wscript

   1 #
   2 #    Copyright (C) 2012-2021 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 libdcp_version = '1.8.5'
  39 libsub_version = '1.6.5'
  40
  41 this_version = subprocess.Popen(shlex.split('git tag -l --points-at HEAD'), stdout=subprocess.PIPE).communicate()[0]
  42 last_version = subprocess.Popen(shlex.split('git describe --tags --match v* --abbrev=0'), stdout=subprocess.PIPE).communicate()[0]
  43
  44 # Python 2/3 compatibility; I don't really understand what's going on here
  45 if not isinstance(this_version, str):
  46     this_version = this_version.decode('utf-8')
  47 if not isinstance(last_version, str):
  48     last_version = last_version.decode('utf-8')
  49
  50 if this_version == '':
  51     VERSION = '%sdevel' % last_version[1:].strip()
  52 else:
  53     VERSION = this_version[1:].strip()
  54
  55 def options(opt):
  56     opt.load('compiler_cxx')
  57     opt.load('winres')
  58
  59     opt.add_option('--enable-debug',      action='store_true', default=False, help='build with debugging information and without optimisation')
  60     opt.add_option('--disable-gui',       action='store_true', default=False, help='disable building of GUI tools')
  61     opt.add_option('--disable-tests',     action='store_true', default=False, help='disable building of tests')
  62     opt.add_option('--target-windows',    action='store_true', default=False, help='set up to do a cross-compile for Windows')
  63     opt.add_option('--target-macos-arm64', action='store_true', default=False, help='set up to do a cross-compile for macOS arm64')
  64     opt.add_option('--static-dcpomatic',  action='store_true', default=False, help='link to components of DCP-o-matic statically')
  65     opt.add_option('--static-boost',      action='store_true', default=False, help='link statically to Boost')
  66     opt.add_option('--static-wxwidgets',  action='store_true', default=False, help='link statically to wxWidgets')
  67     opt.add_option('--static-ffmpeg',     action='store_true', default=False, help='link statically to FFmpeg')
  68     opt.add_option('--static-xmlpp',      action='store_true', default=False, help='link statically to libxml++')
  69     opt.add_option('--static-xmlsec',     action='store_true', default=False, help='link statically to xmlsec')
  70     opt.add_option('--static-ssh',        action='store_true', default=False, help='link statically to libssh')
  71     opt.add_option('--static-cxml',       action='store_true', default=False, help='link statically to libcxml')
  72     opt.add_option('--static-dcp',        action='store_true', default=False, help='link statically to libdcp')
  73     opt.add_option('--static-sub',        action='store_true', default=False, help='link statically to libsub')
  74     opt.add_option('--static-curl',       action='store_true', default=False, help='link statically to libcurl')
  75     opt.add_option('--workaround-gssapi', action='store_true', default=False, help='link to gssapi_krb5')
  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.destdir == '':
  98         conf.env.INSTALL_PREFIX = conf.options.prefix
  99     else:
 100         conf.env.INSTALL_PREFIX = conf.options.destdir
 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                                        '-std=c++11'])
 114
 115     if conf.options.warnings_are_errors:
 116         conf.env.append_value('CXXFLAGS', '-Werror')
 117
 118     if not conf.options.target_macos_arm64:
 119         conf.env.append_value('CXXFLAGS', '-msse')
 120
 121     if conf.env['CXX_NAME'] == 'gcc':
 122         gcc = conf.env['CC_VERSION']
 123         if int(gcc[0]) >= 8:
 124             # I tried and failed to ignore these with _Pragma
 125             conf.env.append_value('CXXFLAGS', ['-Wno-cast-function-type'])
 126         have_c11 = int(gcc[0]) >= 4 and int(gcc[1]) >= 8 and int(gcc[2]) >= 1
 127         # Most gccs still give these warnings from boost::optional
 128         conf.env.append_value('CXXFLAGS', ['-Wno-maybe-uninitialized'])
 129     else:
 130         have_c11 = False
 131
