wscript

   1 #
   2 #    Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
   3 #
   4 #    This file is part of DCP-o-matic.
   5 #
   6 #    DCP-o-matic is free software; you can redistribute it and/or modify
   7 #    it under the terms of the GNU General Public License as published by
   8 #    the Free Software Foundation; either version 2 of the License, or
   9 #    (at your option) any later version.
  10 #
  11 #    DCP-o-matic is distributed in the hope that it will be useful,
  12 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 #    GNU General Public License for more details.
  15 #
  16 #    You should have received a copy of the GNU General Public License
  17 #    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19
  20 from __future__ import print_function
  21
  22 import subprocess
  23 import os
  24 import shlex
  25 import sys
  26 import glob
  27 import distutils
  28 import distutils.spawn
  29 try:
  30     # python 2
  31     from urllib import urlencode
  32 except ImportError:
  33     # python 3
  34     from urllib.parse import urlencode
  35 from waflib import Logs, Context
  36
  37 APPNAME = 'dcpomatic'
  38
  39 this_version = subprocess.Popen(shlex.split('git tag -l --points-at HEAD'), stdout=subprocess.PIPE).communicate()[0]
  40 last_version = subprocess.Popen(shlex.split('git describe --tags --abbrev=0'), stdout=subprocess.PIPE).communicate()[0]
  41
  42 # Python 2/3 compatibility; I don't really understand what's going on here
  43 if not isinstance(this_version, str):
  44     this_version = this_version.decode('utf-8')
  45 if not isinstance(last_version, str):
  46     last_version = last_version.decode('utf-8')
  47
  48 if this_version == '':
  49     VERSION = '%sdevel' % last_version[1:].strip()
  50 else:
  51     VERSION = this_version[1:].strip()
  52
  53 def options(opt):
  54     opt.load('compiler_cxx')
  55     opt.load('winres')
  56
  57     opt.add_option('--enable-debug',      action='store_true', default=False, help='build with debugging information and without optimisation')
  58     opt.add_option('--disable-gui',       action='store_true', default=False, help='disable building of GUI tools')
  59     opt.add_option('--disable-tests',     action='store_true', default=False, help='disable building of tests')
  60     opt.add_option('--install-prefix',                         default=None,  help='prefix of where DCP-o-matic will be installed')
  61     opt.add_option('--target-windows',    action='store_true', default=False, help='set up to do a cross-compile for Windows')
  62     opt.add_option('--target-macos-arm64', action='store_true', default=False, help='set up to do a cross-compile for macOS arm64')
  63     opt.add_option('--static-dcpomatic',  action='store_true', default=False, help='link to components of DCP-o-matic statically')
  64     opt.add_option('--static-boost',      action='store_true', default=False, help='link statically to Boost')
  65     opt.add_option('--static-wxwidgets',  action='store_true', default=False, help='link statically to wxWidgets')
  66     opt.add_option('--static-ffmpeg',     action='store_true', default=False, help='link statically to FFmpeg')
  67     opt.add_option('--static-xmlpp',      action='store_true', default=False, help='link statically to libxml++')
  68     opt.add_option('--static-xmlsec',     action='store_true', default=False, help='link statically to xmlsec')
  69     opt.add_option('--static-ssh',        action='store_true', default=False, help='link statically to libssh')
  70     opt.add_option('--static-cxml',       action='store_true', default=False, help='link statically to libcxml')
  71     opt.add_option('--static-dcp',        action='store_true', default=False, help='link statically to libdcp')
  72     opt.add_option('--static-sub',        action='store_true', default=False, help='link statically to libsub')
  73     opt.add_option('--static-curl',       action='store_true', default=False, help='link statically to libcurl')
  74     opt.add_option('--workaround-gssapi', action='store_true', default=False, help='link to gssapi_krb5')
  75     opt.add_option('--force-cpp11',       action='store_true', default=False, help='force use of C++11')
  76     opt.add_option('--use-lld',           action='store_true', default=False, help='use lld linker')
  77     opt.add_option('--enable-disk',       action='store_true', default=False, help='build dcpomatic2_disk tool; requires Boost process, lwext4 and nanomsg libraries')
