tests: return the proper TAP exit code
[babeltrace.git] / configure.ac
index de5553b94a141f86e6504082b5ab82874fdc552d..7887ef4176ba631b7b389a8da8d59f028a1e87f0 100644 (file)
+dnl Process this file with autoconf to produce a configure script.
+dnl
+dnl Copyright (c) 2017 EfficiOS, Inc.
+dnl
+dnl Permission is hereby granted, free of charge, to any person obtaining a copy
+dnl of this software and associated documentation files (the "Software"), to deal
+dnl in the Software without restriction, including without limitation the rights
+dnl to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+dnl copies of the Software, and to permit persons to whom the Software is
+dnl furnished to do so, subject to the following conditions:
+dnl
+dnl The above copyright notice and this permission notice shall be included in
+dnl all copies or substantial portions of the Software.
+dnl
+dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+dnl IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+dnl FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+dnl AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+dnl LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+dnl OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+dnl SOFTWARE.
+
+##                     ##
+## Autoconf base setup ##
+##                     ##
+
 AC_PREREQ([2.50])
-AC_INIT([babeltrace],[2.0.0-pre],[jeremie dot galarneau at efficios dot com])
+
+m4_define([bt_version_major], [2])
+m4_define([bt_version_minor], [0])
+m4_define([bt_version_patch], [7])
+m4_define([bt_version_dev_stage], [])
+m4_define([bt_version], bt_version_major[.]bt_version_minor[.]bt_version_patch[]bt_version_dev_stage)
+m4_define([bt_version_name], [Amqui])
+
+AC_INIT([babeltrace2], bt_version, [jeremie dot galarneau at efficios dot com], [], [https://efficios.com/babeltrace/])
+AC_PROG_SED
 
 # Following the numbering scheme proposed by libtool for the library version
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-AC_SUBST([BABELTRACE_LIBRARY_VERSION], [2:0:0])
+m4_define([bt_lib_version_current], [0])
+m4_define([bt_lib_version_revision], [0])
+m4_define([bt_lib_version_age], [0])
+m4_define([bt_lib_version], bt_lib_version_current[:]bt_lib_version_revision[:]bt_lib_version_age)
+
+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."
+bt_version_description_c_safe=$(echo $bt_version_description | $SED 's/"/\\"/g')
+
+AC_SUBST([BABELTRACE_LIBRARY_VERSION], bt_lib_version)
 
-AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_HEADERS([src/common/config.h])
 AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_MACRO_DIR([m4])
 
+AC_DEFINE([BT_VERSION_MAJOR], bt_version_major, [Babeltrace major version])
+AC_DEFINE([BT_VERSION_MINOR], bt_version_minor, [Babeltrace minor version])
+AC_DEFINE([BT_VERSION_PATCH], bt_version_patch, [Babeltrace patch version])
+AC_DEFINE([BT_VERSION_DEV_STAGE], ["]bt_version_dev_stage["], [Babeltrace version development stage (can be empty)])
+AC_DEFINE([BT_VERSION_NAME], ["]bt_version_name["], [Babeltrace version name])
+AC_DEFINE_UNQUOTED([BT_VERSION_DESCRIPTION], ["$bt_version_description_c_safe"], [Babeltrace version description])
+
 AC_CANONICAL_TARGET
 AC_CANONICAL_HOST
 
-AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip tar-ustar])
+
+##                     ##
+## Automake base setup ##
+##                     ##
+
+AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip tar-ustar nostdinc])
 AM_MAINTAINER_MODE([enable])
 
 # Enable silent rules if available (Introduced in AM 1.11)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
-AC_REQUIRE_AUX_FILE([tap-driver.sh])
 
-# Checks for C compiler
+##                      ##
+## OS specific defaults ##
+##                      ##
+
+MINGW32=no
+DEFAULT_ENABLE_DEBUG_INFO=yes
+LT_NO_UNDEFINED=""
+AS_CASE([$host_os],
+  [solaris*|darwin*],
+    [
+       DEFAULT_ENABLE_DEBUG_INFO=no
+    ],
+  [freebsd*],
+    [
+       DEFAULT_ENABLE_DEBUG_INFO=no
+    ],
+  [cygwin*],
+    [
+       DEFAULT_ENABLE_DEBUG_INFO=no
+       LT_NO_UNDEFINED="-no-undefined"
+    ],
+  [mingw*],
+    [
+       MINGW32=yes
+       DEFAULT_ENABLE_DEBUG_INFO=no
+       LT_NO_UNDEFINED="-no-undefined"
+    ]
+)
+
+AM_CONDITIONAL([BABELTRACE_BUILD_WITH_MINGW], [test "x$MINGW32" = "xyes"])
+AC_SUBST(LT_NO_UNDEFINED)
+
+
+##                   ##
+## C compiler checks ##
+##                   ##
+
 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
+
+# Choose the c compiler
 AC_PROG_CC
-AC_PROG_CC_STDC
+m4_version_prereq([2.70], [], [AC_PROG_CC_STDC])
 
-# Checks for programs.
-AC_PROG_MAKE_SET
-LT_INIT
-AC_PROG_YACC
-AC_PROG_LEX
-AC_PROG_MKDIR_P
-AC_PROG_LN_S
+# Make sure the c compiler supports C99
+AS_IF([test "$ac_cv_prog_cc_c99" = "no"], [AC_MSG_ERROR([The compiler does not support C99])])
 
+# Make sure the c compiler supports __attributes__
 AX_C___ATTRIBUTE__
-AS_IF([test "x$ax_cv___attribute__" = "xyes"],
-       [:],
-       [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
+AS_IF([test "x$ax_cv___attribute__" != "xyes"],
+  [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
 
-AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])])
-LIBS="$PTHREAD_LIBS $LIBS"
-CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-CC="$PTHREAD_CC"
+# Make sur we have pthread support
+AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])])
 
-# Check linker option
-AX_APPEND_LINK_FLAGS([-Wl,--no-as-needed], [LD_NO_AS_NEEDED])
-AC_SUBST([LD_NO_AS_NEEDED])
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_INLINE
+AC_C_TYPEOF
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_INT16_T
+AC_TYPE_INT32_T
+AC_TYPE_INT64_T
+AC_TYPE_INT8_T
+AC_TYPE_OFF_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_UINT8_T
+AC_CHECK_TYPES([ptrdiff_t])
+
+
+##               ##
+## Header checks ##
+##               ##
 
 AC_HEADER_STDBOOL
 AC_CHECK_HEADERS([ \
        fcntl.h \
        float.h \
+       ftw.h \
        libintl.h \
        limits.h \
        malloc.h \
@@ -59,66 +163,129 @@ AC_CHECK_HEADERS([ \
        netinet/in.h \
        stddef.h \
        sys/socket.h \
+       sys/time.h
 ])
 
