1 dnl SPDX-License-Identifier: MIT
3 dnl Copyright (C) 2017 EfficiOS, Inc.
5 dnl Process this file with autoconf to produce a configure script.
7 # Project version information
8 m4_define([bt_version_major], [2])
9 m4_define([bt_version_minor], [1])
10 m4_define([bt_version_patch], [0])
11 m4_define([bt_version_dev_stage], [-rc1])
12 m4_define([bt_version], bt_version_major[.]bt_version_minor[.]bt_version_patch[]bt_version_dev_stage)
13 m4_define([bt_version_name], [[Codename TBD]])
14 m4_define([bt_version_description], [[Description TBD]])
16 # Library version information of "libbabeltrace2"
17 # Following the numbering scheme proposed by libtool for the library version
18 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
19 m4_define([bt_lib_version_current], [0])
20 m4_define([bt_lib_version_revision], [0])
21 m4_define([bt_lib_version_age], [0])
22 m4_define([bt_lib_version], bt_lib_version_current[:]bt_lib_version_revision[:]bt_lib_version_age)
26 ## Autoconf base setup ##
30 AC_INIT([babeltrace2],[bt_version],[jeremie dot galarneau at efficios dot com],[],[https://efficios.com/babeltrace/])
32 AC_SUBST([BABELTRACE_LIBRARY_VERSION], bt_lib_version)
34 AC_CONFIG_HEADERS([src/common/config.h])
35 AC_CONFIG_AUX_DIR([config])
36 AC_CONFIG_MACRO_DIR([m4])
38 AC_DEFINE([BT_VERSION_MAJOR], bt_version_major, [Babeltrace major version])
39 AC_DEFINE([BT_VERSION_MINOR], bt_version_minor, [Babeltrace minor version])
40 AC_DEFINE([BT_VERSION_PATCH], bt_version_patch, [Babeltrace patch version])
41 AC_DEFINE([BT_VERSION_DEV_STAGE], ["]bt_version_dev_stage["], [Babeltrace version development stage (can be empty)])
42 AC_DEFINE([BT_VERSION_NAME], ["]bt_version_name["], [Babeltrace version name])
43 AC_DEFINE([BT_VERSION_DESCRIPTION], ["]AS_ESCAPE(bt_version_description)["], [Babeltrace version description])
50 ## Automake base setup ##
53 AM_INIT_AUTOMAKE([1.13 foreign dist-bzip2 no-dist-gzip tar-ustar nostdinc subdir-objects -Wall -Wno-portability -Werror])
54 AM_MAINTAINER_MODE([enable])
56 # Enable silent rules by default
57 AM_SILENT_RULES([yes])
61 ## OS specific defaults ##
69 AE_FEATURE_DISABLE([debug-info])
73 AE_FEATURE_DISABLE([debug-info])
77 AE_FEATURE_DISABLE([debug-info])
78 LT_NO_UNDEFINED="-no-undefined"
83 AE_FEATURE_DISABLE([debug-info])
84 LT_NO_UNDEFINED="-no-undefined"
88 AM_CONDITIONAL([BABELTRACE_BUILD_WITH_MINGW], [test "x$MINGW32" = "xyes"])
89 AC_SUBST(LT_NO_UNDEFINED)
93 ## C compiler checks ##
96 # Choose the C compiler
98 # AC_PROG_CC_STDC was merged in AC_PROG_CC in autoconf 2.70
99 m4_version_prereq([2.70], [], [AC_PROG_CC_STDC])
101 # Make sure the C compiler supports C99
102 AS_IF([test "$ac_cv_prog_cc_c99" = "no"], [AC_MSG_ERROR([The compiler does not support C99])])
104 # Enable available system extensions and LFS support
105 AC_USE_SYSTEM_EXTENSIONS
108 # Make sure the C compiler supports __attributes__
110 AS_IF([test "x$ax_cv___attribute__" != "xyes"],
111 [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
113 # Make sur we have pthread support
114 AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])])
116 # Checks for typedefs, structures, and compiler characteristics.
131 AC_CHECK_TYPES([ptrdiff_t])
135 ## C++ compiler checks ##
138 # Require a C++11 compiler without GNU extensions (-std=c++11)
