[lttng-ust.git] / configure.ac

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

AC_INIT([lttng-ust],[2.5.4],[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"])

# Check if the compiler support weak symbols
AX_SYS_WEAK_ALIAS

if test "x${ax_cv_sys_weak_alias}" = "xno"; then
   AC_MSG_ERROR([Your platform doesn't support weak symbols.])
fi

## 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$jni_interface" = "xyes"],[
        AC_CHECK_HEADERS([jni.h],[],[
        AC_MSG_ERROR([missing jni.h
Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
Use the --with-java-jdk=DIR option to point to your JDK directory, or disable the JNI interface.])
	])
])
AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$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
1304f3df PMF	1	# -- Autoconf --
	2	# Process this file with autoconf to produce a configure script.
	3
c27e27ed	4	AC_INIT([lttng-ust],[2.5.4],[mathieu dot desnoyers at efficios dot com])
a334646a MD	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
41a2a9aa	8	# This is the library version of liblttng-ust.
a334646a MD	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
41a2a9aa MD	13	# This is the library version of liblttng-ust-ctl, used internally by
41a2a9aa MD	14	# liblttng-ust, lttng-sessiond, and lttng-consumerd.
76bacff6	15	AC_SUBST([LTTNG_UST_CTL_LIBRARY_VERSION], [2:0:0])
41a2a9aa	16
55355fa5	17	AC_CONFIG_AUX_DIR([config])
9441df61 PMF	18	AC_CANONICAL_TARGET
9441df61 PMF	19	AC_CANONICAL_HOST
50f3dba0	20	AC_CONFIG_MACRO_DIR([config])
76ceb8db	21	AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
846154aa	22	AM_MAINTAINER_MODE([enable])
50f3dba0	23	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
4318ae1b	24	AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
4846fadc AM	25
4846fadc AM	26	# Configuration options, which will be installed in the config.h
562c813a MD	27	AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
562c813a MD	28	AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
02120ddf	29	AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
d58d1454	30	AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.h])
23c8854a	31
b728d87e	32	# Compute minor/major/patchlevel version numbers
23c8854a	33	AC_PROG_SED
2694975d MD	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]]\.\([[0-9]]\).$/\1/')
161239e0 YB	37	AC_SUBST([MAJOR_VERSION], [$major_version])
161239e0 YB	38	AC_SUBST([MINOR_VERSION], [$minor_version])
b728d87e	39	AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
161239e0 YB	40	AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
161239e0 YB	41	AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
b728d87e	42	AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
161239e0	43
c2d275b8 MD	44	version_name="Fumisterie"
c2d275b8 MD	45	version_description="The Fumisterie is a beer whose style is at the confluence of English and German ales. On the palate, it is full-bodied, malty and slightly caramelized. The organic hemp seeds incorporated during the brewing gives it a unique and original taste. The hop flavour comes through delicately in the after taste."
0ff43c44	46
1c59f149 MD	47	AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
1c59f149 MD	48	AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
1304f3df	49
faebb418 CB	50	AC_PROG_GREP
	51	# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
	52	AC_ARG_ENABLE(libtool-linkdep-fixup,
	53	AS_HELP_STRING([--disable-libtool-linkdep-fixup],
	54	[disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
	55	libtool_fixup=$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" $libtool_m4
	69	],
	70	[
	71	AC_MSG_RESULT([none])
	72	])
	73	])
	74
824a00a7 MD	75	AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
824a00a7 MD	76
1304f3df PMF	77	# Checks for programs.
1304f3df PMF	78	AC_PROG_CC
6b79f035	79	AC_PROG_CXX
1304f3df	80	AC_PROG_MAKE_SET
fa1c6efe	81	LT_INIT
1304f3df	82
340f7763 SM	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([], [])],
8481f7a0	89	[check_cxx_designated_initializers=yes],
340f7763	90	[rw_cv_prog_cxx_works=no])
8481f7a0 ZT	91	if test "$check_cxx_designated_initializers" = "yes"; then
	92	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	93	struct foo { int a; int b; };
	94	void fct(void)
	95	{
	96	struct foo f = { .a = 0, .b = 1 };
	97	}
	98	]])],[
	99	rw_cv_prog_cxx_works=yes
	100	],[
	101	rw_cv_prog_cxx_works=no
	102	])
	103	fi
340f7763 SM	104	AC_LANG_POP([C++])])
	105
	106	AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
	107
3d7551de CB	108	# Check if the compiler support weak symbols
	109	AX_SYS_WEAK_ALIAS
	110
	111	if test "x${ax_cv_sys_weak_alias}" = "xno"; then