-if test ! -f "$srcdir/formats/ctf/metadata/ctf-parser.h"; then
-        if test x"$(basename "$YACC")" != "xbison -y"; then
-                AC_MSG_ERROR([[bison not found and is required when building from git.
-                Please install bison]])
-        fi
-        AC_PATH_PROG([BISON],[bison])
-        AX_PROG_BISON_VERSION([2.4], [],[
-                AC_MSG_ERROR([[Bison >= 2.4 is required when building from git]])
-        ])
-fi
-
-if test ! -f "$srcdir/formats/ctf/metadata/ctf-lexer.c"; then
-        if test x"$LEX" != "xflex"; then
-                AC_MSG_ERROR([[flex not found and is required when building from git.
-                Please install flex]])
-        fi
-        AC_PATH_PROG([FLEX],[flex])
-        AX_PROG_FLEX_VERSION([2.5.35], [],[
-                AC_MSG_ERROR([[Flex >= 2.5.35 is required when building from git]])
-        ])
-fi
-
-
-AM_PATH_GLIB_2_0(2.22.0, ,AC_MSG_ERROR([glib is required in order to compile BabelTrace - download it from ftp://ftp.gtk.org/pub/gtk]) , gmodule)
+
+##               ##
+## Linker checks ##
+##               ##
+
+# Check if the linker supports no-as-needed
+AX_APPEND_LINK_FLAGS([-Wl,--no-as-needed], [LD_NO_AS_NEEDED])
+AC_SUBST([LD_NO_AS_NEEDED])
+
+# Check if the linker supports whole-archive
+AX_CHECK_LINK_FLAG([-Wl,--whole-archive,--no-whole-archive],
+  [
+    AC_SUBST([LD_WHOLE_ARCHIVE], [-Wl,--whole-archive,])
+    AC_SUBST([LD_NO_WHOLE_ARCHIVE], [,--no-whole-archive])
+  ],[
+    # Fallback to force_load for the macOS linker
+    AX_CHECK_LINK_FLAG([-Wl,-force_load],
+      [
+        AC_SUBST([LD_WHOLE_ARCHIVE], [-Wl,-force_load,])
+        AC_SUBST([LD_NO_WHOLE_ARCHIVE], [])
+      ],[
+        AC_MSG_WARN([Can't find a linker option to force the inclusion of the static plugin archive objects.])
+      ]
+    )
+  ]
+)
+
+# Initialize and configure libtool
+LT_INIT([win32-dll])
+
+# Check if the linker supports the "notext" keyword
+AX_CHECK_LINK_FLAG([-Wl,-z,notext],[
+       AC_SUBST([LD_NOTEXT], [-Wl,-z,notext])
+])
+
+
+##                 ##
+## Programs checks ##
+##                 ##
+
+AC_PROG_MAKE_SET
+AC_PROG_MKDIR_P
+AC_PROG_LN_S
+AC_PATH_PROG([report_fold], [fold])
+
+# set $IN_GIT_REPO if we're in the Git repository; the `bootstrap` file
+# is not distributed in tarballs
+AS_IF([test -f "$srcdir/bootstrap"], [in_git_repo=yes], [in_git_repo=no])
+AM_CONDITIONAL([IN_GIT_REPO], [test "x$in_git_repo" = "xyes"])
+
+# check for bison
+AC_PROG_YACC
+AX_PROG_BISON_VERSION([2.5], [have_bison=yes])
+
+AS_IF([test "x$have_bison" != "xyes"], [
+  AS_IF([test "x$in_git_repo" = "xyes"], [
+    AC_MSG_FAILURE([dnl
+Bison >= 2.5 is required when building from the Git repository. You can
+set the YACC variable to override automatic detection.
+    ])
+  ], [
+    AC_MSG_WARN([dnl
+Missing Bison >= 2.5. Note that the parser files are already built in
+this distribution tarball, so Bison is only needed if you intend to
+modify their sources. You can set the YACC variable to override automatic
+detection.
+    ])
+  ])
+])
+AM_CONDITIONAL([HAVE_BISON], [test "x$have_bison" = "xyes"])
+
+# check for flex
+# Prior to autoconf 2.70, AC_PROG_FLEX did not take an argument. This is not a
+# problem since the argument is silently ignored by older versions.
+AC_PROG_LEX([noyywrap])
+AX_PROG_FLEX_VERSION([2.5.35], [have_flex=yes])
+
+AS_IF([test "x$have_flex" != "xyes"], [
+  AS_IF([test "x$in_git_repo" = "xyes"], [
+    AC_MSG_FAILURE([dnl
+Flex >= 2.5.35 is required when building from the Git repository. You can
+set the LEX variable to override automatic detection.
+    ])
+  ], [
+    AC_MSG_WARN([dnl
+Missing Flex >= 2.5.35. Note that the lexer files are already built in
+this distribution tarball, so Flex is only needed if you intend to
+modify their sources. You can set the LEX variable to override automatic
+detection.
+    ])
+  ])
+])
+AM_CONDITIONAL([HAVE_FLEX], [test "x$have_flex" = "xyes"])
+
+
+##                ##
+## Library checks ##
+##                ##
 
 # Check what libraries are required on this platform to link sockets programs.
 AX_LIB_SOCKET_NSL
 
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_INLINE
-AC_TYPE_PID_T
-AC_TYPE_SIZE_T
-AC_TYPE_INT16_T
-AC_TYPE_INT32_T
-AC_TYPE_INT64_T
-AC_TYPE_INT8_T
-AC_TYPE_OFF_T
-AC_TYPE_SSIZE_T
-AC_TYPE_UINT16_T
-AC_TYPE_UINT32_T
-AC_TYPE_UINT64_T
-AC_TYPE_UINT8_T
+# Check for glib >= 2.28 with gmodule support
+AM_PATH_GLIB_2_0([2.28.0], [],
+  AC_MSG_ERROR([glib >= 2.28 is required - download it from ftp://ftp.gtk.org/pub/gtk]),
+  [gmodule-no-export]
+)
 
 # Checks for library functions.
 AC_FUNC_ALLOCA
 AC_FUNC_FORK
-AC_FUNC_MALLOC
 AC_FUNC_MKTIME
 AC_FUNC_MMAP
-AC_FUNC_REALLOC
 AC_FUNC_STRERROR_R
+AC_FUNC_STRNLEN
 AC_CHECK_FUNCS([ \
        atexit \
-       dirfd \
        dup2 \
        ftruncate \
        gethostbyname \
-       gethostname \
        gettimeofday \
        localtime_r \
        memchr \
@@ -135,389 +302,544 @@ AC_CHECK_FUNCS([ \
        strndup \
        strnlen \
        strrchr \
+       strstr \
        strtoul \
        strtoull \
        tzset \
-       uname \
 ])
 
-MINGW32=no
-DEFAULT_ENABLE_DEBUG_INFO=yes
-AS_CASE([$host_os],
-  [solaris*|darwin*],
-    [
-       DEFAULT_ENABLE_DEBUG_INFO=no
-    ],
-  [mingw*],
-    [
-       MINGW32=yes
-    ]
-)
-
-AM_CONDITIONAL([BABELTRACE_BUILD_WITH_MINGW], [test "x$MINGW32" = "xyes"])
-
-# Check for uuid in system libs
-AC_CHECK_FUNCS([uuid_generate],
-[
-  AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBUUID], 1, [Has libuuid support.])
-  link_with_libuuid=no
-],
-[
-  # First, check the pkg-config module is available, otherwise explicitly check
-  # for libuuid, or uuid support in the C-library.
-  PKG_CHECK_MODULES([UUID], [uuid],
-  [
-    LIBS="${UUID_LIBS} ${LIBS}"
-    CFLAGS="${CFLAGS} ${UUID_CFLAGS}"
-    AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBUUID], 1, [Has libuuid support.])
-    link_with_libuuid=yes
-  ],
-  [
-    # Check for libuuid
-    AC_CHECK_LIB([uuid], [uuid_generate],
-    [
-      AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBUUID], 1, [Has libuuid support.])
-      link_with_libuuid=yes
-    ],
-    [
-      # libuuid not found, check for uuid_create in libc.
-      AC_CHECK_LIB([c], [uuid_create],
-      [
-        AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
-        link_with_libc_uuid=yes
-      ],
-      [
-        # for MinGW32 we have our own internal implementation of uuid using Windows functions.
-        if test "x$MINGW32" = xno; then
-          AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
-        fi
-      ])
-    ])
-  ])
-])
-
-AM_CONDITIONAL([BABELTRACE_BUILD_WITH_LIBUUID], [test "x$link_with_libuuid" = "xyes"])
-AM_CONDITIONAL([BABELTRACE_BUILD_WITH_LIBC_UUID], [test "x$link_with_libc_uuid" = "xyes"])
+# AC_FUNC_MALLOC causes problems when cross-compiling.
+#AC_FUNC_MALLOC
+#AC_FUNC_REALLOC
 