139 AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory])
166 # Check if the linker supports no-as-needed
167 AX_APPEND_LINK_FLAGS([-Wl,--no-as-needed], [LD_NO_AS_NEEDED])
168 AC_SUBST([LD_NO_AS_NEEDED])
170 # Check if the linker supports whole-archive
171 AX_CHECK_LINK_FLAG([-Wl,--whole-archive,--no-whole-archive],
173 AC_SUBST([LD_WHOLE_ARCHIVE], [-Wl,--whole-archive,])
174 AC_SUBST([LD_NO_WHOLE_ARCHIVE], [,--no-whole-archive])
176 # Fallback to force_load for the macOS linker
177 AX_CHECK_LINK_FLAG([-Wl,-force_load],
179 AC_SUBST([LD_WHOLE_ARCHIVE], [-Wl,-force_load,])
180 AC_SUBST([LD_NO_WHOLE_ARCHIVE], [])
182 AC_MSG_WARN([Can't find a linker option to force the inclusion of the static plugin archive objects.])
188 # Check if the linker supports the "notext" keyword
189 AX_CHECK_LINK_FLAG([-Wl,-z,notext],[
190 AC_SUBST([LD_NOTEXT], [-Wl,-z,notext])
195 ## Programs checks ##
203 AC_CHECK_PROGS([FOLD], [fold])
204 AC_CHECK_PROGS([ASCIIDOC], [asciidoc])
205 AC_CHECK_PROGS([XMLTO], [xmlto])
209 AX_PROG_BISON_VERSION([2.5], [have_bison=yes])
211 AS_IF([test "x$have_bison" != "xyes"], [
214 Bison >= 2.5 is required when building from the Git repository. You can
215 set the YACC variable to override automatic detection.
219 Missing Bison >= 2.5. Note that the parser files are already built in
220 this distribution tarball, so Bison is only needed if you intend to
221 modify their sources. You can set the YACC variable to override automatic
226 AM_CONDITIONAL([HAVE_BISON], [test "x$have_bison" = "xyes"])
229 # Prior to autoconf 2.70, AC_PROG_FLEX did not take an argument. This is not a
230 # problem since the argument is silently ignored by older versions.
231 AC_PROG_LEX([noyywrap])
232 AX_PROG_FLEX_VERSION([2.5.35], [have_flex=yes])
234 AS_IF([test "x$have_flex" != "xyes"], [
237 Flex >= 2.5.35 is required when building from the Git repository. You can
238 set the LEX variable to override automatic detection.
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
249 AM_CONDITIONAL([HAVE_FLEX], [test "x$have_flex" = "xyes"])
251 # Always check for python, we will fail later if some features require it and
253 AM_PATH_PYTHON([3.4], [
254 AE_PATH_PYTHON_MODULES([PYTHON])
256 # pythondir is the path where extra modules are to be installed
257 pythondir=$PYTHON_PREFIX/$PYTHON_MODULES_PATH
259 # pyexecdir is the path that contains shared objects used by the extra modules
260 pyexecdir=$PYTHON_EXEC_PREFIX/$PYTHON_MODULES_PATH
262 # If no PYTHON_CONFIG was specified by the user, try to find it, starting
263 # with the one specific to the configured python version.
264 AS_IF([test "x$PYTHON_CONFIG" = "x"], [
265 AC_CHECK_PROGS([PYTHON_CONFIG], [python$PYTHON_VERSION-config python-config])
268 # If PYTHON_CONFIG is set use it to get the includes and ld flags, unless
269 # they were specified by the user.
270 AS_IF([test "x$PYTHON_CONFIG" != "x" ], [
271 AS_IF([test "x$PYTHON_INCLUDE" = "x"], [
272 AC_MSG_CHECKING([Python include flags])
273 PYTHON_INCLUDE=`$PYTHON_CONFIG --includes`
274 AC_MSG_RESULT([$PYTHON_INCLUDE])
277 AS_IF([test "x$PYTHON_LDFLAGS" = "x"], [
278 AC_MSG_CHECKING([Python library flags])
279 # Python 3.8+ requires that we pass --embed to get the -lpython3.x flag.
280 AS_IF([! PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags --embed`], [
281 PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags`
283 AC_MSG_RESULT([$PYTHON_LDFLAGS])
288 # Initialize and configure libtool
296 # Check what libraries are required on this platform to link sockets programs.
299 # Check for glib >= 2.28 with gmodule support
300 AM_PATH_GLIB_2_0([2.28.0], [],
301 AC_MSG_ERROR([glib >= 2.28 is required - download it from ftp://ftp.gtk.org/pub/gtk]),
305 # Checks for library functions.
339 # AC_FUNC_MALLOC causes problems when cross-compiling.
344 AC_CHECK_LIB([c], [fmemopen],
345 [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_FMEMOPEN], 1, [Has fmemopen support.])]
348 # Check for open_memstream
349 AC_CHECK_LIB([c], [open_memstream],
350 [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_OPEN_MEMSTREAM], 1, [Has open_memstream support.])]
353 # Check for posix_fallocate
354 AC_CHECK_LIB([c], [posix_fallocate],
355 [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_POSIX_FALLOCATE], 1, [Has posix_fallocate support.])]
