summaryrefslogtreecommitdiffstats
path: root/Modules/FindRuby.cmake
blob: 45e2da61a25ef83c04775ec67994db1de4344cbe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
# - Find Ruby
# This module finds if Ruby is installed and determines where the include files
# and libraries are. Ruby 1.8 and 1.9 are supported. The minimum required version 
# specified in the find_package() command is honored.
# It also determines what the name of the library is. This
# code sets the following variables:
#
#  RUBY_EXECUTABLE   = full path to the ruby binary
#  RUBY_INCLUDE_DIRS = include dirs to be used when using the ruby library
#  RUBY_LIBRARY      = full path to the ruby library
#  RUBY_VERSION      = the version of ruby which was found, e.g. "1.8.7"
#  RUBY_FOUND        = set to true if ruby ws found successfully
#
#  RUBY_INCLUDE_PATH = same as RUBY_INCLUDE_DIRS, only provided for compatibility reasons, don't use it

#=============================================================================
# Copyright 2004-2009 Kitware, Inc.
# Copyright 2008-2009 Alexander Neundorf <neundorf@kde.org>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
#  License text for the above reference.)

#   RUBY_ARCHDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"archdir"@:>@)'`
#   RUBY_SITEARCHDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"sitearchdir"@:>@)'`
#   RUBY_SITEDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"sitelibdir"@:>@)'`
#   RUBY_LIBDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"libdir"@:>@)'`
#   RUBY_LIBRUBYARG=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"LIBRUBYARG_SHARED"@:>@)'`

# uncomment the following line to get debug output for this file
# SET(_RUBY_DEBUG_OUTPUT TRUE)

# Determine the list of possible names of the ruby executable depending
# on which version of ruby is required
SET(_RUBY_POSSIBLE_EXECUTABLE_NAMES ruby)

# if 1.9 is required, don't look for ruby18 and ruby1.8, default to version 1.8
IF(Ruby_FIND_VERSION_MAJOR  AND  Ruby_FIND_VERSION_MINOR)
   SET(Ruby_FIND_VERSION_SHORT_NODOT "${Ruby_FIND_VERSION_MAJOR}${RUBY_FIND_VERSION_MINOR}")
ELSE(Ruby_FIND_VERSION_MAJOR  AND  Ruby_FIND_VERSION_MINOR)
   SET(Ruby_FIND_VERSION_SHORT_NODOT "18")
ENDIF(Ruby_FIND_VERSION_MAJOR  AND  Ruby_FIND_VERSION_MINOR)

SET(_RUBY_POSSIBLE_EXECUTABLE_NAMES ${_RUBY_POSSIBLE_EXECUTABLE_NAMES} ruby1.9 ruby19)

# if we want a version below 1.9, also look for ruby 1.8
IF("${Ruby_FIND_VERSION_SHORT_NODOT}" VERSION_LESS "19")
   SET(_RUBY_POSSIBLE_EXECUTABLE_NAMES ${_RUBY_POSSIBLE_EXECUTABLE_NAMES} ruby1.8 ruby18)
ENDIF("${Ruby_FIND_VERSION_SHORT_NODOT}" VERSION_LESS "19")

FIND_PROGRAM(RUBY_EXECUTABLE NAMES ${_RUBY_POSSIBLE_EXECUTABLE_NAMES})


IF(RUBY_EXECUTABLE  AND NOT  RUBY_MAJOR_VERSION)
  # query the ruby version
   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['MAJOR']"
      OUTPUT_VARIABLE RUBY_VERSION_MAJOR)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['MINOR']"
      OUTPUT_VARIABLE RUBY_VERSION_MINOR)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['TEENY']"
      OUTPUT_VARIABLE RUBY_VERSION_PATCH)

   # query the different directories
   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['archdir']"
      OUTPUT_VARIABLE RUBY_ARCH_DIR)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['arch']"
      OUTPUT_VARIABLE RUBY_ARCH)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['rubyhdrdir']"
      OUTPUT_VARIABLE RUBY_HDR_DIR)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['libdir']"
      OUTPUT_VARIABLE RUBY_POSSIBLE_LIB_DIR)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['rubylibdir']"
      OUTPUT_VARIABLE RUBY_RUBY_LIB_DIR)