 # Check for fmemopen
 AC_CHECK_LIB([c], [fmemopen],
-[
-       AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_FMEMOPEN], 1, [Has fmemopen support.])
-]
+  [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_FMEMOPEN], 1, [Has fmemopen support.])]
 )
 
 # Check for open_memstream
 AC_CHECK_LIB([c], [open_memstream],
-[
-       AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_OPEN_MEMSTREAM], 1, [Has open_memstream support.])
-]
+  [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_OPEN_MEMSTREAM], 1, [Has open_memstream support.])]
 )
 
 # Check for posix_fallocate
 AC_CHECK_LIB([c], [posix_fallocate],
-[
-       AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_POSIX_FALLOCATE], 1, [Has posix_fallocate support.])
-]
+  [AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_POSIX_FALLOCATE], 1, [Has posix_fallocate support.])]
 )
 
-# Check for faccessat
-AC_CHECK_LIB([c], [faccessat],
-[
-       AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_FACCESSAT], 1, [Has faccessat support.])
-]
+##                 ##
+## User variables  ##
+##                 ##
+
+AC_ARG_VAR([PYTHON_INCLUDE], [Include flags for Python, bypassing python-config])
+AC_ARG_VAR([PYTHON_LDFLAGS], [Linker flags for Python, bypassing python-config])
+AC_ARG_VAR([PYTHON_CONFIG], [Path to python-config])
+
+# BABELTRACE_PLUGINS_DIR: Plugins directory
+AC_ARG_VAR([BABELTRACE_PLUGINS_DIR], [built-in plugins install directory [LIBDIR/babeltrace2/plugins]])
+AS_IF([test "x$BABELTRACE_PLUGINS_DIR" = x], [BABELTRACE_PLUGINS_DIR='${libdir}/babeltrace2/plugins'])
+
+# BABELTRACE_PLUGIN_PROVIDERS_DIR: Plugin providers directory
+AC_ARG_VAR([BABELTRACE_PLUGIN_PROVIDERS_DIR], [built-in plugin providers install directory [LIBDIR/babeltrace2/plugin-providers]])
+AS_IF([test "x$BABELTRACE_PLUGIN_PROVIDERS_DIR" = x], [BABELTRACE_PLUGIN_PROVIDERS_DIR='${libdir}/babeltrace2/plugin-providers'])
+
+# BABELTRACE_MINIMAL_LOG_LEVEL:
+AC_ARG_VAR([BABELTRACE_MINIMAL_LOG_LEVEL], [Minimal log level for Babeltrace program, library, and plugins (TRACE, DEBUG (default), or INFO)])
+AS_IF([test "x$BABELTRACE_MINIMAL_LOG_LEVEL" = x], [BABELTRACE_MINIMAL_LOG_LEVEL="DEBUG"])
+AS_IF([test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "TRACE" && \
+       test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "DEBUG" && \
+       test "$BABELTRACE_MINIMAL_LOG_LEVEL" != "INFO"],
+  [AC_MSG_ERROR([Invalid BABELTRACE_MINIMAL_LOG_LEVEL value ($BABELTRACE_MINIMAL_LOG_LEVEL): use TRACE, DEBUG, or INFO.])]
 )
+AC_DEFINE_UNQUOTED([BT_MINIMAL_LOG_LEVEL], [BT_LOG_$BABELTRACE_MINIMAL_LOG_LEVEL], [Minimal log level])
 
-AC_CHECK_LIB([popt], [poptGetContext], [],
-        [AC_MSG_ERROR([Cannot find popt.])]
-)
+# BABELTRACE_DEV_MODE:
+AC_ARG_VAR([BABELTRACE_DEV_MODE], [Set to 1 to enable the Babeltrace developer mode (enables run-time checks for plugin developers)])
+AS_IF([test "x$BABELTRACE_DEV_MODE" = x1], [
+       AC_DEFINE([BT_DEV_MODE], 1, [Babeltrace developer mode])
+], [BABELTRACE_DEV_MODE=0])
 
-# Plugins
-AC_ARG_VAR([PLUGINSDIR], [built-in plugins install directory [LIBDIR/babeltrace/plugins]])
-AS_IF([test "x$PLUGINSDIR" = x], [PLUGINSDIR='$(libdir)/babeltrace/plugins'])
+# BABELTRACE_DEBUG_MODE:
+AC_ARG_VAR([BABELTRACE_DEBUG_MODE], [Set to 1 to enable the Babeltrace debug mode (enables internal assertions for Babeltrace maintainers)])
+AS_IF([test "x$BABELTRACE_DEBUG_MODE" = x1], [
+       AC_DEFINE([BT_DEBUG_MODE], 1, [Babeltrace debug mode])
+], [BABELTRACE_DEBUG_MODE=0])
 
