summaryrefslogtreecommitdiffstats
path: root/Modules/FindCURL.cmake
blob: 2f33dac010dbb9b5285db6eacfdf36620dd44590 (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
# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.

#[=======================================================================[.rst:
FindCURL
--------

Find the native CURL headers and libraries.

.. versionadded:: 3.14
  This module accept optional COMPONENTS to check supported features and
  protocols:

::

  PROTOCOLS: ICT FILE FTP FTPS GOPHER HTTP HTTPS IMAP IMAPS LDAP LDAPS POP3
             POP3S RTMP RTSP SCP SFTP SMB SMBS SMTP SMTPS TELNET TFTP
  FEATURES:  SSL IPv6 UnixSockets libz AsynchDNS IDN GSS-API PSL SPNEGO
             Kerberos NTLM NTLM_WB TLS-SRP HTTP2 HTTPS-proxy

IMPORTED Targets
^^^^^^^^^^^^^^^^

.. versionadded:: 3.12

This module defines :prop_tgt:`IMPORTED` target ``CURL::libcurl``, if
curl has been found.

Result Variables
^^^^^^^^^^^^^^^^

This module defines the following variables:

``CURL_FOUND``
  "True" if ``curl`` found.

``CURL_INCLUDE_DIRS``
  where to find ``curl``/``curl.h``, etc.

``CURL_LIBRARIES``
  List of libraries when using ``curl``.

``CURL_VERSION_STRING``
  The version of ``curl`` found.

.. versionadded:: 3.13
  Debug and Release variants are found separately.

CURL CMake
^^^^^^^^^^

.. versionadded:: 3.17

If CURL was built using the CMake buildsystem then it provides its own
``CURLConfig.cmake`` file for use with the :command:`find_package` command's
config mode. This module looks for this file and, if found,
returns its results with no further action.

Set ``CURL_NO_CURL_CMAKE`` to ``ON`` to disable this search.

Hints
^^^^^

``CURL_USE_STATIC_LIBS``

  .. versionadded:: 3.28

  Set to ``TRUE`` to use static libraries.

  This is meaningful only when CURL is not found via its
  CMake Package Configuration file.

#]=======================================================================]

include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)

if(NOT CURL_NO_CURL_CMAKE)
  # do a find package call to specifically look for the CMake version
  # of curl
  find_package(CURL QUIET NO_MODULE)
  mark_as_advanced(CURL_DIR)

  # if we found the CURL cmake package then we are done, and
  # can print what we found and return.
  if(CURL_FOUND)
    find_package_handle_standard_args(CURL HANDLE_COMPONENTS CONFIG_MODE)
    # The upstream curl package sets CURL_VERSION, not CURL_VERSION_STRING.
    set(CURL_VERSION_STRING "${CURL_VERSION}")
    return()
  endif()
endif()

find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
  pkg_check_modules(PC_CURL QUIET libcurl)
  if(PC_CURL_FOUND)
    pkg_get_variable(CURL_SUPPORTED_PROTOCOLS libcurl supported_protocols)
    pkg_get_variable(CURL_SUPPORTED_FEATURES libcurl supported_features)
  endif()
endif()

# Look for the header file.
find_path(CURL_INCLUDE_DIR
          NAMES curl/curl.h
          HINTS ${PC_CURL_INCLUDE_DIRS})
mark_as_advanced(CURL_INCLUDE_DIR)

if(NOT CURL_LIBRARY)
  # Look for the library (sorted from most current/relevant entry to least).
  find_library(CURL_LIBRARY_RELEASE NAMES
      curl
    # Windows MSVC prebuilts:
      curllib
      libcurl_imp
      curllib_static
    # Windows older "Win32 - MSVC" prebuilts (libcurl.lib, e.g. libcurl-7.15.5-win32-msvc.zip):
      libcurl
      NAMES_PER_DIR
      HINTS ${PC_CURL_LIBRARY_DIRS}
  )
  mark_as_advanced(CURL_LIBRARY_RELEASE)

  find_library(CURL_LIBRARY_DEBUG NAMES
    # Windows MSVC CMake builds in debug configuration on vcpkg:
      libcurl-d_imp
      libcurl-d
      NAMES_PER_DIR
      HINTS ${PC_CURL_LIBRARY_DIRS}
  )
  mark_as_advanced(CURL_LIBRARY_DEBUG)

  include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
  select_library_configurations(CURL)
endif()

if(CURL_INCLUDE_DIR)
  foreach(_curl_version_header curlver.h curl.h)
    if(EXISTS "${CURL_INCLUDE_DIR}/curl/${_curl_version_header}")
      file(STRINGS "${CURL_INCLUDE_DIR}/curl/${_curl_version_header}" curl_version_str REGEX "^#define[\t ]+LIBCURL_VERSION[\t ]+\".*\"")

      string(REGEX REPLACE "^#define[\t ]+LIBCURL_VERSION[\t ]+\"([^\"]*)\".*" "\\1" CURL_VERSION_STRING "${curl_version_str}")
      unset(curl_version_str)
      break()
    endif()
  endforeach()
endif()

