configure.ac

   1 dnl Process this file with autoconf to produce a configure script.
   2 dnl
   3 dnl Copyright (c) 2017 EfficiOS, Inc.
   4 dnl
   5 dnl Permission is hereby granted, free of charge, to any person obtaining a copy
   6 dnl of this software and associated documentation files (the "Software"), to deal
   7 dnl in the Software without restriction, including without limitation the rights
   8 dnl to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 dnl copies of the Software, and to permit persons to whom the Software is
  10 dnl furnished to do so, subject to the following conditions:
  11 dnl
  12 dnl The above copyright notice and this permission notice shall be included in
  13 dnl all copies or substantial portions of the Software.
  14 dnl
  15 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 dnl IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 dnl FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18 dnl AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 dnl LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 dnl OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21 dnl SOFTWARE.
  22
  23 ##                     ##
  24 ## Autoconf base setup ##
  25 ##                     ##
  26
  27 AC_PREREQ([2.50])
  28
  29 m4_define([bt_version_major], [2])
  30 m4_define([bt_version_minor], [0])
  31 m4_define([bt_version_patch], [4])
  32 m4_define([bt_version_dev_stage], [])
  33 m4_define([bt_version], bt_version_major[.]bt_version_minor[.]bt_version_patch[]bt_version_dev_stage)
  34 m4_define([bt_version_name], [Amqui])
  35
  36 AC_INIT([babeltrace2], bt_version, [jeremie dot galarneau at efficios dot com], [], [https://efficios.com/babeltrace/])
  37 AC_PROG_SED
  38
  39 # Following the numbering scheme proposed by libtool for the library version
  40 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
  41 m4_define([bt_lib_version_current], [0])
  42 m4_define([bt_lib_version_revision], [0])
  43 m4_define([bt_lib_version_age], [0])
  44 m4_define([bt_lib_version], bt_lib_version_current[:]bt_lib_version_revision[:]bt_lib_version_age)
  45
  46 bt_version_description="Amqui (/ɒmkwiː/) is a town in eastern Québec, Canada, at the base of the Gaspé peninsula in Bas-Saint-Laurent. Located at the confluence of the Humqui and Matapédia Rivers, its proximity to woodlands makes it a great destination for outdoor activities such as camping, hiking, and mountain biking."
  47 bt_version_description_c_safe=$(echo $bt_version_description | $SED 's/"/\\"/g')
  48
  49 AC_SUBST([BABELTRACE_LIBRARY_VERSION], bt_lib_version)
  50
  51 AC_CONFIG_HEADERS([src/common/config.h])
  52 AC_CONFIG_AUX_DIR([config])
  53 AC_CONFIG_MACRO_DIR([m4])
  54
  55 AC_DEFINE([BT_VERSION_MAJOR], bt_version_major, [Babeltrace major version])
  56 AC_DEFINE([BT_VERSION_MINOR], bt_version_minor, [Babeltrace minor version])
  57 AC_DEFINE([BT_VERSION_PATCH], bt_version_patch, [Babeltrace patch version])
  58 AC_DEFINE([BT_VERSION_DEV_STAGE], ["]bt_version_dev_stage["], [Babeltrace version development stage (can be empty)])
  59 AC_DEFINE([BT_VERSION_NAME], ["]bt_version_name["], [Babeltrace version name])
  60 AC_DEFINE_UNQUOTED([BT_VERSION_DESCRIPTION], ["$bt_version_description_c_safe"], [Babeltrace version description])
  61
  62 AC_CANONICAL_TARGET
  63 AC_CANONICAL_HOST
  64
  65
  66 ##                     ##
  67 ## Automake base setup ##
  68 ##                     ##
  69
  70 AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip tar-ustar nostdinc])
  71 AM_MAINTAINER_MODE([enable])
  72
  73 # Enable silent rules if available (Introduced in AM 1.11)
  74 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
  75
  76
  77 ##                      ##
  78 ## OS specific defaults ##
  79 ##                      ##
  80
  81 MINGW32=no
  82 DEFAULT_ENABLE_DEBUG_INFO=yes
  83 LT_NO_UNDEFINED=""
  84 AS_CASE([$host_os],
  85   [solaris*|darwin*],
  86     [
  87         DEFAULT_ENABLE_DEBUG_INFO=no
  88     ],
  89   [cygwin*],
  90     [
  91         DEFAULT_ENABLE_DEBUG_INFO=no
  92         LT_NO_UNDEFINED="-no-undefined"
  93     ],
  94   [mingw*],
  95     [
  96         MINGW32=yes
  97         DEFAULT_ENABLE_DEBUG_INFO=no
  98         LT_NO_UNDEFINED="-no-undefined"
  99     ]
 100 )
 101
 102 AM_CONDITIONAL([BABELTRACE_BUILD_WITH_MINGW], [test "x$MINGW32" = "xyes"])
 103 AC_SUBST(LT_NO_UNDEFINED)
 104
 105
 106 ##                   ##
 107 ## C compiler checks ##
 108 ##                   ##
 109
 110 AC_USE_SYSTEM_EXTENSIONS
 111 AC_SYS_LARGEFILE
 112
 113 # Choose the c compiler
 114 AC_PROG_CC
 115
 116 # Make sure the c compiler supports C99
 117 AC_PROG_CC_C99([], [AC_MSG_ERROR([The compiler does not support C99])])
 118
 119 # Make sure the c compiler supports __attributes__
 120 AX_C___ATTRIBUTE__
 121 AS_IF([test "x$ax_cv___attribute__" != "xyes"],
 122   [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
 123
 124 # Make sur we have pthread support
 125 AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])])
 126
 127 # Checks for typedefs, structures, and compiler characteristics.
