summaryrefslogtreecommitdiffstats
path: root/config/cmake/HDFCXXCompilerFlags.cmake
blob: 85273279b6f1c4196be1916685a342ae7159a2b4 (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
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
#
# Copyright by The HDF Group.
# All rights reserved.
#
# This file is part of HDF5.  The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the COPYING file, which can be found at the root of the source code
# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.
#
set(CMAKE_CXX_STANDARD 98)
set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
set(CMAKE_CXX_EXTENSIONS OFF)

set (CMAKE_CXX_FLAGS "${CMAKE_CXX_SANITIZER_FLAGS} ${CMAKE_CXX_FLAGS}")
message (STATUS "Warnings Configuration: CXX default:  ${CMAKE_CXX_FLAGS}")
#-----------------------------------------------------------------------------
# Compiler specific flags : Shouldn't there be compiler tests for these
#-----------------------------------------------------------------------------
if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
  set (CMAKE_CXX_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_CXX_FLAGS}")
  if (${HDF_CFG_NAME} MATCHES "Debug")
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Og -ftrapv -fno-common")
    endif ()
  else ()
    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstdarg-opt")
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to disable compiler warnings
#-----------------------------------------------------------------------------
if (HDF5_DISABLE_COMPILER_WARNINGS)
  message (STATUS "....Compiler warnings are suppressed")
  # MSVC uses /w to suppress warnings.  It also complains if another
  # warning level is given, so remove it.
  if (MSVC)
    set (HDF5_WARNINGS_BLOCKED 1)
    if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W0")
    endif ()
  endif ()
  if (WIN32)
    add_definitions (-D_CRT_SECURE_NO_WARNINGS)
  endif ()

  # Most compilers use -w to suppress warnings.
  if (NOT HDF5_WARNINGS_BLOCKED)
    if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -w")
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# HDF5 library compile options
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# CDash is configured to only allow 3000 warnings, so
# break into groups (from the config/gnu-flags file)
#-----------------------------------------------------------------------------
if (NOT MSVC)
  if (${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
    list (APPEND HDF5_CMAKE_CXX_FLAGS "-erroff=%none -DBSD_COMP")
  else ()
    # General flags
    #
    # Note that some of the flags listed here really should be developer
    # flags (listed in a separate variable, below) but we put them here
    # because they are not raised by the current code and we'd like to
    # know if they do start showing up.
    #
    # NOTE: Don't add -Wpadded here since we can't/won't fix the (many)
    # warnings that are emitted. If you need it, add it at configure time.
    if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
      ADD_H5_FLAGS (HDF5_CMAKE_CXX_FLAGS "${HDF5_SOURCE_DIR}/config/intel-warnings/general")
      if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0)
        list (APPEND H5_CXXFLAGS0 "-Wextra-tokens -Wformat -Wformat-security -Wic-pointer -Wshadow")
        list (APPEND H5_CXXFLAGS0 "-Wsign-compare -Wtrigraphs -Wwrite-strings")
      endif()
    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED
          AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 4.8)
        # add the general CXX flags for g++ compiler versions 4.8 and above.
        ADD_H5_FLAGS (HDF5_CMAKE_CXX_FLAGS "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-general")
        ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-error-general")
      endif ()
    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
      ADD_H5_FLAGS (HDF5_CMAKE_CXX_FLAGS "${HDF5_SOURCE_DIR}/config/clang-warnings/general")
    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "PGI")
      list (APPEND HDF5_CMAKE_CXX_FLAGS "-Minform=inform")
    endif ()
    message (STATUS "CMAKE_CXX_FLAGS_GENERAL=${HDF5_CMAKE_CXX_FLAGS}")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to allow the user to enable developer warnings
  # Developer warnings (suggestions from gcc, not code problems)
  #-----------------------------------------------------------------------------
  if (HDF5_ENABLE_DEV_WARNINGS)
    message (STATUS "....HDF5 developer group warnings are enabled")
  #  if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
  #    list (APPEND H5_CXXFLAGS0 "-Winline -Wreorder -Wport -Wstrict-aliasing")
  #  elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-general")
  #  elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  #    ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/developer-general")
    endif ()
  else ()
    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-general")
  #  elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  #    ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/no-developer-general")
    endif ()
  endif ()

  if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    # Technically, variable-length arrays are part of the C99 standard, but
    #   we should approach them a bit cautiously... Only needed for gcc 4.X
    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0 AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 4.8)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.8-4.last")
    endif ()

    # Append more extra warning flags that only gcc 4.8+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.8")
      if (HDF5_ENABLE_DEV_WARNINGS)
        ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-4.8")
      else ()
        ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-4.8")
      endif ()
    endif ()

    # Append more extra warning flags that only gcc 4.9+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.9")
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-4.9")
    endif ()

    # Append more extra warning flags that only gcc 5.1+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-5")
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-error-5")
    endif ()

    # Append more extra warning flags that only gcc 6.x+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.0)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/6")
    endif ()

    # Append more extra warning flags that only gcc 7.x+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXxFLAGS2 "${HDF5_SOURCE_DIR}/config/gnu-warnings/7")
      if (HDF5_ENABLE_DEV_WARNINGS)
        # autotools always add the C flags with the CXX flags
        ADD_H5_FLAGS (H5_CXXFLAGS2 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-7")
      #else ()
      #  ADD_H5_FLAGS (H5_CXXFLAGS2 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-7")
      endif ()
    endif ()