 132     if conf.options.enable_debug:
 133         conf.env.append_value('CXXFLAGS', ['-g', '-DDCPOMATIC_DEBUG', '-fno-omit-frame-pointer'])
 134     else:
 135         conf.env.append_value('CXXFLAGS', '-O2')
 136
 137     if conf.options.enable_disk:
 138         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_DISK')
 139
 140     if conf.options.use_lld:
 141         try:
 142             conf.find_program('ld.lld')
 143             conf.env.append_value('LINKFLAGS', '-fuse-ld=lld')
 144         except conf.errors.ConfigurationError:
 145             pass
 146
 147     #
 148     # Windows/Linux/OS X specific
 149     #
 150
 151     # Windows
 152     if conf.env.TARGET_WINDOWS:
 153         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_WINDOWS')
 154         conf.env.append_value('CXXFLAGS', '-DWIN32_LEAN_AND_MEAN')
 155         conf.env.append_value('CXXFLAGS', '-DBOOST_USE_WINDOWS_H')
 156         conf.env.append_value('CXXFLAGS', '-DBOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN')
 157         conf.env.append_value('CXXFLAGS', '-mfpmath=sse')
 158         conf.env.append_value('CXXFLAGS', '-Wcast-align')
 159         wxrc = os.popen('wx-config --rescomp').read().split()[1:]
 160         conf.env.append_value('WINRCFLAGS', wxrc)
 161         if conf.options.enable_debug:
 162             conf.env.append_value('CXXFLAGS', ['-mconsole'])
 163             conf.env.append_value('LINKFLAGS', ['-mconsole'])
 164         conf.check(lib='ws2_32', uselib_store='WINSOCK2', msg="Checking for library winsock2")
 165         conf.check(lib='dbghelp', uselib_store='DBGHELP', msg="Checking for library dbghelp")
 166         conf.check(lib='shlwapi', uselib_store='SHLWAPI', msg="Checking for library shlwapi")
 167         conf.check(lib='mswsock', uselib_store='MSWSOCK', msg="Checking for library mswsock")
 168         conf.check(lib='ole32', uselib_store='OLE32', msg="Checking for library ole32")
 169         conf.check(lib='dsound', uselib_store='DSOUND', msg="Checking for library dsound")
 170         conf.check(lib='winmm', uselib_store='WINMM', msg="Checking for library winmm")
 171         conf.check(lib='ksuser', uselib_store='KSUSER', msg="Checking for library ksuser")
 172         conf.check(lib='setupapi', uselib_store='SETUPAPI', msg="Checking for library setupapi")
 173         boost_lib_suffix = '-mt'
 174         boost_thread = 'boost_thread-mt'
 175         conf.check_cxx(fragment="""
 176                                #include <boost/locale.hpp>\n
 177                                int main() { std::locale::global (boost::locale::generator().generate ("")); }\n
 178                                """,
 179                                msg='Checking for boost locale library',
 180                                libpath='/usr/local/lib',
 181                                lib=['boost_locale%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
 182                                uselib_store='BOOST_LOCALE')
 183
 184     # POSIX
 185     if conf.env.TARGET_LINUX or conf.env.TARGET_OSX:
 186         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_POSIX')
 187         boost_lib_suffix = ''
 188         boost_thread = 'boost_thread'
 189         conf.env.append_value('LINKFLAGS', '-pthread')
 190
 191     # Linux
 192     if conf.env.TARGET_LINUX:
 193         conf.env.append_value('CXXFLAGS', '-mfpmath=sse')
 194         conf.env.append_value('CXXFLAGS', '-DLINUX_LOCALE_PREFIX="%s/share/locale"' % conf.env['INSTALL_PREFIX'])
 195         conf.env.append_value('CXXFLAGS', '-DLINUX_SHARE_PREFIX="%s/share"' % conf.env['INSTALL_PREFIX'])
 196         conf.env.append_value('CXXFLAGS', '-DDCPOMATIC_LINUX')
 197         conf.env.append_value('CXXFLAGS', ['-Wlogical-op', '-Wcast-align'])
 198         conf.check(lib='dl', uselib_store='DL', msg='Checking for library dl')
 199
 200     # OSX
 201     if conf.env.TARGET_OSX:
 202         conf.env.append_value('CXXFLAGS', ['-DDCPOMATIC_OSX', '-DGL_SILENCE_DEPRECATION'])
 203         conf.env.append_value('LINKFLAGS', '-headerpad_max_install_names')
 204
 205     #
 206     # Dependencies.