 128 AC_C_INLINE
 129 AC_C_TYPEOF
 130 AC_TYPE_PID_T
 131 AC_TYPE_SIZE_T
 132 AC_TYPE_INT16_T
 133 AC_TYPE_INT32_T
 134 AC_TYPE_INT64_T
 135 AC_TYPE_INT8_T
 136 AC_TYPE_OFF_T
 137 AC_TYPE_SSIZE_T
 138 AC_TYPE_UINT16_T
 139 AC_TYPE_UINT32_T
 140 AC_TYPE_UINT64_T
 141 AC_TYPE_UINT8_T
 142 AC_CHECK_TYPES([ptrdiff_t])
 143
 144
 145 ##               ##
 146 ## Header checks ##
 147 ##               ##
 148
 149 AC_HEADER_STDBOOL
 150 AC_CHECK_HEADERS([ \
 151         fcntl.h \
 152         float.h \
 153         ftw.h \
 154         libintl.h \
 155         limits.h \
 156         malloc.h \
 157         netdb.h \
 158         netinet/in.h \
 159         stddef.h \
 160         sys/socket.h \
 161         sys/time.h
 162 ])
 163
 164
 165 ##               ##
 166 ## Linker checks ##
 167 ##               ##
 168
 169 # Check if the linker supports no-as-needed
 170 AX_APPEND_LINK_FLAGS([-Wl,--no-as-needed], [LD_NO_AS_NEEDED])
 171 AC_SUBST([LD_NO_AS_NEEDED])
 172
 173 # Check if the linker supports whole-archive
 174 AX_CHECK_LINK_FLAG([-Wl,--whole-archive,--no-whole-archive],
 175   [
 176     AC_SUBST([LD_WHOLE_ARCHIVE], [-Wl,--whole-archive,])
 177     AC_SUBST([LD_NO_WHOLE_ARCHIVE], [,--no-whole-archive])
 178   ],[
 179     # Fallback to force_load for the macOS linker
 180     AX_CHECK_LINK_FLAG([-Wl,-force_load],
 181       [
 182         AC_SUBST([LD_WHOLE_ARCHIVE], [-Wl,-force_load,])
 183         AC_SUBST([LD_NO_WHOLE_ARCHIVE], [])
 184       ],[
 185         AC_MSG_WARN([Can't find a linker option to force the inclusion of the static plugin archive objects.])
 186       ]
 187     )
 188   ]
 189 )
 190
 191 # Initialize and configure libtool
 192 LT_INIT([win32-dll])
 193
 194
 195 ##                 ##
 196 ## Programs checks ##
 197 ##                 ##
 198
 199 AC_PROG_MAKE_SET
 200 AC_PROG_MKDIR_P
 201 AC_PROG_LN_S
 202 AC_PATH_PROG([report_fold], [fold])
 203
 204 # set $IN_GIT_REPO if we're in the Git repository; the `bootstrap` file
 205 # is not distributed in tarballs
 206 AS_IF([test -f "$srcdir/bootstrap"], [in_git_repo=yes], [in_git_repo=no])
 207 AM_CONDITIONAL([IN_GIT_REPO], [test "x$in_git_repo" = "xyes"])
 208
 209 # check for bison
 210 AC_PROG_YACC
 211 AX_PROG_BISON_VERSION([2.5], [have_bison=yes])
 212
 213 AS_IF([test "x$have_bison" != "xyes"], [
 214   AS_IF([test "x$in_git_repo" = "xyes"], [
 215     AC_MSG_FAILURE([dnl
 216 Bison >= 2.4 is required when building from the Git repository. You can
 217 set the YACC variable to override automatic detection.
 218     ])
 219   ], [
 220     AC_MSG_WARN([dnl
 221 Missing Bison >= 2.4. Note that the parser files are already built in
 222 this distribution tarball, so Bison is only needed if you intend to
 223 modify their sources. You can set the YACC variable to override automatic
 224 detection.
 225     ])
 226   ])
 227 ])
 228 AM_CONDITIONAL([HAVE_BISON], [test "x$have_bison" = "xyes"])
 229
 230 # check for flex
 231 AC_PROG_LEX
 232 AX_PROG_FLEX_VERSION([2.5.35], [have_flex=yes])
 233
 234 AS_IF([test "x$have_flex" != "xyes"], [
 235   AS_IF([test "x$in_git_repo" = "xyes"], [
 236     AC_MSG_FAILURE([dnl
 237 Flex >= 2.5.35 is required when building from the Git repository. You can
 238 set the LEX variable to override automatic detection.
 239     ])
 240   ], [
 241     AC_MSG_WARN([dnl
 242 Missing Flex >= 2.5.35. Note that the lexer files are already built in
 243 this distribution tarball, so Flex is only needed if you intend to
 244 modify their sources. You can set the LEX variable to override automatic
 245 detection.
 246     ])
 247   ])
 248 ])
 249 AM_CONDITIONAL([HAVE_FLEX], [test "x$have_flex" = "xyes"])
 250
 251
 252 ##                ##
 253 ## Library checks ##
 254 ##                ##
 255
 256 # Check what libraries are required on this platform to link sockets programs.
 257 AX_LIB_SOCKET_NSL
 258
 259 # Check for glib >= 2.28 with gmodule support
 260 AM_PATH_GLIB_2_0([2.28.0], [],
 261   AC_MSG_ERROR([glib >= 2.28 is required - download it from ftp://ftp.gtk.org/pub/gtk]),
 262   [gmodule-no-export]
 263 )
 264
 265 # Checks for library functions.
 266 AC_FUNC_ALLOCA
 267 AC_FUNC_FORK
 268 AC_FUNC_MKTIME
 269 AC_FUNC_MMAP
 270 AC_FUNC_STRERROR_R
 271 AC_FUNC_STRNLEN
 272 AC_CHECK_FUNCS([ \
 273         atexit \
 274         dup2 \
 275         ftruncate \
 276         gethostbyname \
 277         gettimeofday \
 278         localtime_r \
 279         memchr \
 280         memset \
 281         mkdir \
 282         mkdtemp \
 283         munmap \
 284         rmdir \
 285         setenv \
 286         socket \
 287         strchr \
 288         strdup \
 289         strerror \
 290         strndup \
 291         strnlen \
 292         strrchr \
 293         strstr \
 294         strtoul \
 295         strtoull \
 296         tzset \
 297 ])
 298
 299 # AC_FUNC_MALLOC causes problems when cross-compiling.