  78     opt.add_option('--warnings-are-errors', action='store_true', default=False, help='build with -Werror')
  79     opt.add_option('--wx-config',         help='path to wx-config')
  80
  81 def configure(conf):
  82     conf.load('compiler_cxx')
  83     conf.load('clang_compilation_database', tooldir=['waf-tools'])
  84     if conf.options.target_windows:
  85         conf.load('winres')
  86
  87     # Save conf.options that we need elsewhere in conf.env
  88     conf.env.DISABLE_GUI = conf.options.disable_gui
  89     conf.env.DISABLE_TESTS = conf.options.disable_tests
  90     conf.env.TARGET_WINDOWS = conf.options.target_windows
  91     conf.env.TARGET_OSX = sys.platform == 'darwin'
  92     conf.env.TARGET_LINUX = not conf.env.TARGET_WINDOWS and not conf.env.TARGET_OSX
  93     conf.env.VERSION = VERSION
  94     conf.env.DEBUG = conf.options.enable_debug
  95     conf.env.STATIC_DCPOMATIC = conf.options.static_dcpomatic
  96     conf.env.ENABLE_DISK = conf.options.enable_disk
  97     if conf.options.install_prefix is None:
  98         conf.env.INSTALL_PREFIX = conf.env.PREFIX
  99     else:
 100         conf.env.INSTALL_PREFIX = conf.options.install_prefix
 101
 102     # Common CXXFLAGS
 103     conf.env.append_value('CXXFLAGS', ['-D__STDC_CONSTANT_MACROS',
 104                                        '-D__STDC_LIMIT_MACROS',
 105                                        '-D__STDC_FORMAT_MACROS',
 106                                        '-fno-strict-aliasing',
 107                                        '-Wall',
 108                                        '-Wextra',
 109                                        '-Wwrite-strings',
 110                                        # I tried and failed to ignore these with _Pragma
 111                                        '-Wno-ignored-qualifiers',
 112                                        '-D_FILE_OFFSET_BITS=64'])
 113
 114     if conf.options.force_cpp11:
 115         conf.env.append_value('CXXFLAGS', ['-std=c++11', '-DBOOST_NO_CXX11_SCOPED_ENUMS'])
 116
 117     if conf.options.warnings_are_errors:
 118         conf.env.append_value('CXXFLAGS', '-Werror')
 119
 120     if not conf.options.target_macos_arm64:
 121         conf.env.append_value('CXXFLAGS', '-msse')
 122
 123     if conf.env['CXX_NAME'] == 'gcc':
 124         gcc = conf.env['CC_VERSION']
 125         if int(gcc[0]) >= 8:
 126             # I tried and failed to ignore these with _Pragma
 127             conf.env.append_value('CXXFLAGS', ['-Wno-cast-function-type'])
 128         have_c11 = int(gcc[0]) >= 4 and int(gcc[1]) >= 8 and int(gcc[2]) >= 1
 129         # Most gccs still give these warnings from boost::optional
 130         conf.env.append_value('CXXFLAGS', ['-Wno-maybe-uninitialized'])
 131     else:
 132         have_c11 = False
 133
 134     if conf.options.enable_debug:
 135         conf.env.append_value('CXXFLAGS', ['-g', '-DDCPOMATIC_DEBUG', '-fno-omit-frame-pointer'])
 136     else:
 137         conf.env.append_value('CXXFLAGS', '-O2')
 138
 139     if conf.options.enable_disk:
 140         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_DISK')
 141
 142     if conf.options.use_lld:
 143         try:
 144             conf.find_program('ld.lld')
 145             conf.env.append_value('LINKFLAGS', '-fuse-ld=lld')
 146         except conf.errors.ConfigurationError:
 147             pass
 148
 149     #
 150     # Windows/Linux/OS X specific
 151     #
 152
 153     # Windows
 154     if conf.env.TARGET_WINDOWS:
 155         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_WINDOWS')
 156         conf.env.append_value('CXXFLAGS', '-DWIN32_LEAN_AND_MEAN')
 157         conf.env.append_value('CXXFLAGS', '-DBOOST_USE_WINDOWS_H')
 158         conf.env.append_value('CXXFLAGS', '-DUNICODE')
 159         conf.env.append_value('CXXFLAGS', '-DBOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN')
 160         conf.env.append_value('CXXFLAGS', '-mfpmath=sse')
 161         conf.env.append_value('CXXFLAGS', '-std=c++11')
 162         conf.env.append_value('CXXFLAGS', '-Wcast-align')
 163         wxrc = os.popen('wx-config --rescomp').read().split()[1:]
 164         conf.env.append_value('WINRCFLAGS', wxrc)
 165         if conf.options.enable_debug:
 166             conf.env.append_value('CXXFLAGS', ['-mconsole'])
 167             conf.env.append_value('LINKFLAGS', ['-mconsole'])
 168         conf.check(lib='ws2_32', uselib_store='WINSOCK2', msg="Checking for library winsock2")
 169         conf.check(lib='dbghelp', uselib_store='DBGHELP', msg="Checking for library dbghelp")