-# For Python
-# SWIG version needed or newer:
-swig_version=2.0.0
 
+##                              ##
+## Optionnal features selection ##
+##                              ##
+
+# Python bindings
+# Disabled by default
 AC_ARG_ENABLE([python-bindings],
-              [AC_HELP_STRING([--enable-python-bindings],
-                              [generate Python bindings])],
-              [enable_python_bindings=yes], [enable_python_bindings=no])
-
-AM_CONDITIONAL([USE_PYTHON], [test "x${enable_python_bindings:-yes}" = xyes])
-
-AC_ARG_ENABLE(
-       [python-plugins],
-       [AC_HELP_STRING(
-               [--enable-python-plugins],
-               [add support for the Babeltrace library and converter to load Python plugins])
-       ],
-       [enable_python_plugins=yes],
-       [enable_python_plugins=no]
+  [AS_HELP_STRING([--enable-python-bindings], [build the Python bindings])],
+  [], dnl AC_ARG_ENABLE will fill enable_python_bindings with the user choice
+  [enable_python_bindings=unspecified]
+)
+
+# Python bindings documentation
+# Disabled by default
+AC_ARG_ENABLE([python-bindings-doc],
+  [AS_HELP_STRING([--enable-python-bindings-doc], [build the Python bindings documentation])],
+  [], dnl AC_ARG_ENABLE will fill enable_python_bindings_doc with the user choice
+  [enable_python_bindings_doc=no]
+)
+
+# Python plugins
+# Disabled by default
+AC_ARG_ENABLE([python-plugins],
+  [AS_HELP_STRING([--enable-python-plugins], [enable the Python plugins support for the library and converter])]
+  dnl AC_ARG_ENABLE will fill enable_python_plugins with the user choice
+)
+
+# Debug info
+# Enabled by default, except on some platforms
+AC_ARG_ENABLE([debug-info],
+  [AS_HELP_STRING([--disable-debug-info], [disable the debug info support (default on macOS, Solaris and Windows)])],
+  [], dnl AC_ARG_ENABLE will fill enable_debug_info with the user choice
+  [enable_debug_info="$DEFAULT_ENABLE_DEBUG_INFO"]
+)
+
+# API documentation
+# Disabled by default
+AC_ARG_ENABLE([api-doc],
+  [AS_HELP_STRING([--enable-api-doc], [build the HTML API documentation])],
+  [enable_api_doc=$enableval]
+)
+
+# Built-in plugins
+# Disabled by default
+AC_ARG_ENABLE([built-in-plugins],
+  [AS_HELP_STRING([--enable-built-in-plugins], [Statically-link in-tree plug-ins into the babeltrace2 executable])]
+  dnl AC_ARG_ENABLE will fill enable_built_in_plugins with the user choice
+)
+
+# Built-in python plugin support
+# Disabled by default
+AC_ARG_ENABLE([built-in-python-plugin-support],
+  [AS_HELP_STRING([--enable-built-in-python-plugin-support], [Statically-link Python plugin support into the babeltrace library])]
+  dnl AC_ARG_ENABLE will fill enable_built_in_python_plugin_support with the user choice
+)
+
+# Man pages
+# Enabled by default
+AC_ARG_ENABLE([man-pages],
+  [AS_HELP_STRING([--disable-man-pages], [Do not build and install man pages (already built in a distributed tarball])],
+  [], dnl AC_ARG_ENABLE will fill enable_man_pages with the user choice
+  [enable_man_pages=yes]
+)
+
+
+# Set automake variables for optionnal feature conditionnals in Makefile.am
+AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS], [test "x$enable_python_bindings" = xyes])
+AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS_DOC], [test "x$enable_python_bindings_doc" = xyes])
+AM_CONDITIONAL([ENABLE_PYTHON_PLUGINS], [test "x$enable_python_plugins" = xyes])
+AM_CONDITIONAL([ENABLE_DEBUG_INFO], [test "x$enable_debug_info" = xyes])
+AM_CONDITIONAL([ENABLE_API_DOC], [test "x$enable_api_doc" = xyes])
+AM_CONDITIONAL([ENABLE_BUILT_IN_PLUGINS], [test "x$enable_built_in_plugins" = xyes])
+AM_CONDITIONAL([ENABLE_BUILT_IN_PYTHON_PLUGIN_SUPPORT], [test "x$enable_built_in_python_plugin_support" = xyes])
+AM_CONDITIONAL([ENABLE_MAN_PAGES], [test "x$enable_man_pages" = xyes])
+AM_CONDITIONAL([ENABLE_PYTHON_COMMON_DEPS], [test "x$enable_python_bindings" = xyes || test "x$enable_python_plugins" = xyes])
+
+# Set defines for optionnal features conditionnals in the source code
+
+## jgalar: still used?
+AS_IF([test "x$enable_python_plugins" = xyes],
+  [AC_DEFINE([PYTHON_PLUGINS], [1], [Python plugin support.])]
+)
+
+AS_IF([test "x$enable_debug_info" = xyes],
+  [AC_DEFINE([ENABLE_DEBUG_INFO], [1], [Define to 1 if you enable the 'debug info' feature])]
+)
+
+AS_IF([test "x$enable_built_in_plugins" = xyes],
+  [AC_DEFINE([BT_BUILT_IN_PLUGINS], [1], [Define to 1 to register plug-in attributes in static executable sections])]
+)
+
+AS_IF([test "x$enable_built_in_python_plugin_support" = xyes],
+  [AC_DEFINE([BT_BUILT_IN_PYTHON_PLUGIN_SUPPORT], [1], [Define to 1 to register plug-in attributes in static executable sections])]
+)
+
+AS_IF([test "x$enable_debug_info" = xyes],
+  [ENABLE_DEBUG_INFO_VAL=1],
+  [ENABLE_DEBUG_INFO_VAL=0]
+)
+
+AC_SUBST([ENABLE_DEBUG_INFO_VAL])
+
+# Check for conflicting Python related features user choices.
+AS_IF([test "x$enable_python_plugins" = xyes],
+  [
+    AS_IF([test "x$enable_python_bindings" = xunspecified],
+      [
+        # --enable-python-plugins was provided but --enable-python-bindings was
+        # omitted. Turn the Python bindings ON anyway because it's needed to
+        # use the Python plugins.
+        enable_python_bindings=yes
+      ],
+      [
+        AS_IF([test "x$enable_python_bindings" = xno],
+          [
+            # --enable-python-plugins _and_ --disable-python-bindings were
+            # used. This is invalid because Python plugins need the Python
+            # bindings to be useful.
+            AC_MSG_ERROR(--enable-python-bindings must be used to support Python plugins)
+          ]
+        )
+      ]
+    )
+  ]
+)
+
+# Check for conflicting optional features user choices
+
+AS_IF([test "x$enable_built_in_plugins" = xyes],
+  [
+    # Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
+    AS_IF([test "x$enable_static" != xyes], [AC_MSG_ERROR(--enable-static must be used to bundle plug-ins in the babeltrace2 executable)])
+    AS_IF([test "x$enable_shared" = xyes], [AC_MSG_ERROR(--disable-shared must be used to bundle plug-ins in the babeltrace2 executable)])
+  ]
+)
+
+AS_IF([test "x$enable_built_in_python_plugin_support" = xyes],
+  [
+    AS_IF([test "x$enable_python_plugins" != xyes], [AC_MSG_ERROR([--enable-python-plugins must be used to bundle Python plugin support in the babeltrace2 executable])])
+    # Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
+    AS_IF([test "x$enable_static" != xyes], [AC_MSG_ERROR(--enable-static must be used to bundle Python plugin support in the babeltrace2 executable)])
+    AS_IF([test "x$enable_shared" = xyes], [AC_MSG_ERROR(--disable-shared must be used to bundle Python plugin support in the babeltrace2 executable)])
+  ]
 )
 
-if test "x${enable_python_bindings:-yes}" = xyes; then
-  AX_PKG_SWIG($swig_version, [], [ AC_MSG_ERROR([SWIG $swig_version or newer is needed]) ])
-else
-    AC_MSG_NOTICE([You may configure with --enable-python-bindings ]dnl
-[if you want Python bindings.])
-fi
 
-if test "x$enable_python_bindings" != xno || test "x$enable_python_plugins" != xno; then
-  AM_PATH_PYTHON([3.0], , [AC_MSG_ERROR(Python3 is not available or is not the default Python interpreter on your system. See the README file to learn how to override your distribution's default Python interpreter.)])
+# Check for optionnal features dependencies
+
+AS_IF([test "x$enable_python_bindings" = xyes],
+  [AX_PKG_SWIG(2.0.0, [], [AC_MSG_ERROR([SWIG 2.0.0 or newer is required to build the python bindings])])]
+)
 
+AM_PATH_PYTHON([3.0], [
   AM_PATH_PYTHON_MODULES([PYTHON])
+
   # pythondir is the path where extra modules are to be installed
   pythondir=$PYTHON_PREFIX/$PYTHON_MODULES_PATH
+
   # pyexecdir is the path that contains shared objects used by the extra modules
   pyexecdir=$PYTHON_EXEC_PREFIX/$PYTHON_MODULES_PATH
-  AC_ARG_VAR([PYTHON_INCLUDE], [Include flags for Python, bypassing python-config])
-  AC_ARG_VAR([PYTHON_LIBS], [Library flags for Python, bypassing python-config])
-  AC_ARG_VAR([PYTHON_CONFIG], [Path to python-config])
-  AS_IF([test -z "$PYTHON_INCLUDE"], [
-    AS_IF([test -z "$PYTHON_CONFIG"], [
-      AC_PATH_PROGS([PYTHON_CONFIG],
-                    [python$PYTHON_VERSION-config python-config],
-                    [no],
-                    [`dirname $PYTHON`])
-      AS_IF([test "$PYTHON_CONFIG" = no], [AC_MSG_ERROR([cannot find python-config for $PYTHON. Do you have python-dev installed?])])
-    ])
-    AC_MSG_CHECKING([Python include flags])
-    PYTHON_INCLUDE=`$PYTHON_CONFIG --includes`
-    AC_MSG_RESULT([$PYTHON_INCLUDE])
-  ])
-  AS_IF([test -z "$PYTHON_LIBS"], [
-    AS_IF([test -z "$PYTHON_CONFIG"], [
-      AC_PATH_PROGS([PYTHON_CONFIG],
-                    [python$PYTHON_VERSION-config python-config],
-                    [no],
-                    [`dirname $PYTHON`])
-      AS_IF([test "$PYTHON_CONFIG" = no], [AC_MSG_ERROR([cannot find python-config for $PYTHON. Do you have python-dev installed?])])
-    ])
-    AC_MSG_CHECKING([Python library flags])
-    PYTHON_LIBS=`$PYTHON_CONFIG --libs`
-    AC_MSG_RESULT([$PYTHON_LIBS])
+
+  AS_IF([test -z "$PYTHON_CONFIG"], [
+    AC_PATH_PROGS([PYTHON_CONFIG],
+                  [python$PYTHON_VERSION-config python-config],
+                  [],
+                  [`dirname $PYTHON`])
   ])
-fi
 