 300 #AC_FUNC_MALLOC
 301 #AC_FUNC_REALLOC
 302
 303 # Check for fmemopen
 304 AC_CHECK_LIB([c], [fmemopen],
 305   [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_FMEMOPEN], 1, [Has fmemopen support.])]
 306 )
 307
 308 # Check for open_memstream
 309 AC_CHECK_LIB([c], [open_memstream],
 310   [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_OPEN_MEMSTREAM], 1, [Has open_memstream support.])]
 311 )
 312
 313 # Check for posix_fallocate
 314 AC_CHECK_LIB([c], [posix_fallocate],
 315   [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_POSIX_FALLOCATE], 1, [Has posix_fallocate support.])]
 316 )
 317
 318 ##                 ##
 319 ## User variables  ##
 320 ##                 ##
 321
 322 AC_ARG_VAR([PYTHON_INCLUDE], [Include flags for Python, bypassing python-config])
 323 AC_ARG_VAR([PYTHON_LDFLAGS], [Linker flags for Python, bypassing python-config])
 324 AC_ARG_VAR([PYTHON_CONFIG], [Path to python-config])
 325
 326 # BABELTRACE_PLUGINS_DIR: Plugins directory
 327 AC_ARG_VAR([BABELTRACE_PLUGINS_DIR], [built-in plugins install directory [LIBDIR/babeltrace2/plugins]])
 328 AS_IF([test "x$BABELTRACE_PLUGINS_DIR" = x], [BABELTRACE_PLUGINS_DIR='${libdir}/babeltrace2/plugins'])
 329
 330 # BABELTRACE_PLUGIN_PROVIDERS_DIR: Plugin providers directory
 331 AC_ARG_VAR([BABELTRACE_PLUGIN_PROVIDERS_DIR], [built-in plugin providers install directory [LIBDIR/babeltrace2/plugin-providers]])
 332 AS_IF([test "x$BABELTRACE_PLUGIN_PROVIDERS_DIR" = x], [BABELTRACE_PLUGIN_PROVIDERS_DIR='${libdir}/babeltrace2/plugin-providers'])
 333
 334 # BABELTRACE_MINIMAL_LOG_LEVEL:
 335 AC_ARG_VAR([BABELTRACE_MINIMAL_LOG_LEVEL], [Minimal log level for Babeltrace program, library, and plugins (TRACE, DEBUG (default), or INFO)])
 336 AS_IF([test "x$BABELTRACE_MINIMAL_LOG_LEVEL" = x], [BABELTRACE_MINIMAL_LOG_LEVEL="DEBUG"])
 337 AS_IF([test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "TRACE" && \
 338        test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "DEBUG" && \
 339        test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "INFO"],
 340   [AC_MSG_ERROR([Invalid BABELTRACE_MINIMAL_LOG_LEVEL value ($BABELTRACE_MINIMAL_LOG_LEVEL): use TRACE, DEBUG, or INFO.])]
 341 )
 342 AC_DEFINE_UNQUOTED([BT_MINIMAL_LOG_LEVEL], [BT_LOG_$BABELTRACE_MINIMAL_LOG_LEVEL], [Minimal log level])
 343
 344 # BABELTRACE_DEV_MODE:
 345 AC_ARG_VAR([BABELTRACE_DEV_MODE], [Set to 1 to enable the Babeltrace developer mode (enables run-time checks for plugin developers)])
 346 AS_IF([test "x$BABELTRACE_DEV_MODE" = x1], [
 347         AC_DEFINE([BT_DEV_MODE], 1, [Babeltrace developer mode])
 348 ], [BABELTRACE_DEV_MODE=0])
 349
 350 # BABELTRACE_DEBUG_MODE:
 351 AC_ARG_VAR([BABELTRACE_DEBUG_MODE], [Set to 1 to enable the Babeltrace debug mode (enables internal assertions for Babeltrace maintainers)])
 352 AS_IF([test "x$BABELTRACE_DEBUG_MODE" = x1], [
 353         AC_DEFINE([BT_DEBUG_MODE], 1, [Babeltrace debug mode])
 354 ], [BABELTRACE_DEBUG_MODE=0])
 355
 356
 357 ##                              ##
 358 ## Optionnal features selection ##
 359 ##                              ##
 360
 361 # Python bindings
 362 # Disabled by default
 363 AC_ARG_ENABLE([python-bindings],
 364   [AC_HELP_STRING([--enable-python-bindings], [build the Python bindings])],
 365   [], dnl AC_ARG_ENABLE will fill enable_python_bindings with the user choice
 366   [enable_python_bindings=unspecified]
 367 )
 368
 369 # Python bindings documentation
 370 # Disabled by default
 371 AC_ARG_ENABLE([python-bindings-doc],
 372   [AC_HELP_STRING([--enable-python-bindings-doc], [build the Python bindings documentation])],
 373   [], dnl AC_ARG_ENABLE will fill enable_python_bindings_doc with the user choice
 374   [enable_python_bindings_doc=no]
 375 )
 376
 377 # Python plugins
 378 # Disabled by default
 379 AC_ARG_ENABLE([python-plugins],
 380   [AC_HELP_STRING([--enable-python-plugins], [enable the Python plugins support for the library and converter])]
 381   dnl AC_ARG_ENABLE will fill enable_python_plugins with the user choice
 382 )
 383
 384 # Debug info
 385 # Enabled by default, except on some platforms
 386 AC_ARG_ENABLE([debug-info],
