[lttng-ust.git] / configure.ac

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_INIT([lttng-ust],[2.5.0-rc2],[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([foreign dist-bzip2 no-dist-gzip])
AM_MAINTAINER_MODE([enable])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])

# 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])

# Compute minor/major/patchlevel version numbers
AC_PROG_SED
major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
AC_SUBST([MAJOR_VERSION], [$major_version])
AC_SUBST([MINOR_VERSION], [$minor_version])
AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])

version_name="Fumisterie"
version_description="The Fumisterie is a beer whose style is at the confluence of English and German ales. On the palate, it is full-bodied, malty and slightly caramelized. The organic hemp seeds incorporated during the brewing gives it a unique and original taste. The hop flavour comes through delicately in the after taste."

AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])

AC_PROG_GREP
# 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])
		if test "$check_cxx_designated_initializers" = "yes"; then
			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
			])
		fi
		AC_LANG_POP([C++])])

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

## 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.
#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
#AC_TYPE_INT16_T
#AC_TYPE_INT32_T
#AC_TYPE_INT64_T
#AC_TYPE_INT8_T
#AC_TYPE_PID_T
#AC_TYPE_SIZE_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])

# 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])
case $host_cpu in
changequote(,)dnl
	i[3456]86)
changequote([,])dnl
	UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	x86_64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	amd64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	*) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=no;;
esac
AC_MSG_RESULT([$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS])

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

if test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"; then
AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])
fi

AC_MSG_CHECKING([host system alignment requirements])
case $host_cpu in
changequote(,)dnl
	i[3456]86)
changequote([,])dnl
	  ;;
	x86_64) ;;
	amd64) ;;
	powerpc) ;;
	ppc64) ;;
	ppc64le) ;;
	powerpc64) ;;
	powerpc64le) ;;
	s390) NO_UNALIGNED_ACCESS=1 ;;
	s390x) NO_UNALIGNED_ACCESS=1 ;;
        arm*) NO_UNALIGNED_ACCESS=1 ;;
	mips*) NO_UNALIGNED_ACCESS=1 ;;
	tile*) NO_UNALIGNED_ACCESS=1 ;;
	*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
esac
AC_MSG_RESULT([$host_cpu])

if test x$NO_UNALIGNED_ACCESS = x ; then
AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
fi

# Set compile flags to java include files if given
AC_ARG_WITH([java-jdk],
	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	[JAVA_JDK=$withval],
	[JAVA_JDK=""]
)
AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
AC_SUBST([JAVA_JDK])

AS_IF([test $JAVA_JDK],[
	AS_IF([test -d $JAVA_JDK],[
                AC_MSG_RESULT([using Java includes in $JAVA_SDK])
                SUBDIRS=`find $JAVA_JDK/include -type d`
		CPPFLAGS+=" "
                CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
		CPPFLAGS+=" "
        ],[
                AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
        ])
])

# Check for JNI header files if requested
AC_ARG_WITH([jni-interface],
	[AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
	[jni_interface=$withval],
	[jni_interface=no]
)

AS_IF([test "x$jni_interface" = "xyes"],[
        AC_CHECK_HEADERS([jni.h],[],[
        AC_MSG_ERROR([missing jni.h
Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
	])
])
AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])

# 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])

lttnglibjavadir="${libdir}/lttng/java"
AC_SUBST(lttnglibjavadir)

AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])

AC_CONFIG_FILES([
	Makefile
	doc/Makefile
	doc/examples/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-jul/Makefile
	liblttng-ust-libc-wrapper/Makefile
	liblttng-ust-cyg-profile/Makefile
	tools/Makefile
	tests/Makefile
	tests/hello/Makefile
	tests/hello.cxx/Makefile
	tests/same_line_tracepoint/Makefile
	tests/snprintf/Makefile
	tests/benchmark/Makefile
	tests/utils/Makefile
	tests/java-jul/Makefile
	lttng-ust.pc
])

AC_OUTPUT

AS_ECHO()
AS_ECHO("Version name: $version_name")
AS_ECHO("$version_description")