 207     #
 208
 209     # It should be possible to use check_cfg for both dynamic and static linking, but
 210     # e.g. pkg-config --libs --static foo returns some libraries that should be statically
 211     # linked and others that should be dynamic.  This doesn't work too well with waf
 212     # as it wants them separate.
 213
 214     # libcurl
 215     if conf.options.static_curl:
 216         conf.env.STLIB_CURL = ['curl']
 217         conf.env.LIB_CURL = ['ssh2', 'idn']
 218     else:
 219         conf.check_cfg(package='libcurl', args='--cflags --libs', atleast_version='7.19.1', uselib_store='CURL', mandatory=True)
 220
 221     # libicu
 222     if conf.check_cfg(package='icu-i18n', args='--cflags --libs', uselib_store='ICU', mandatory=False) is None:
 223         if conf.check_cfg(package='icu', args='--cflags --libs', uselib_store='ICU', mandatory=False) is None:
 224             conf.check_cxx(fragment="""
 225                             #include <unicode/ucsdet.h>
 226                             int main(void) {
 227                                 UErrorCode status = U_ZERO_ERROR;
 228                                 UCharsetDetector* detector = ucsdet_open (&status);
 229                                 return 0; }\n
 230                             """,
 231                        mandatory=True,
 232                        msg='Checking for libicu',
 233                        okmsg='yes',
 234                        libpath=['/usr/local/lib', '/usr/lib', '/usr/lib/x86_64-linux-gnu'],
 235                        lib=['icuio', 'icui18n', 'icudata', 'icuuc'],
 236                        uselib_store='ICU')
 237
 238     # libsamplerate
 239     conf.check_cfg(package='samplerate', args='--cflags --libs', uselib_store='SAMPLERATE', mandatory=True)
 240
 241     # glib
 242     conf.check_cfg(package='glib-2.0', args='--cflags --libs', uselib_store='GLIB', mandatory=True)
 243
 244     # libzip
 245     conf.check_cfg(package='libzip', args='--cflags --libs', uselib_store='ZIP', mandatory=True)
 246     conf.check_cxx(fragment="""
 247                             #include <zip.h>
 248                             int main() { zip_source_t* foo; }
 249                             """,
 250                    mandatory=False,
 251                    msg="Checking for zip_source_t",
 252                    uselib="ZIP",
 253                    define_name='DCPOMATIC_HAVE_ZIP_SOURCE_T'
 254                    )
 255
 256     # libbz2; must be explicitly linked on macOS for some reason
 257     conf.check_cxx(fragment="""
 258                             #include <bzlib.h>
 259                             int main() { BZ2_bzCompressInit(0, 0, 0, 0); }
 260                             """,
 261                    mandatory=True,
 262                    msg="Checking for libbz2",
 263                    okmsg='yes',
 264                    lib='bz2',
 265                    uselib_store="BZ2"
 266                    )
 267
 268     # fontconfig
 269     conf.check_cfg(package='fontconfig', args='--cflags --libs', uselib_store='FONTCONFIG', mandatory=True)
 270
 271     # pangomm
 272     conf.check_cfg(package='pangomm-1.4', args='--cflags --libs', uselib_store='PANGOMM', mandatory=True)
 273
 274     # cairomm
 275     conf.check_cfg(package='cairomm-1.0', args='--cflags --libs', uselib_store='CAIROMM', mandatory=True)
 276
 277     # leqm_nrt
 278     conf.check_cfg(package='leqm_nrt', args='--cflags --libs', uselib_store='LEQM_NRT', mandatory=True)
 279
 280     # libcxml
 281     if conf.options.static_cxml:
 282         conf.check_cfg(package='libcxml', atleast_version='0.17.0', args='--cflags', uselib_store='CXML', mandatory=True)
 283         conf.env.STLIB_CXML = ['cxml']
 284     else:
 285         conf.check_cfg(package='libcxml', atleast_version='0.16.0', args='--cflags --libs', uselib_store='CXML', mandatory=True)
 286
 287     # libssh
 288     if conf.options.static_ssh:
 289         conf.env.STLIB_SSH = ['ssh']
 290         if conf.options.workaround_gssapi:
 291             conf.env.LIB_SSH = ['gssapi_krb5']
 292     else:
 293         conf.check_cxx(fragment="""
 294                                #include <libssh/libssh.h>\n
 295                                int main () {\n
 296                                ssh_new ();\n
