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
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(<name> ... )
#
# This function is intended to be used in FindXXX.cmake modules files.
# It handles the REQUIRED, QUIET and version-related arguments to FIND_PACKAGE().
# It also sets the <UPPERCASED_NAME>_FOUND variable.
# The package is considered found if all variables <var1>... listed contain
# valid results, e.g. valid filepaths.
#
# There are two modes of this function. The first argument in both modes is
# the name of the Find-module where it is called (in original casing).
#
# The first simple mode looks like this:
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(<name> (DEFAULT_MSG|"Custom failure message") <var1>...<varN> )
# If the variables <var1> to <varN> are all valid, then <UPPERCASED_NAME>_FOUND
# will be set to TRUE.
# If DEFAULT_MSG is given as second argument, then the function will generate
# itself useful success and error messages. You can also supply a custom error message
# for the failure case. This is not recommended.
#
# The second mode is more powerful and also supports version checking:
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME [REQUIRED_VARS <var1>...<varN>]
# [VERSION_VAR <versionvar>
# [CONFIG_MODE]
# [FAIL_MESSAGE "Custom failure message"] )
#
# As above, if <var1> through <varN> are all valid, <UPPERCASED_NAME>_FOUND
# will be set to TRUE.
# After REQUIRED_VARS the variables which are required for this package are listed.
# Following VERSION_VAR the name of the variable can be specified which holds
# the version of the package which has been found. If this is done, this version
# will be checked against the (potentially) specified required version used
# in the find_package() call. The EXACT keyword is also handled. The default
# messages include information about the required version and the version
# which has been actually found, both if the version is ok or not.
# Use the option CONFIG_MODE if your FindXXX.cmake module is a wrapper for
# a find_package(... NO_MODULE) call, in this case all the information
# provided by the config-mode of find_package() will be evaluated
# automatically.
# Via FAIL_MESSAGE a custom failure message can be specified, if this is not
# used, the default message will be displayed.
#
# Example for mode 1:
#
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR)
#
# LibXml2 is considered to be found, if both LIBXML2_LIBRARY and
# LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.
# If it is not found and REQUIRED was used, it fails with FATAL_ERROR,
# independent whether QUIET was used or not.
# If it is found, success will be reported, including the content of <var1>.
# On repeated Cmake runs, the same message won't be printed again.
#
# Example for mode 2:
#
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(BISON REQUIRED_VARS BISON_EXECUTABLE
# VERSION_VAR BISON_VERSION)
# In this case, BISON is considered to be found if the variable(s) listed
# after REQUIRED_VAR are all valid, i.e. BISON_EXECUTABLE in this case.
# Also the version of BISON will be checked by using the version contained
# in BISON_VERSION.
# Since no FAIL_MESSAGE is given, the default messages will be printed.
#
# Another example for mode 2:
#
# FIND_PACKAGE(Automoc4 QUIET NO_MODULE HINTS /opt/automoc4)
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(Automoc4 CONFIG_MODE)
# In this case, FindAutmoc4.cmake wraps a call to FIND_PACKAGE(Automoc4 NO_MODULE)
# and adds an additional search directory for automoc4.
# The following FIND_PACKAGE_HANDLE_STANDARD_ARGS() call produces a proper
# success/error message.
#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# 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 distribute this file outside of CMake, substitute the full