363 AC_ARG_VAR([PYTHON_INCLUDE], [Include flags for Python, bypassing python-config])
364 AC_ARG_VAR([PYTHON_LDFLAGS], [Linker flags for Python, bypassing python-config])
365 AC_ARG_VAR([PYTHON_CONFIG], [Path to python-config])
367 # BABELTRACE_PLUGINS_DIR: Plugins directory
368 AC_ARG_VAR([BABELTRACE_PLUGINS_DIR], [built-in plugins install directory [LIBDIR/babeltrace2/plugins]])
369 AS_IF([test "x$BABELTRACE_PLUGINS_DIR" = x], [BABELTRACE_PLUGINS_DIR='${libdir}/babeltrace2/plugins'])
371 # BABELTRACE_PLUGIN_PROVIDERS_DIR: Plugin providers directory
372 AC_ARG_VAR([BABELTRACE_PLUGIN_PROVIDERS_DIR], [built-in plugin providers install directory [LIBDIR/babeltrace2/plugin-providers]])
373 AS_IF([test "x$BABELTRACE_PLUGIN_PROVIDERS_DIR" = x], [BABELTRACE_PLUGIN_PROVIDERS_DIR='${libdir}/babeltrace2/plugin-providers'])
375 # BABELTRACE_MINIMAL_LOG_LEVEL:
376 AC_ARG_VAR([BABELTRACE_MINIMAL_LOG_LEVEL], [Minimal log level for Babeltrace program, library, and plugins (TRACE, DEBUG (default), or INFO)])
377 AS_IF([test "x$BABELTRACE_MINIMAL_LOG_LEVEL" = x], [BABELTRACE_MINIMAL_LOG_LEVEL="DEBUG"])
378 AS_IF([test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "TRACE" && \
379 test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "DEBUG" && \
380 test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "INFO"],
381 [AC_MSG_ERROR([Invalid BABELTRACE_MINIMAL_LOG_LEVEL value ($BABELTRACE_MINIMAL_LOG_LEVEL): use TRACE, DEBUG, or INFO.])]
383 AC_DEFINE_UNQUOTED([BT_MINIMAL_LOG_LEVEL], [BT_LOG_$BABELTRACE_MINIMAL_LOG_LEVEL], [Minimal log level])
385 # BABELTRACE_DEV_MODE:
386 AC_ARG_VAR([BABELTRACE_DEV_MODE], [Set to 1 to enable the Babeltrace developer mode (enables run-time checks for plugin developers)])
387 AS_IF([test "x$BABELTRACE_DEV_MODE" = x1], [
388 AC_DEFINE([BT_DEV_MODE], 1, [Babeltrace developer mode])
389 ], [BABELTRACE_DEV_MODE=0])
390 AM_CONDITIONAL([DEV_MODE], [test "x$BABELTRACE_DEV_MODE" = x1])
392 # BABELTRACE_DEBUG_MODE:
393 AC_ARG_VAR([BABELTRACE_DEBUG_MODE], [Set to 1 to enable the Babeltrace debug mode (enables internal assertions for Babeltrace maintainers)])
394 AS_IF([test "x$BABELTRACE_DEBUG_MODE" = x1], [
395 AC_DEFINE([BT_DEBUG_MODE], 1, [Babeltrace debug mode])
396 ], [BABELTRACE_DEBUG_MODE=0])
400 ## Optionnal features selection ##
404 # Disabled by default
405 AE_FEATURE_DEFAULT_DISABLE
406 AE_FEATURE([python-bindings],[build the Python bindings])
408 # Python bindings documentation
409 # Disabled by default
410 AE_FEATURE_DEFAULT_DISABLE
411 AE_FEATURE([python-bindings-doc],[build the Python bindings documentation])
414 # Disabled by default
415 AE_FEATURE_DEFAULT_DISABLE
416 AE_FEATURE([python-plugins],[enable the Python plugins support for the library and converter])
419 # Enabled by default, except on some platforms
420 AE_FEATURE_DEFAULT_ENABLE
421 AE_FEATURE([debug-info],[disable the debug info support (default on macOS, Solaris and Windows)])
424 # Disabled by default
425 AE_FEATURE_DEFAULT_DISABLE
426 AE_FEATURE([api-doc],[build the HTML API documentation])
429 # Disabled by default
430 AE_FEATURE_DEFAULT_DISABLE
431 AE_FEATURE([built-in-plugins],[Statically-link in-tree plug-ins into the babeltrace2 executable])
433 # Built-in python plugin support
434 # Disabled by default
435 AE_FEATURE_DEFAULT_DISABLE
436 AE_FEATURE([built-in-python-plugin-support],[Statically-link Python plugin support into the babeltrace library])
440 AE_FEATURE_DEFAULT_ENABLE
441 AE_FEATURE([man-pages],[Do not build and install man pages (already built in a distributed tarball])
443 # When given, add -Werror to WARN_CFLAGS and WARN_CXXFLAGS.
444 # Disabled by default
445 AE_FEATURE_DEFAULT_DISABLE
446 AE_FEATURE([Werror],[Treat compiler warnings as errors.])
448 # When given, build with AddressSanitizer.
449 AE_FEATURE_DEFAULT_DISABLE
450 AE_FEATURE([asan],[Build with AddressSanitizer.])
451 AE_FEATURE([ubsan],[Build with UndefinedBehaviorSanitizer.])
454 ## Check for conflicting features selection ##
457 # Check for conflicting Python related features user choices.