-AM_CONDITIONAL([WITH_PYTHON_PLUGINS], [test "x$enable_python_plugins" != xno])
-AS_IF(
-  [test "x$enable_python_plugins" != xno],
-  AC_DEFINE_UNQUOTED([WITH_PYTHON_PLUGINS], [1], [Python plugin support.])
-)
+  AS_IF([test -n "$PYTHON_CONFIG"], [
+    AS_IF([test -z "$PYTHON_INCLUDE"], [
+      AC_MSG_CHECKING([Python include flags])
+      PYTHON_INCLUDE=`$PYTHON_CONFIG --includes`
+      AC_MSG_RESULT([$PYTHON_INCLUDE])
+    ])
 
-AC_ARG_ENABLE([python-bindings-doc],
-              [AC_HELP_STRING([--enable-python-bindings-doc],
-                              [generate Python bindings documentation])],
-              [enable_python_bindings_doc=yes], [enable_python_bindings_doc=no])
+    AS_IF([test -z "$PYTHON_LDFLAGS"], [
+      AC_MSG_CHECKING([Python library flags])
+      # Python 3.8+ requires that we pass --embed to get the -lpython3.x flag.
+      AS_IF([! PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags --embed`], [
+        PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags`
+      ])
+      AC_MSG_RESULT([$PYTHON_LDFLAGS])
+    ])
+  ])
+], [:])
 
-AM_CONDITIONAL([BUILD_PYTHON_BINDINGS_DOC], [test "x${enable_python_bindings_doc:-yes}" = xyes])
+AS_IF([test "$PYTHON" != :], [have_python=yes], [have_python=no])
+AS_IF([test -n "$PYTHON_CONFIG"], [have_python_dev=yes], [have_python_dev=no])
 
-AC_ARG_ENABLE([python-bindings-tests],
-              [AC_HELP_STRING([--enable-python-bindings-tests],
-                              [test Python bindings])],
-              [enable_python_bindings_tests=yes], [enable_python_bindings_tests=no])
+AM_CONDITIONAL([HAVE_PYTHON], [test "x$have_python" = xyes])
+AM_CONDITIONAL([HAVE_PYTHON_DEV], [test "x$have_python_dev" = xyes])
 
-AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS_TESTS], [test "x${enable_python_bindings_tests:-yes}" = xyes])
+AS_IF([test "x$enable_python_bindings" = xyes || test "x$enable_python_plugins" = xyes], [
+  AS_IF([test "x$have_python_dev" = xno], [
+    AC_MSG_ERROR([Cannot find a suitable python-config. You can override the python-config path with the PYTHON_CONFIG environment variable.])
+  ])
+])
 
-if test "x${enable_python_bindings:-no}" = xno; then
-  if test "x${enable_python_bindings_doc:-yes}" = xyes; then
-    AC_MSG_ERROR([--enable-python-bindings-doc was specified without --enable-python-bindings])
-  fi
+AS_IF([test "x$enable_python_bindings_doc" = xyes],
+  [
+    AM_CHECK_PYTHON_SPHINX([PYTHON])
+    AS_IF([test "x$PYTHON_SPHINX_EXISTS" = xno], [
+      AC_MSG_ERROR([The Sphinx package for Python 3 is required to build the Python bindings documentation])
+    ])
 
-  if test "x${enable_python_bindings_tests:-yes}" = xyes; then
-    AC_MSG_ERROR([--enable-python-bindings-tests was specified without --enable-python-bindings])
-  fi
-fi
+    AS_IF([test "x$enable_python_bindings" != xyes], [
+      AC_MSG_ERROR([The Python bindings are required to build their documentation])
+    ])
+  ]
+)
 
-if test "x${enable_python_bindings_doc:-yes}" = xyes; then
-    AM_CHECK_PYTHON_SPHINX([PYTHON])
-    AS_IF([test "x$PYTHON_SPHINX_EXISTS" = xno],
-      AC_MSG_ERROR([The Sphinx package for Python 3 is required to build Python bindings documentation])
-    )
-fi
+AS_IF([test "x$enable_debug_info" = xyes],
+  [
+    # Check if libelf and libdw are present
+    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.)])
+    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.)])
+    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.)])
+    ELFUTILS_LIBS="-lelf -ldw"
+  ]
+)
+AC_SUBST([ELFUTILS_LIBS])
 
-if test "x${enable_python_bindings_tests:-yes}" = xyes; then
-    AM_CHECK_PYTHON_TAPPY([PYTHON])
-    AS_IF([test "x$PYTHON_TAPPY_EXISTS" = xno],
-        AC_MSG_ERROR([You need the tappy Python project to test the Python bindings (see <https://github.com/python-tap/tappy>)])
+AS_IF([test "x$enable_api_doc" = "xyes"],
+  [
+    DX_DOXYGEN_FEATURE(ON)
+    DX_DOT_FEATURE(OFF)
+    DX_HTML_FEATURE(ON)
+    DX_CHM_FEATURE(OFF)
+    DX_CHI_FEATURE(OFF)
+    DX_MAN_FEATURE(OFF)
+    DX_RTF_FEATURE(OFF)
+    DX_XML_FEATURE(OFF)
+    DX_PDF_FEATURE(OFF)
+    DX_PS_FEATURE(OFF)
+    DX_INIT_DOXYGEN([Babeltrace 2], [$(builddir)/Doxyfile], [output])
+    AS_IF([test -z "$DX_DOXYGEN"],
+         [AC_MSG_ERROR([You need doxygen to enable the API documentation])]
     )
-fi
-
-# Set default enable state for debug info.
-# The _enable_debug_info variable is prepended with an underscore to
-# avoid clashing with the one generated by AC_ARG_ENABLE.
-AS_IF([test "x$DEFAULT_ENABLE_DEBUG_INFO" = xyes], [_enable_debug_info=yes], [_enable_debug_info=no])
+  ]
+)
 