# License text for the above reference.)
INCLUDE(FindPackageMessage)
INCLUDE(CMakeParseArguments)
# internal helper macro
MACRO(_FPHSA_FAILURE_MESSAGE _msg)
IF (${_NAME}_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "${_msg}")
ELSE (${_NAME}_FIND_REQUIRED)
IF (NOT ${_NAME}_FIND_QUIETLY)
MESSAGE(STATUS "${_msg}")
ENDIF (NOT ${_NAME}_FIND_QUIETLY)
ENDIF (${_NAME}_FIND_REQUIRED)
ENDMACRO(_FPHSA_FAILURE_MESSAGE _msg)
FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FIRST_ARG)
# set up the arguments for CMAKE_PARSE_ARGUMENTS and check whether we are in
# new extended or in the "old" mode:
SET(options CONFIG_MODE)
SET(oneValueArgs FAIL_MESSAGE VERSION_VAR)
SET(multiValueArgs REQUIRED_VARS)
SET(_KEYWORDS_FOR_EXTENDED_MODE ${options} ${oneValueArgs} ${multiValueArgs} )
LIST(FIND _KEYWORDS_FOR_EXTENDED_MODE "${_FIRST_ARG}" INDEX)
IF(${INDEX} EQUAL -1)
SET(FPHSA_FAIL_MESSAGE ${_FIRST_ARG})
SET(FPHSA_REQUIRED_VARS ${ARGN})
SET(FPHSA_VERSION_VAR)
ELSE(${INDEX} EQUAL -1)
CMAKE_PARSE_ARGUMENTS(FPHSA "${options}" "${oneValueArgs}" "${multiValueArgs}" ${_FIRST_ARG} ${ARGN})
IF(FPHSA_UNPARSED_ARGUMENTS)
MESSAGE(FATAL_ERROR "Unknown keywords given to FIND_PACKAGE_HANDLE_STANDARD_ARGS(): \"${FPHSA_UNPARSED_ARGUMENTS}\"")
ENDIF(FPHSA_UNPARSED_ARGUMENTS)
IF(NOT FPHSA_FAIL_MESSAGE)
SET(FPHSA_FAIL_MESSAGE "DEFAULT_MSG")
ENDIF(NOT FPHSA_FAIL_MESSAGE)
ENDIF(${INDEX} EQUAL -1)
# now that we collected all arguments, process them
IF("${FPHSA_FAIL_MESSAGE}" STREQUAL "DEFAULT_MSG")
SET(FPHSA_FAIL_MESSAGE "Could NOT find ${_NAME}")
ENDIF("${FPHSA_FAIL_MESSAGE}" STREQUAL "DEFAULT_MSG")
IF(FPHSA_CONFIG_MODE)
LIST(INSERT FPHSA_REQUIRED_VARS 0 ${_NAME}_CONFIG)
LIST(REMOVE_DUPLICATES FPHSA_REQUIRED_VARS)
SET(FPHSA_VERSION_VAR ${_NAME}_VERSION)
ENDIF(FPHSA_CONFIG_MODE)
IF(NOT FPHSA_REQUIRED_VARS)
MESSAGE(FATAL_ERROR "No REQUIRED_VARS specified for FIND_PACKAGE_HANDLE_STANDARD_ARGS()")
ENDIF(NOT FPHSA_REQUIRED_VARS)
LIST(GET FPHSA_REQUIRED_VARS 0 _FIRST_REQUIRED_VAR)
STRING(TOUPPER ${_NAME} _NAME_UPPER)
STRING(TOLOWER ${_NAME} _NAME_LOWER)
# collect all variables which were not found, so they can be printed, so the
# user knows better what went wrong (#6375)
SET(MISSING_VARS "")
SET(DETAILS "")
SET(${_NAME_UPPER}_FOUND TRUE)
# check if all passed variables are valid
FOREACH(_CURRENT_VAR ${FPHSA_REQUIRED_VARS})
IF(NOT ${_CURRENT_VAR})
SET(${_NAME_UPPER}_FOUND FALSE)
SET(MISSING_VARS "${MISSING_VARS} ${_CURRENT_VAR}")
ELSE(NOT ${_CURRENT_VAR})
SET(DETAILS "${DETAILS}[${${_CURRENT_VAR}}]")
ENDIF(NOT ${_CURRENT_VAR})
ENDFOREACH(_CURRENT_VAR)
# version handling:
SET(VERSION_MSG "")
SET(VERSION_OK TRUE)
IF (${_NAME}_FIND_VERSION)
# if the package was found, check for the version using <NAME>_FIND_VERSION
IF (${_NAME_UPPER}_FOUND)
SET(VERSION ${${FPHSA_VERSION_VAR}} )
IF(VERSION)
IF(${_NAME}_FIND_VERSION_EXACT) # exact version required
IF (NOT "${${_NAME}_FIND_VERSION}" VERSION_EQUAL "${VERSION}")
SET(VERSION_MSG " Found version \"${VERSION}\", but required is exact version \"${${_NAME}_FIND_VERSION}\"")
SET(VERSION_OK FALSE)
ELSE (NOT "${${_NAME}_FIND_VERSION}" VERSION_EQUAL "${VERSION}")
SET(VERSION_MSG " (found exact version \"${VERSION}\")")