 387   [AC_HELP_STRING([--disable-debug-info], [disable the debug info support (default on macOS, Solaris and Windows)])],
 388   [], dnl AC_ARG_ENABLE will fill enable_debug_info with the user choice
 389   [enable_debug_info="$DEFAULT_ENABLE_DEBUG_INFO"]
 390 )
 391
 392 # API documentation
 393 # Disabled by default
 394 AC_ARG_ENABLE([api-doc],
 395   [AC_HELP_STRING([--enable-api-doc], [build the HTML API documentation])],
 396   [enable_api_doc=$enableval]
 397 )
 398
 399 # Built-in plugins
 400 # Disabled by default
 401 AC_ARG_ENABLE([built-in-plugins],
 402   [AC_HELP_STRING([--enable-built-in-plugins], [Statically-link in-tree plug-ins into the babeltrace2 executable])]
 403   dnl AC_ARG_ENABLE will fill enable_built_in_plugins with the user choice
 404 )
 405
 406 # Built-in python plugin support
 407 # Disabled by default
 408 AC_ARG_ENABLE([built-in-python-plugin-support],
 409   [AC_HELP_STRING([--enable-built-in-python-plugin-support], [Statically-link Python plugin support into the babeltrace library])]
 410   dnl AC_ARG_ENABLE will fill enable_built_in_python_plugin_support with the user choice
 411 )
 412
 413 # Man pages
 414 # Enabled by default
 415 AC_ARG_ENABLE([man-pages],
 416   [AS_HELP_STRING([--disable-man-pages], [Do not build and install man pages (already built in a distributed tarball])],
 417   [], dnl AC_ARG_ENABLE will fill enable_man_pages with the user choice
 418   [enable_man_pages=yes]
 419 )
 420
 421
 422 # Set automake variables for optionnal feature conditionnals in Makefile.am
 423 AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS], [test "x$enable_python_bindings" = xyes])
 424 AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS_DOC], [test "x$enable_python_bindings_doc" = xyes])
 425 AM_CONDITIONAL([ENABLE_PYTHON_PLUGINS], [test "x$enable_python_plugins" = xyes])
 426 AM_CONDITIONAL([ENABLE_DEBUG_INFO], [test "x$enable_debug_info" = xyes])
 427 AM_CONDITIONAL([ENABLE_API_DOC], [test "x$enable_api_doc" = xyes])
 428 AM_CONDITIONAL([ENABLE_BUILT_IN_PLUGINS], [test "x$enable_built_in_plugins" = xyes])
 429 AM_CONDITIONAL([ENABLE_BUILT_IN_PYTHON_PLUGIN_SUPPORT], [test "x$enable_built_in_python_plugin_support" = xyes])
 430 AM_CONDITIONAL([ENABLE_MAN_PAGES], [test "x$enable_man_pages" = xyes])
 431 AM_CONDITIONAL([ENABLE_PYTHON_COMMON_DEPS], [test "x$enable_python_bindings" = xyes || test "x$enable_python_plugins" = xyes])
 432
 433 # Set defines for optionnal features conditionnals in the source code
 434
 435 ## jgalar: still used?
 436 AS_IF([test "x$enable_python_plugins" = xyes],
 437   [AC_DEFINE([PYTHON_PLUGINS], [1], [Python plugin support.])]
 438 )
 439
 440 AS_IF([test "x$enable_debug_info" = xyes],
 441   [AC_DEFINE([ENABLE_DEBUG_INFO], [1], [Define to 1 if you enable the 'debug info' feature])]
 442 )
 443
 444 AS_IF([test "x$enable_built_in_plugins" = xyes],
 445   [AC_DEFINE([BT_BUILT_IN_PLUGINS], [1], [Define to 1 to register plug-in attributes in static executable sections])]
 446 )
 447
 448 AS_IF([test "x$enable_built_in_python_plugin_support" = xyes],
 449   [AC_DEFINE([BT_BUILT_IN_PYTHON_PLUGIN_SUPPORT], [1], [Define to 1 to register plug-in attributes in static executable sections])]
 450 )
 451
 452 AS_IF([test "x$enable_debug_info" = xyes],
 453   [ENABLE_DEBUG_INFO_VAL=1],
 454   [ENABLE_DEBUG_INFO_VAL=0]
 455 )
 456
 457 AC_SUBST([ENABLE_DEBUG_INFO_VAL])
 458
 459 # Check for conflicting Python related features user choices.
 460 AS_IF([test "x$enable_python_plugins" = xyes],
 461   [
 462     AS_IF([test "x$enable_python_bindings" = xunspecified],
 463       [
 464         # --enable-python-plugins was provided but --enable-python-bindings was
 465         # omitted. Turn the Python bindings ON anyway because it's needed to
 466         # use the Python plugins.
 467         enable_python_bindings=yes
 468       ],
 469       [
 470         AS_IF([test "x$enable_python_bindings" = xno],
 471           [
 472             # --enable-python-plugins _and_ --disable-python-bindings were
 473             # used. This is invalid because Python plugins need the Python
 474             # bindings to be useful.