458 AE_IF_FEATURE_ENABLED([python-plugins], [
459 AE_IF_FEATURE_UNDEF([python-bindings], [
460 # --enable-python-plugins was provided but --enable-python-bindings was
461 # omitted. Turn the Python bindings ON anyway because it's needed to
462 # use the Python plugins.
463 AE_FEATURE_ENABLE([python-bindings])
465 AE_IF_FEATURE_DISABLED([python-bindings], [
466 # --enable-python-plugins _and_ --disable-python-bindings were
467 # used. This is invalid because Python plugins need the Python
468 # bindings to be useful.
469 AC_MSG_ERROR(--enable-python-bindings must be used to support Python plugins)
474 # Check for conflicting optional features user choices
475 AE_IF_FEATURE_ENABLED([built-in-plugins], [
476 # Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
477 AE_IF_FEATURE_NOT_ENABLED([static], [AC_MSG_ERROR(--enable-static must be used to bundle plug-ins in the babeltrace2 executable)])
478 AE_IF_FEATURE_ENABLED([shared], [AC_MSG_ERROR(--disable-shared must be used to bundle plug-ins in the babeltrace2 executable)])
481 AE_IF_FEATURE_ENABLED([built-in-python-plugin-support], [
482 AE_IF_FEATURE_NOT_ENABLED([python-plugins], [AC_MSG_ERROR([--enable-python-plugins must be used to bundle Python plugin support in the babeltrace2 executable])])
483 # Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
484 AE_IF_FEATURE_NOT_ENABLED([static], [AC_MSG_ERROR(--enable-static must be used to bundle Python plugin support in the babeltrace2 executable)])
485 AE_IF_FEATURE_ENABLED([shared], [AC_MSG_ERROR(--disable-shared must be used to bundle Python plugin support in the babeltrace2 executable)])
490 ## Set automake variables for optional feature conditionnals in Makefile.am ##
493 AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS], AE_IS_FEATURE_ENABLED([python-bindings]))
494 AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS_DOC], AE_IS_FEATURE_ENABLED([python-bindings-doc]))
495 AM_CONDITIONAL([ENABLE_PYTHON_PLUGINS], AE_IS_FEATURE_ENABLED([python-plugins]))
496 AM_CONDITIONAL([ENABLE_DEBUG_INFO], AE_IS_FEATURE_ENABLED([debug-info]))
497 AM_CONDITIONAL([ENABLE_API_DOC], AE_IS_FEATURE_ENABLED([api-doc]))
498 AM_CONDITIONAL([ENABLE_BUILT_IN_PLUGINS], AE_IS_FEATURE_ENABLED([built-in-plugins]))
499 AM_CONDITIONAL([ENABLE_BUILT_IN_PYTHON_PLUGIN_SUPPORT], AE_IS_FEATURE_ENABLED([built-in-python-plugin-support]))
500 AM_CONDITIONAL([ENABLE_MAN_PAGES], AE_IS_FEATURE_ENABLED([man-pages]))
501 AM_CONDITIONAL([ENABLE_PYTHON_COMMON_DEPS], AE_IS_FEATURE_ENABLED([python-bindings]) || AE_IS_FEATURE_ENABLED([python-plugins]))
502 AM_CONDITIONAL([ENABLE_ASAN], AE_IS_FEATURE_ENABLED([asan]))
506 ## Set defines for optional features conditionnals in the source code ##
509 AE_IF_FEATURE_ENABLED([built-in-plugins],
510 [AC_DEFINE([BT_BUILT_IN_PLUGINS], [1], [Define to 1 to register plug-in attributes in static executable sections])]
513 AE_IF_FEATURE_ENABLED([built-in-python-plugin-support],
514 [AC_DEFINE([BT_BUILT_IN_PYTHON_PLUGIN_SUPPORT], [1], [Define to 1 to register plug-in attributes in static executable sections])]
517 AE_IF_FEATURE_ENABLED([debug-info], [ENABLE_DEBUG_INFO_VAL=1], [ENABLE_DEBUG_INFO_VAL=0])
518 AC_SUBST([ENABLE_DEBUG_INFO_VAL])
520 AE_IF_FEATURE_ENABLED([asan], [ENABLE_ASAN=1], [ENABLE_ASAN=0])
521 AC_SUBST([ENABLE_ASAN])
524 ## Check for optional features dependencies ##
527 # The Python bindings require SWIG
528 AE_IF_FEATURE_ENABLED([python-bindings],
529 [AX_PKG_SWIG(2.0.0, [], [AC_MSG_ERROR([SWIG 2.0.0 or newer is required to build the python bindings])])]
532 AS_IF([test "$PYTHON" != :], [have_python=yes], [have_python=no])
533 AS_IF([test -n "$PYTHON_CONFIG"], [have_python_dev=yes], [have_python_dev=no])
535 AM_CONDITIONAL([HAVE_PYTHON], [test "x$have_python" = xyes])
536 AM_CONDITIONAL([HAVE_PYTHON_DEV], [test "x$have_python_dev" = xyes])
538 AS_IF([test "x$have_python" = xyes], [
539 AX_COMPARE_VERSION(["$PYTHON_VERSION"], [ge], ["3.12"], [
540 have_python_312_or_greater=yes
544 AM_CONDITIONAL([HAVE_PYTHON_312_OR_GREATER], [test "x$have_python_312_or_greater" = xyes])
546 AS_IF([AE_IS_FEATURE_ENABLED([python-bindings]) || AE_IS_FEATURE_ENABLED([python-plugins])], [
547 AS_IF([test "x$have_python_dev" = xno], [
548 AC_MSG_ERROR([Cannot find a suitable python-config. You can override the python-config path with the PYTHON_CONFIG environment variable.])