 170         conf.check(lib='shlwapi', uselib_store='SHLWAPI', msg="Checking for library shlwapi")
 171         conf.check(lib='mswsock', uselib_store='MSWSOCK', msg="Checking for library mswsock")
 172         conf.check(lib='ole32', uselib_store='OLE32', msg="Checking for library ole32")
 173         conf.check(lib='dsound', uselib_store='DSOUND', msg="Checking for library dsound")
 174         conf.check(lib='winmm', uselib_store='WINMM', msg="Checking for library winmm")
 175         conf.check(lib='ksuser', uselib_store='KSUSER', msg="Checking for library ksuser")
 176         conf.check(lib='setupapi', uselib_store='SETUPAPI', msg="Checking for library setupapi")
 177         boost_lib_suffix = '-mt'
 178         boost_thread = 'boost_thread-mt'
 179         conf.check_cxx(fragment="""
 180                                #include <boost/locale.hpp>\n
 181                                int main() { std::locale::global (boost::locale::generator().generate ("")); }\n
 182                                """,
 183                                msg='Checking for boost locale library',
 184                                libpath='/usr/local/lib',
 185                                lib=['boost_locale%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
 186                                uselib_store='BOOST_LOCALE')
 187
 188     # POSIX
 189     if conf.env.TARGET_LINUX or conf.env.TARGET_OSX:
 190         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_POSIX')
 191         boost_lib_suffix = ''
 192         boost_thread = 'boost_thread'
 193         conf.env.append_value('LINKFLAGS', '-pthread')
 194
 195     # Linux
 196     if conf.env.TARGET_LINUX:
 197         conf.env.append_value('CXXFLAGS', '-mfpmath=sse')
 198         conf.env.append_value('CXXFLAGS', '-DLINUX_LOCALE_PREFIX="%s/share/locale"' % conf.env['INSTALL_PREFIX'])
 199         conf.env.append_value('CXXFLAGS', '-DLINUX_SHARE_PREFIX="%s/share"' % conf.env['INSTALL_PREFIX'])
 200         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_LINUX')
 201         conf.env.append_value('CXXFLAGS', ['-Wlogical-op', '-Wcast-align'])
 202         conf.check(lib='dl', uselib_store='DL', msg='Checking for library dl')
 203
 204     # OSX
 205     if conf.env.TARGET_OSX:
 206         conf.env.append_value('CXXFLAGS', ['-DDCPOMATIC_OSX', '-DGL_SILENCE_DEPRECATION'])
 207         conf.env.append_value('LINKFLAGS', '-headerpad_max_install_names')
 208
 209     #
 210     # Dependencies.
 211     #
 212
 213     # It should be possible to use check_cfg for both dynamic and static linking, but
 214     # e.g. pkg-config --libs --static foo returns some libraries that should be statically
 215     # linked and others that should be dynamic.  This doesn't work too well with waf
 216     # as it wants them separate.
 217
 218     # libcurl
 219     if conf.options.static_curl:
 220         conf.env.STLIB_CURL = ['curl']
 221         conf.env.LIB_CURL = ['ssh2', 'idn']
 222     else:
 223         conf.check_cfg(package='libcurl', args='--cflags --libs', atleast_version='7.19.1', uselib_store='CURL', mandatory=True)
 224
 225     # libicu
 226     if conf.check_cfg(package='icu-i18n', args='--cflags --libs', uselib_store='ICU', mandatory=False) is None:
 227         if conf.check_cfg(package='icu', args='--cflags --libs', uselib_store='ICU', mandatory=False) is None:
 228             conf.check_cxx(fragment="""
 229                             #include <unicode/ucsdet.h>
 230                             int main(void) {
 231                                 UErrorCode status = U_ZERO_ERROR;
 232                                 UCharsetDetector* detector = ucsdet_open (&status);
 233                                 return 0; }\n
 234                             """,
 235                        mandatory=True,
 236                        msg='Checking for libicu',
 237                        okmsg='yes',
 238                        libpath=['/usr/local/lib', '/usr/lib', '/usr/lib/x86_64-linux-gnu'],
 239                        lib=['icuio', 'icui18n', 'icudata', 'icuuc'],
 240                        uselib_store='ICU')
 241
 242     # libsamplerate
 243     conf.check_cfg(package='samplerate', args='--cflags --libs', uselib_store='SAMPLERATE', mandatory=True)
 244
 245     # glib
 246     conf.check_cfg(package='glib-2.0', args='--cflags --libs', uselib_store='GLIB', mandatory=True)
 247
 248     # libzip
 249     conf.check_cfg(package='libzip', args='--cflags --libs', uselib_store='ZIP', mandatory=True)
