summaryrefslogtreecommitdiffstats
path: root/Modules/FindCurses.cmake
blob: ad4052244ea133a4fb39ee18eee12d72d9b42788 (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
256
257
258
259
260
261
262
263
264
265
# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.

#[=======================================================================[.rst:
FindCurses
----------

Find the curses or ncurses include file and library.

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

This module defines the following variables:

``CURSES_FOUND``
  True if Curses is found.
``CURSES_INCLUDE_DIRS``
  The include directories needed to use Curses.
``CURSES_LIBRARIES``
  The libraries needed to use Curses.
``CURSES_CFLAGS``
  Parameters which ought be given to C/C++ compilers when using Curses.
``CURSES_HAVE_CURSES_H``
  True if curses.h is available.
``CURSES_HAVE_NCURSES_H``
  True if ncurses.h is available.
``CURSES_HAVE_NCURSES_NCURSES_H``
  True if ``ncurses/ncurses.h`` is available.
``CURSES_HAVE_NCURSES_CURSES_H``
  True if ``ncurses/curses.h`` is available.

Set ``CURSES_NEED_NCURSES`` to ``TRUE`` before the
``find_package(Curses)`` call if NCurses functionality is required.
Set ``CURSES_NEED_WIDE`` to ``TRUE`` before the
``find_package(Curses)`` call if unicode functionality is required.

Backward Compatibility
^^^^^^^^^^^^^^^^^^^^^^

The following variable are provided for backward compatibility:

``CURSES_INCLUDE_DIR``
  Path to Curses include.  Use ``CURSES_INCLUDE_DIRS`` instead.
``CURSES_LIBRARY``
  Path to Curses library.  Use ``CURSES_LIBRARIES`` instead.
#]=======================================================================]

include(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)

# we don't know anything about cursesw, so only ncurses
# may be ncursesw
if(NOT CURSES_NEED_WIDE)
  set(NCURSES_LIBRARY_NAME "ncurses")
else()
  set(NCURSES_LIBRARY_NAME "ncursesw")
  # Also, if we are searchig fo wide curses - we are actually searching
  # for ncurses, we don't know about any other unicode version.
  set(CURSES_NEED_NCURSES TRUE)
endif()

find_library(CURSES_CURSES_LIBRARY NAMES curses)

find_library(CURSES_NCURSES_LIBRARY NAMES "${NCURSES_LIBRARY_NAME}" )
set(CURSES_USE_NCURSES FALSE)

if(CURSES_NCURSES_LIBRARY  AND ((NOT CURSES_CURSES_LIBRARY) OR CURSES_NEED_NCURSES))
  set(CURSES_USE_NCURSES TRUE)
endif()
# http://cygwin.com/ml/cygwin-announce/2010-01/msg00002.html
# cygwin ncurses stopped providing curses.h symlinks see above
# message.  Cygwin is an ncurses package, so force ncurses on
# cygwin if the curses.h is missing
if(CYGWIN)
  if (CURSES_NEED_WIDE)
    if(NOT EXISTS /usr/include/ncursesw/curses.h)
      set(CURSES_USE_NCURSES TRUE)
    endif()
  else()
    if(NOT EXISTS /usr/include/curses.h)
      set(CURSES_USE_NCURSES TRUE)
    endif()
  endif()
endif()


# Not sure the logic is correct here.
# If NCurses is required, use the function wsyncup() to check if the library
# has NCurses functionality (at least this is where it breaks on NetBSD).
# If wsyncup is in curses, use this one.
# If not, try to find ncurses and check if this has the symbol.
# Once the ncurses library is found, search the ncurses.h header first, but
# some web pages also say that even with ncurses there is not always a ncurses.h:
# http://osdir.com/ml/gnome.apps.mc.devel/2002-06/msg00029.html
# So at first try ncurses.h, if not found, try to find curses.h under the same
# prefix as the library was found, if still not found, try curses.h with the
# default search paths.
if(CURSES_CURSES_LIBRARY  AND  CURSES_NEED_NCURSES)
  include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake)
  cmake_push_check_state()
  set(CMAKE_REQUIRED_QUIET ${Curses_FIND_QUIETLY})
  CHECK_LIBRARY_EXISTS("${CURSES_CURSES_LIBRARY}"
    wsyncup "" CURSES_CURSES_HAS_WSYNCUP)