 297                                return 0;\n
 298                                }
 299                                """,
 300                       msg='Checking for library libssh',
 301                       mandatory=True,
 302                       lib='ssh',
 303                       uselib_store='SSH')
 304
 305     # libdcp
 306     if conf.options.static_dcp:
 307         conf.check_cfg(package='libdcp-1.0', atleast_version=libdcp_version, args='--cflags', uselib_store='DCP', mandatory=True)
 308         conf.env.DEFINES_DCP = [f.replace('\\', '') for f in conf.env.DEFINES_DCP]
 309         conf.env.STLIB_DCP = ['dcp-1.0', 'asdcp-carl', 'kumu-carl', 'openjp2']
 310         conf.env.LIB_DCP = ['glibmm-2.4', 'ssl', 'crypto', 'bz2', 'xslt', 'xerces-c']
 311     else:
 312         conf.check_cfg(package='libdcp-1.0', atleast_version=libdcp_version, args='--cflags --libs', uselib_store='DCP', mandatory=True)
 313         conf.env.DEFINES_DCP = [f.replace('\\', '') for f in conf.env.DEFINES_DCP]
 314
 315     # libsub
 316     if conf.options.static_sub:
 317         conf.check_cfg(package='libsub-1.0', atleast_version=libsub_version, args='--cflags', uselib_store='SUB', mandatory=True)
 318         conf.env.DEFINES_SUB = [f.replace('\\', '') for f in conf.env.DEFINES_SUB]
 319         conf.env.STLIB_SUB = ['sub-1.0']
 320     else:
 321         conf.check_cfg(package='libsub-1.0', atleast_version=libsub_version, args='--cflags --libs', uselib_store='SUB', mandatory=True)
 322         conf.env.DEFINES_SUB = [f.replace('\\', '') for f in conf.env.DEFINES_SUB]
 323
 324     # libxml++
 325     if conf.options.static_xmlpp:
 326         conf.env.STLIB_XMLPP = ['xml++-2.6']
 327         conf.env.LIB_XMLPP = ['xml2']
 328     else:
 329         conf.check_cfg(package='libxml++-2.6', args='--cflags --libs', uselib_store='XMLPP', mandatory=True)
 330
 331     # libxmlsec
 332     if conf.options.static_xmlsec:
 333         if conf.check_cxx(lib='xmlsec1-openssl', mandatory=False):
 334             conf.env.STLIB_XMLSEC = ['xmlsec1-openssl', 'xmlsec1']
 335         else:
 336             conf.env.STLIB_XMLSEC = ['xmlsec1']
 337     else:
 338         conf.env.LIB_XMLSEC = ['xmlsec1-openssl', 'xmlsec1']
 339
 340     # nettle
 341     conf.check_cfg(package="nettle", args='--cflags --libs', uselib_store='NETTLE', mandatory=True)
 342
 343     # libpng
 344     conf.check_cfg(package='libpng', args='--cflags --libs', uselib_store='PNG', mandatory=True)
 345
 346     # lwext4
 347     if conf.options.enable_disk:
 348         conf.check_cxx(fragment="""
 349                                 #include <lwext4/ext4.h>\n
 350                                 int main() { ext4_mount("ext4_fs", "/mp/", false); }\n
 351                                 """,
 352                                 msg='Checking for lwext4 library',
 353                                 libpath='/usr/local/lib',
 354                                 lib=['lwext4', 'blockdev'],
 355                                 uselib_store='LWEXT4')
 356
 357     if conf.env.TARGET_LINUX and conf.options.enable_disk:
 358         conf.check_cfg(package='polkit-gobject-1', args='--cflags --libs', uselib_store='POLKIT', mandatory=True)
 359
 360     # nanomsg
 361     if conf.options.enable_disk:
 362         if conf.check_cfg(package='nanomsg', args='--cflags --libs', uselib_store='NANOMSG', mandatory=False) is None:
 363             conf.check_cfg(package='libnanomsg', args='--cflags --libs', uselib_store='NANOMSG', mandatory=True)
 364         if conf.env.TARGET_LINUX:
 365             # We link with nanomsg statically on Centos 8 so we need to link this as well
 366             conf.env.LIB_NANOMSG.append('anl')
 367
 368     # FFmpeg
 369     if conf.options.static_ffmpeg:
 370         names = ['avformat', 'avfilter', 'avcodec', 'avutil', 'swscale', 'postproc', 'swresample']
 371         for name in names:
 372             static = subprocess.Popen(shlex.split('pkg-config --static --libs lib%s' % name), stdout=subprocess.PIPE).communicate()[0].decode('utf-8')
 373             libs = []
 374             stlibs = []
 375             include = []
 376             libpath = []
 377             for s in static.split():
 378                 if s.startswith('-L'):
 379                     libpath.append(s[2:])
