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
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file LICENSE.rst or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
CMakeFindPackageMode
--------------------
This module is executed by ``cmake`` when invoked with the
:ref:`--find-package <Find-Package Tool Mode>` option to locate the requested
package.
.. note::
This is internal module and is not meant to be included directly in the
project. For usage details, refer to the :ref:`--find-package
<Find-Package Tool Mode>` documentation.
#]=======================================================================]
if(NOT NAME)
message(FATAL_ERROR "Name of the package to be searched not specified. Set the CMake variable NAME, e.g. -DNAME=JPEG .")
endif()
if(NOT COMPILER_ID)
message(FATAL_ERROR "COMPILER_ID argument not specified. In doubt, use GNU.")
endif()
if(NOT LANGUAGE)
message(FATAL_ERROR "LANGUAGE argument not specified. Use C, CXX or Fortran.")
endif()
if(NOT MODE)
message(FATAL_ERROR "MODE argument not specified. Use either EXIST, COMPILE or LINK.")
endif()
# require the current version. If we don't do this, Platforms/CYGWIN.cmake complains because
# it doesn't know whether it should set WIN32 or not:
cmake_minimum_required(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION} )
macro(ENABLE_LANGUAGE)
# disable the enable_language() command, otherwise --find-package breaks on Windows.
# On Windows, enable_language(RC) is called in the platform files unconditionally.
# But in --find-package mode, we don't want (and can't) enable any language.
endmacro()
set(CMAKE_PLATFORM_INFO_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY})
include(CMakeDetermineSystem)
# short-cut some tests on Darwin, see Darwin-GNU.cmake:
if("${CMAKE_SYSTEM_NAME}" MATCHES Darwin AND "${COMPILER_ID}" MATCHES GNU)
set(CMAKE_${LANGUAGE}_SYSROOT_FLAG "")
set(CMAKE_${LANGUAGE}_OSX_DEPLOYMENT_TARGET_FLAG "")
endif()
include(CMakeSystemSpecificInitialize)
# Also load the system specific file, which sets up e.g. the search paths.
# This makes the FIND_XXX() calls work much better
include(CMakeSystemSpecificInformation)
if(UNIX)
# try to guess whether we have a 64bit system, if it has not been set
# from the outside
if(NOT CMAKE_SIZEOF_VOID_P)
set(CMAKE_SIZEOF_VOID_P 4)
if(EXISTS ${CMAKE_SYSROOT}/usr/lib64)
set(CMAKE_SIZEOF_VOID_P 8)
else()
# use the file utility to check whether itself is 64 bit:
find_program(FILE_EXECUTABLE file)
if(FILE_EXECUTABLE)
get_filename_component(FILE_ABSPATH "${FILE_EXECUTABLE}" ABSOLUTE)
execute_process(COMMAND "${FILE_ABSPATH}" "${FILE_ABSPATH}" OUTPUT_VARIABLE fileOutput ERROR_QUIET)
if("${fileOutput}" MATCHES "64-bit")
set(CMAKE_SIZEOF_VOID_P 8)
endif()
endif()
endif()
endif()
# guess Debian multiarch if it has not been set:
if(EXISTS /etc/debian_version)
if(NOT CMAKE_${LANGUAGE}_LIBRARY_ARCHITECTURE )
file(GLOB filesInLib RELATIVE /lib /lib/*-linux-gnu* )
foreach(file ${filesInLib})
if("${file}" MATCHES "${CMAKE_LIBRARY_ARCHITECTURE_REGEX}")
set(CMAKE_${LANGUAGE}_LIBRARY_ARCHITECTURE ${file})
break()
endif()
endforeach()
endif()
if(NOT CMAKE_LIBRARY_ARCHITECTURE)
set(CMAKE_LIBRARY_ARCHITECTURE ${CMAKE_${LANGUAGE}_LIBRARY_ARCHITECTURE})
endif()
endif()
endif()
set(CMAKE_${LANGUAGE}_COMPILER "dummy")
set(CMAKE_${LANGUAGE}_COMPILER_ID "${COMPILER_ID}")
include(CMake${LANGUAGE}Information)
function(set_compile_flags_var _packageName)
string(TOUPPER "${_packageName}" PACKAGE_NAME)
# Check the following variables:
# FOO_INCLUDE_DIRS
# Foo_INCLUDE_DIRS
# FOO_INCLUDES
# Foo_INCLUDES
# FOO_INCLUDE_DIR
# Foo_INCLUDE_DIR
set(includes)
if(DEFINED ${_packageName}_INCLUDE_DIRS)
set(includes ${_packageName}_INCLUDE_DIRS)
elseif(DEFINED ${PACKAGE_NAME}_INCLUDE_DIRS)
set(includes ${PACKAGE_NAME}_INCLUDE_DIRS)
elseif(DEFINED ${_packageName}_INCLUDES)
set(includes ${_packageName}_INCLUDES)
elseif(DEFINED ${PACKAGE_NAME}_INCLUDES)
set(includes ${PACKAGE_NAME}_INCLUDES)
elseif(DEFINED ${_packageName}_INCLUDE_DIR)
set(includes ${_packageName}_INCLUDE_DIR)
elseif(DEFINED ${PACKAGE_NAME}_INCLUDE_DIR)
set(includes ${PACKAGE_NAME}_INCLUDE_DIR)
endif()
set(PACKAGE_INCLUDE_DIRS "${${includes}}" PARENT_SCOPE)
# Check the following variables:
# FOO_DEFINITIONS
# Foo_DEFINITIONS
set(definitions)
if(DEFINED ${_packageName}_DEFINITIONS)
set(definitions ${_packageName}_DEFINITIONS)
elseif(DEFINED ${PACKAGE_NAME}_DEFINITIONS)
set(definitions ${PACKAGE_NAME}_DEFINITIONS)
endif()
set(PACKAGE_DEFINITIONS "${${definitions}}" )
endfunction()
function(set_link_flags_var _packageName)
string(TOUPPER "${_packageName}" PACKAGE_NAME)
# Check the following variables:
# FOO_LIBRARIES
# Foo_LIBRARIES
# FOO_LIBS
# Foo_LIBS
set(libs)
if(DEFINED ${_packageName}_LIBRARIES)
set(libs ${_packageName}_LIBRARIES)
elseif(DEFINED ${PACKAGE_NAME}_LIBRARIES)
set(libs ${PACKAGE_NAME}_LIBRARIES)
elseif(DEFINED ${_packageName}_LIBS)
set(libs ${_packageName}_LIBS)
elseif(DEFINED ${PACKAGE_NAME}_LIBS)
set(libs ${PACKAGE_NAME}_LIBS)
endif()
set(PACKAGE_LIBRARIES "${${libs}}" PARENT_SCOPE )
endfunction()
find_package("${NAME}" QUIET)
set(PACKAGE_FOUND FALSE)
string(TOUPPER "${NAME}" UPPERCASE_NAME)
if(${NAME}_FOUND OR ${UPPERCASE_NAME}_FOUND)
set(PACKAGE_FOUND TRUE)
if("${MODE}" STREQUAL "EXIST")
# do nothing
elseif("${MODE}" STREQUAL "COMPILE")
set_compile_flags_var(${NAME})
elseif("${MODE}" STREQUAL "LINK")
set_link_flags_var(${NAME})
else()
message(FATAL_ERROR "Invalid mode argument ${MODE} given.")
endif()
endif()
set(PACKAGE_QUIET ${SILENT} )
|