-# Optional debug info feature
-# Do _not_ indent the help string below (appears in the configure --help
-# output).
-AC_ARG_ENABLE([debug-info],
-[AC_HELP_STRING([--enable-debug-info], [enable the debug info feature (default on Linux)])]
-[AC_HELP_STRING([--disable-debug-info], [disable the debug info feature (default on OS X and Solaris)])],
-       [AS_IF([test "x$enableval" = xyes], [_enable_debug_info=yes], [_enable_debug_info=no])], [])
-
-AM_CONDITIONAL([ENABLE_DEBUG_INFO], [test "x$_enable_debug_info" = xyes])
-AS_IF([test "x$_enable_debug_info" = xyes], [
-           # Check if libelf and libdw are present
-           AC_CHECK_LIB([elf], [elf_version], [], [AC_MSG_ERROR(Missing libelf (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
-           AC_CHECK_LIB([dw], [dwarf_begin], [], [AC_MSG_ERROR(Missing libdw (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
-           BT_LIB_ELFUTILS([0], [154], [:], [AC_MSG_ERROR(elfutils >= 0.154 is required to use the debug info feature. You can disable this feature using --disable-debug-info.)])
-            AC_DEFINE([ENABLE_DEBUG_INFO], [1], [Define to 1 if you enable the 'debug info' feature])
-], [])
-
-AC_ARG_VAR([BUILT_IN_PLUGINS], [Statically-link in-tree plug-ins into the babeltrace binary])
-AS_IF([test "x$BUILT_IN_PLUGINS" != x], [
-# Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
-       AS_IF([test "x$enable_static" != "xyes"], [AC_MSG_ERROR(--enable-static must be used to bundle plug-ins in the babeltrace executable)])
-       AS_IF([test "x$enable_shared" = "xyes"], [AC_MSG_ERROR(--disable-shared must be used to bundle plug-ins in the babeltrace executable)])
-       built_in_plugins=yes
-       AC_DEFINE([BT_BUILT_IN_PLUGINS], [1], [Define to 1 to register plug-in attributes in static executable sections])
+have_asciidoc_xmlto=no
+warn_prebuilt_man_pages=no
+
+AC_PATH_PROG([ASCIIDOC], [asciidoc], [no])
+AC_PATH_PROG([XMLTO], [xmlto], [no])
+
+AS_IF([test "x$enable_man_pages" = "xyes"], [
+  AS_IF([test "x$ASCIIDOC" = "xno" || test "x$XMLTO" = "xno"], [
+    AS_IF([test "x$in_git_repo" = "xyes"], [
+      # this is an error because we're in the Git repo, which
+      # means the man pages are not already generated for us,
+      # thus asciixmlto are required because we were asked
+      # to build the man pages
+      AC_MSG_ERROR([
+You need asciidoc and xmlto to build the Babeltrace man pages. Use
+--disable-man-pages to disable building the man pages, in which case
+they will not be installed.
+      ])
+    ], [
+      # only warn here: since we're in the tarball, the man
+      # pages should already be generated at this point, thus
+      # asciidoc/xmlto are not strictly required
+      warn_prebuilt_man_pages=yes
+    ])
+  ], [
+    have_asciidoc_xmlto=yes
+  ])
 ])
-AM_CONDITIONAL([BUILT_IN_PLUGINS], [test "x$built_in_plugins" = "xyes"])
-
-PKG_CHECK_MODULES(GMODULE, [gmodule-2.0 >= 2.0.0])
 
-LIBS="$LIBS $GMODULE_LIBS"
-PACKAGE_CFLAGS="$GMODULE_CFLAGS -Wall -Wformat"
-AC_SUBST(PACKAGE_CFLAGS)
-
-DEFAULT_INCLUDES="-I\$(top_srcdir) -I\$(top_builddir) -I\$(top_builddir)/include -include config.h"
-AC_SUBST(DEFAULT_INCLUDES)
+# export AsciiDoc and xmlto existence
+AM_CONDITIONAL([HAVE_ASCIIDOC_XMLTO], [test "x$have_asciidoc_xmlto" = "xyes"])
+
+# a wonderful hack that seems necessary because $libdir is
+# literally `${exec_prefix}/lib`, and $exec_prefix is set to `NONE`
+# by autoconf when it's not specified by the user
+AS_IF([test "x$exec_prefix" = xNONE], [
+  AS_IF([test "x$prefix" = xNONE], [
+    PREFIX="$ac_default_prefix"
+  ], [
+    PREFIX="$prefix"
+  ])
 
-babeltraceincludedir="${includedir}/babeltrace"
-AC_SUBST(babeltraceincludedir)
+  LIBDIR="$PREFIX/lib"
+], [
+  LIBDIR="$libdir"
+])
 
-babeltracectfincludedir="${includedir}/babeltrace/ctf"
-AC_SUBST(babeltracectfincludedir)
+AC_SUBST(LIBDIR)
+
+# CFLAGS from libraries (the glib ones are needed for the following sizeof
+# test).
+AM_CFLAGS="${PTHREAD_CFLAGS} ${GLIB_CFLAGS}"
+
+# Check that the current size_t matches the size that glib thinks it should
+# be. This catches problems on multi-arch where people try to do a 32-bit
+# build while pointing at 64-bit glib headers. This is a common error because
+# glib.h is not platform specific but it includes glibconfig.h which is and
+# is usually installed in a non-standard path.
+
+# Do this before enabling all the warning flags, as the
+# AC_LANG_PROGRAM-generated program may generate some warning, which makes this
+# test fail unnecessarily.
+
+# Older versions of the pkg-config macros disallows PKG_* in the autoconf
+# output. Specifically allow pkg_config_libdir to be able to print the
+# error message.
+m4_pattern_allow([PKG_CONFIG_LIBDIR])
+
+save_CFLAGS=${CFLAGS}
+CFLAGS="${CFLAGS} ${AM_CFLAGS}"
+AC_COMPILE_IFELSE([
+  AC_LANG_PROGRAM([dnl
+#include <glib.h>
+#include <unistd.h>
+  ], [dnl
+G_STATIC_ASSERT(sizeof(size_t) == GLIB_SIZEOF_SIZE_T);
+  ])
+],[:],[
+  AC_MSG_ERROR([dnl
+sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T. You probably need to set
+PKG_CONFIG_LIBDIR to point to the right pkg-config files for your build
+target.
+  ])
+])
+CFLAGS=${save_CFLAGS}
+
+# Detect C and LD warning flags supported by the compiler.
+AX_COMPILER_FLAGS(
+       [WARN_CFLAGS], dnl CFLAGS variable name
+       [WARN_LDFLAGS], dnl LDFLAGS variable name (unused for now)
+       [], dnl is-release
+       [], dnl Extra base CFLAGS
+       [ dnl Extra "yes" CFLAGS
+               dnl Disable these flags, either because we don't want them
+               dnl or because we want them but are not ready to enable them
+               dnl yet.
+               -Wno-sign-compare dnl
+               -Wno-inline dnl
+               -Wno-declaration-after-statement dnl
+               -Wno-switch-enum dnl
+               -Wno-switch-default dnl
+               -Wno-packed dnl
+               -Wno-pointer-arith dnl
+               -Wno-format-nonliteral dnl
+               -Wno-double-promotion dnl
+               -Wno-cast-align dnl
+               dnl
+               dnl Some versions of SWIG (like 3.0.12) generate code that produces
+               dnl -Wcast-function-type warnings.  This warning is present in gcc >= 8.  This
+               dnl combo happens on RHEL/Centos 8, for example.  Later versions of SWIG (like
+               dnl 4.0.1) have the correct function signatures to not produce this warning.
+               dnl It's simpler to just disable the warning globally.
+               dnl
+               dnl Note that the Debian/Ubuntu SWIG package 3.0.12-2 contains a local patch to
+               dnl fix this (python-fix-function-cast-warnings.patch), so you won't be able to
+               dnl reproduce the warning using that package.
+               dnl
+               dnl Ref: https://github.com/swig/swig/issues/1259
+               -Wno-cast-function-type dnl
+               -Wno-suggest-attribute=format dnl
+       ])
+
+# CFLAGS from AX_COMPILER_FLAGS.
+AM_CFLAGS="${AM_CFLAGS} ${WARN_CFLAGS}"
+
+# The test used in AX_COMPILER_FLAGS, generated using AC_LANG_PROGRAM, is
+# written in such a way that it triggers a -Wold-style-definition warning.  So
+# if the user has -Werror in their CFLAGS, that warning flag will end up
+# disabled, because the test program will not build.
+#
+# Enable it here unconditionally.  It is supported by GCC >= 4.8 and by Clang
+# (it is accepted for compatibility although it has no effect), and there is
+# not reason to not want it.
 