 380                 elif s.startswith('-I'):
 381                     include.append(s[2:])
 382                 elif s.startswith('-l'):
 383                     if s[2:] not in names:
 384                         libs.append(s[2:])
 385                     else:
 386                         stlibs.append(s[2:])
 387
 388             conf.env['LIB_%s' % name.upper()] = libs
 389             conf.env['STLIB_%s' % name.upper()] = stlibs
 390             conf.env['INCLUDES_%s' % name.upper()] = include
 391             conf.env['LIBPATH_%s' % name.upper()] = libpath
 392     else:
 393         conf.check_cfg(package='libavformat', args='--cflags --libs', uselib_store='AVFORMAT', mandatory=True)
 394         conf.check_cfg(package='libavfilter', args='--cflags --libs', uselib_store='AVFILTER', mandatory=True)
 395         conf.check_cfg(package='libavcodec', args='--cflags --libs', uselib_store='AVCODEC', mandatory=True)
 396         conf.check_cfg(package='libavutil', args='--cflags --libs', uselib_store='AVUTIL', mandatory=True)
 397         conf.check_cfg(package='libswscale', args='--cflags --libs', uselib_store='SWSCALE', mandatory=True)
 398         conf.check_cfg(package='libpostproc', args='--cflags --libs', uselib_store='POSTPROC', mandatory=True)
 399         conf.check_cfg(package='libswresample', args='--cflags --libs', uselib_store='SWRESAMPLE', mandatory=True)
 400
 401     # Check to see if we have our version of FFmpeg that allows us to get at EBUR128 results
 402     conf.check_cxx(fragment="""
 403                             extern "C" {\n
 404                             #include <libavfilter/f_ebur128.h>\n
 405                             }\n
 406                             int main () { av_ebur128_get_true_peaks (0); }\n
 407                             """,
 408                    msg='Checking for EBUR128-patched FFmpeg',
 409                    uselib='AVCODEC AVFILTER',
 410                    define_name='DCPOMATIC_HAVE_EBUR128_PATCHED_FFMPEG',
 411                    mandatory=False)
 412
 413     # Check to see if we have our AVSubtitleRect has a pict member
 414     # Older versions (e.g. that shipped with Ubuntu 16.04) do
 415     conf.check_cxx(fragment="""
 416                             extern "C" {\n
 417                             #include <libavcodec/avcodec.h>\n
 418                             }\n
 419                             int main () { AVSubtitleRect r; r.pict; }\n
 420                             """,
 421                    msg='Checking for AVSubtitleRect::pict',
 422                    cxxflags='-Wno-unused-result -Wno-unused-value -Wdeprecated-declarations -Werror',
 423                    uselib='AVCODEC',
 424                    define_name='DCPOMATIC_HAVE_AVSUBTITLERECT_PICT',
 425                    mandatory=False)
 426
 427     # Check to see if we have our AVComponentDescriptor has a depth_minus1 member
 428     # Older versions (e.g. that shipped with Ubuntu 16.04) do
 429     conf.check_cxx(fragment="""
 430                             extern "C" {\n
 431                             #include <libavutil/pixdesc.h>\n
 432                             }\n
 433                             int main () { AVComponentDescriptor d; d.depth_minus1; }\n
 434                             """,
 435                    msg='Checking for AVComponentDescriptor::depth_minus1',
 436                    cxxflags='-Wno-unused-result -Wno-unused-value -Wdeprecated-declarations -Werror',
 437                    uselib='AVUTIL',
 438                    define_name='DCPOMATIC_HAVE_AVCOMPONENTDESCRIPTOR_DEPTH_MINUS1',
 439                    mandatory=False)
 440
 441     # See if we have av_register_all and avfilter_register_all
 442     conf.check_cxx(fragment="""
 443                             extern "C" {\n
 444                             #include <libavformat/avformat.h>\n
 445                             #include <libavfilter/avfilter.h>\n
 446                             }\n
 447                             int main () { av_register_all(); avfilter_register_all(); }\n
 448                             """,
 449                    msg='Checking for av_register_all and avfilter_register_all',
 450                    uselib='AVFORMAT AVFILTER',
 451                    define_name='DCPOMATIC_HAVE_AVREGISTER',
 452                    mandatory=False)