 250     conf.check_cxx(fragment="""
 251                             #include <zip.h>
 252                             int main() { zip_source_t* foo; }
 253                             """,
 254                    mandatory=False,
 255                    msg="Checking for zip_source_t",
 256                    uselib="ZIP",
 257                    define_name='DCPOMATIC_HAVE_ZIP_SOURCE_T'
 258                    )
 259
 260     # libbz2; must be explicitly linked on macOS for some reason
 261     conf.check_cxx(fragment="""
 262                             #include <bzlib.h>
 263                             int main() { BZ2_bzCompressInit(0, 0, 0, 0); }
 264                             """,
 265                    mandatory=True,
 266                    msg="Checking for libbz2",
 267                    okmsg='yes',
 268                    lib='bz2',
 269                    uselib_store="BZ2"
 270                    )
 271
 272     # fontconfig
 273     conf.check_cfg(package='fontconfig', args='--cflags --libs', uselib_store='FONTCONFIG', mandatory=True)
 274
 275     # pangomm
 276     conf.check_cfg(package='pangomm-1.4', args='--cflags --libs', uselib_store='PANGOMM', mandatory=True)
 277
 278     # cairomm
 279     conf.check_cfg(package='cairomm-1.0', args='--cflags --libs', uselib_store='CAIROMM', mandatory=True)
 280
 281     # leqm_nrt
 282     conf.check_cfg(package='leqm_nrt', args='--cflags --libs', uselib_store='LEQM_NRT', mandatory=True)
 283
 284     test_cxxflags = ''
 285     if have_c11:
 286         test_cxxflags = '-std=c++11'
 287
 288     # See if we have Cairo::ImageSurface::format_stride_for_width; Centos 5 does not
 289     conf.check_cxx(fragment="""
 290                             #include <cairomm/cairomm.h>
 291                             int main(void) {
 292                                 Cairo::ImageSurface::format_stride_for_width (Cairo::FORMAT_ARGB32, 1024);\n
 293                                 return 0; }\n
 294                             """,
 295                        mandatory=False,
 296                        cxxflags=test_cxxflags,
 297                        msg='Checking for format_stride_for_width',
 298                        okmsg='yes',
 299                        includes=conf.env['INCLUDES_CAIROMM'],
 300                        uselib='CAIROMM',
 301                        define_name='DCPOMATIC_HAVE_FORMAT_STRIDE_FOR_WIDTH')
 302
 303     # See if we have Pango::Layout::show_in_cairo_context; Centos 5 does not
 304     conf.check_cxx(fragment="""
 305                             #include <pangomm.h>
 306                             int main(void) {
 307                                 Cairo::RefPtr<Cairo::Context> context;
 308                                 Glib::RefPtr<Pango::Layout> layout;
 309                                 layout->show_in_cairo_context (context);
 310                                 return 0; }\n
 311                             """,
 312                        mandatory=False,
 313                        msg='Checking for show_in_cairo_context',
 314                        cxxflags=test_cxxflags,
 315                        okmsg='yes',
 316                        includes=conf.env['INCLUDES_PANGOMM'],
 317                        uselib='PANGOMM',
 318                        define_name='DCPOMATIC_HAVE_SHOW_IN_CAIRO_CONTEXT')
 319
 320
 321     # libcxml
 322     if conf.options.static_cxml:
 323         conf.check_cfg(package='libcxml', atleast_version='0.16.0', args='--cflags', uselib_store='CXML', mandatory=True)
 324         conf.env.STLIB_CXML = ['cxml']
 325     else:
 326         conf.check_cfg(package='libcxml', atleast_version='0.16.0', args='--cflags --libs', uselib_store='CXML', mandatory=True)
 327
 328     # libssh
 329     if conf.options.static_ssh:
 330         conf.env.STLIB_SSH = ['ssh']
 331         if conf.options.workaround_gssapi:
 332             conf.env.LIB_SSH = ['gssapi_krb5']
 333     else:
 334         conf.check_cxx(fragment="""
 335                                #include <libssh/libssh.h>\n
 336                                int main () {\n
 337                                ssh_new ();\n
 338                                return 0;\n
 339                                }
 340                                """,
 341                       msg='Checking for library libssh',
 342                       mandatory=True,
 343                       lib='ssh',
 344                       uselib_store='SSH')
 345
 346     # libdcp
 347     if conf.options.static_dcp:
 348         conf.check_cfg(package='libdcp-1.0', atleast_version='1.6.7', args='--cflags', uselib_store='DCP', mandatory=True)
 349         conf.env.DEFINES_DCP = [f.replace('\\', '') for f in conf.env.DEFINES_DCP]
 350         conf.env.STLIB_DCP = ['dcp-1.0', 'asdcp-carl', 'kumu-carl', 'openjp2']
 351         conf.env.LIB_DCP = ['glibmm-2.4', 'ssl', 'crypto', 'bz2', 'xslt', 'xerces-c']
 352     else:
 353         conf.check_cfg(package='libdcp-1.0', atleast_version='1.6.7', args='--cflags --libs', uselib_store='DCP', mandatory=True)
 354         conf.env.DEFINES_DCP = [f.replace('\\', '') for f in conf.env.DEFINES_DCP]
 355
 356     # libsub
 357     if conf.options.static_sub:
 358         conf.check_cfg(package='libsub-1.0', atleast_version='1.4.7', args='--cflags', uselib_store='SUB', mandatory=True)
 359         conf.env.DEFINES_SUB = [f.replace('\\', '') for f in conf.env.DEFINES_SUB]
 360         conf.env.STLIB_SUB = ['sub-1.0']
 361     else:
 362         conf.check_cfg(package='libsub-1.0', atleast_version='1.4.7', args='--cflags --libs', uselib_store='SUB', mandatory=True)
 363         conf.env.DEFINES_SUB = [f.replace('\\', '') for f in conf.env.DEFINES_SUB]
 364
 365     # libxml++
 366     if conf.options.static_xmlpp:
 367         conf.env.STLIB_XMLPP = ['xml++-2.6']
 368         conf.env.LIB_XMLPP = ['xml2']
 369     else:
 370         conf.check_cfg(package='libxml++-2.6', args='--cflags --libs', uselib_store='XMLPP', mandatory=True)
 371
 372     # libxmlsec
 373     if conf.options.static_xmlsec:
 374         if conf.check_cxx(lib='xmlsec1-openssl', mandatory=False):
 375             conf.env.STLIB_XMLSEC = ['xmlsec1-openssl', 'xmlsec1']
 376         else:
 377             conf.env.STLIB_XMLSEC = ['xmlsec1']
 378     else:
 379         conf.env.LIB_XMLSEC = ['xmlsec1-openssl', 'xmlsec1']
 380
 381     # nettle
 382     conf.check_cfg(package="nettle", args='--cflags --libs', uselib_store='NETTLE', mandatory=True)
 383
 384     # libpng
 385     conf.check_cfg(package='libpng', args='--cflags --libs', uselib_store='PNG', mandatory=True)
 386
 387     # lwext4
 388     if conf.options.enable_disk:
 389         conf.check_cxx(fragment="""
 390                                 #include <lwext4/ext4.h>\n
 391                                 int main() { ext4_mount("ext4_fs", "/mp/", false); }\n
 392                                 """,
 393                                 msg='Checking for lwext4 library',
 394                                 libpath='/usr/local/lib',
 395                                 lib=['lwext4', 'blockdev'],
 396                                 uselib_store='LWEXT4')
 397
 398     if conf.env.TARGET_LINUX and conf.options.enable_disk:
 399         conf.check_cfg(package='polkit-gobject-1', args='--cflags --libs', uselib_store='POLKIT', mandatory=True)
 400
 401     # nanomsg
 402     if conf.options.enable_disk:
 403         if conf.check_cfg(package='nanomsg', args='--cflags --libs', uselib_store='NANOMSG', mandatory=False) is None:
 404             conf.check_cfg(package='libnanomsg', args='--cflags --libs', uselib_store='NANOMSG', mandatory=True)
 405         if conf.env.TARGET_LINUX:
 406             # We link with nanomsg statically on Centos 8 so we need to link this as well
 407             conf.env.LIB_NANOMSG.append('anl')
 408
 409     # FFmpeg
 410     if conf.options.static_ffmpeg:
 411         names = ['avformat', 'avfilter', 'avcodec', 'avutil', 'swscale', 'postproc', 'swresample']
 412         for name in names:
 413             static = subprocess.Popen(shlex.split('pkg-config --static --libs lib%s' % name), stdout=subprocess.PIPE).communicate()[0].decode('utf-8')
 414             libs = []
 415             stlibs = []
 416             include = []
 417             libpath = []
 418             for s in static.split():
 419                 if s.startswith('-L'):
 420                     libpath.append(s[2:])
 421                 elif s.startswith('-I'):
 422                     include.append(s[2:])
 423                 elif s.startswith('-l'):
 424                     if s[2:] not in names:
 425                         libs.append(s[2:])
 426                     else:
 427                         stlibs.append(s[2:])
 428
 429             conf.env['LIB_%s' % name.upper()] = libs
 430             conf.env['STLIB_%s' % name.upper()] = stlibs
 431             conf.env['INCLUDES_%s' % name.upper()] = include
 432             conf.env['LIBPATH_%s' % name.upper()] = libpath
 433     else:
 434         conf.check_cfg(package='libavformat', args='--cflags --libs', uselib_store='AVFORMAT', mandatory=True)
 435         conf.check_cfg(package='libavfilter', args='--cflags --libs', uselib_store='AVFILTER', mandatory=True)
 436         conf.check_cfg(package='libavcodec', args='--cflags --libs', uselib_store='AVCODEC', mandatory=True)
 437         conf.check_cfg(package='libavutil', args='--cflags --libs', uselib_store='AVUTIL', mandatory=True)
 438         conf.check_cfg(package='libswscale', args='--cflags --libs', uselib_store='SWSCALE', mandatory=True)
 439         conf.check_cfg(package='libpostproc', args='--cflags --libs', uselib_store='POSTPROC', mandatory=True)
 440         conf.check_cfg(package='libswresample', args='--cflags --libs', uselib_store='SWRESAMPLE', mandatory=True)
 441
 442     # Check to see if we have our version of FFmpeg that allows us to get at EBUR128 results
 443     conf.check_cxx(fragment="""
 444                             extern "C" {\n
 445                             #include <libavfilter/f_ebur128.h>\n
 446                             }\n
 447                             int main () { av_ebur128_get_true_peaks (0); }\n
 448                             """,
 449                    msg='Checking for EBUR128-patched FFmpeg',
 450                    uselib='AVCODEC AVFILTER',
 451                    define_name='DCPOMATIC_HAVE_EBUR128_PATCHED_FFMPEG',
 452                    mandatory=False)
 453
 454     # Check to see if we have our AVSubtitleRect has a pict member
 455     # Older versions (e.g. that shipped with Ubuntu 16.04) do
 456     conf.check_cxx(fragment="""
 457                             extern "C" {\n
 458                             #include <libavcodec/avcodec.h>\n
 459                             }\n
 460                             int main () { AVSubtitleRect r; r.pict; }\n
 461                             """,
 462                    msg='Checking for AVSubtitleRect::pict',
 463                    cxxflags='-Wno-unused-result -Wno-unused-value -Wdeprecated-declarations -Werror',
 464                    uselib='AVCODEC',
 465                    define_name='DCPOMATIC_HAVE_AVSUBTITLERECT_PICT',
 466                    mandatory=False)
 467
 468     # Check to see if we have our AVComponentDescriptor has a depth_minus1 member
 469     # Older versions (e.g. that shipped with Ubuntu 16.04) do
 470     conf.check_cxx(fragment="""
 471                             extern "C" {\n
 472                             #include <libavutil/pixdesc.h>\n
 473                             }\n
 474                             int main () { AVComponentDescriptor d; d.depth_minus1; }\n
 475                             """,
 476                    msg='Checking for AVComponentDescriptor::depth_minus1',
 477                    cxxflags='-Wno-unused-result -Wno-unused-value -Wdeprecated-declarations -Werror',
 478                    uselib='AVUTIL',
 479                    define_name='DCPOMATIC_HAVE_AVCOMPONENTDESCRIPTOR_DEPTH_MINUS1',
 480                    mandatory=False)
 481
 482     # Hack: the previous two check_cxx calls end up copying their (necessary) cxxflags
 483     # to these variables.  We don't want to use these for the actual build, so clean them out.
 484     conf.env['CXXFLAGS_AVCODEC'] = []
 485     conf.env['CXXFLAGS_AVUTIL'] = []
 486
 487     if conf.env.TARGET_LINUX:
 488         conf.env.LIB_X11 = ['X11']
 489
 490     # Boost
 491     if conf.options.static_boost:
 492         conf.env.STLIB_BOOST_THREAD = ['boost_thread']
 493         conf.env.STLIB_BOOST_FILESYSTEM = ['boost_filesystem%s' % boost_lib_suffix]
 494         conf.env.STLIB_BOOST_DATETIME = ['boost_date_time%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix]
 495         conf.env.STLIB_BOOST_SIGNALS2 = ['boost_signals2']
 496         conf.env.STLIB_BOOST_SYSTEM = ['boost_system']
 497         conf.env.STLIB_BOOST_REGEX = ['boost_regex']
 498     else:
 499         conf.check_cxx(fragment="""
 500                             #include <boost/version.hpp>\n
 501                             #if BOOST_VERSION < 104500\n
 502                             #error boost too old\n
 503                             #endif\n
 504                             int main(void) { return 0; }\n
 505                             """,
 506                        mandatory=True,
 507                        msg='Checking for boost library >= 1.45',
 508                        okmsg='yes',
 509                        errmsg='too old\nPlease install boost version 1.45 or higher.')
