dnl -*- Autoconf -*-

dnl Process this file with autoconf to produce a configure script.

dnl Version infos

m4_define([V_MAJOR], [2])

m4_define([V_MINOR], [8])

m4_define([V_PATCH], [1])

dnl m4_define([V_EXTRA], [])

m4_define([V_STRING], [V_MAJOR.V_MINOR.V_PATCH])

m4_ifdef([V_EXTRA], [m4_append([V_STRING], [-V_EXTRA])])

m4_define([V_NAME], [[Isseki Nicho]])

m4_define([V_DESC], [[The result of a collaboration between "Dieu du Ciel!" and Nagano-based "Shiga Kogen", Isseki Nicho is a strong Imperial Dark Saison offering a rich roasted malt flavor combined with a complex fruity finish typical of Saison yeasts.]])

AC_INIT([lttng-ust], V_STRING, [mathieu dot desnoyers at efficios dot com])

# Following the numbering scheme proposed by libtool for the library version

# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html

# This is the library version of liblttng-ust.

AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [0:0:0])

# note: remember to update tracepoint.h dlopen() to match this version

# number. TODO: eventually automate by exporting the major number.

# This is the library version of liblttng-ust-ctl, used internally by

# liblttng-ust, lttng-sessiond, and lttng-consumerd.

AC_SUBST([LTTNG_UST_CTL_LIBRARY_VERSION], [2:0:0])

AC_CONFIG_AUX_DIR([config])

AC_CANONICAL_TARGET

AC_CANONICAL_HOST

AC_CONFIG_MACRO_DIR([config])

AM_INIT_AUTOMAKE([1.9 foreign dist-bzip2 no-dist-gzip tar-ustar])

AM_MAINTAINER_MODE([enable])

m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])

AC_REQUIRE_AUX_FILE([tap-driver.sh])

# Configuration options, which will be installed in the config.h

AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])

AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])

AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])

AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.h])

dnl Substitute minor/major/patchlevel version numbers

AC_SUBST([MAJOR_VERSION], [V_MAJOR])

AC_SUBST([MINOR_VERSION], [V_MINOR])

AC_SUBST([PATCHLEVEL_VERSION], [V_PATCH])

AC_PROG_SED

AC_PROG_GREP

AC_PROG_LN_S

# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.

AC_ARG_ENABLE([libtool-linkdep-fixup], [

	AS_HELP_STRING([--disable-libtool-linkdep-fixup], [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)])

], [

	libtool_fixup=$enableval

], [

	libtool_fixup=yes

])

AS_IF([test "x$libtool_fixup" = "xyes"], [

	libtool_m4="$srcdir/config/libtool.m4"

	libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"

	AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])

	libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)

	AS_IF([test $libtool_flag_pattern_count -ne 0], [

	AC_MSG_RESULT([$libtool_flag_pattern_count])

	AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])

		sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4

	], [

		AC_MSG_RESULT([none])

	])

])

AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])

# Checks for programs.

AC_PROG_CC

AC_PROG_CXX

AC_PROG_MAKE_SET

LT_INIT

# rw_PROG_CXX_WORKS

# Check whether the C++ compiler works.

AC_CACHE_CHECK([whether the C++ compiler works], [rw_cv_prog_cxx_works], [

	AC_LANG_PUSH([C++])

	AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [

		check_cxx_designated_initializers=yes

	], [

		rw_cv_prog_cxx_works=no

	])

	AS_IF([test "x$check_cxx_designated_initializers" = "xyes"], [

		AC_COMPILE_IFELSE([AC_LANG_SOURCE([[

			struct foo { int a; int b; };

			void fct(void)

			{

				struct foo f = { .a = 0, .b = 1 };

			}

		]])], [

			rw_cv_prog_cxx_works=yes

		], [

			rw_cv_prog_cxx_works=no

		])

	])

	AC_LANG_POP([C++])

])

AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])

# Check if the compiler support weak symbols

AX_SYS_WEAK_ALIAS

AS_IF([test "x${ax_cv_sys_weak_alias}" = "xno"], [

	AC_MSG_ERROR([Your platform doesn't support weak symbols.])

])

# Checks for libraries.

AC_CHECK_LIB([dl], [dlopen], [

	have_libdl=yes

], [

	#libdl not found, check for dlopen in libc.