	112	AC_MSG_ERROR([Your platform doesn't support weak symbols.])
	113	fi
	114
1304f3df	115	## Checks for libraries.
c6c454ab MD	116	AC_CHECK_LIB([dl], [dlopen],
	117	[
	118	have_libdl=yes
	119	],
	120	[
	121	#libdl not found, check for dlopen in libc.
	122	AC_CHECK_LIB([c], [dlopen],
	123	[
	124	have_libc_dl=yes
	125	],
	126	[
	127	AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
	128	])
	129	])
	130	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
	131	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
	132
e26c8207	133	AC_CHECK_LIB([pthread], [pthread_create])
1304f3df	134
f9ff7aa4 RN	135	# Check for dlfcn.h
	136	AC_CHECK_HEADER([dlfcn.h])
	137	AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
	138	[AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
	139	[#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
	140	#include <dlfcn.h>])
	141	],
	142	[ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
	143	AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
	144
1304f3df PMF	145	# Checks for header files.
	146	#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
	147
	148	# Checks for typedefs, structures, and compiler characteristics.
	149	AC_C_INLINE
	150	#AC_TYPE_INT16_T
	151	#AC_TYPE_INT32_T
	152	#AC_TYPE_INT64_T
	153	#AC_TYPE_INT8_T
	154	#AC_TYPE_PID_T
	155	#AC_TYPE_SIZE_T
	156	#AC_TYPE_SSIZE_T
	157	#AC_TYPE_UINT16_T
	158	#AC_TYPE_UINT32_T
	159	#AC_TYPE_UINT64_T
	160	#AC_TYPE_UINT8_T
	161	#AC_CHECK_TYPES([ptrdiff_t])
	162
	163	# Checks for library functions.
	164	AC_FUNC_MALLOC
e9d165be	165	AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
1304f3df	166
fbae86d6 MD	167	CFLAGS="-Wall $CFLAGS"
fbae86d6 MD	168
8624c549 PMF	169	# URCU
	170
	171	# urcu - check if we just find the headers it out of the box.
135987a5	172	AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
cacb7fbe	173	This error can also occur when the liburcu package's configure script has not been run.])])
bf956ec0 MD	174
	175	# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
	176	# Part of Userspace RCU library 0.7.2 or better.
	177	AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
	178	liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
8624c549	179
b5a3dfa5	180	AC_MSG_CHECKING([caa_likely()])
31b07350	181	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
b5a3dfa5	182	#include <urcu/compiler.h>
b5a3dfa5 MD	183	void fct(void)
	184	{
	185	if (caa_likely(1)) {
	186	}
	187	}
727bb6cb	188	]])],[
b5a3dfa5	189	AC_MSG_RESULT([yes])
727bb6cb	190	],[
b5a3dfa5 MD	191	AC_MSG_RESULT([no])
b5a3dfa5 MD	192	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
727bb6cb MD	193
727bb6cb MD	194	])
b5a3dfa5	195
8624c549	196	# urcu - check that URCU lib is available to compilation
cfa0520d	197	AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
e3073410	198
a6830b14 MD	199	# urcu - check that URCU lib is at least version 0.6
a6830b14 MD	200	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.])])
e3073410	201
d58d1454 MD	202	# optional linux/perf_event.h
d58d1454 MD	203	AC_CHECK_HEADERS([linux/perf_event.h], [have_perf_event=yes], [])
d58d1454	204
1113f842 CB	205	# Perf event counters are only supported on x86 so far.
	206	AC_MSG_CHECKING([UST support for architecture perf event counters])
	207	case $host_cpu in
	208	changequote(,)dnl
	209	i[3456]86)
	210	changequote([,])dnl
	211	UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	212	x86_64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	213	amd64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
	214	*) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=no;;
	215	esac
	216	AC_MSG_RESULT([$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS])
	217
	218	AM_CONDITIONAL([HAVE_PERF_EVENT], [test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"])
	219
	220	if test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"; then
d58d1454 MD	221	AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])
	222	fi
	223
dca6e79f	224	AC_MSG_CHECKING([host system alignment requirements])
8fb0c941	225	case $host_cpu in
8c98245f PA	226	changequote(,)dnl
	227	i[3456]86)
	228	changequote([,])dnl
8c98245f	229	;;
dca6e79f MD	230	x86_64) ;;
	231	amd64) ;;
	232	powerpc) ;;
	233	ppc64) ;;
819caf5a	234	ppc64le) ;;
dca6e79f	235	powerpc64) ;;
819caf5a	236	powerpc64le) ;;
dca6e79f MD	237	s390) NO_UNALIGNED_ACCESS=1 ;;
	238	s390x) NO_UNALIGNED_ACCESS=1 ;;
	239	arm*) NO_UNALIGNED_ACCESS=1 ;;
bdac72fd SM	240	mips*) NO_UNALIGNED_ACCESS=1 ;;
bdac72fd SM	241	tile*) NO_UNALIGNED_ACCESS=1 ;;
dca6e79f	242	*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
9441df61	243	esac
f039c6b0	244	AC_MSG_RESULT([$host_cpu])
ed452f03	245
2699970a	246	if test x$NO_UNALIGNED_ACCESS = x ; then