   # site_ruby
   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['sitearchdir']"
      OUTPUT_VARIABLE RUBY_SITEARCH_DIR)

   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['sitelibdir']"
      OUTPUT_VARIABLE RUBY_SITELIB_DIR)

   # vendor_ruby available ?
   EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r vendor-specific -e "print 'true'"
      OUTPUT_VARIABLE RUBY_HAS_VENDOR_RUBY  ERROR_QUIET)

   IF(RUBY_HAS_VENDOR_RUBY)
      EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['vendorlibdir']"
         OUTPUT_VARIABLE RUBY_VENDORLIB_DIR)

      EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['vendorarchdir']"
         OUTPUT_VARIABLE RUBY_VENDORARCH_DIR)
   ENDIF(RUBY_HAS_VENDOR_RUBY)

   # save the results in the cache so we don't have to run ruby the next time again
   SET(RUBY_VERSION_MAJOR    ${RUBY_VERSION_MAJOR}    CACHE PATH "The Ruby major version" FORCE)
   SET(RUBY_VERSION_MINOR    ${RUBY_VERSION_MINOR}    CACHE PATH "The Ruby minor version" FORCE)
   SET(RUBY_VERSION_PATCH    ${RUBY_VERSION_PATCH}    CACHE PATH "The Ruby patch version" FORCE)
   SET(RUBY_ARCH_DIR         ${RUBY_ARCH_DIR}         CACHE PATH "The Ruby arch dir" FORCE)
   SET(RUBY_HDR_DIR          ${RUBY_HDR_DIR}          CACHE PATH "The Ruby header dir (1.9)" FORCE)
   SET(RUBY_POSSIBLE_LIB_DIR ${RUBY_POSSIBLE_LIB_DIR} CACHE PATH "The Ruby lib dir" FORCE)
   SET(RUBY_RUBY_LIB_DIR     ${RUBY_RUBY_LIB_DIR}     CACHE PATH "The Ruby ruby-lib dir" FORCE)
   SET(RUBY_SITEARCH_DIR     ${RUBY_SITEARCH_DIR}     CACHE PATH "The Ruby site arch dir" FORCE)
   SET(RUBY_SITELIB_DIR      ${RUBY_SITELIB_DIR}      CACHE PATH "The Ruby site lib dir" FORCE)
   SET(RUBY_HAS_VENDOR_RUBY  ${RUBY_HAS_VENDOR_RUBY}  CACHE BOOL "Vendor Ruby is available" FORCE)
   SET(RUBY_VENDORARCH_DIR   ${RUBY_VENDORARCH_DIR}   CACHE PATH "The Ruby vendor arch dir" FORCE)
   SET(RUBY_VENDORLIB_DIR    ${RUBY_VENDORLIB_DIR}    CACHE PATH "The Ruby vendor lib dir" FORCE)

   MARK_AS_ADVANCED(
     RUBY_ARCH_DIR
     RUBY_ARCH
     RUBY_HDR_DIR
     RUBY_POSSIBLE_LIB_DIR
     RUBY_RUBY_LIB_DIR
     RUBY_SITEARCH_DIR
     RUBY_SITELIB_DIR
     RUBY_HAS_VENDOR_RUBY
     RUBY_VENDORARCH_DIR
     RUBY_VENDORLIB_DIR
     RUBY_VERSION_MAJOR
     RUBY_VERSION_MINOR
     RUBY_VERSION_PATCH
     )
ENDIF(RUBY_EXECUTABLE  AND NOT  RUBY_MAJOR_VERSION)