 475             AC_MSG_ERROR(--enable-python-bindings must be used to support Python plugins)
 476           ]
 477         )
 478       ]
 479     )
 480   ]
 481 )
 482
 483 # Check for conflicting optional features user choices
 484
 485 AS_IF([test "x$enable_built_in_plugins" = xyes],
 486   [
 487     # Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
 488     AS_IF([test "x$enable_static" != xyes], [AC_MSG_ERROR(--enable-static must be used to bundle plug-ins in the babeltrace2 executable)])
 489     AS_IF([test "x$enable_shared" = xyes], [AC_MSG_ERROR(--disable-shared must be used to bundle plug-ins in the babeltrace2 executable)])
 490   ]
 491 )
 492
 493 AS_IF([test "x$enable_built_in_python_plugin_support" = xyes],
 494   [
 495     AS_IF([test "x$enable_python_plugins" != xyes], [AC_MSG_ERROR([--enable-python-plugins must be used to bundle Python plugin support in the babeltrace2 executable])])
 496     # Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
 497     AS_IF([test "x$enable_static" != xyes], [AC_MSG_ERROR(--enable-static must be used to bundle Python plugin support in the babeltrace2 executable)])
 498     AS_IF([test "x$enable_shared" = xyes], [AC_MSG_ERROR(--disable-shared must be used to bundle Python plugin support in the babeltrace2 executable)])
 499   ]
 500 )
 501
 502
 503 # Check for optionnal features dependencies
 504
 505 AS_IF([test "x$enable_python_bindings" = xyes],
 506   [AX_PKG_SWIG(2.0.0, [], [AC_MSG_ERROR([SWIG 2.0.0 or newer is required to build the python bindings])])]
 507 )
 508
 509 AM_PATH_PYTHON([3.0], [
 510   AM_PATH_PYTHON_MODULES([PYTHON])
 511
 512   # pythondir is the path where extra modules are to be installed
 513   pythondir=$PYTHON_PREFIX/$PYTHON_MODULES_PATH
 514
 515   # pyexecdir is the path that contains shared objects used by the extra modules
 516   pyexecdir=$PYTHON_EXEC_PREFIX/$PYTHON_MODULES_PATH
 517
 518   AS_IF([test -z "$PYTHON_CONFIG"], [
 519     AC_PATH_PROGS([PYTHON_CONFIG],
 520                   [python$PYTHON_VERSION-config python-config],
 521                   [],
 522                   [`dirname $PYTHON`])
 523   ])
 524
 525   AS_IF([test -n "$PYTHON_CONFIG"], [
 526     AS_IF([test -z "$PYTHON_INCLUDE"], [
 527       AC_MSG_CHECKING([Python include flags])
 528       PYTHON_INCLUDE=`$PYTHON_CONFIG --includes`
 529       AC_MSG_RESULT([$PYTHON_INCLUDE])
 530     ])
 531
 532     AS_IF([test -z "$PYTHON_LDFLAGS"], [
 533       AC_MSG_CHECKING([Python library flags])
 534       # Python 3.8+ requires that we pass --embed to get the -lpython3.x flag.
 535       AS_IF([! PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags --embed`], [
 536         PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags`
 537       ])
 538       AC_MSG_RESULT([$PYTHON_LDFLAGS])
 539     ])
 540   ])
 541 ], [:])
 542
 543 AS_IF([test "$PYTHON" != :], [have_python=yes], [have_python=no])
 544 AS_IF([test -n "$PYTHON_CONFIG"], [have_python_dev=yes], [have_python_dev=no])
 545
 546 AM_CONDITIONAL([HAVE_PYTHON], [test "x$have_python" = xyes])
 547 AM_CONDITIONAL([HAVE_PYTHON_DEV], [test "x$have_python_dev" = xyes])
 548
 549 AS_IF([test "x$enable_python_bindings" = xyes || test "x$enable_python_plugins" = xyes], [
 550   AS_IF([test "x$have_python_dev" = xno], [
 551     AC_MSG_ERROR([Cannot find a suitable python-config. You can override the python-config path with the PYTHON_CONFIG environment variable.])
 552   ])
 553 ])
 554
 555 AS_IF([test "x$enable_python_bindings_doc" = xyes],
 556   [
 557     AM_CHECK_PYTHON_SPHINX([PYTHON])
 558     AS_IF([test "x$PYTHON_SPHINX_EXISTS" = xno], [
 559       AC_MSG_ERROR([The Sphinx package for Python 3 is required to build the Python bindings documentation])
 560     ])
 561
 562     AS_IF([test "x$enable_python_bindings" != xyes], [
 563       AC_MSG_ERROR([The Python bindings are required to build their documentation])
 564     ])
 565   ]
 566 )
 567
 568 AS_IF([test "x$enable_debug_info" = xyes],
 569   [
 570     # Check if libelf and libdw are present
 571     AC_CHECK_LIB([elf], [elf_version], [:], [AC_MSG_ERROR(Missing libelf (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
 572     AC_CHECK_LIB([dw], [dwarf_begin], [:], [AC_MSG_ERROR(Missing libdw (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
 573     BT_LIB_ELFUTILS([0], [154], [:], [AC_MSG_ERROR(elfutils >= 0.154 is required to use the debug info feature. You can disable this feature using --disable-debug-info.)])
 574     ELFUTILS_LIBS="-lelf -ldw"
 575   ]
 576 )
 577 AC_SUBST([ELFUTILS_LIBS])
 578
 579 AS_IF([test "x$enable_api_doc" = "xyes"],
 580   [
 581     DX_DOXYGEN_FEATURE(ON)
 582     DX_DOT_FEATURE(OFF)
 583     DX_HTML_FEATURE(ON)
 584     DX_CHM_FEATURE(OFF)
 585     DX_CHI_FEATURE(OFF)
 586     DX_MAN_FEATURE(OFF)
 587     DX_RTF_FEATURE(OFF)
 588     DX_XML_FEATURE(OFF)
 589     DX_PDF_FEATURE(OFF)
 590     DX_PS_FEATURE(OFF)
 591     DX_INIT_DOXYGEN([Babeltrace 2], [$(builddir)/Doxyfile], [output])
 592     AS_IF([test -z "$DX_DOXYGEN"],
 593           [AC_MSG_ERROR([You need doxygen to enable the API documentation])]
 594     )
 595   ]
 596 )
 597
 598 have_asciidoc_xmlto=no
 599 warn_prebuilt_man_pages=no
 600
 601 AC_PATH_PROG([ASCIIDOC], [asciidoc], [no])
 602 AC_PATH_PROG([XMLTO], [xmlto], [no])
 603
 604 AS_IF([test "x$enable_man_pages" = "xyes"], [
 605   AS_IF([test "x$ASCIIDOC" = "xno" || test "x$XMLTO" = "xno"], [
 606     AS_IF([test "x$in_git_repo" = "xyes"], [
 607       # this is an error because we're in the Git repo, which
 608       # means the man pages are not already generated for us,
 609       # thus asciixmlto are required because we were asked
 610       # to build the man pages
 611       AC_MSG_ERROR([
 612 You need asciidoc and xmlto to build the Babeltrace man pages. Use
 613 --disable-man-pages to disable building the man pages, in which case
 614 they will not be installed.