if(CURL_FIND_COMPONENTS)
  set(CURL_KNOWN_PROTOCOLS ICT FILE FTP FTPS GOPHER HTTP HTTPS IMAP IMAPS LDAP LDAPS POP3 POP3S RTMP RTSP SCP SFTP SMB SMBS SMTP SMTPS TELNET TFTP)
  set(CURL_KNOWN_FEATURES  SSL IPv6 UnixSockets libz AsynchDNS IDN GSS-API PSL SPNEGO Kerberos NTLM NTLM_WB TLS-SRP HTTP2 HTTPS-proxy)
  foreach(component IN LISTS CURL_KNOWN_PROTOCOLS CURL_KNOWN_FEATURES)
    set(CURL_${component}_FOUND FALSE)
  endforeach()
  if(NOT PC_CURL_FOUND)
    find_program(CURL_CONFIG_EXECUTABLE NAMES curl-config)
    if(CURL_CONFIG_EXECUTABLE)
      execute_process(COMMAND ${CURL_CONFIG_EXECUTABLE} --version
                      OUTPUT_VARIABLE CURL_CONFIG_VERSION_STRING
                      ERROR_QUIET
                      OUTPUT_STRIP_TRAILING_WHITESPACE)
      execute_process(COMMAND ${CURL_CONFIG_EXECUTABLE} --feature
                      OUTPUT_VARIABLE CURL_CONFIG_FEATURES_STRING
                      ERROR_QUIET
                      OUTPUT_STRIP_TRAILING_WHITESPACE)
      string(REPLACE "\n" ";" CURL_SUPPORTED_FEATURES "${CURL_CONFIG_FEATURES_STRING}")
      execute_process(COMMAND ${CURL_CONFIG_EXECUTABLE} --protocols
                      OUTPUT_VARIABLE CURL_CONFIG_PROTOCOLS_STRING
                      ERROR_QUIET
                      OUTPUT_STRIP_TRAILING_WHITESPACE)
      string(REPLACE "\n" ";" CURL_SUPPORTED_PROTOCOLS "${CURL_CONFIG_PROTOCOLS_STRING}")
    endif()

  endif()
  foreach(component IN LISTS CURL_FIND_COMPONENTS)
    list(FIND CURL_KNOWN_PROTOCOLS ${component} _found)
    if(NOT _found EQUAL -1)
      list(FIND CURL_SUPPORTED_PROTOCOLS ${component} _found)
      if(NOT _found EQUAL -1)
        set(CURL_${component}_FOUND TRUE)
      elseif(CURL_FIND_REQUIRED)
        message(FATAL_ERROR "CURL: Required protocol ${component} is not found")
      endif()
    else()
      list(FIND CURL_SUPPORTED_FEATURES ${component} _found)
      if(NOT _found EQUAL -1)
        set(CURL_${component}_FOUND TRUE)
      elseif(CURL_FIND_REQUIRED)
        message(FATAL_ERROR "CURL: Required feature ${component} is not found")
      endif()
    endif()
  endforeach()
endif()

find_package_handle_standard_args(CURL
                                  REQUIRED_VARS CURL_LIBRARY CURL_INCLUDE_DIR
                                  VERSION_VAR CURL_VERSION_STRING
                                  HANDLE_COMPONENTS)

if(CURL_FOUND)
  set(CURL_LIBRARIES ${CURL_LIBRARY})
  set(CURL_INCLUDE_DIRS ${CURL_INCLUDE_DIR})

  if(NOT TARGET CURL::libcurl)
    add_library(CURL::libcurl UNKNOWN IMPORTED)
    set_target_properties(CURL::libcurl PROPERTIES
      INTERFACE_INCLUDE_DIRECTORIES "${CURL_INCLUDE_DIRS}")

    if(CURL_USE_STATIC_LIBS)
      set_property(TARGET CURL::libcurl APPEND PROPERTY
                   INTERFACE_COMPILE_DEFINITIONS "CURL_STATICLIB")
    endif()

    if(EXISTS "${CURL_LIBRARY}")
      set_target_properties(CURL::libcurl PROPERTIES
        IMPORTED_LINK_INTERFACE_LANGUAGES "C"
        IMPORTED_LOCATION "${CURL_LIBRARY}")
    endif()
    if(CURL_LIBRARY_RELEASE)
      set_property(TARGET CURL::libcurl APPEND PROPERTY
        IMPORTED_CONFIGURATIONS RELEASE)
      set_target_properties(CURL::libcurl PROPERTIES
        IMPORTED_LINK_INTERFACE_LANGUAGES "C"
        IMPORTED_LOCATION_RELEASE "${CURL_LIBRARY_RELEASE}")
    endif()
    if(CURL_LIBRARY_DEBUG)
      set_property(TARGET CURL::libcurl APPEND PROPERTY
        IMPORTED_CONFIGURATIONS DEBUG)
      set_target_properties(CURL::libcurl PROPERTIES
        IMPORTED_LINK_INTERFACE_LANGUAGES "C"
        IMPORTED_LOCATION_DEBUG "${CURL_LIBRARY_DEBUG}")
    endif()

    if(CURL_USE_STATIC_LIBS AND MSVC)
       set_target_properties(CURL::libcurl PROPERTIES
           INTERFACE_LINK_LIBRARIES "normaliz.lib;ws2_32.lib;wldap32.lib")
    endif()

  endif()
endif()