551 AX_COMPARE_VERSION(["$PYTHON_VERSION"], [ge], ["3.12"], [
552 AC_MSG_CHECKING([for python setuptools])
553 AS_IF(["$PYTHON" -c "import setuptools" 2>/dev/null], [
557 AC_MSG_ERROR([Python >= 3.12 removed 'distutils', the 'setuptools' module needs to be installed for the selected interpreter.])
562 AE_IF_FEATURE_ENABLED([python-bindings-doc],
564 AE_CHECK_PYTHON_SPHINX([PYTHON])
565 AS_IF([test "x$PYTHON_SPHINX_EXISTS" = xno], [
566 AC_MSG_ERROR([The Sphinx package for Python 3 is required to build the Python bindings documentation])
569 AE_IF_FEATURE_NOT_ENABLED([python-bindings], [
570 AC_MSG_ERROR([The Python bindings are required to build their documentation])
575 AE_IF_FEATURE_ENABLED([debug-info], [
576 # Check if libelf and libdw are present
577 PKG_CHECK_MODULES([ELFUTILS], [libelf >= 0.154 libdw >= 0.154],
579 dnl PKG_CHECK_MODULES defines ELFUTILS_LIBS
582 AC_MSG_WARN([pkg-config was unable to find a valid .pc for libelf/libdw. Set PKG_CONFIG_PATH to specify the pkg-config configuration file location.])
584 # Turns out SLES12 doesn't bother shipping .pc file for libelf
585 AC_MSG_WARN([Finding libelf without pkg-config.])
586 AC_CHECK_LIB([elf], [elf_version], [:], [AC_MSG_ERROR(Missing libelf (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
587 AC_CHECK_LIB([dw], [dwarf_begin], [:], [AC_MSG_ERROR(Missing libdw (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
588 AE_LIB_ELFUTILS([0], [154], [], [AC_MSG_ERROR(elfutils >= 0.154 is required to use the debug info feature. You can disable this feature using --disable-debug-info.)])
589 ELFUTILS_LIBS="-lelf -ldw"
592 AC_SUBST([ELFUTILS_LIBS])
594 AE_IF_FEATURE_ENABLED([api-doc],
596 DX_DOXYGEN_FEATURE(ON)
606 DX_INIT_DOXYGEN([Babeltrace 2], [$(builddir)/Doxyfile], [output])
607 AS_IF([test -z "$DX_DOXYGEN"],
608 [AC_MSG_ERROR([You need doxygen to enable the API documentation])]
613 have_asciidoc_xmlto=no
614 warn_prebuilt_man_pages=no
616 AE_IF_FEATURE_ENABLED([man-pages], [
617 AS_IF([test "x$ASCIIDOC" = "x" || test "x$XMLTO" = "x"], [
619 # this is an error because we're in the Git repo, which
620 # means the man pages are not already generated for us,
621 # thus asciixmlto are required because we were asked
622 # to build the man pages
624 You need asciidoc and xmlto to build the Babeltrace man pages. Use
625 --disable-man-pages to disable building the man pages, in which case
626 they will not be installed.
629 # only warn here: since we're in the tarball, the man
630 # pages should already be generated at this point, thus
631 # asciidoc/xmlto are not strictly required
632 warn_prebuilt_man_pages=yes
635 have_asciidoc_xmlto=yes
639 # export AsciiDoc and xmlto existence
640 AM_CONDITIONAL([HAVE_ASCIIDOC_XMLTO], [test "x$have_asciidoc_xmlto" = "xyes"])
642 # a wonderful hack that seems necessary because $libdir is
643 # literally `${exec_prefix}/lib`, and $exec_prefix is set to `NONE`
644 # by autoconf when it's not specified by the user
645 AS_IF([test "x$exec_prefix" = xNONE], [
646 AS_IF([test "x$prefix" = xNONE], [
647 PREFIX="$ac_default_prefix"
659 # If --enable-asan is used...