 510
 511         conf.check_cxx(fragment="""
 512                             #include <boost/thread.hpp>\n
 513                             int main() { boost::thread t; }\n
 514                             """,
 515                        msg='Checking for boost threading library',
 516                        libpath='/usr/local/lib',
 517                        lib=[boost_thread, 'boost_system%s' % boost_lib_suffix],
 518                        uselib_store='BOOST_THREAD')
 519
 520         conf.check_cxx(fragment="""
 521                             #include <boost/filesystem.hpp>\n
 522                             int main() { boost::filesystem::copy_file ("a", "b"); }\n
 523                             """,
 524                        msg='Checking for boost filesystem library',
 525                        libpath='/usr/local/lib',
 526                        lib=['boost_filesystem%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
 527                        uselib_store='BOOST_FILESYSTEM')
 528
 529         conf.check_cxx(fragment="""
 530                             #include <boost/date_time.hpp>\n
 531                             int main() { boost::gregorian::day_clock::local_day(); }\n
 532                             """,
 533                        msg='Checking for boost datetime library',
 534                        libpath='/usr/local/lib',
 535                        lib=['boost_date_time%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
 536                        uselib_store='BOOST_DATETIME')
 537
 538         conf.check_cxx(fragment="""
 539                             #include <boost/signals2.hpp>\n
 540                             int main() { boost::signals2::signal<void (int)> x; }\n
 541                             """,
 542                        msg='Checking for boost signals2 library',
 543                        uselib_store='BOOST_SIGNALS2')
 544
 545         conf.check_cxx(fragment="""
 546                             #include <boost/regex.hpp>\n
 547                             int main() { boost::regex re ("foo"); }\n
 548                             """,
 549                        msg='Checking for boost regex library',
 550                        lib=['boost_regex%s' % boost_lib_suffix],
 551                        uselib_store='BOOST_REGEX')
 552
 553         # Really just checking for the header here (there's no associated library) but the test
 554         # program has to link with boost_system so I'm doing it this way.
 555         if conf.options.enable_disk:
 556             deps = ['boost_system%s' % boost_lib_suffix]
 557             if conf.env.TARGET_WINDOWS:
 558                 deps.append('ws2_32')
 559                 deps.append('boost_filesystem%s' % boost_lib_suffix)
 560             conf.check_cxx(fragment="""
 561                                 #include <boost/process.hpp>\n
 562                                 int main() { new boost::process::child("foo"); }\n
 563                                 """,
 564                            cxxflags='-Wno-unused-parameter',
 565                            msg='Checking for boost process library',
 566                            lib=deps,
 567                            uselib_store='BOOST_PROCESS')
 568
 569     # libxml++ requires glibmm and versions of glibmm 2.45.31 and later
 570     # must be built with -std=c++11 as they use c++11
 571     # features and c++11 is not (yet) the default in gcc.
 572     glibmm_version = conf.cmd_and_log(['pkg-config', '--modversion', 'glibmm-2.4'], output=Context.STDOUT, quiet=Context.BOTH)
 573     s = glibmm_version.split('.')
 574     v = (int(s[0]) << 16) | (int(s[1]) << 8) | int(s[2])
 575     if v >= 0x022D1F:
 576         conf.env.append_value('CXXFLAGS', '-std=c++11')
 577
 578     # Other stuff
 579
 580     conf.find_program('msgfmt', var='MSGFMT')
 581     conf.check(header_name='valgrind/memcheck.h', mandatory=False)
 582
 583     datadir = conf.env.DATADIR
 584     if not datadir:
 585         datadir = os.path.join(conf.env.PREFIX, 'share')
 586
 587     conf.define('LOCALEDIR', os.path.join(datadir, 'locale'))
 588     conf.define('DATADIR', datadir)
 589
 590     conf.recurse('src')
 591     if not conf.env.DISABLE_TESTS:
 592         conf.recurse('test')
 593
 594     Logs.pprint('YELLOW', '')
 595     if conf.env.TARGET_WINDOWS:
 596         Logs.pprint('YELLOW', '\t' + 'Target'.ljust(25) + ': Windows')
 597     elif conf.env.TARGET_LINUX:
 598         Logs.pprint('YELLOW', '\t' + 'Target'.ljust(25) + ': Linux')
 599     elif conf.env.TARGET_OSX:
 600         Logs.pprint('YELLOW', '\t' + 'Target'.ljust(25) + ': OS X')
 601
 602     def report(name, variable):
 603         linkage = ''
 604         if variable:
 605             linkage = 'static'
 606         else:
 607             linkage = 'dynamic'
 608         Logs.pprint('YELLOW', '\t%s: %s' % (name.ljust(25), linkage))
 609
 610     report('DCP-o-matic libraries', conf.options.static_dcpomatic)
 611     report('Boost', conf.options.static_boost)
 612     report('wxWidgets', conf.options.static_wxwidgets)