 615       ])
 616     ], [
 617       # only warn here: since we're in the tarball, the man
 618       # pages should already be generated at this point, thus
 619       # asciidoc/xmlto are not strictly required
 620       warn_prebuilt_man_pages=yes
 621     ])
 622   ], [
 623     have_asciidoc_xmlto=yes
 624   ])
 625 ])
 626
 627 # export AsciiDoc and xmlto existence
 628 AM_CONDITIONAL([HAVE_ASCIIDOC_XMLTO], [test "x$have_asciidoc_xmlto" = "xyes"])
 629
 630 # a wonderful hack that seems necessary because $libdir is
 631 # literally `${exec_prefix}/lib`, and $exec_prefix is set to `NONE`
 632 # by autoconf when it's not specified by the user
 633 AS_IF([test "x$exec_prefix" = xNONE], [
 634   AS_IF([test "x$prefix" = xNONE], [
 635     PREFIX="$ac_default_prefix"
 636   ], [
 637     PREFIX="$prefix"
 638   ])
 639
 640   LIBDIR="$PREFIX/lib"
 641 ], [
 642   LIBDIR="$libdir"
 643 ])
 644
 645 AC_SUBST(LIBDIR)
 646
 647 # CFLAGS from libraries (the glib ones are needed for the following sizeof
 648 # test).
 649 AM_CFLAGS="${PTHREAD_CFLAGS} ${GLIB_CFLAGS}"
 650
 651 # Check that the current size_t matches the size that glib thinks it should
 652 # be. This catches problems on multi-arch where people try to do a 32-bit
 653 # build while pointing at 64-bit glib headers. This is a common error because
 654 # glib.h is not platform specific but it includes glibconfig.h which is and
 655 # is usually installed in a non-standard path.
 656
 657 # Do this before enabling all the warning flags, as the
 658 # AC_LANG_PROGRAM-generated program may generate some warning, which makes this
 659 # test fail unnecessarily.
 660
 661 # Older versions of the pkg-config macros disallows PKG_* in the autoconf
 662 # output. Specifically allow pkg_config_libdir to be able to print the
 663 # error message.
 664 m4_pattern_allow([PKG_CONFIG_LIBDIR])
 665
 666 save_CFLAGS=${CFLAGS}
 667 CFLAGS="${CFLAGS} ${AM_CFLAGS}"
 668 AC_COMPILE_IFELSE([
 669   AC_LANG_PROGRAM([dnl
 670 #include <glib.h>
 671 #include <unistd.h>
 672   ], [dnl
 673 G_STATIC_ASSERT(sizeof(size_t) == GLIB_SIZEOF_SIZE_T);
 674   ])
 675 ],[:],[
 676   AC_MSG_ERROR([dnl
 677 sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T. You probably need to set
 678 PKG_CONFIG_LIBDIR to point to the right pkg-config files for your build
 679 target.
 680   ])
 681 ])
 682 CFLAGS=${save_CFLAGS}
 683
 684 # Detect C and LD warning flags supported by the compiler.
 685 AX_COMPILER_FLAGS(
 686         [WARN_CFLAGS], dnl CFLAGS variable name
 687         [WARN_LDFLAGS], dnl LDFLAGS variable name (unused for now)
 688         [], dnl is-release
 689         [], dnl Extra base CFLAGS
 690         [ dnl Extra "yes" CFLAGS
 691                 dnl Disable these flags, either because we don't want them
 692                 dnl or because we want them but are not ready to enable them
 693                 dnl yet.
 694                 -Wno-sign-compare dnl
 695                 -Wno-inline dnl
 696                 -Wno-declaration-after-statement dnl
 697                 -Wno-switch-enum dnl
 698                 -Wno-switch-default dnl
 699                 -Wno-packed dnl
 700                 -Wno-pointer-arith dnl
 701                 -Wno-format-nonliteral dnl
 702                 -Wno-double-promotion dnl
 703                 -Wno-cast-align dnl
 704                 dnl
 705                 dnl Some versions of SWIG (like 3.0.12) generate code that produces
 706                 dnl -Wcast-function-type warnings.  This warning is present in gcc >= 8.  This
 707                 dnl combo happens on RHEL/Centos 8, for example.  Later versions of SWIG (like
 708                 dnl 4.0.1) have the correct function signatures to not produce this warning.
 709                 dnl It's simpler to just disable the warning globally.
 710                 dnl
 711                 dnl Note that the Debian/Ubuntu SWIG package 3.0.12-2 contains a local patch to
 712                 dnl fix this (python-fix-function-cast-warnings.patch), so you won't be able to
 713                 dnl reproduce the warning using that package.
 714                 dnl
 715                 dnl Ref: https://github.com/swig/swig/issues/1259
 716                 -Wno-cast-function-type dnl
 717         ])
 718
 719 # CFLAGS from AX_COMPILER_FLAGS.
 720 AM_CFLAGS="${AM_CFLAGS} ${WARN_CFLAGS}"
 721
 722 # The test used in AX_COMPILER_FLAGS, generated using AC_LANG_PROGRAM, is
 723 # written in such a way that it triggers a -Wold-style-definition warning.  So
 724 # if the user has -Werror in their CFLAGS, that warning flag will end up
 725 # disabled, because the test program will not build.