562c813a	247	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
2699970a JW	248	fi
2699970a JW	249
2b6f8df9	250	# Set compile flags to java include files if given
b2263155 AM	251	AC_ARG_WITH([java-jdk],
	252	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	253	[JAVA_JDK=$withval],
	254	[JAVA_JDK=""]
	255	)
43e5396b DG	256	AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
	257	AC_SUBST([JAVA_JDK])
	258
b2263155 AM	259	AS_IF([test $JAVA_JDK],[
	260	AS_IF([test -d $JAVA_JDK],[
	261	AC_MSG_RESULT([using Java includes in $JAVA_SDK])
	262	SUBDIRS=`find $JAVA_JDK/include -type d`
135987a5 MD	263	CPPFLAGS+=" "
	264	CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
	265	CPPFLAGS+=" "
b2263155 AM	266	],[
	267	AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
	268	])
	269	])
2b6f8df9 MD	270
2b6f8df9 MD	271	# Check for JNI header files if requested
b2263155 AM	272	AC_ARG_WITH([jni-interface],
	273	[AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
	274	[jni_interface=$withval],
	275	[jni_interface=no]
	276	)
2b6f8df9	277
b2263155 AM	278	AS_IF([test "x$jni_interface" = "xyes"],[
	279	AC_CHECK_HEADERS([jni.h],[],[
	280	AC_MSG_ERROR([missing jni.h
	281	Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
95fde1c5	282	Use the --with-java-jdk=DIR option to point to your JDK directory, or disable the JNI interface.])
b2263155 AM	283	])
	284	])
	285	AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
2b6f8df9	286
4846fadc AM	287	# sdt.h integration
4846fadc AM	288	AC_ARG_WITH([sdt],
02120ddf	289	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
4846fadc AM	290	[with_sdt=$withval],
	291	[with_sdt="no"]
	292	)
	293
	294	AS_IF([test "x$with_sdt" = "xyes"],[
491f30fe MD	295	AC_MSG_CHECKING([STAP_PROBEV()])
	296	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	297	#define SDT_USE_VARIADIC
	298	#include <sys/sdt.h>
	299	void fct(void)
	300	{
	301	STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	302	}
	303	]])],[
	304	AC_MSG_RESULT([yes])
562c813a	305	AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
4846fadc	306	],[
491f30fe	307	AC_MSG_RESULT([no])
135987a5	308	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])
4846fadc AM	309	])
	310	])
	311
ccb19569 MD	312	AC_MSG_CHECKING([whether shared libraries are enabled])
	313	AS_IF([test "x$enable_shared" = "xyes"],
	314	[
	315	AC_MSG_RESULT([yes])
	316	],
	317	[
	318	AC_MSG_RESULT([no])
	319	AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
	320	])
	321
751d4e91 MD	322	AC_ARG_WITH([lttng-system-rundir],
	323	AS_HELP_STRING([--with-lttng-system-rundir],
	324	[Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
	325	[lttng_system_rundir="$withval"],
	326	[lttng_system_rundir="/var/run/lttng"])
	327	AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
	328	[LTTng system runtime directory])
	329
6490eba0 MD	330	lttnglibjavadir="${libdir}/lttng/java"
	331	AC_SUBST(lttnglibjavadir)
	332
dcb6ba25	333	AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
2b90f1d3 JG	334	AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
2b90f1d3 JG	335
55355fa5 JB	336	AC_CONFIG_FILES([
55355fa5 JB	337	Makefile
7ccf75d3 MD	338	doc/Makefile
7ccf75d3 MD	339	doc/examples/Makefile
69400ac4	340	include/Makefile
b728d87e	341	include/lttng/ust-version.h
69400ac4	342	snprintf/Makefile
4931a13e	343	libringbuffer/Makefile
69400ac4 MD	344	liblttng-ust-comm/Makefile
	345	liblttng-ust/Makefile
	346	liblttng-ust-ctl/Makefile
	347	liblttng-ust-fork/Makefile
b13d93c2	348	liblttng-ust-dl/Makefile
69400ac4	349	liblttng-ust-java/Makefile
43e5396b	350	liblttng-ust-jul/Makefile
476037d9	351	liblttng-ust-libc-wrapper/Makefile
70d654f2	352	liblttng-ust-cyg-profile/Makefile
b25c5b37	353	tools/Makefile
6dd969b5 PMF	354	tests/Makefile
6dd969b5 PMF	355	tests/hello/Makefile
6b79f035	356	tests/hello.cxx/Makefile
90c09854	357	tests/same_line_tracepoint/Makefile
d23b20e9	358	tests/snprintf/Makefile
a44af49d	359	tests/benchmark/Makefile
9a4b88ff	360	tests/utils/Makefile
43e5396b	361	tests/java-jul/Makefile
74a6d87b	362	lttng-ust.pc
55355fa5	363	])
1f9eff07	364
1304f3df	365	AC_OUTPUT
1f9eff07	366
649282a8 MD	367	AS_ECHO()
	368	AS_ECHO("Version name: $version_name")
	369	AS_ECHO("$version_description")
	370
1f9eff07 AM	371	# Report on the configuration options
	372	AS_ECHO()
	373	AS_ECHO("LTTng-UST will be built with the following options:")
1f9eff07 AM	374
	375	AS_ECHO()
	376	AS_ECHO_N("Java support (JNI): ")
	377	AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	378
	379	AS_ECHO_N("sdt.h integration: ")
	380	AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	381
	382	AS_ECHO()
	383	AS_ECHO("Type 'make' to compile.")
	384