 613     report('FFmpeg', conf.options.static_ffmpeg)
 614     report('libxml++', conf.options.static_xmlpp)
 615     report('xmlsec', conf.options.static_xmlsec)
 616     report('libssh', conf.options.static_ssh)
 617     report('libcxml', conf.options.static_cxml)
 618     report('libdcp', conf.options.static_dcp)
 619     report('libcurl', conf.options.static_curl)
 620
 621     Logs.pprint('YELLOW', '')
 622
 623 def download_supporters(can_fail):
 624     r = os.system('curl -m 2 -s -f https://dcpomatic.com/supporters.cc > src/wx/supporters.cc')
 625     if (r >> 8) == 0:
 626         r = os.system('curl -s -f https://dcpomatic.com/subscribers.cc > src/wx/subscribers.cc')
 627     if (r >> 8) != 0:
 628         if can_fail:
 629             raise Exception("Could not download supporters lists (%d)" % (r >> 8))
 630         else:
 631             f = open('src/wx/supporters.cc', 'w')
 632             print('supported_by.Add(wxT("Debug build - no supporters lists available"));', file=f)
 633             f.close()
 634             f = open('src/wx/subscribers.cc', 'w')
 635             print('subscribers.Add(wxT("Debug build - no subscribers lists available"));', file=f)
 636             f.close()
 637
 638 def build(bld):
 639     create_version_cc(VERSION, bld.env.CXXFLAGS)
 640     download_supporters(not bld.env.DEBUG)
 641
 642     bld.recurse('src')
 643     bld.recurse('graphics')
 644
 645     if not bld.env.DISABLE_TESTS:
 646         bld.recurse('test')
 647     if bld.env.TARGET_WINDOWS:
 648         bld.recurse('platform/windows')
 649     if bld.env.TARGET_LINUX:
 650         bld.recurse('platform/linux')
 651     if bld.env.TARGET_OSX:
 652         bld.recurse('platform/osx')
 653
 654     if not bld.env.TARGET_WINDOWS:
 655         bld.install_files('${PREFIX}/share/dcpomatic2', 'fonts/LiberationSans-Regular.ttf')
 656         bld.install_files('${PREFIX}/share/dcpomatic2', 'fonts/LiberationSans-Italic.ttf')
 657         bld.install_files('${PREFIX}/share/dcpomatic2', 'fonts/LiberationSans-Bold.ttf')
 658
 659     bld.add_post_fun(post)
 660
 661 def git_revision():
 662     if not os.path.exists('.git'):
 663         return None
 664
 665     cmd = "LANG= git log --abbrev HEAD^..HEAD ."
 666     output = subprocess.Popen(cmd, shell=True, stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0].splitlines()
 667     if len(output) == 0:
 668         return None
 669     o = output[0].decode('utf-8')
 670     return o.replace("commit ", "")[0:10]
 671
 672 def dist(ctx):
 673     r = git_revision()
 674     if r is not None:
 675         f = open('.git_revision', 'w')
 676         print(r, file=f)
 677         f.close()
 678
 679     ctx.excl = """
 680                TODO core *~ src/wx/*~ src/lib/*~ builds/*~ doc/manual/*~ src/tools/*~ *.pyc .waf* build .git
 681                deps alignment hacks sync *.tar.bz2 *.exe .lock* *build-windows doc/manual/pdf doc/manual/html
 682                GRSYMS GRTAGS GSYMS GTAGS compile_commands.json
 683                """
 684
 685 def create_version_cc(version, cxx_flags):
 686     commit = git_revision()
 687     if commit is None and os.path.exists('.git_revision'):
 688         f = open('.git_revision', 'r')
 689         commit = f.readline().strip()
 690
 691     if commit is None:
 692         commit = 'release'
 693
 694     try:
 695         text =  '#include "version.h"\n'
 696         text += 'char const * dcpomatic_git_commit = \"%s\";\n' % commit
 697         text += 'char const * dcpomatic_version = \"%s\";\n' % version
 698
 699         t = ''
 700         for f in cxx_flags:
 701             f = f.replace('"', '\\"')
 702             t += f + ' '
 703         text += 'char const * dcpomatic_cxx_flags = \"%s\";\n' % t[:-1]
 704
 705         print('Writing version information to src/lib/version.cc')
 706         o = open('src/lib/version.cc', 'w')
 707         o.write(text)
 708         o.close()
 709     except IOError:
 710         print('Could not open src/lib/version.cc for writing\n')
 711         sys.exit(-1)
 712
 713 def post(ctx):
 714     if ctx.cmd == 'install' and ctx.env.TARGET_LINUX:
 715         ctx.exec_command('/sbin/ldconfig')
 716         # setuid root executables
 717         for e in ['dcpomatic2_uuid', 'dcpomatic2_disk_writer']:
 718             # I can't find anything which tells me where things have been installed to,
 719             # so here's some nasty hacks to guess.
 720             debian = os.path.join(ctx.out_dir, '../debian/dcpomatic/usr/bin/%s' % e)
 721             prefix = os.path.join(ctx.env['INSTALL_PREFIX'], 'bin/%s' % e)
 722             if os.path.exists(debian):
 723                 os.chmod(debian, 0o4755)
 724             if os.path.exists(prefix):
 725                 os.chmod(prefix, 0o4755)
 726
 727 def pot(bld):
 728     bld.recurse('src')
 729
 730 def pot_merge(bld):
 731     bld.recurse('src')
 732
 733 def tags(bld):
 734     os.system('etags src/lib/*.cc src/lib/*.h src/wx/*.cc src/wx/*.h src/tools/*.cc')
 735
 736 def cppcheck(bld):
 737     os.system('cppcheck --enable=all --quiet .')