-babeltracectfwriterincludedir="${includedir}/babeltrace/ctf-writer"
-AC_SUBST(babeltracectfwriterincludedir)
+AM_CFLAGS="${AM_CFLAGS} -Wold-style-definition"
 
-babeltracectfirincludedir="${includedir}/babeltrace/ctf-ir"
-AC_SUBST(babeltracectfirincludedir)
+# We want this one to always be an error.
+AM_CFLAGS="${AM_CFLAGS} -Werror=implicit-function-declaration"
 
-babeltracepluginincludedir="${includedir}/babeltrace/plugin"
-AC_SUBST(babeltracepluginincludedir)
+# Done for AM_CFLAGS.
+AC_SUBST(AM_CFLAGS)
 
-babeltracecomponentincludedir="${includedir}/babeltrace/component"
-AC_SUBST(babeltracecomponentincludedir)
+# Set global CPPFLAGS in AM_CPPFLAGS
+AM_CPPFLAGS="-I\$(top_srcdir)/include -I\$(top_builddir)/src -I\$(top_srcdir)/src -include common/config.h"
+AC_SUBST(AM_CPPFLAGS)
 
-babeltracecomponentnotifincludedir="${includedir}/babeltrace/component/notification"
-AC_SUBST(babeltracecomponentnotifincludedir)
+# Add glib to global link libs
+LIBS="$LIBS $GLIB_LIBS"
 
-program_transform_name="s&babeltrace\.bin&babeltrace&;$program_transform_name"
+# Abuse autoconf's AC_ARG_PROGRAM output variable 'program_transform_name'
+# to rename babeltrace2.bin to babeltrace2 at install time.
+program_transform_name="s&babeltrace2\.bin&babeltrace2&;$program_transform_name"
 AC_SUBST(program_transform_name)
 
-# check for Doxygen
-AC_ARG_ENABLE(
-  [api-doc],
-  [AC_HELP_STRING(
-    [--enable-api-doc],
-    [generate and install HTML API documentation]
-  )],
-  [enable_api_doc=$enableval],
-  [enable_api_doc=no]
-)
-AM_CONDITIONAL([ENABLE_API_DOC], [test "x$enable_api_doc" = "xyes"])
-
-AS_IF([test "x$enable_api_doc" = "xyes"], [
-  DX_DOXYGEN_FEATURE(ON)
-  DX_DOT_FEATURE(OFF)
-  DX_HTML_FEATURE(ON)
-  DX_CHM_FEATURE(OFF)
-  DX_CHI_FEATURE(OFF)
-  DX_MAN_FEATURE(OFF)
-  DX_RTF_FEATURE(OFF)
-  DX_XML_FEATURE(OFF)
-  DX_PDF_FEATURE(OFF)
-  DX_PS_FEATURE(OFF)
-  DX_INIT_DOXYGEN([Babeltrace], [$(srcdir)/Doxyfile], [output])
-])
-
 AC_CONFIG_FILES([
-       Makefile
-       types/Makefile
-       common/Makefile
-       compat/Makefile
-       formats/Makefile
-       formats/ctf/Makefile
-       formats/ctf/types/Makefile
-       formats/ctf-text/Makefile
-       formats/ctf-text/types/Makefile
-       formats/ctf-metadata/Makefile
-       formats/bt-dummy/Makefile
-       formats/lttng-live/Makefile
-       formats/ctf/metadata/Makefile
-       formats/ctf/writer/Makefile
-       formats/ctf/ir/Makefile
-       converter/Makefile
-       doc/Makefile
-        doc/api/Makefile
-        doc/api/Doxyfile
+       doc/api/Makefile
+       doc/api/libbabeltrace2/Doxyfile
+       doc/api/libbabeltrace2/Makefile
        doc/bindings/Makefile
        doc/bindings/python/Makefile
-       doc/images/Makefile
-       lib/Makefile
-       lib/prio_heap/Makefile
-       lib/plugin/Makefile
-        lib/component/Makefile
-       lib/component/notification/Makefile
+       doc/contributing-images/Makefile
+       doc/Makefile
+       doc/man/asciidoc-attrs.conf
+       doc/man/Makefile
        include/Makefile
-       bindings/Makefile
-       bindings/python/Makefile
-       bindings/python/babeltrace/Makefile
-       bindings/python/bt2/Makefile
-       bindings/python/bt2/__init__.py
-       tests/Makefile
-       tests/bin/Makefile
-       tests/bin/intersection/Makefile
+       Makefile
+       src/argpar/Makefile
+       src/autodisc/Makefile
+       src/babeltrace2-ctf-writer.pc
+       src/babeltrace2.pc
+       src/bindings/Makefile
+       src/bindings/python/bt2/bt2/version.py
+       src/bindings/python/bt2/Makefile
+       src/bindings/python/bt2/setup.py
+       src/bindings/python/Makefile
+       src/cli/Makefile
+       src/common/Makefile
+       src/compat/Makefile
+       src/ctfser/Makefile
+       src/ctf-writer/Makefile
+       src/fd-cache/Makefile
+       src/lib/graph/Makefile
+       src/lib/graph/message/Makefile
+       src/lib/Makefile
+       src/lib/plugin/Makefile
+       src/lib/prio-heap/Makefile
+       src/lib/trace-ir/Makefile
+       src/logging/Makefile
+       src/Makefile
+       src/plugins/common/Makefile
+       src/plugins/common/muxing/Makefile
+       src/plugins/common/param-validation/Makefile
+       src/plugins/ctf/common/bfcr/Makefile
+       src/plugins/ctf/common/Makefile
+       src/plugins/ctf/common/metadata/Makefile
+       src/plugins/ctf/common/msg-iter/Makefile
+       src/plugins/ctf/fs-sink/Makefile
+       src/plugins/ctf/fs-src/Makefile
+       src/plugins/ctf/lttng-live/Makefile
+       src/plugins/ctf/Makefile
+       src/plugins/lttng-utils/debug-info/Makefile
+       src/plugins/lttng-utils/Makefile
+       src/plugins/Makefile
+       src/plugins/text/dmesg/Makefile
+       src/plugins/text/Makefile
+       src/plugins/text/pretty/Makefile
+       src/plugins/text/details/Makefile
+       src/plugins/utils/counter/Makefile
+       src/plugins/utils/dummy/Makefile
+       src/plugins/utils/Makefile
+       src/plugins/utils/muxer/Makefile
+       src/plugins/utils/trimmer/Makefile
+       src/py-common/Makefile
+       src/python-plugin-provider/Makefile
+       src/param-parse/Makefile
+       src/string-format/Makefile
+       tests/bitfield/Makefile
+       tests/ctf-writer/Makefile
        tests/lib/Makefile
-       tests/lib/writer/Makefile
        tests/lib/test-plugin-plugins/Makefile
+       tests/Makefile
+       tests/param-validation/Makefile
+       tests/plugins/Makefile
+       tests/plugins/src.ctf.fs/Makefile
+       tests/plugins/src.ctf.fs/succeed/Makefile
+       tests/plugins/sink.ctf.fs/Makefile
+       tests/plugins/sink.ctf.fs/succeed/Makefile
+       tests/plugins/flt.lttng-utils.debug-info/Makefile
+       tests/plugins/flt.utils.muxer/Makefile
+       tests/plugins/flt.utils.muxer/succeed/Makefile
+       tests/plugins/flt.utils.trimmer/Makefile
        tests/utils/Makefile
        tests/utils/tap/Makefile
-       tests/bindings/Makefile
-       tests/bindings/python/Makefile
-       tests/bindings/python/bt2/Makefile
-       extras/Makefile
-       extras/valgrind/Makefile
-       plugins/Makefile
-       plugins/ctf/Makefile
-       plugins/ctf/common/Makefile
-       plugins/ctf/common/btr/Makefile
-       plugins/ctf/common/metadata/Makefile
-       plugins/ctf/common/notif-iter/Makefile
-       plugins/ctf/fs/Makefile
-       plugins/ctf/lttng-live/Makefile
-       plugins/muxer/Makefile
-       plugins/text/Makefile
-       plugins/trimmer/Makefile
-       plugins/writer/Makefile
-       babeltrace.pc
-       babeltrace-ctf.pc
-])
-
-#AC_CONFIG_FILES([converter/babeltrace], [chmod +x converter/babeltrace])
-AC_CONFIG_FILES([tests/lib/test_ctf_writer_complete], [chmod +x tests/lib/test_ctf_writer_complete])
-AC_CONFIG_FILES([tests/lib/test_plugin_complete], [chmod +x tests/lib/test_plugin_complete])
-AC_CONFIG_FILES([tests/lib/test_seek_big_trace], [chmod +x tests/lib/test_seek_big_trace])
-AC_CONFIG_FILES([tests/lib/test_seek_empty_packet], [chmod +x tests/lib/test_seek_empty_packet])
-AC_CONFIG_FILES([tests/lib/test_dwarf_complete], [chmod +x tests/lib/test_dwarf_complete])
-AC_CONFIG_FILES([tests/lib/test_bin_info_complete], [chmod +x tests/lib/test_bin_info_complete])
-
-AC_CONFIG_FILES([tests/bin/test_trace_read], [chmod +x tests/bin/test_trace_read])
-AC_CONFIG_FILES([tests/bin/intersection/test_intersection], [chmod +x tests/bin/intersection/test_intersection])
-AC_CONFIG_FILES([tests/bin/intersection/bt_python_helper.py])
-AC_CONFIG_FILES([tests/lib/writer/bt_python_helper.py])
-AC_CONFIG_FILES([tests/bin/test_packet_seq_num], [chmod +x tests/bin/test_packet_seq_num])
-AC_CONFIG_FILES([tests/bin/test_formats], [chmod +x tests/bin/test_formats])
-
-AS_IF([test "x$enable_python" = "xyes"], [
-       AC_CONFIG_FILES(
-               [tests/bindings/python/bt2/testall.sh],
-               [chmod +x tests/bindings/python/bt2/testall.sh]
-       )
 ])
 