 726 #
 727 # Enable it here unconditionally.  It is supported by GCC >= 4.8 and by Clang
 728 # (it is accepted for compatibility although it has no effect), and there is
 729 # not reason to not want it.
 730
 731 AM_CFLAGS="${AM_CFLAGS} -Wold-style-definition"
 732
 733 # We want this one to always be an error.
 734 AM_CFLAGS="${AM_CFLAGS} -Werror=implicit-function-declaration"
 735
 736 # Done for AM_CFLAGS.
 737 AC_SUBST(AM_CFLAGS)
 738
 739 # Set global CPPFLAGS in AM_CPPFLAGS
 740 AM_CPPFLAGS="-I\$(top_srcdir)/include -I\$(top_builddir)/src -I\$(top_srcdir)/src -include common/config.h"
 741 AC_SUBST(AM_CPPFLAGS)
 742
 743 # Add glib to global link libs
 744 LIBS="$LIBS $GLIB_LIBS"
 745
 746 # Abuse autoconf's AC_ARG_PROGRAM output variable 'program_transform_name'
 747 # to rename babeltrace2.bin to babeltrace2 at install time.
 748 program_transform_name="s&babeltrace2\.bin&babeltrace2&;$program_transform_name"
 749 AC_SUBST(program_transform_name)
 750
 751 AC_CONFIG_FILES([
 752         doc/api/Makefile
 753         doc/api/libbabeltrace2/Doxyfile
 754         doc/api/libbabeltrace2/Makefile
 755         doc/bindings/Makefile
 756         doc/bindings/python/Makefile
 757         doc/contributing-images/Makefile
 758         doc/Makefile
 759         doc/man/asciidoc-attrs.conf
 760         doc/man/Makefile
 761         include/Makefile
 762         Makefile
 763         src/argpar/Makefile
 764         src/autodisc/Makefile
 765         src/babeltrace2-ctf-writer.pc
 766         src/babeltrace2.pc
 767         src/bindings/Makefile
 768         src/bindings/python/bt2/bt2/version.py
 769         src/bindings/python/bt2/Makefile
 770         src/bindings/python/bt2/setup.py
 771         src/bindings/python/Makefile
 772         src/cli/Makefile
 773         src/common/Makefile
 774         src/compat/Makefile
 775         src/ctfser/Makefile
 776         src/ctf-writer/Makefile
 777         src/fd-cache/Makefile
 778         src/lib/graph/Makefile
 779         src/lib/graph/message/Makefile
 780         src/lib/Makefile
 781         src/lib/plugin/Makefile
 782         src/lib/prio-heap/Makefile
 783         src/lib/trace-ir/Makefile
 784         src/logging/Makefile
 785         src/Makefile
 786         src/plugins/common/Makefile
 787         src/plugins/common/muxing/Makefile
 788         src/plugins/common/param-validation/Makefile
 789         src/plugins/ctf/common/bfcr/Makefile
 790         src/plugins/ctf/common/Makefile
 791         src/plugins/ctf/common/metadata/Makefile
 792         src/plugins/ctf/common/msg-iter/Makefile
 793         src/plugins/ctf/fs-sink/Makefile
 794         src/plugins/ctf/fs-src/Makefile
 795         src/plugins/ctf/lttng-live/Makefile
 796         src/plugins/ctf/Makefile
 797         src/plugins/lttng-utils/debug-info/Makefile
 798         src/plugins/lttng-utils/Makefile
 799         src/plugins/Makefile
 800         src/plugins/text/dmesg/Makefile
 801         src/plugins/text/Makefile
 802         src/plugins/text/pretty/Makefile
 803         src/plugins/text/details/Makefile
 804         src/plugins/utils/counter/Makefile
 805         src/plugins/utils/dummy/Makefile
 806         src/plugins/utils/Makefile
 807         src/plugins/utils/muxer/Makefile
 808         src/plugins/utils/trimmer/Makefile
 809         src/py-common/Makefile
 810         src/python-plugin-provider/Makefile
 811         src/param-parse/Makefile
 812         src/string-format/Makefile
 813         tests/bitfield/Makefile
 814         tests/ctf-writer/Makefile
 815         tests/lib/Makefile
 816         tests/lib/test-plugin-plugins/Makefile
 817         tests/Makefile
 818         tests/param-validation/Makefile
 819         tests/plugins/Makefile
 820         tests/plugins/src.ctf.fs/Makefile
 821         tests/plugins/src.ctf.fs/succeed/Makefile
 822         tests/plugins/sink.ctf.fs/Makefile
 823         tests/plugins/sink.ctf.fs/succeed/Makefile
 824         tests/plugins/flt.lttng-utils.debug-info/Makefile
 825         tests/plugins/flt.utils.muxer/Makefile
 826         tests/plugins/flt.utils.muxer/succeed/Makefile
 827         tests/plugins/flt.utils.trimmer/Makefile
 828         tests/utils/Makefile
 829         tests/utils/tap/Makefile
 830 ])
 831
 832 AC_OUTPUT
 833
 834 #
 835 # Mini-report on what will be built.
 836 #
 837
 838 PPRINT_INIT
 839 PPRINT_SET_INDENT(1)
 840 PPRINT_SET_TS(38)
 841
 842 AS_ECHO
 843
 844 AS_IF([test -n "bt_version_name"], [
 845         AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION \"bt_version_name\"$PPRINT_COLOR_RST")
 846 ], [
 847         AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION")
 848 ])
 849
 850 AS_ECHO
 851
 852 AS_IF([test -n "$bt_version_description"], [
 853         AS_IF([test -n "$report_fold"], [
 854                 AS_ECHO("`AS_ECHO("$bt_version_description") | $report_fold -s`")
 855         ], [
 856                 AS_ECHO("$bt_version_description")
 857         ])
 858
 859         AS_ECHO
 860 ])
 861
 862 PPRINT_SUBTITLE([System])
 863
 864 # Target architecture we're building for.