# Report on the configuration options
AS_ECHO()
AS_ECHO("LTTng-UST will be built with the following options:")

AS_ECHO()
AS_ECHO_N("Java support (JNI): ")
AS_IF([test "x$jni_interface" = "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()
AS_ECHO("Type 'make' to compile.")
Commit	Line	Data
	1	# -- Autoconf --
	2	# Process this file with autoconf to produce a configure script.
	3
	4	AC_INIT([lttng-ust],[2.5.0-rc2],[mathieu dot desnoyers at efficios dot com])
	5
	6	# Following the numbering scheme proposed by libtool for the library version
	7	# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
	8	# This is the library version of liblttng-ust.
	9	AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [0:0:0])
	10	# note: remember to update tracepoint.h dlopen() to match this version
	11	# number. TODO: eventually automate by exporting the major number.
	12
	13	# This is the library version of liblttng-ust-ctl, used internally by
	14	# liblttng-ust, lttng-sessiond, and lttng-consumerd.
	15	AC_SUBST([LTTNG_UST_CTL_LIBRARY_VERSION], [2:0:0])
	16
	17	AC_CONFIG_AUX_DIR([config])
	18	AC_CANONICAL_TARGET
	19	AC_CANONICAL_HOST
	20	AC_CONFIG_MACRO_DIR([config])
	21	AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
	22	AM_MAINTAINER_MODE([enable])
	23	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
	24	AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
	25
	26	# Configuration options, which will be installed in the config.h
	27	AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
	28	AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
	29	AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
	30	AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.h])
	31
	32	# Compute minor/major/patchlevel version numbers
	33	AC_PROG_SED
	34	major_version=$(echo AC_PACKAGE_VERSION \| sed 's/^\([[0-9]]\)\.[[0-9]]\.[[0-9]].$/\1/')
	35	minor_version=$(echo AC_PACKAGE_VERSION \| sed 's/^[[0-9]]\.\([[0-9]]\)\.[[0-9]].$/\1/')
	36	patchlevel_version=$(echo AC_PACKAGE_VERSION \| sed 's/^[[0-9]]\.[[0-9]]\.\([[0-9]]\).$/\1/')
	37	AC_SUBST([MAJOR_VERSION], [$major_version])
	38	AC_SUBST([MINOR_VERSION], [$minor_version])
	39	AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
	40	AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
	41	AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
	42	AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
	43
	44	version_name="Fumisterie"
	45	version_description="The Fumisterie is a beer whose style is at the confluence of English and German ales. On the palate, it is full-bodied, malty and slightly caramelized. The organic hemp seeds incorporated during the brewing gives it a unique and original taste. The hop flavour comes through delicately in the after taste."
	46
	47	AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
	48	AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
	49
	50	AC_PROG_GREP
	51	# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
	52	AC_ARG_ENABLE(libtool-linkdep-fixup,
	53	AS_HELP_STRING([--disable-libtool-linkdep-fixup],
	54	[disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
	55	libtool_fixup=$enableval,
	56	libtool_fixup=yes)
	57
	58	AS_IF([test "x$libtool_fixup" = "xyes"],
	59	[
	60	libtool_m4="$srcdir/config/libtool.m4"
	61	libtool_flag_pattern=".link_all_deplibs\s,\s\$1\s)"
	62	AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
	63	libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s=\sno" $libtool_m4)
	64	AS_IF([test $libtool_flag_pattern_count -ne 0],
	65	[
	66	AC_MSG_RESULT([$libtool_flag_pattern_count])
	67	AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
	68	sed -i "s/\($libtool_flag_pattern\)\s=\sno/\1=unknown/g" $libtool_m4
	69	],
	70	[
	71	AC_MSG_RESULT([none])
	72	])
	73	])
	74
	75	AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
	76
	77	# Checks for programs.
	78	AC_PROG_CC
	79	AC_PROG_CXX
	80	AC_PROG_MAKE_SET
	81	LT_INIT
	82
	83	# rw_PROG_CXX_WORKS
	84	# Check whether the C++ compiler works.
	85	AC_CACHE_CHECK([whether the C++ compiler works],
	86	[rw_cv_prog_cxx_works],
	87	[AC_LANG_PUSH([C++])
	88	AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
	89	[check_cxx_designated_initializers=yes],
	90	[rw_cv_prog_cxx_works=no])