  if(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_CURSES_HAS_WSYNCUP)
    CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}"
      wsyncup "" CURSES_NCURSES_HAS_WSYNCUP)
    if( CURSES_NCURSES_HAS_WSYNCUP)
      set(CURSES_USE_NCURSES TRUE)
    endif()
  endif()
  cmake_pop_check_state()

endif()

if(CURSES_USE_NCURSES)
  get_filename_component(_cursesLibDir "${CURSES_NCURSES_LIBRARY}" PATH)
  get_filename_component(_cursesParentDir "${_cursesLibDir}" PATH)

  # Use CURSES_NCURSES_INCLUDE_PATH if set, for compatibility.
  if(CURSES_NCURSES_INCLUDE_PATH)
    if (CURSES_NEED_WIDE)
      find_path(CURSES_INCLUDE_PATH
        NAMES ncursesw/ncurses.h ncursesw/curses.h ncursesw.h cursesw.h
        PATHS ${CURSES_NCURSES_INCLUDE_PATH}
        NO_DEFAULT_PATH
        )
    else()
      find_path(CURSES_INCLUDE_PATH
        NAMES ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h
        PATHS ${CURSES_NCURSES_INCLUDE_PATH}
        NO_DEFAULT_PATH
        )
    endif()
  endif()

  if (CURSES_NEED_WIDE)
    set(CURSES_TINFO_LIBRARY_NAME tinfow)
    find_path(CURSES_INCLUDE_PATH
      NAMES ncursesw/ncurses.h ncursesw/curses.h ncursesw.h cursesw.h
      HINTS "${_cursesParentDir}/include"
      )
  else()
    set(CURSES_TINFO_LIBRARY_NAME tinfo)
    find_path(CURSES_INCLUDE_PATH
      NAMES ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h
      HINTS "${_cursesParentDir}/include"
      )
  endif()

  # Previous versions of FindCurses provided these values.
  if(NOT DEFINED CURSES_LIBRARY)
    set(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}")
  endif()

  CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}"
    cbreak "" CURSES_NCURSES_HAS_CBREAK)
  if(NOT CURSES_NCURSES_HAS_CBREAK)
    find_library(CURSES_EXTRA_LIBRARY "${CURSES_TINFO_LIBRARY_NAME}" HINTS "${_cursesLibDir}")
    find_library(CURSES_EXTRA_LIBRARY "${CURSES_TINFO_LIBRARY_NAME}" )
  endif()
else()
  get_filename_component(_cursesLibDir "${CURSES_CURSES_LIBRARY}" PATH)
  get_filename_component(_cursesParentDir "${_cursesLibDir}" PATH)

  #We can't find anything with CURSES_NEED_WIDE because we know
  #only about ncursesw unicode curses version
  if(NOT CURSES_NEED_WIDE)
    find_path(CURSES_INCLUDE_PATH
      NAMES curses.h
      HINTS "${_cursesParentDir}/include"
      )
  endif()

  # Previous versions of FindCurses provided these values.
  if(NOT DEFINED CURSES_CURSES_H_PATH)
    set(CURSES_CURSES_H_PATH "${CURSES_INCLUDE_PATH}")
  endif()
  if(NOT DEFINED CURSES_LIBRARY)
    set(CURSES_LIBRARY "${CURSES_CURSES_LIBRARY}")
  endif()
endif()