 865 target_arch=$host_cpu
 866 [
 867 for f in $CFLAGS; do
 868         if test $f = "-m32"; then
 869                 target_arch="32-bit"
 870         elif test $f = "-m64"; then
 871                 target_arch="64-bit"
 872         fi
 873 done
 874 ]
 875
 876 PPRINT_PROP_STRING([Target architecture], $target_arch)
 877
 878 AS_ECHO
 879 PPRINT_SUBTITLE([Python 3 language support])
 880 test "x$have_python" = "xyes" && value=1 || value=0
 881 PPRINT_PROP_BOOL([Have Python interpreter], $value)
 882 test "x$have_python_dev" = "xyes" && value=1 || value=0
 883 PPRINT_PROP_BOOL([Have Python development libraries], $value)
 884 test "x$enable_python_bindings" = "xyes" && value=1 || value=0
 885 PPRINT_PROP_BOOL([Python bindings], $value)
 886 test "x$enable_python_plugins" = "xyes" && value=1 || value=0
 887 PPRINT_PROP_BOOL([Python plugin support], $value)
 888 AS_IF([test "x$have_python" = "xyes"], [
 889   PPRINT_PROP_STRING([Python interpreter path], [$PYTHON])
 890 ])
 891 AS_IF([test "x$have_python_dev" = "xyes"], [
 892   PPRINT_PROP_STRING([python-config path], [$PYTHON_CONFIG])
 893   PPRINT_PROP_STRING([Python include paths], [$PYTHON_INCLUDE])
 894   PPRINT_PROP_STRING([Python linker flags], [$PYTHON_LDFLAGS])
 895 ])
 896 AS_IF([test "x$enable_python_bindings" = "xyes"], [
 897   PPRINT_PROP_STRING([SWIG executable], [$SWIG])
 898   PPRINT_PROP_STRING([SWIG library], [$SWIG_LIB])
 899 ])
 900
 901 AS_ECHO
 902 PPRINT_SUBTITLE([Plugins])
 903 PPRINT_PROP_BOOL(['ctf' plugin], 1)
 904 test "x$enable_debug_info" = "xyes" && value=1 || value=0
 905 PPRINT_PROP_BOOL(['lttng-utils' plugin], $value)
 906 PPRINT_PROP_BOOL(['text' plugin], 1)
 907 PPRINT_PROP_BOOL(['utils' plugin], 1)
 908
 909 AS_ECHO
 910 PPRINT_SUBTITLE([Built-in features])
 911 test "x$enable_built_in_plugins" = "xyes" && value=1 || value=0
 912 PPRINT_PROP_BOOL([Built-in plugins], $value)
 913 test "x$enable_built_in_python_plugin_support" = "xyes" && value=1 || value=0
 914 PPRINT_PROP_BOOL([Built-in Python plugin support], $value)
 915
 916 AS_ECHO
 917 PPRINT_SUBTITLE([Documentation])
 918
 919 # man pages build enabled/disabled
 920 m4_pushdef([build_man_pages_msg], [Build and install man pages])
 921
 922 AS_IF([test "x$enable_man_pages" != "xno"], [
 923   AS_IF([test "x$in_git_repo" = "xyes"], [
 924     PPRINT_PROP_BOOL([build_man_pages_msg], 1)
 925   ], [
 926     AS_IF([test "x$have_asciidoc_xmlto" = "xyes"], [
 927       PPRINT_PROP_BOOL([build_man_pages_msg], 1)
 928     ], [
 929       PPRINT_PROP_STRING([build_man_pages_msg],
 930         [${PPRINT_COLOR_BLDGRN}yes (already built)],
 931         $PPRINT_COLOR_SUBTITLE)
 932     ])
 933   ])
 934 ], [
 935   PPRINT_PROP_BOOL([build_man_pages_msg], 0)
 936 ])
 937
 938 m4_popdef([build_man_pages_msg])
 939
 940 test "x$enable_api_doc" = "xyes" && value=1 || value=0
 941 PPRINT_PROP_BOOL([HTML API documentation], $value)
 942 test "x$enable_python_bindings_doc" = "xyes" && value=1 || value=0
 943 PPRINT_PROP_BOOL([Python bindings documentation], $value)
 944
 945 AS_ECHO
 946 PPRINT_SUBTITLE([Logging])
 947 PPRINT_PROP_STRING([Minimal log level], $BABELTRACE_MINIMAL_LOG_LEVEL)
 948
 949 AS_ECHO
 950 PPRINT_SUBTITLE([Special build modes])
 951 PPRINT_PROP_BOOL([Debug mode], $BABELTRACE_DEBUG_MODE)
 952 PPRINT_PROP_BOOL([Developer mode], $BABELTRACE_DEV_MODE)
 953
 954 report_bindir="`eval eval echo $bindir`"
 955 report_libdir="`eval eval echo $libdir`"
 956 report_sysconfdif="`eval eval echo $sysconfdir`"
 957 report_pluginsdir="`eval eval eval echo $BABELTRACE_PLUGINS_DIR`"
 958 report_pluginprovidersdir="`eval eval eval echo $BABELTRACE_PLUGIN_PROVIDERS_DIR`"
 959
 960 # Print the bindir and libdir this `make install' will install into.
 961 AS_ECHO
 962 PPRINT_SUBTITLE([Install directories])
 963 PPRINT_PROP_STRING([Binaries], [$report_bindir])
 964 PPRINT_PROP_STRING([Libraries], [$report_libdir])
 965 PPRINT_PROP_STRING([Plugins], [$report_pluginsdir])
 966 PPRINT_PROP_STRING([Plugin providers], [$report_pluginprovidersdir])
 967 PPRINT_PROP_STRING([Configuration], [$report_sysconfdif])