	91	if test "$check_cxx_designated_initializers" = "yes"; then
	92	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	93	struct foo { int a; int b; };
	94	void fct(void)
	95	{
	96	struct foo f = { .a = 0, .b = 1 };
	97	}
	98	]])],[
	99	rw_cv_prog_cxx_works=yes
	100	],[
	101	rw_cv_prog_cxx_works=no
	102	])
	103	fi
	104	AC_LANG_POP([C++])])
	105
	106	AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
	107
	108	## Checks for libraries.
	109	AC_CHECK_LIB([dl], [dlopen],
	110	[
	111	have_libdl=yes
	112	],
	113	[
	114	#libdl not found, check for dlopen in libc.
	115	AC_CHECK_LIB([c], [dlopen],
	116	[
	117	have_libc_dl=yes
	118	],
	119	[
	120	AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
	121	])
	122	])
	123	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
	124	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
	125
	126	AC_CHECK_LIB([pthread], [pthread_create])
	127
	128	# Check for dlfcn.h
	129	AC_CHECK_HEADER([dlfcn.h])
	130	AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
	131	[AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
	132	[#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
	133	#include <dlfcn.h>])
	134	],
	135	[ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
	136	AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
	137
	138	# Checks for header files.
	139	#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
	140
	141	# Checks for typedefs, structures, and compiler characteristics.
	142	AC_C_INLINE
	143	#AC_TYPE_INT16_T
	144	#AC_TYPE_INT32_T
	145	#AC_TYPE_INT64_T
	146	#AC_TYPE_INT8_T
	147	#AC_TYPE_PID_T
	148	#AC_TYPE_SIZE_T
	149	#AC_TYPE_SSIZE_T
	150	#AC_TYPE_UINT16_T
	151	#AC_TYPE_UINT32_T
	152	#AC_TYPE_UINT64_T
	153	#AC_TYPE_UINT8_T
	154	#AC_CHECK_TYPES([ptrdiff_t])
	155
	156	# Checks for library functions.
	157	AC_FUNC_MALLOC
	158	AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
	159
	160	CFLAGS="-Wall $CFLAGS"
	161
	162	# URCU
	163
	164	# urcu - check if we just find the headers it out of the box.
	165	AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
	166	This error can also occur when the liburcu package's configure script has not been run.])])
	167
	168	# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
	169	# Part of Userspace RCU library 0.7.2 or better.
	170	AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
	171	liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
	172
	173	AC_MSG_CHECKING([caa_likely()])
	174	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	175	#include <urcu/compiler.h>
	176	void fct(void)
	177	{
	178	if (caa_likely(1)) {
	179	}
	180	}
	181	]])],[
	182	AC_MSG_RESULT([yes])
	183	],[
	184	AC_MSG_RESULT([no])
	185	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
	186
	187	])
	188
	189	# urcu - check that URCU lib is available to compilation
	190	AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
	191
	192	# urcu - check that URCU lib is at least version 0.6
	193	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.])])
	194
	195	# optional linux/perf_event.h
	196	AC_CHECK_HEADERS([linux/perf_event.h], [have_perf_event=yes], [])
	197
	198	# Perf event counters are only supported on x86 so far.
	199	AC_MSG_CHECKING([UST support for architecture perf event counters])
	200	case $host_cpu in
	201	changequote(,)dnl
	202	i[3456]86)
	203	changequote([,])dnl
	204	UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	205	x86_64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	206	amd64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	207	*) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=no;;
	208	esac
	209	AC_MSG_RESULT([$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS])
	210
	211	AM_CONDITIONAL([HAVE_PERF_EVENT], [test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"])
	212
	213	if test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"; then
	214	AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])
	215	fi
	216
	217	AC_MSG_CHECKING([host system alignment requirements])
	218	case $host_cpu in
	219	changequote(,)dnl
	220	i[3456]86)
	221	changequote([,])dnl
	222	;;
	223	x86_64) ;;
	224	amd64) ;;
	225	powerpc) ;;
	226	ppc64) ;;
	227	ppc64le) ;;
	228	powerpc64) ;;
	229	powerpc64le) ;;
	230	s390) NO_UNALIGNED_ACCESS=1 ;;
	231	s390x) NO_UNALIGNED_ACCESS=1 ;;