# In case RUBY_EXECUTABLE could not be executed (e.g. cross compiling) 
# try to detect which version we found. This is not too good.
IF(NOT RUBY_VERSION_MAJOR)
   # by default assume 1.8.0
   SET(RUBY_VERSION_MAJOR 1)
   SET(RUBY_VERSION_MINOR 8)
   SET(RUBY_VERSION_PATCH 0)
   # check whether we found 1.9.x
   IF(${RUBY_EXECUTABLE} MATCHES "ruby1.?9"  OR  RUBY_HDR_DIR)
      SET(RUBY_VERSION_MAJOR 1)
      SET(RUBY_VERSION_MINOR 9)
   ENDIF(${RUBY_EXECUTABLE} MATCHES "ruby1.?9"  OR  RUBY_HDR_DIR)
ENDIF(NOT RUBY_VERSION_MAJOR)


SET(RUBY_VERSION "${RUBY_VERSION_MAJOR}.${RUBY_VERSION_MINOR}.${RUBY_VERSION_PATCH}")
SET(_RUBY_VERSION_SHORT "${RUBY_VERSION_MAJOR}.${RUBY_VERSION_MINOR}")
SET(_RUBY_VERSION_SHORT_NODOT "${RUBY_VERSION_MAJOR}${RUBY_VERSION_MINOR}")
SET(_RUBY_NODOT_VERSION "${RUBY_VERSION_MAJOR}${RUBY_VERSION_MINOR}${RUBY_VERSION_PATCH}")

# Now we know which version we found
IF(Ruby_FIND_VERSION)
   IF(${RUBY_VERSION}  VERSION_LESS  ${Ruby_FIND_VERSION})
      # force running ruby the next time again
      SET(RUBY_VERSION_MAJOR    ""    CACHE PATH "The Ruby major version" FORCE)
      IF(Ruby_FIND_REQUIRED)
         MESSAGE(FATAL_ERROR "Ruby version ${Ruby_FIND_VERSION} required, but only version ${RUBY_VERSION} found.")
      ELSE(Ruby_FIND_REQUIRED)
         IF(NOT Ruby_FIND_QUIETLY)
            MESSAGE(STATUS "Ruby version ${Ruby_FIND_VERSION} required, but only version ${RUBY_VERSION} found.")
         ENDIF(NOT Ruby_FIND_QUIETLY)
         RETURN()
      ENDIF(Ruby_FIND_REQUIRED)
   ENDIF(${RUBY_VERSION}  VERSION_LESS  ${Ruby_FIND_VERSION})
ENDIF(Ruby_FIND_VERSION)

FIND_PATH(RUBY_INCLUDE_DIR
   NAMES ruby.h
   HINTS
   ${RUBY_HDR_DIR}
   ${RUBY_ARCH_DIR}
   /usr/lib/ruby/${_RUBY_VERSION_SHORT}/i586-linux-gnu/ )

SET(RUBY_INCLUDE_DIRS ${RUBY_INCLUDE_DIR} )

# if ruby > 1.8 is required or if ruby > 1.8 was found, search for the config.h dir
IF( ${Ruby_FIND_VERSION_SHORT_NODOT} GREATER 18  OR  ${_RUBY_VERSION_SHORT_NODOT} GREATER 18  OR  RUBY_HDR_DIR)
   FIND_PATH(RUBY_CONFIG_INCLUDE_DIR
     NAMES ruby/config.h  config.h
     HINTS 
     ${RUBY_HDR_DIR}/${RUBY_ARCH}
     ${RUBY_ARCH_DIR} 
     )

   SET(RUBY_INCLUDE_DIRS ${RUBY_INCLUDE_DIRS} ${RUBY_CONFIG_INCLUDE_DIR} )
ENDIF( ${Ruby_FIND_VERSION_SHORT_NODOT} GREATER 18  OR  ${_RUBY_VERSION_SHORT_NODOT} GREATER 18  OR  RUBY_HDR_DIR)


# Determine the list of possible names for the ruby library
SET(_RUBY_POSSIBLE_LIB_NAMES ruby ruby-static ruby${_RUBY_VERSION_SHORT})