ENDIF (NOT "${${_NAME}_FIND_VERSION}" VERSION_EQUAL "${VERSION}")
ELSE(${_NAME}_FIND_VERSION_EXACT) # minimum version specified:
IF ("${${_NAME}_FIND_VERSION}" VERSION_GREATER "${VERSION}")
SET(VERSION_MSG " Found version \"${VERSION}\", but required is at least \"${${_NAME}_FIND_VERSION}\"")
SET(VERSION_OK FALSE)
ELSE ("${${_NAME}_FIND_VERSION}" VERSION_GREATER "${VERSION}")
SET(VERSION_MSG " (found version \"${VERSION}\", required is \"${${_NAME}_FIND_VERSION}\")")
ENDIF ("${${_NAME}_FIND_VERSION}" VERSION_GREATER "${VERSION}")
ENDIF(${_NAME}_FIND_VERSION_EXACT)
# Uncomment the following two lines to see to which Find-modules the VERSION_VAR keywords still need to be added:
# ELSE(VERSION)
# SET(VERSION_MSG " (WARNING: Required version is \"${${_NAME}_FIND_VERSION}\", but version of ${_NAME} is unknown)")
ENDIF(VERSION)
# if the package was not found, but a version was given, add that to the output:
ELSE (${_NAME_UPPER}_FOUND)
IF(${_NAME}_FIND_VERSION_EXACT)
SET(VERSION_MSG " (Required is exact version \"${${_NAME}_FIND_VERSION}\")")
ELSE(${_NAME}_FIND_VERSION_EXACT)
SET(VERSION_MSG " (Required is at least version \"${${_NAME}_FIND_VERSION}\")")
ENDIF(${_NAME}_FIND_VERSION_EXACT)
ENDIF (${_NAME_UPPER}_FOUND)
ENDIF (${_NAME}_FIND_VERSION)
IF(VERSION_OK)
SET(DETAILS "${DETAILS}[v${VERSION}]")
ELSE(VERSION_OK)
SET(${_NAME_UPPER}_FOUND FALSE)
ENDIF(VERSION_OK)
# print the result:
IF (${_NAME_UPPER}_FOUND)
FIND_PACKAGE_MESSAGE(${_NAME} "Found ${_NAME}: ${${_FIRST_REQUIRED_VAR}} ${VERSION_MSG}" "${DETAILS}")
ELSE (${_NAME_UPPER}_FOUND)
IF(FPHSA_CONFIG_MODE)
IF(${_NAME}_CONFIG)
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE}: found ${${_NAME}_CONFIG} ${VERSION_MSG}, but missing: ${MISSING_VARS}")
ELSE(${_NAME}_CONFIG)
# if _CONSIDERED_CONFIGS is set, the config-file has been found, but no suitable version
IF(${_NAME}_CONSIDERED_CONFIGS)
SET(configsText "")
LIST(LENGTH ${_NAME}_CONSIDERED_CONFIGS configsCount)
MATH(EXPR configsCount "${configsCount} - 1")
FOREACH(currentConfigIndex RANGE ${configsCount})
LIST(GET ${_NAME}_CONSIDERED_CONFIGS ${currentConfigIndex} filename)
LIST(GET ${_NAME}_CONSIDERED_VERSIONS ${currentConfigIndex} version)
SET(configsText "${configsText} ${filename} (version ${version})\n")
ENDFOREACH(currentConfigIndex)
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE} ${VERSION_MSG}, checked the following files:\n${configsText}")
ELSE(${_NAME}_CONSIDERED_CONFIGS)
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE}: ${VERSION_MSG}(found neither ${_NAME}Config.cmake nor ${_NAME_LOWER}-config.cmake)")
ENDIF(${_NAME}_CONSIDERED_CONFIGS)
ENDIF(${_NAME}_CONFIG)
ELSE(FPHSA_CONFIG_MODE)
IF(NOT VERSION_OK)
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE}: ${VERSION_MSG} (found ${${_FIRST_REQUIRED_VAR}})")
ELSE(NOT VERSION_OK)
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE} (missing: ${MISSING_VARS}) ${VERSION_MSG}")
ENDIF(NOT VERSION_OK)
ENDIF(FPHSA_CONFIG_MODE)
ENDIF (${_NAME_UPPER}_FOUND)
SET(${_NAME_UPPER}_FOUND ${${_NAME_UPPER}_FOUND} PARENT_SCOPE)
ENDFUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _FIRST_ARG)
|