    # Append more extra warning flags that only gcc 8.x+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/8")
      #ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-8")
      if (HDF5_ENABLE_DEV_WARNINGS)
        # autotools always add the C flags with the CXX flags
        ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-8")
      else ()
        # autotools always add the C flags with the CXX flags
        ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-8")
      endif ()
    endif ()

    # Append more extra warning flags that only gcc 9.x+ know about
    if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0)
      # autotools always add the C flags with the CXX flags
      ADD_H5_FLAGS (H5_CXXFLAGS4 "${HDF5_SOURCE_DIR}/config/gnu-warnings/9")
    endif ()
  endif ()
else ()
    list (APPEND HDF5_CMAKE_CXX_FLAGS "/EHsc")
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to enable all warnings
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_ALL_WARNINGS)
  message (STATUS "....All Warnings are enabled")
  if (MSVC)
    if (HDF5_ENABLE_DEV_WARNINGS)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
        list (APPEND HDF5_CMAKE_CXX_FLAGS "/Wall /wd4668")
      endif ()
    else ()
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
        list (APPEND HDF5_CMAKE_CXX_FLAGS "/W3")
      endif ()
    endif ()
  else ()
    if (CMAKE_COMPILER_IS_GNUCC)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        list (APPEND HDF5_CMAKE_CXX_FLAGS ${H5_CXXFLAGS0} ${H5_CXXFLAGS1} ${H5_CXXFLAGS2} ${H5_CXXFLAGS3} ${H5_CXXFLAGS4})
      endif ()
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_GROUPZERO_WARNINGS)
  message (STATUS "....Group Zero warnings are enabled")
  if (MSVC)
    if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_CXX_FLAGS "${HDF5_CMAKE_CXX_FLAGS}")
      list (APPEND HDF5_CMAKE_CXX_FLAGS "/W1")
    endif ()
  else ()
    if (CMAKE_COMPILER_IS_GNUCC)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        list (APPEND HDF5_CMAKE_CXX_FLAGS ${H5_CXXFLAGS0})
      endif ()
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_GROUPONE_WARNINGS)
  message (STATUS "....Group One warnings are enabled")
  if (MSVC)
    if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_CXX_FLAGS "${HDF5_CMAKE_CXX_FLAGS}")
      list (APPEND HDF5_CMAKE_CXX_FLAGS "/W2")
    endif ()
  else ()
    if (CMAKE_COMPILER_IS_GNUCC)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        list (APPEND HDF5_CMAKE_CXX_FLAGS ${H5_CXXFLAGS1})
      endif ()
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_GROUPTWO_WARNINGS)
  message (STATUS "....Group Two warnings are enabled")
  if (MSVC)
    if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_CXX_FLAGS "${HDF5_CMAKE_CXX_FLAGS}")
      list (APPEND HDF5_CMAKE_CXX_FLAGS "/W3")
    endif ()
  else ()
    if (CMAKE_COMPILER_IS_GNUCC)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        list (APPEND HDF5_CMAKE_CXX_FLAGS ${H5_CXXFLAGS2})
      endif ()
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_GROUPTHREE_WARNINGS)
  message (STATUS "....Group Three warnings are enabled")
  if (MSVC)
    if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_CXX_FLAGS "${HDF5_CMAKE_CXX_FLAGS}")
      list (APPEND HDF5_CMAKE_CXX_FLAGS "/W4")
    endif ()
  else ()
    if (CMAKE_COMPILER_IS_GNUCC)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        list (APPEND HDF5_CMAKE_CXX_FLAGS ${H5_CXXFLAGS3})
      endif ()
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_GROUPFOUR_WARNINGS)
  message (STATUS "....Group Four warnings are enabled")
  if (NOT MSVC)
    if (CMAKE_COMPILER_IS_GNUCC)
      if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
        list (APPEND HDF5_CMAKE_CXX_FLAGS ${H5_CXXFLAGS4})
      endif ()
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# This is in here to help some of the GCC based IDES like Eclipse
# and code blocks parse the compiler errors and warnings better.
#-----------------------------------------------------------------------------
if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_LOADED)
  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fmessage-length=0")
endif ()

#-----------------------------------------------------------------------------
# Option for --enable-symbols
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_SYMBOLS MATCHES "YES")
  if(CMAKE_CXX_COMPILER_LOADED)
    if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g")
    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g")
    endif ()
  endif ()
elseif (HDF5_ENABLE_SYMBOLS MATCHES "NO")
  if(CMAKE_CXX_COMPILER_LOADED)
    if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
      set (CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -Wl,-s")
    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s")
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option for --enable-profiling
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_PROFILING)
  if(CMAKE_CXX_COMPILER_LOADED)
    list (APPEND HDF5_CMAKE_CXX_FLAGS "${PROFILE_CXXFLAGS}")
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Option for --enable-optimization
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
if (HDF5_ENABLE_OPTIMIZATION)
  if(CMAKE_CXX_COMPILER_LOADED)
    list (APPEND HDF5_CMAKE_CXX_FLAGS "${OPTIMIZE_CXXFLAGS}")
  endif ()
endif ()