IF(WIN32)
   SET( _RUBY_MSVC_RUNTIME "" )
   IF( MSVC60 )
     SET( _RUBY_MSVC_RUNTIME "60" )
   ENDIF( MSVC60 )
   IF( MSVC70 )
     SET( _RUBY_MSVC_RUNTIME "70" )
   ENDIF( MSVC70 )
   IF( MSVC71 )
     SET( _RUBY_MSVC_RUNTIME "71" )
   ENDIF( MSVC71 )
   IF( MSVC80 )
     SET( _RUBY_MSVC_RUNTIME "80" )
   ENDIF( MSVC80 )
   IF( MSVC90 )
     SET( _RUBY_MSVC_RUNTIME "90" )
   ENDIF( MSVC90 )

   LIST(APPEND _RUBY_POSSIBLE_LIB_NAMES
               "msvcr${_RUBY_MSVC_RUNTIME}-ruby${_RUBY_NODOT_VERSION}"
               "msvcr${_RUBY_MSVC_RUNTIME}-ruby${_RUBY_NODOT_VERSION}-static" 
               "msvcrt-ruby${_RUBY_NODOT_VERSION}"
               "msvcrt-ruby${_RUBY_NODOT_VERSION}-static" )
ENDIF(WIN32)

FIND_LIBRARY(RUBY_LIBRARY NAMES ${_RUBY_POSSIBLE_LIB_NAMES} HINTS ${RUBY_POSSIBLE_LIB_DIR} )

INCLUDE(FindPackageHandleStandardArgs)
SET(_RUBY_REQUIRED_VARS RUBY_EXECUTABLE RUBY_INCLUDE_DIR RUBY_LIBRARY)
IF(_RUBY_VERSION_SHORT_NODOT GREATER 18)
   LIST(APPEND _RUBY_REQUIRED_VARS RUBY_CONFIG_INCLUDE_DIR)
ENDIF(_RUBY_VERSION_SHORT_NODOT GREATER 18)

IF(_RUBY_DEBUG_OUTPUT)
   MESSAGE(STATUS "--------FindRuby.cmake debug------------")
   MESSAGE(STATUS "_RUBY_POSSIBLE_EXECUTABLE_NAMES: ${_RUBY_POSSIBLE_EXECUTABLE_NAMES}")
   MESSAGE(STATUS "_RUBY_POSSIBLE_LIB_NAMES: ${_RUBY_POSSIBLE_LIB_NAMES}")
   MESSAGE(STATUS "RUBY_ARCH_DIR: ${RUBY_ARCH_DIR}")
   MESSAGE(STATUS "RUBY_HDR_DIR: ${RUBY_HDR_DIR}")
   MESSAGE(STATUS "RUBY_POSSIBLE_LIB_DIR: ${RUBY_POSSIBLE_LIB_DIR}")
   MESSAGE(STATUS "Found RUBY_VERSION: \"${RUBY_VERSION}\" , short: \"${_RUBY_VERSION_SHORT}\", nodot: \"${_RUBY_VERSION_SHORT_NODOT}\"")
   MESSAGE(STATUS "_RUBY_REQUIRED_VARS: ${_RUBY_REQUIRED_VARS}")
   MESSAGE(STATUS "--------------------")
ENDIF(_RUBY_DEBUG_OUTPUT)

FIND_PACKAGE_HANDLE_STANDARD_ARGS(Ruby  DEFAULT_MSG  ${_RUBY_REQUIRED_VARS})

MARK_AS_ADVANCED(
  RUBY_EXECUTABLE
  RUBY_LIBRARY
  RUBY_INCLUDE_DIR
  RUBY_CONFIG_INCLUDE_DIR
  )

# Set some variables for compatibility with previous version of this file
SET(RUBY_POSSIBLE_LIB_PATH ${RUBY_POSSIBLE_LIB_DIR})
SET(RUBY_RUBY_LIB_PATH ${RUBY_RUBY_LIB_DIR})
SET(RUBY_INCLUDE_PATH ${RUBY_INCLUDE_DIRS})