	AC_CHECK_LIB([c], [dlopen], [

		have_libc_dl=yes

	], [

		AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])

	])

])

AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])

AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])

AC_CHECK_LIB([pthread], [pthread_create])

# Check for dlfcn.h

AC_CHECK_HEADER([dlfcn.h])

AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"], [

	AC_CHECK_DECLS([RTLD_DI_LINKMAP], [], [], [

		#define _GNU_SOURCE /* Required on Linux to get GNU extensions */

		#include <dlfcn.h>

	])

], [

	ac_cv_have_decl_RTLD_DI_LINKMAP="no"

])

AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])

# Checks for header files.

dnl AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])

# Checks for typedefs, structures, and compiler characteristics.

AC_C_INLINE

dnl AC_TYPE_INT16_T

dnl AC_TYPE_INT32_T

dnl AC_TYPE_INT64_T

dnl AC_TYPE_INT8_T

dnl AC_TYPE_PID_T

dnl AC_TYPE_SIZE_T

dnl AC_TYPE_SSIZE_T

dnl AC_TYPE_UINT16_T

dnl AC_TYPE_UINT32_T

dnl AC_TYPE_UINT64_T

dnl AC_TYPE_UINT8_T

dnl AC_CHECK_TYPES([ptrdiff_t])

# Checks for library functions.

AC_FUNC_MALLOC

AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])

CFLAGS="-Wall $CFLAGS"

# URCU

# urcu - check if we just find the headers it out of the box.

AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.

This error can also occur when the liburcu package's configure script has not been run.])])

# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation

# Part of Userspace RCU library 0.7.2 or better.

AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find

liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])

AC_MSG_CHECKING([caa_likely()])

AC_COMPILE_IFELSE([AC_LANG_SOURCE([[

	#include <urcu/compiler.h>

	void fct(void)

	{

		if (caa_likely(1)) {

		}

	}

]])], [

	AC_MSG_RESULT([yes])

], [

	AC_MSG_RESULT([no])

	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])

])

# urcu - check that URCU lib is available to compilation

AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])

# urcu - check that URCU lib is at least version 0.6

AC_CHECK_LIB([urcu-bp], [call_rcu_bp], [], [AC_MSG_ERROR([liburcu 0.6 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])])

# optional linux/perf_event.h

AC_CHECK_HEADERS([linux/perf_event.h], [have_perf_event=yes], [])

# Perf event counters are only supported on x86 so far.

AC_MSG_CHECKING([UST support for architecture perf event counters])

AS_CASE([$host_cpu],

	[i[[3456]]86], [UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes],

	[x86_64], [UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes],

	[amd64], [UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes],

	[UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=no])

AC_MSG_RESULT([$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS])

AM_CONDITIONAL([HAVE_PERF_EVENT], [test "x$have_perf_event" = "xyes" && test "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"])

AS_IF([test "x$have_perf_event" = "xyes" && test "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"], [

	AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])

])

AC_MSG_CHECKING([host system alignment requirements])

AS_CASE([$host_cpu],

	[i[[3456]]86], [],

	[x86_64], [],

	[amd64], [],

	[powerpc], [],

	[ppc64], [],

	[ppc64le], [],

	[powerpc64], [],

	[powerpc64le], [],

	[s390], [NO_UNALIGNED_ACCESS=1],

	[s390x], [NO_UNALIGNED_ACCESS=1],

	[arm*], [NO_UNALIGNED_ACCESS=1],

	[aarch64*], [NO_UNALIGNED_ACCESS=1],

	[mips*], [NO_UNALIGNED_ACCESS=1],

	[tile*], [NO_UNALIGNED_ACCESS=1],

	[

		UNSUPPORTED_ARCH=1

		NO_UNALIGNED_ACCESS=1

	])

AC_MSG_RESULT([$host_cpu])

AS_IF([test "x$NO_UNALIGNED_ACCESS" = "x"], [

	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])

])

# Check for JNI header files if requested

AC_ARG_ENABLE([jni-interface], [

	AS_HELP_STRING([--enable-jni-interface], [build JNI interface between C and Java. Needs Java include files [default=no]])

], [

	jni_interface=$enableval

], [

	jni_interface=no

])

AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])

AC_ARG_ENABLE([java-agent-jul], [

	AS_HELP_STRING([--enable-java-agent-jul], [build the LTTng UST Java agent with JUL support [default=no]])

], [

	java_agent_jul=$enableval

], [

	java_agent_jul=no

])

AC_ARG_ENABLE([java-agent-log4j], [

	AS_HELP_STRING([--enable-java-agent-log4j], [build the LTTng UST Java agent with Log4j support [default=no]])

], [

	java_agent_log4j=$enableval

], [

	java_agent_log4j=no

])

AC_ARG_ENABLE([java-agent-all], [

	AS_HELP_STRING([--enable-java-agent-all], [build the LTTng UST Java agent with all supported backends [default=no]])

