUDE_DIR} ${OPENSSL_INCLUDE_DIR}")
217 set_target_properties(RootExtra PROPERTIES LINKER_LANGUAGE CXX)
218 target_link_libraries(RootExtra ${ROOT_LIBDIR}/libfreetype.a ${ROOT_LIBDIR}/libpcre.a ${ROOT_LIBDIR}/liblzma.a ${LIBXML2_LIBRARIES} ${OPENSSL_LIBRARIES})
219 else()
220 message(FATAL_ERROR "OpenSSL not found. Coould not generate the static RootExtra. Please install Openssl")
221 endif()
222 else()
223 message(FATAL_ERROR "libxml2 not found. Can not generate the static RootExtra. Please install libxml2")
224 endif()
225 endif(ALIROOT_STATIC)
226else()
227 message(FATAL_ERROR "ROOT installation not found! Please point to the ROOT installation using -DROOTSYS=ROOT_INSTALL_DIR.")
228endif(ROOTSYS)