# Report whether each possible header name exists in the include directory.
if(NOT DEFINED CURSES_HAVE_NCURSES_NCURSES_H)
  if(CURSES_NEED_WIDE)
    if(EXISTS "${CURSES_INCLUDE_PATH}/ncursesw/ncurses.h")
      set(CURSES_HAVE_NCURSES_NCURSES_H "${CURSES_INCLUDE_PATH}/ncursesw/ncurses.h")
    endif()
  elseif(EXISTS "${CURSES_INCLUDE_PATH}/ncurses/ncurses.h")
    set(CURSES_HAVE_NCURSES_NCURSES_H "${CURSES_INCLUDE_PATH}/ncurses/ncurses.h")
  endif()
  if(NOT DEFINED CURSES_HAVE_NCURSES_NCURSES_H)
    set(CURSES_HAVE_NCURSES_NCURSES_H "CURSES_HAVE_NCURSES_NCURSES_H-NOTFOUND")
  endif()
endif()
if(NOT DEFINED CURSES_HAVE_NCURSES_CURSES_H)
  if(CURSES_NEED_WIDE)
    if(EXISTS "${CURSES_INCLUDE_PATH}/ncursesw/curses.h")
      set(CURSES_HAVE_NCURSES_CURSES_H "${CURSES_INCLUDE_PATH}/ncursesw/curses.h")
    endif()
  elseif(EXISTS "${CURSES_INCLUDE_PATH}/ncurses/curses.h")
    set(CURSES_HAVE_NCURSES_CURSES_H "${CURSES_INCLUDE_PATH}/ncurses/curses.h")
  endif()
  if(NOT DEFINED CURSES_HAVE_NCURSES_CURSES_H)
    set(CURSES_HAVE_NCURSES_CURSES_H "CURSES_HAVE_NCURSES_CURSES_H-NOTFOUND")
  endif()
endif()
if(NOT CURSES_NEED_WIDE)
  #ncursesw can't be found for this paths
  if(NOT DEFINED CURSES_HAVE_NCURSES_H)
    if(EXISTS "${CURSES_INCLUDE_PATH}/ncurses.h")
      set(CURSES_HAVE_NCURSES_H "${CURSES_INCLUDE_PATH}/ncurses.h")
    else()
      set(CURSES_HAVE_NCURSES_H "CURSES_HAVE_NCURSES_H-NOTFOUND")
    endif()
  endif()
  if(NOT DEFINED CURSES_HAVE_CURSES_H)
    if(EXISTS "${CURSES_INCLUDE_PATH}/curses.h")
      set(CURSES_HAVE_CURSES_H "${CURSES_INCLUDE_PATH}/curses.h")
    else()
      set(CURSES_HAVE_CURSES_H "CURSES_HAVE_CURSES_H-NOTFOUND")
    endif()
  endif()
endif()

find_library(CURSES_FORM_LIBRARY form HINTS "${_cursesLibDir}")
find_library(CURSES_FORM_LIBRARY form )

# Previous versions of FindCurses provided these values.
if(NOT DEFINED FORM_LIBRARY)
  set(FORM_LIBRARY "${CURSES_FORM_LIBRARY}")
endif()

# Need to provide the *_LIBRARIES
set(CURSES_LIBRARIES ${CURSES_LIBRARY})

if(CURSES_EXTRA_LIBRARY)
  set(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_EXTRA_LIBRARY})
endif()

if(CURSES_FORM_LIBRARY)
  set(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_FORM_LIBRARY})
endif()

# Provide the *_INCLUDE_DIRS and *_CFLAGS results.
set(CURSES_INCLUDE_DIRS ${CURSES_INCLUDE_PATH})
set(CURSES_INCLUDE_DIR ${CURSES_INCLUDE_PATH}) # compatibility

find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
  pkg_check_modules(NCURSES QUIET ${NCURSES_LIBRARY_NAME})
  set(CURSES_CFLAGS ${NCURSES_CFLAGS_OTHER})
endif()

include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Curses DEFAULT_MSG
  CURSES_LIBRARY CURSES_INCLUDE_PATH)

mark_as_advanced(
  CURSES_INCLUDE_PATH
  CURSES_CURSES_LIBRARY
  CURSES_NCURSES_LIBRARY
  CURSES_EXTRA_LIBRARY
  CURSES_FORM_LIBRARY
  )