660 AE_IF_FEATURE_ENABLED([asan], [
661 # ... add -fsanitize=address to the *FLAGS variables.
662 ASAN_CFLAGS="-fsanitize=address"
663 ASAN_CXXFLAGS="-fsanitize=address"
664 ASAN_LDFLAGS="-fsanitize=address"
667 # If --enable-ubsan is used...
668 AE_IF_FEATURE_ENABLED([ubsan], [
669 # ... add -fsanitize=undefined to the *FLAGS variables.
670 UBSAN_CFLAGS="-fsanitize=undefined"
671 UBSAN_CXXFLAGS="-fsanitize=undefined"
672 UBSAN_LDFLAGS="-fsanitize=undefined"
675 # CFLAGS from libraries (the glib ones are needed for the following sizeof
677 AM_CFLAGS="-fvisibility=hidden ${PTHREAD_CFLAGS} ${GLIB_CFLAGS} ${ASAN_CFLAGS} ${UBSAN_CFLAGS}"
678 AM_CXXFLAGS="-fvisibility=hidden -fvisibility-inlines-hidden ${PTHREAD_CFLAGS} ${GLIB_CFLAGS} ${ASAN_CXXFLAGS} ${UBSAN_CFLAGS}"
679 AM_LDFLAGS="${ASAN_LDFLAGS} ${UBSAN_CFLAGS}"
681 # Check that the current size_t matches the size that glib thinks it should
682 # be. This catches problems on multi-arch where people try to do a 32-bit
683 # build while pointing at 64-bit glib headers. This is a common error because
684 # glib.h is not platform specific but it includes glibconfig.h which is and
685 # is usually installed in a non-standard path.
687 # Do this before enabling all the warning flags, as the
688 # AC_LANG_PROGRAM-generated program may generate some warning, which makes this
689 # test fail unnecessarily.
691 # Older versions of the pkg-config macros disallows PKG_* in the autoconf
692 # output. Specifically allow pkg_config_libdir to be able to print the
694 m4_pattern_allow([PKG_CONFIG_LIBDIR])
696 save_CFLAGS=${CFLAGS}
697 CFLAGS="${CFLAGS} ${AM_CFLAGS}"
703 G_STATIC_ASSERT(sizeof(size_t) == GLIB_SIZEOF_SIZE_T);
707 sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T. You probably need to set
708 PKG_CONFIG_LIBDIR to point to the right pkg-config files for your build
712 CFLAGS=${save_CFLAGS}
714 # Detect C and LD warning flags supported by the compiler.
716 # Detect warning flags supported by the C and C++ compilers and append them to
717 # WARN_CFLAGS and WARN_CXXFLAGS.
719 m4_define([WARN_FLAGS_LIST], [ dnl
722 -Wmissing-prototypes dnl
723 -Wmissing-declarations dnl
724 -Wnull-dereference dnl
726 -Wredundant-decls dnl
728 dnl GCC's -Wshadow warns about constructor parameters shadowing fields, but
729 dnl Clang's does not. Enable Clang's `-Wshadow-field-in-constructor`, to make
730 dnl Clang warn about that.
731 -Wshadow-field-in-constructor dnl
733 -Wjump-misses-init dnl
734 -Wsuggest-attribute=format dnl
735 -Wtautological-constant-out-of-range-compare dnl
739 -Wstrict-aliasing dnl
740 -Wmissing-noreturn dnl
742 -Wduplicated-cond dnl
743 -Wduplicated-branches dnl
745 -Wsuggest-override dnl
746 -Wno-unused-parameter dnl
747 -Wno-sign-compare dnl
749 dnl Some versions of SWIG (like 3.0.12) generate code that produces
750 dnl -Wcast-function-type warnings. This warning is present in gcc >= 8. This
751 dnl combo happens on RHEL/Centos 8, for example. Later versions of SWIG (like
752 dnl 4.0.1) have the correct function signatures to not produce this warning.
753 dnl It's simpler to just disable the warning globally.
755 dnl Note that the Debian/Ubuntu SWIG package 3.0.12-2 contains a local patch to
756 dnl fix this (python-fix-function-cast-warnings.patch), so you won't be able to
757 dnl reproduce the warning using that package.
759 dnl Ref: https://github.com/swig/swig/issues/1259
760 -Wno-cast-function-type dnl
761 -Wno-missing-field-initializers dnl
762 -Wno-maybe-uninitialized dnl
765 # Pass -Werror as an extra flag during the test: this is needed to make the
766 # -Wunknown-warning-option diagnostic fatal with clang.
768 AX_APPEND_COMPILE_FLAGS([WARN_FLAGS_LIST], [WARN_CXXFLAGS], [-Werror])
770 AX_APPEND_COMPILE_FLAGS([WARN_FLAGS_LIST], [WARN_CFLAGS], [-Werror])
772 AE_IF_FEATURE_ENABLED([Werror], [WARN_CXXFLAGS="${WARN_CXXFLAGS} -Werror"])
773 AE_IF_FEATURE_ENABLED([Werror], [WARN_CFLAGS="${WARN_CFLAGS} -Werror"])
775 # The test used in AX_APPEND_COMPILE_FLAGS, generated using AC_LANG_PROGRAM, is
776 # written in such a way that it triggers warnings with the following warning
777 # flags. So they would always end up disabled if we put them there, because
778 # the test program would not build.