 453
 454     # Hack: the previous two check_cxx calls end up copying their (necessary) cxxflags
 455     # to these variables.  We don't want to use these for the actual build, so clean them out.
 456     conf.env['CXXFLAGS_AVCODEC'] = []
 457     conf.env['CXXFLAGS_AVUTIL'] = []
 458
 459     if conf.env.TARGET_LINUX:
 460         conf.env.LIB_X11 = ['X11']
 461
 462     # We support older boosts on Linux so we can use the distribution-provided package
 463     # on Centos 7, but it's good if we can use 1.61 for boost::dll::program_location()
 464     boost_version = ('1.45', '104500') if conf.env.TARGET_LINUX else ('1.61', '106800')
 465
 466     # Boost
 467     if conf.options.static_boost:
 468         conf.env.STLIB_BOOST_THREAD = ['boost_thread']
 469         conf.env.STLIB_BOOST_FILESYSTEM = ['boost_filesystem%s' % boost_lib_suffix]
 470         conf.env.STLIB_BOOST_DATETIME = ['boost_date_time%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix]
 471         conf.env.STLIB_BOOST_SIGNALS2 = ['boost_signals2']
 472         conf.env.STLIB_BOOST_SYSTEM = ['boost_system']
 473         conf.env.STLIB_BOOST_REGEX = ['boost_regex']
 474     else:
 475         conf.check_cxx(fragment="""
 476                             #include <boost/version.hpp>\n
 477                             #if BOOST_VERSION < %s\n
 478                             #error boost too old\n
 479                             #endif\n
 480                             int main(void) { return 0; }\n
 481                             """ % boost_version[1],
 482                        mandatory=True,
 483                        msg='Checking for boost library >= %s' % boost_version[0],
 484                        okmsg='yes',
 485                        errmsg='too old\nPlease install boost version %s or higher.' % boost_version[0])
 486
 487         conf.check_cxx(fragment="""
 488                             #include <boost/thread.hpp>\n
 489                             int main() { boost::thread t; }\n
 490                             """,
 491                        msg='Checking for boost threading library',
 492                        libpath='/usr/local/lib',
 493                        lib=[boost_thread, 'boost_system%s' % boost_lib_suffix],
 494                        uselib_store='BOOST_THREAD')
 495
 496         conf.check_cxx(fragment="""
 497                             #include <boost/filesystem.hpp>\n
 498                             int main() { boost::filesystem::copy_file ("a", "b"); }\n
 499                             """,
 500                        msg='Checking for boost filesystem library',
 501                        libpath='/usr/local/lib',
 502                        lib=['boost_filesystem%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
 503                        uselib_store='BOOST_FILESYSTEM')
 504
 505         conf.check_cxx(fragment="""
 506                             #include <boost/date_time.hpp>\n
 507                             int main() { boost::gregorian::day_clock::local_day(); }\n
 508                             """,
 509                        msg='Checking for boost datetime library',
 510                        libpath='/usr/local/lib',
 511                        lib=['boost_date_time%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
 512                        uselib_store='BOOST_DATETIME')
 513
 514         conf.check_cxx(fragment="""
 515                             #include <boost/signals2.hpp>\n
 516                             int main() { boost::signals2::signal<void (int)> x; }\n
 517                             """,
 518                        msg='Checking for boost signals2 library',
 519                        uselib_store='BOOST_SIGNALS2')
 520
 521         conf.check_cxx(fragment="""
 522                             #include <boost/regex.hpp>\n
 523                             int main() { boost::regex re ("foo"); }\n
 524                             """,
 525                        msg='Checking for boost regex library',
 526                        lib=['boost_regex%s' % boost_lib_suffix],
 527                        uselib_store='BOOST_REGEX')
 528
 529         # Really just checking for the header here (there's no associated library) but the test
 530         # program has to link with boost_system so I'm doing it this way.