	232	arm*) NO_UNALIGNED_ACCESS=1 ;;
	233	mips*) NO_UNALIGNED_ACCESS=1 ;;
	234	tile*) NO_UNALIGNED_ACCESS=1 ;;
	235	*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
	236	esac
	237	AC_MSG_RESULT([$host_cpu])
	238
	239	if test x$NO_UNALIGNED_ACCESS = x ; then
	240	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
	241	fi
	242
	243	# Set compile flags to java include files if given
	244	AC_ARG_WITH([java-jdk],
	245	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	246	[JAVA_JDK=$withval],
	247	[JAVA_JDK=""]
	248	)
	249	AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
	250	AC_SUBST([JAVA_JDK])
	251
	252	AS_IF([test $JAVA_JDK],[
	253	AS_IF([test -d $JAVA_JDK],[
	254	AC_MSG_RESULT([using Java includes in $JAVA_SDK])
	255	SUBDIRS=`find $JAVA_JDK/include -type d`
	256	CPPFLAGS+=" "
	257	CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
	258	CPPFLAGS+=" "
	259	],[
	260	AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
	261	])
	262	])
	263
	264	# Check for JNI header files if requested
	265	AC_ARG_WITH([jni-interface],
	266	[AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
	267	[jni_interface=$withval],
	268	[jni_interface=no]
	269	)
	270
	271	AS_IF([test "x$jni_interface" = "xyes"],[
	272	AC_CHECK_HEADERS([jni.h],[],[
	273	AC_MSG_ERROR([missing jni.h
	274	Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
	275	Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
	276	])
	277	])
	278	AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
	279
	280	# sdt.h integration
	281	AC_ARG_WITH([sdt],
	282	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
	283	[with_sdt=$withval],
	284	[with_sdt="no"]
	285	)
	286
	287	AS_IF([test "x$with_sdt" = "xyes"],[
	288	AC_MSG_CHECKING([STAP_PROBEV()])
	289	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	290	#define SDT_USE_VARIADIC
	291	#include <sys/sdt.h>
	292	void fct(void)
	293	{
	294	STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	295	}
	296	]])],[
	297	AC_MSG_RESULT([yes])
	298	AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
	299	],[
	300	AC_MSG_RESULT([no])
	301	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])
	302	])
	303	])
	304
	305	AC_MSG_CHECKING([whether shared libraries are enabled])
	306	AS_IF([test "x$enable_shared" = "xyes"],
	307	[
	308	AC_MSG_RESULT([yes])
	309	],
	310	[
	311	AC_MSG_RESULT([no])
	312	AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
	313	])
	314
	315	AC_ARG_WITH([lttng-system-rundir],
	316	AS_HELP_STRING([--with-lttng-system-rundir],
	317	[Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
	318	[lttng_system_rundir="$withval"],
	319	[lttng_system_rundir="/var/run/lttng"])
	320	AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
	321	[LTTng system runtime directory])
	322
	323	lttnglibjavadir="${libdir}/lttng/java"
	324	AC_SUBST(lttnglibjavadir)
	325
	326	AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
	327	AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
	328
	329	AC_CONFIG_FILES([
	330	Makefile
	331	doc/Makefile
	332	doc/examples/Makefile
	333	include/Makefile
	334	include/lttng/ust-version.h
	335	snprintf/Makefile
	336	libringbuffer/Makefile
	337	liblttng-ust-comm/Makefile
	338	liblttng-ust/Makefile
	339	liblttng-ust-ctl/Makefile
	340	liblttng-ust-fork/Makefile
	341	liblttng-ust-dl/Makefile
	342	liblttng-ust-java/Makefile
	343	liblttng-ust-jul/Makefile
	344	liblttng-ust-libc-wrapper/Makefile
	345	liblttng-ust-cyg-profile/Makefile
	346	tools/Makefile
	347	tests/Makefile
	348	tests/hello/Makefile
	349	tests/hello.cxx/Makefile
	350	tests/same_line_tracepoint/Makefile
	351	tests/snprintf/Makefile
	352	tests/benchmark/Makefile
	353	tests/utils/Makefile
	354	tests/java-jul/Makefile
	355	lttng-ust.pc
	356	])
	357
	358	AC_OUTPUT
	359
	360	AS_ECHO()
	361	AS_ECHO("Version name: $version_name")
	362	AS_ECHO("$version_description")
	363
	364	# Report on the configuration options
	365	AS_ECHO()
	366	AS_ECHO("LTTng-UST will be built with the following options:")
	367
	368	AS_ECHO()
	369	AS_ECHO_N("Java support (JNI): ")
	370	AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	371
	372	AS_ECHO_N("sdt.h integration: ")
	373	AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	374
	375	AS_ECHO()
	376	AS_ECHO("Type 'make' to compile.")
	377