], [

	java_agent_jul=$enableval

	java_agent_log4j=$enableval

], [:])

AM_CONDITIONAL([BUILD_JAVA_AGENT], [test "x$java_agent_jul" = "xyes" || test "x$java_agent_log4j" = "xyes"])

AM_CONDITIONAL([BUILD_JAVA_AGENT_WITH_JUL], [test "x$java_agent_jul" = "xyes"])

AM_CONDITIONAL([BUILD_JAVA_AGENT_WITH_LOG4J], [test "x$java_agent_log4j" = "xyes"])

AS_IF([test "x$jni_interface" = "xyes" || test "x$java_agent_jul" = "xyes" || test "x$java_agent_log4j" = "xyes"], [

	AX_JAVA_OPTIONS

	AX_PROG_JAVAC

	AX_PROG_JAVA

	AX_PROG_JAR

	AX_JNI_INCLUDE_DIR

	for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS

	do

		CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"

	done

	AX_PROG_JAVAH

])

AS_IF([test "x$java_agent_log4j" = "xyes"], [

	AX_CHECK_CLASSPATH

	AX_CHECK_CLASS([org.apache.log4j.Logger])

	AS_IF([test "x$ac_cv_class_org_apache_log4j_Logger" = "xno"], [

		AC_MSG_ERROR([The UST Java agent support for log4j was requested but the Log4j classes were not found. Please specify the location of the Log4j jar via the Java CLASSPATH e.g: export CLASSPATH="/path/to/log4j.jar"])

	])

])

# Option to build the python agent

AC_ARG_ENABLE([python-agent], [

	AS_HELP_STRING([--enable-python-agent], [build the LTTng UST Python agent [default=no]])

], [

	python_agent=$enableval

], [:])

AM_CONDITIONAL([BUILD_PYTHON_AGENT], [test "x$python_agent" = "xyes"])

AS_IF([test "x$python_agent" = "xyes"], [

	AM_PATH_PYTHON([2.7])

])

# sdt.h integration

AC_ARG_WITH([sdt], [

	AS_HELP_STRING([--with-sdt], [provide SystemTap integration via sdt.h [default=no]])

], [

	with_sdt=$withval

], [

	with_sdt="no"

])

AS_IF([test "x$with_sdt" = "xyes"], [

	AC_MSG_CHECKING([STAP_PROBEV()])

	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[

		#define SDT_USE_VARIADIC

		#include <sys/sdt.h>

		void fct(void)

		{

			STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);

		}

	]])], [

		AC_MSG_RESULT([yes])

		AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])

	], [

		AC_MSG_RESULT([no])

		AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. Make sure it is installed, and up to date, or use CPPFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])

	])

])

AC_MSG_CHECKING([whether shared libraries are enabled])

AS_IF([test "x$enable_shared" = "xyes"], [

	AC_MSG_RESULT([yes])

], [

	AC_MSG_RESULT([no])

	AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])

])

AC_ARG_WITH([lttng-system-rundir], [

	AS_HELP_STRING([--with-lttng-system-rundir], [Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),

], [

	lttng_system_rundir="$withval"

], [

	lttng_system_rundir="/var/run/lttng"

])

AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],

		[LTTng system runtime directory])

AC_CHECK_PROG([BUILD_GEN_TP_EXAMPLES], [python], ["yes"])

AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test "x$BUILD_GEN_TP_EXAMPLES" = "xyes"])

# 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"])

# Enable building man pages (user's intention).

AC_ARG_ENABLE(

	man-pages,

	AS_HELP_STRING(

		[--disable-man-pages],

		[Do not build and install man pages (already built in a distributed tarball)]

	),

	[man_pages_opt=$enableval],

	[man_pages_opt=yes]

)

# Check for asciidoc and xmlto if we enabled building the man pages.

have_asciidoc_xmlto=no

AS_IF([test "x$man_pages_opt" = "xyes"], [

	AC_PATH_PROG([ASCIIDOC], [asciidoc], [no])

	AC_PATH_PROG([XMLTO], [xmlto], [no])

	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 asciidoc/xmlto are required because we were asked

			# to build the man pages.

			AC_MSG_ERROR([

Both asciidoc and xmlto are needed to build the LTTng-UST 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.

			AC_MSG_WARN([

Both asciidoc and xmlto are needed to build the LTTng-UST man pages.

Note that the man pages are already built in this distribution tarball,

so asciidoc and xmlto are only needed if you intend to modify their

sources. Use --disable-man-pages to completely disable building

and installing the man pages.