 531         if conf.options.enable_disk:
 532             deps = ['boost_system%s' % boost_lib_suffix]
 533             if conf.env.TARGET_WINDOWS:
 534                 deps.append('ws2_32')
 535                 deps.append('boost_filesystem%s' % boost_lib_suffix)
 536             conf.check_cxx(fragment="""
 537                                 #include <boost/process.hpp>\n
 538                                 int main() { new boost::process::child("foo"); }\n
 539                                 """,
 540                            cxxflags='-Wno-unused-parameter',
 541                            msg='Checking for boost process library',
 542                            lib=deps,
 543                            uselib_store='BOOST_PROCESS')
 544
 545     # Other stuff
 546
 547     conf.find_program('msgfmt', var='MSGFMT')
 548     conf.check(header_name='valgrind/memcheck.h', mandatory=False)
 549
 550     datadir = conf.env.DATADIR
 551     if not datadir:
 552         datadir = os.path.join(conf.env.PREFIX, 'share')
 553
 554     conf.define('LOCALEDIR', os.path.join(datadir, 'locale'))
 555     conf.define('DATADIR', datadir)
 556
 557     conf.recurse('src')
 558     if not conf.env.DISABLE_TESTS:
 559         conf.recurse('test')
 560
 561     Logs.pprint('YELLOW', '')
 562     if conf.env.TARGET_WINDOWS:
 563         Logs.pprint('YELLOW', '\t' + 'Target'.ljust(25) + ': Windows')
 564     elif conf.env.TARGET_LINUX:
 565         Logs.pprint('YELLOW', '\t' + 'Target'.ljust(25) + ': Linux')
 566     elif conf.env.TARGET_OSX:
 567         Logs.pprint('YELLOW', '\t' + 'Target'.ljust(25) + ': OS X')
 568
 569     def report(name, variable):
 570         linkage = ''
 571         if variable:
 572             linkage = 'static'
 573         else:
 574             linkage = 'dynamic'
 575         Logs.pprint('YELLOW', '\t%s: %s' % (name.ljust(25), linkage))
 576
 577     report('DCP-o-matic libraries', conf.options.static_dcpomatic)
 578     report('Boost', conf.options.static_boost)
 579     report('wxWidgets', conf.options.static_wxwidgets)
 580     report('FFmpeg', conf.options.static_ffmpeg)
 581     report('libxml++', conf.options.static_xmlpp)
 582     report('xmlsec', conf.options.static_xmlsec)
 583     report('libssh', conf.options.static_ssh)
 584     report('libcxml', conf.options.static_cxml)
 585     report('libdcp', conf.options.static_dcp)
 586     report('libcurl', conf.options.static_curl)
 587
 588     Logs.pprint('YELLOW', '')
 589
 590 def build(bld):
 591     create_version_cc(VERSION, bld.env.CXXFLAGS)
 592
 593     bld.recurse('src')
 594     bld.recurse('graphics')
 595
 596     if not bld.env.DISABLE_TESTS:
 597         bld.recurse('test')
 598     if bld.env.TARGET_WINDOWS:
 599         bld.recurse('platform/windows')
 600     if bld.env.TARGET_LINUX:
 601         bld.recurse('platform/linux')
 602     if bld.env.TARGET_OSX:
 603         bld.recurse('platform/osx')
 604
 605     if not bld.env.TARGET_WINDOWS:
 606         bld.install_files('${PREFIX}/share/dcpomatic2', 'fonts/LiberationSans-Regular.ttf')
 607         bld.install_files('${PREFIX}/share/dcpomatic2', 'fonts/LiberationSans-Italic.ttf')
 608         bld.install_files('${PREFIX}/share/dcpomatic2', 'fonts/LiberationSans-Bold.ttf')
 609
 610     bld.add_post_fun(post)
 611
 612 def git_revision():
 613     if not os.path.exists('.git'):
 614         return None
 615
 616     cmd = "LANG= git log --abbrev HEAD^..HEAD ."