780 # Enable them here unconditionally. They are supported by GCC >= 4.8 and by
781 # Clang >= 3.3 (required by the project) and are only valid for C code.
782 WARN_CFLAGS="${WARN_CFLAGS} -Wold-style-definition -Wstrict-prototypes"
784 # CFLAGS from AX_APPEND_COMPILE_FLAGS.
785 AM_CXXFLAGS="${AM_CXXFLAGS} ${WARN_CXXFLAGS}"
786 AM_CFLAGS="${AM_CFLAGS} ${WARN_CFLAGS}"
788 # Done for AM_CXXFLAGS, AM_CFLAGS and AM_LDFLAGS.
789 AC_SUBST(AM_CXXFLAGS)
793 # Set global CPPFLAGS in AM_CPPFLAGS
794 AM_CPPFLAGS="-I\$(top_srcdir)/include -I\$(top_builddir)/src -I\$(top_srcdir)/src -include common/config.h"
795 AC_SUBST(AM_CPPFLAGS)
797 # Add glib to global link libs
798 LIBS="$LIBS $GLIB_LIBS"
800 # Abuse autoconf's AC_ARG_PROGRAM output variable 'program_transform_name'
801 # to rename babeltrace2.bin to babeltrace2 at install time.
802 program_transform_name="s&babeltrace2\.bin&babeltrace2&;$program_transform_name"
803 AC_SUBST(program_transform_name)
807 doc/api/libbabeltrace2/Doxyfile
808 doc/api/libbabeltrace2/Makefile
809 doc/bindings/Makefile
810 doc/bindings/python/Makefile
811 doc/contributing-images/Makefile
813 doc/man/asciidoc-attrs.conf
817 src/babeltrace2-ctf-writer.pc
819 src/bindings/Makefile
820 src/bindings/python/bt2/bt2/version.py
821 src/bindings/python/bt2/Makefile
822 src/bindings/python/bt2/setup.py
823 src/bindings/python/Makefile
827 src/plugins/common/Makefile
828 src/plugins/ctf/common/metadata/Makefile
829 src/plugins/ctf/Makefile
830 src/plugins/lttng-utils/Makefile
832 src/plugins/text/Makefile
833 src/plugins/utils/Makefile
834 tests/bitfield/Makefile
835 tests/ctf-writer/Makefile
837 tests/lib/test-plugin-plugins/Makefile
838 tests/lib/conds/Makefile
839 tests/lib/utils/Makefile
841 tests/param-validation/Makefile
842 tests/plugins/Makefile
843 tests/plugins/src.ctf.fs/Makefile
844 tests/plugins/src.ctf.fs/succeed/Makefile
845 tests/plugins/sink.ctf.fs/Makefile
846 tests/plugins/sink.ctf.fs/succeed/Makefile
847 tests/plugins/flt.lttng-utils.debug-info/Makefile
848 tests/plugins/flt.utils.muxer/Makefile
849 tests/plugins/flt.utils.muxer/succeed/Makefile
850 tests/plugins/flt.utils.trimmer/Makefile
851 tests/plugins/sink.text.pretty/Makefile
853 tests/utils/tap/Makefile
856 AC_CONFIG_FILES([tests/utils/env.sh],[chmod +x tests/utils/env.sh])
861 # Mini-report on what will be built.
870 AS_IF([test -n "bt_version_name"], [
871 AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION \"bt_version_name\"$PPRINT_COLOR_RST")
873 AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION")
878 AS_IF([test -n "bt_version_description"], [
879 AS_IF([test -n "$FOLD"], [
880 AS_ECHO("`AS_ECHO("bt_version_description") | $FOLD -s`")
882 AS_ECHO("bt_version_description")
888 PPRINT_SUBTITLE([System])
890 # Target architecture we're building for.