 AC_OUTPUT
@@ -531,10 +853,26 @@ PPRINT_SET_INDENT(1)
 PPRINT_SET_TS(38)
 
 AS_ECHO
-AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION$PPRINT_COLOR_RST")
+
+AS_IF([test -n "bt_version_name"], [
+       AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION \"bt_version_name\"$PPRINT_COLOR_RST")
+], [
+       AS_ECHO("${PPRINT_COLOR_BLDBLU}Babeltrace $PACKAGE_VERSION")
+])
+
 AS_ECHO
 
-PPRINT_SUBTITLE([Features])
+AS_IF([test -n "$bt_version_description"], [
+       AS_IF([test -n "$report_fold"], [
+               AS_ECHO("`AS_ECHO("$bt_version_description") | $report_fold -s`")
+       ], [
+               AS_ECHO("$bt_version_description")
+       ])
+
+       AS_ECHO
+])
+
+PPRINT_SUBTITLE([System])
 
 # Target architecture we're building for.
 target_arch=$host_cpu
@@ -547,41 +885,96 @@ for f in $CFLAGS; do
        fi
 done
 ]
-PPRINT_PROP_STRING([Target architecture], $target_arch)
 
-# API doc
-test "x$enable_api_doc" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([HTML API documentation], $value)
+PPRINT_PROP_STRING([Target architecture], $target_arch)
 
-# python bindings enabled/disabled
+AS_ECHO
+PPRINT_SUBTITLE([Python 3 language support])
+test "x$have_python" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Have Python interpreter], $value)
+test "x$have_python_dev" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Have Python development libraries], $value)
 test "x$enable_python_bindings" = "xyes" && value=1 || value=0
 PPRINT_PROP_BOOL([Python bindings], $value)
+test "x$enable_python_plugins" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Python plugin support], $value)
+AS_IF([test "x$have_python" = "xyes"], [
+  PPRINT_PROP_STRING([Python interpreter path], [$PYTHON])
+])
+AS_IF([test "x$have_python_dev" = "xyes"], [
+  PPRINT_PROP_STRING([python-config path], [$PYTHON_CONFIG])
+  PPRINT_PROP_STRING([Python include paths], [$PYTHON_INCLUDE])
+  PPRINT_PROP_STRING([Python linker flags], [$PYTHON_LDFLAGS])
+])
+AS_IF([test "x$enable_python_bindings" = "xyes"], [
+  PPRINT_PROP_STRING([SWIG executable], [$SWIG])
+  PPRINT_PROP_STRING([SWIG library], [$SWIG_LIB])
+])
 
-# python bindings doc enabled/disabled
-test "x$enable_python_bindings_doc" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([Python bindings doc], $value)
+AS_ECHO
+PPRINT_SUBTITLE([Plugins])
+PPRINT_PROP_BOOL(['ctf' plugin], 1)
+test "x$enable_debug_info" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL(['lttng-utils' plugin], $value)
+PPRINT_PROP_BOOL(['text' plugin], 1)
+PPRINT_PROP_BOOL(['utils' plugin], 1)
 
-# python bindings tests enabled/disabled
-test "x$enable_python_bindings_tests" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([Python bindings tests], $value)
+AS_ECHO
+PPRINT_SUBTITLE([Built-in features])
+test "x$enable_built_in_plugins" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Built-in plugins], $value)
+test "x$enable_built_in_python_plugin_support" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Built-in Python plugin support], $value)
 
-# python plugins enabled/disabled
-test "x$enable_python_plugins" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([Python plugin support], $value)
+AS_ECHO
+PPRINT_SUBTITLE([Documentation])
+
+# man pages build enabled/disabled
+m4_pushdef([build_man_pages_msg], [Build and install man pages])
+
+AS_IF([test "x$enable_man_pages" != "xno"], [
+  AS_IF([test "x$in_git_repo" = "xyes"], [
+    PPRINT_PROP_BOOL([build_man_pages_msg], 1)
+  ], [
+    AS_IF([test "x$have_asciidoc_xmlto" = "xyes"], [
+      PPRINT_PROP_BOOL([build_man_pages_msg], 1)
+    ], [
+      PPRINT_PROP_STRING([build_man_pages_msg],
+        [${PPRINT_COLOR_BLDGRN}yes (already built)],
+        $PPRINT_COLOR_SUBTITLE)
+    ])
+  ])
+], [
+  PPRINT_PROP_BOOL([build_man_pages_msg], 0)
+])
+
+m4_popdef([build_man_pages_msg])
+
+test "x$enable_api_doc" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([HTML API documentation], $value)
+test "x$enable_python_bindings_doc" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Python bindings documentation], $value)
 
-# debug info enabled/disabled
-test "x$_enable_debug_info" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([Debug information output], $value)
+AS_ECHO
+PPRINT_SUBTITLE([Logging])
+PPRINT_PROP_STRING([Minimal log level], $BABELTRACE_MINIMAL_LOG_LEVEL)
 
-# built-in plug-ins enabled/disabled
-test "x$built_in_plugins" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([Built-in plug-ins], $value)
+AS_ECHO
+PPRINT_SUBTITLE([Special build modes])
+PPRINT_PROP_BOOL([Debug mode], $BABELTRACE_DEBUG_MODE)
+PPRINT_PROP_BOOL([Developer mode], $BABELTRACE_DEV_MODE)
 
 report_bindir="`eval eval echo $bindir`"
 report_libdir="`eval eval echo $libdir`"
+report_sysconfdif="`eval eval echo $sysconfdir`"
+report_pluginsdir="`eval eval eval echo $BABELTRACE_PLUGINS_DIR`"
+report_pluginprovidersdir="`eval eval eval echo $BABELTRACE_PLUGIN_PROVIDERS_DIR`"
 
 # Print the bindir and libdir this `make install' will install into.
 AS_ECHO
 PPRINT_SUBTITLE([Install directories])
 PPRINT_PROP_STRING([Binaries], [$report_bindir])
 PPRINT_PROP_STRING([Libraries], [$report_libdir])
+PPRINT_PROP_STRING([Plugins], [$report_pluginsdir])
+PPRINT_PROP_STRING([Plugin providers], [$report_pluginprovidersdir])
+PPRINT_PROP_STRING([Configuration], [$report_sysconfdif])
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