 617     output = subprocess.Popen(cmd, shell=True, stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0].splitlines()
 618     if len(output) == 0:
 619         return None
 620     o = output[0].decode('utf-8')
 621     return o.replace("commit ", "")[0:10]
 622
 623 def dist(ctx):
 624     r = git_revision()
 625     if r is not None:
 626         f = open('.git_revision', 'w')
 627         print(r, file=f)
 628         f.close()
 629
 630     ctx.excl = """
 631                TODO core *~ src/wx/*~ src/lib/*~ builds/*~ doc/manual/*~ src/tools/*~ *.pyc .waf* build .git
 632                deps alignment hacks sync *.tar.bz2 *.exe .lock* *build-windows doc/manual/pdf doc/manual/html
 633                GRSYMS GRTAGS GSYMS GTAGS compile_commands.json
 634                """
 635
 636 def create_version_cc(version, cxx_flags):
 637     commit = git_revision()
 638     if commit is None and os.path.exists('.git_revision'):
 639         f = open('.git_revision', 'r')
 640         commit = f.readline().strip()
 641
 642     if commit is None:
 643         commit = 'release'
 644
 645     try:
 646         text =  '#include "version.h"\n'
 647         text += 'char const * dcpomatic_git_commit = \"%s\";\n' % commit
 648         text += 'char const * dcpomatic_version = \"%s\";\n' % version
 649
 650         t = ''
 651         for f in cxx_flags:
 652             f = f.replace('"', '\\"')
 653             t += f + ' '
 654         text += 'char const * dcpomatic_cxx_flags = \"%s\";\n' % t[:-1]
 655
 656         print('Writing version information to src/lib/version.cc')
 657         o = open('src/lib/version.cc', 'w')
 658         o.write(text)
 659         o.close()
 660     except IOError:
 661         print('Could not open src/lib/version.cc for writing\n')
 662         sys.exit(-1)
 663
 664 def post(ctx):
 665     if ctx.cmd == 'install' and ctx.env.TARGET_LINUX:
 666         ctx.exec_command('/sbin/ldconfig')
 667         # setuid root executable
 668         exe = os.path.join(ctx.env['INSTALL_PREFIX'], 'bin/%s/dcpomatic2_disk_writer')
 669         if os.path.exists(exe):
 670             os.chmod(exe, 0o4755)
 671
 672 def pot(bld):
 673     bld.recurse('src')
 674
 675 def pot_merge(bld):
 676     bld.recurse('src')
 677
 678 def supporters(bld):
 679     r = os.system('curl -m 2 -s -f https://dcpomatic.com/supporters.cc > src/wx/supporters.cc')
 680     if (r >> 8) == 0:
 681         r = os.system('curl -s -f https://dcpomatic.com/subscribers.cc > src/wx/subscribers.cc')
 682     if (r >> 8) != 0:
 683         raise Exception("Could not download supporters lists (%d)" % (r >> 8))
 684
 685 def tags(bld):
 686     os.system('etags src/lib/*.cc src/lib/*.h src/wx/*.cc src/wx/*.h src/tools/*.cc')
 687
 688 def cppcheck(bld):
 689     os.system('cppcheck --enable=all --quiet .')