891 target_arch=$host_cpu
894 if test $f = "-m32"; then
896 elif test $f = "-m64"; then
902 PPRINT_PROP_STRING([Target architecture], $target_arch)
905 PPRINT_SUBTITLE([Python 3 language support])
906 test "x$have_python" = "xyes" && value=1 || value=0
907 PPRINT_PROP_BOOL([Have Python interpreter], $value)
908 test "x$have_python_dev" = "xyes" && value=1 || value=0
909 PPRINT_PROP_BOOL([Have Python development libraries], $value)
910 test "x$enable_python_bindings" = "xyes" && value=1 || value=0
911 PPRINT_PROP_BOOL_CUSTOM([Python bindings], $value, [To enable, use --enable-python-bindings])
912 test "x$enable_python_plugins" = "xyes" && value=1 || value=0
913 PPRINT_PROP_BOOL_CUSTOM([Python plugin support], $value, [To enable, use --enable-python-plugins])
914 AS_IF([test "x$have_python" = "xyes"], [
915 PPRINT_PROP_STRING([Python interpreter path], [$PYTHON])
917 AS_IF([test "x$have_python_dev" = "xyes"], [
918 PPRINT_PROP_STRING([python-config path], [$PYTHON_CONFIG])
919 PPRINT_PROP_STRING([Python include paths], [$PYTHON_INCLUDE])
920 PPRINT_PROP_STRING([Python linker flags], [$PYTHON_LDFLAGS])
922 AE_IF_FEATURE_ENABLED([python-bindings], [
923 PPRINT_PROP_STRING([SWIG executable], [$SWIG])
924 PPRINT_PROP_STRING([SWIG library], [$SWIG_LIB])
928 PPRINT_SUBTITLE([Plugins])
929 PPRINT_PROP_BOOL(['ctf' plugin], 1)
930 test "x$enable_debug_info" = "xyes" && value=1 || value=0
931 PPRINT_PROP_BOOL_CUSTOM(['lttng-utils' plugin], $value, [To enable, use --enable-debug-info])
932 PPRINT_PROP_BOOL(['text' plugin], 1)
933 PPRINT_PROP_BOOL(['utils' plugin], 1)
936 PPRINT_SUBTITLE([Built-in features])
937 test "x$enable_built_in_plugins" = "xyes" && value=1 || value=0
938 PPRINT_PROP_BOOL_CUSTOM([Built-in plugins], $value, [To enable, use --enable-built-in-plugins])
939 test "x$enable_built_in_python_plugin_support" = "xyes" && value=1 || value=0
940 PPRINT_PROP_BOOL_CUSTOM([Built-in Python plugin support], $value, [To enable, use --enable-built-in-python-plugin-support])
943 PPRINT_SUBTITLE([Documentation])
945 # man pages build enabled/disabled
946 m4_pushdef([build_man_pages_msg], [Build and install man pages])
948 AE_IF_FEATURE_ENABLED([man-pages], [
950 PPRINT_PROP_BOOL([build_man_pages_msg], 1)
952 AS_IF([test "x$have_asciidoc_xmlto" = "xyes"], [
953 PPRINT_PROP_BOOL([build_man_pages_msg], 1)
955 PPRINT_PROP_STRING([build_man_pages_msg],
956 [${PPRINT_COLOR_BLDGRN}yes (already built)],
957 $PPRINT_COLOR_SUBTITLE)
961 PPRINT_PROP_BOOL_CUSTOM([build_man_pages_msg], 0, [To build man pages, use --enable-man-pages])
964 m4_popdef([build_man_pages_msg])
966 test "x$enable_api_doc" = "xyes" && value=1 || value=0
967 PPRINT_PROP_BOOL_CUSTOM([HTML API documentation], $value, [To build documentation, use --enable-api-doc])
968 test "x$enable_python_bindings_doc" = "xyes" && value=1 || value=0
969 PPRINT_PROP_BOOL_CUSTOM([Python bindings documentation], $value, [To build the Python bindings documentation, use --enable-python-bindings-doc])
972 PPRINT_SUBTITLE([Logging])
973 PPRINT_PROP_STRING([Minimal log level], $BABELTRACE_MINIMAL_LOG_LEVEL)
976 PPRINT_SUBTITLE([Special build modes])
977 PPRINT_PROP_BOOL_CUSTOM([Debug mode], $BABELTRACE_DEBUG_MODE, [To enable, set the BABELTRACE_DEBUG_MODE environment variable to 1])
978 PPRINT_PROP_BOOL_CUSTOM([Developer mode], $BABELTRACE_DEV_MODE, [To enable, set the BABELTRACE_DEV_MODE environment variable to 1])
980 report_bindir="`eval eval echo $bindir`"
981 report_libdir="`eval eval echo $libdir`"
982 report_sysconfdif="`eval eval echo $sysconfdir`"
983 report_pluginsdir="`eval eval eval echo $BABELTRACE_PLUGINS_DIR`"
984 report_pluginprovidersdir="`eval eval eval echo $BABELTRACE_PLUGIN_PROVIDERS_DIR`"
986 # Print the bindir and libdir this `make install' will install into.
988 PPRINT_SUBTITLE([Install directories])
989 PPRINT_PROP_STRING([Binaries], [$report_bindir])
990 PPRINT_PROP_STRING([Libraries], [$report_libdir])
991 PPRINT_PROP_STRING([Plugins], [$report_pluginsdir])
992 PPRINT_PROP_STRING([Plugin providers], [$report_pluginprovidersdir])
993 PPRINT_PROP_STRING([Configuration], [$report_sysconfdif])
995 # vim: shiftwidth=2 softtabstop=2 expandtab