			])

		])

	], [

		have_asciidoc_xmlto=yes

	])

])

# Export man page build condition: build the man pages if the user

# asked for it, and if the tools are available.

AM_CONDITIONAL([MAN_PAGES_OPT], [test "x$man_pages_opt" != "xno"])

AM_CONDITIONAL([HAVE_ASCIIDOC_XMLTO], [test "x$have_asciidoc_xmlto" = "xyes"])

# Default values

AC_DEFUN([_AC_DEFINE_AND_SUBST], [

	AC_DEFINE_UNQUOTED([CONFIG_$1], [$2], [$1])

	$1="$2"

	AC_SUBST([$1])

])

_AC_DEFINE_AND_SUBST([LTTNG_UST_DEFAULT_CONSTRUCTOR_TIMEOUT_MS], [3000])

AC_CONFIG_FILES([

	Makefile

	doc/Makefile

	doc/examples/Makefile

	doc/man/Makefile

	include/Makefile

	include/lttng/ust-version.h

	snprintf/Makefile

	libringbuffer/Makefile

	liblttng-ust-comm/Makefile

	liblttng-ust/Makefile

	liblttng-ust-ctl/Makefile

	liblttng-ust-fork/Makefile

	liblttng-ust-dl/Makefile

	liblttng-ust-java/Makefile

	liblttng-ust-java-agent/Makefile

	liblttng-ust-java-agent/java/Makefile

	liblttng-ust-java-agent/java/lttng-ust-agent-all/Makefile

	liblttng-ust-java-agent/java/lttng-ust-agent-common/Makefile

	liblttng-ust-java-agent/java/lttng-ust-agent-jul/Makefile

	liblttng-ust-java-agent/java/lttng-ust-agent-log4j/Makefile

	liblttng-ust-java-agent/jni/Makefile

	liblttng-ust-java-agent/jni/common/Makefile

	liblttng-ust-java-agent/jni/jul/Makefile

	liblttng-ust-java-agent/jni/log4j/Makefile

	liblttng-ust-libc-wrapper/Makefile

	liblttng-ust-cyg-profile/Makefile

	liblttng-ust-python-agent/Makefile

	python-lttngust/Makefile

	python-lttngust/setup.py

	python-lttngust/lttngust/__init__.py

	tools/Makefile

	tests/Makefile

	tests/ctf-types/Makefile

	tests/hello/Makefile

	tests/hello.cxx/Makefile

	tests/same_line_tracepoint/Makefile

	tests/snprintf/Makefile

	tests/ust-elf/Makefile

	tests/benchmark/Makefile

	tests/utils/Makefile

	tests/test-app-ctx/Makefile

	tests/gcc-weak-hidden/Makefile

	lttng-ust.pc

])

# Create link for python agent for the VPATH guru.

AC_CONFIG_LINKS([

	python-lttngust/lttngust/agent.py:python-lttngust/lttngust/agent.py

	python-lttngust/lttngust/cmd.py:python-lttngust/lttngust/cmd.py

	python-lttngust/lttngust/debug.py:python-lttngust/lttngust/debug.py

	python-lttngust/lttngust/loghandler.py:python-lttngust/lttngust/loghandler.py

])

AC_OUTPUT

AS_ECHO

AS_ECHO(["m4_bpatsubst(V_NAME, ["], [\\"])"])

AS_ECHO

AS_ECHO(["m4_bpatsubst(V_DESC, ["], [\\"])"])

# Report on the configuration options

AS_ECHO

AS_ECHO(["LTTng-UST will be built with the following options:"])

AS_ECHO

AS_ECHO_N(["Java agent (JUL support): "])

AS_IF([test "x$java_agent_jul" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])

AS_ECHO_N(["Java agent (Log4j support): "])

AS_IF([test "x$java_agent_log4j" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])

AS_ECHO_N(["JNI interface (JNI): "])

AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])

AS_ECHO_N(["Python ($PYTHON) agent: "])

AS_IF([test "x$python_agent" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])

AS_ECHO_N(["sdt.h integration: "])

AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO(["Enabled"])], [AS_ECHO(["Disabled"])])

AS_ECHO(["Architecture: $host_cpu"])

AS_ECHO_N(["Efficient unaligned memory access: "])

AS_IF([test "x$NO_UNALIGNED_ACCESS" != "x1"], [AS_ECHO(["yes"])], [AS_IF([test "x$UNSUPPORTED_ARCH" != "x1"], [AS_ECHO(["no"])], [AS_ECHO(["unknown"])])])

AS_IF([test "x$UNSUPPORTED_ARCH" = "x1"], [AC_MSG_WARN([Your architecture ($host_cpu) is unsupported, using safe default of no unaligned access])])

AS_ECHO

AS_ECHO(["Type 'make' to compile."])