[lttng-ust.git] / configure.ac

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

AC_INIT([lttng-ust],[2.4.2],[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])
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])

# 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="Époque Opaque"
version_description="The Époque Opaque is a black IPA from Trou du Diable brewery. The nose is eerily reminiscent of the coffee crisp candy from of our childhood. These strong mocha accents are present on the palate, which are quickly subdued by Japanese and Australian hops leading to a final state of satisfaction enjoyable for any fan of bitter beer."

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.])])

AC_MSG_CHECKING([host system alignment requirements])
case $host_cpu in
changequote(,)dnl
	i[3456]86)
changequote([,])dnl
	  ;;
	x86_64) ;;
	amd64) ;;
	powerpc) ;;
	ppc64) ;;
	powerpc64) ;;
	s390) NO_UNALIGNED_ACCESS=1 ;;
	s390x) NO_UNALIGNED_ACCESS=1 ;;
        arm*) NO_UNALIGNED_ACCESS=1 ;;
	mips*) NO_UNALIGNED_ACCESS=1 ;;
	tile*) NO_UNALIGNED_ACCESS=1 ;;
	*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($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
	1	# -- Autoconf --
	2	# Process this file with autoconf to produce a configure script.
	3
	4	AC_INIT([lttng-ust],[2.4.2],[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	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
	23	AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
	24
	25	# Configuration options, which will be installed in the config.h
	26	AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
	27	AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
	28	AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
	29
	30	# Compute minor/major/patchlevel version numbers
	31	AC_PROG_SED
	32	major_version=$(echo AC_PACKAGE_VERSION \| sed 's/^\([[0-9]]\)\.[[0-9]]\.[[0-9]].$/\1/')
	33	minor_version=$(echo AC_PACKAGE_VERSION \| sed 's/^[[0-9]]\.\([[0-9]]\)\.[[0-9]].$/\1/')
	34	patchlevel_version=$(echo AC_PACKAGE_VERSION \| sed 's/^[[0-9]]\.[[0-9]]\.\([[0-9]]\).$/\1/')
	35	AC_SUBST([MAJOR_VERSION], [$major_version])
	36	AC_SUBST([MINOR_VERSION], [$minor_version])
	37	AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
	38	AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
	39	AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
	40	AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
	41
	42	version_name="Époque Opaque"
	43	version_description="The Époque Opaque is a black IPA from Trou du Diable brewery. The nose is eerily reminiscent of the coffee crisp candy from of our childhood. These strong mocha accents are present on the palate, which are quickly subdued by Japanese and Australian hops leading to a final state of satisfaction enjoyable for any fan of bitter beer."
	44
	45	AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
	46	AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
	47
	48	AC_PROG_GREP
	49	# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
	50	AC_ARG_ENABLE(libtool-linkdep-fixup,
	51	AS_HELP_STRING([--disable-libtool-linkdep-fixup],
	52	[disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
	53	libtool_fixup=$enableval,
	54	libtool_fixup=yes)
	55
	56	AS_IF([test "x$libtool_fixup" = "xyes"],
	57	[
	58	libtool_m4="$srcdir/config/libtool.m4"
	59	libtool_flag_pattern=".link_all_deplibs\s,\s\$1\s)"
	60	AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
	61	libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s=\sno" $libtool_m4)
	62	AS_IF([test $libtool_flag_pattern_count -ne 0],
	63	[
	64	AC_MSG_RESULT([$libtool_flag_pattern_count])
	65	AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
	66	sed -i "s/\($libtool_flag_pattern\)\s=\sno/\1=unknown/g" $libtool_m4
	67	],
	68	[
	69	AC_MSG_RESULT([none])
	70	])
	71	])
	72
	73	AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
	74
	75	# Checks for programs.
	76	AC_PROG_CC
	77	AC_PROG_CXX
	78	AC_PROG_MAKE_SET
	79	LT_INIT
	80
	81	# rw_PROG_CXX_WORKS
	82	# Check whether the C++ compiler works.
	83	AC_CACHE_CHECK([whether the C++ compiler works],
	84	[rw_cv_prog_cxx_works],
	85	[AC_LANG_PUSH([C++])
	86	AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
	87	[check_cxx_designated_initializers=yes],
	88	[rw_cv_prog_cxx_works=no])
	89	if test "$check_cxx_designated_initializers" = "yes"; then
	90	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	91	struct foo { int a; int b; };
	92	void fct(void)
	93	{
	94	struct foo f = { .a = 0, .b = 1 };
	95	}
	96	]])],[
	97	rw_cv_prog_cxx_works=yes
	98	],[
	99	rw_cv_prog_cxx_works=no
	100	])
	101	fi
	102	AC_LANG_POP([C++])])
	103
	104	AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
	105
	106	## Checks for libraries.
	107	AC_CHECK_LIB([dl], [dlopen],
	108	[
	109	have_libdl=yes
	110	],
	111	[
	112	#libdl not found, check for dlopen in libc.
	113	AC_CHECK_LIB([c], [dlopen],
	114	[
	115	have_libc_dl=yes
	116	],
	117	[
	118	AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
	119	])
	120	])
	121	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
	122	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
	123
	124	AC_CHECK_LIB([pthread], [pthread_create])
	125
	126	# Check for dlfcn.h
	127	AC_CHECK_HEADER([dlfcn.h])
	128	AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
	129	[AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
	130	[#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
	131	#include <dlfcn.h>])
	132	],
	133	[ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
	134	AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
	135
	136	# Checks for header files.
	137	#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
	138
	139	# Checks for typedefs, structures, and compiler characteristics.
	140	AC_C_INLINE
	141	#AC_TYPE_INT16_T
	142	#AC_TYPE_INT32_T
	143	#AC_TYPE_INT64_T
	144	#AC_TYPE_INT8_T
	145	#AC_TYPE_PID_T
	146	#AC_TYPE_SIZE_T
	147	#AC_TYPE_SSIZE_T
	148	#AC_TYPE_UINT16_T
	149	#AC_TYPE_UINT32_T
	150	#AC_TYPE_UINT64_T
	151	#AC_TYPE_UINT8_T
	152	#AC_CHECK_TYPES([ptrdiff_t])
	153
	154	# Checks for library functions.
	155	AC_FUNC_MALLOC
	156	AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
	157
	158	CFLAGS="-Wall $CFLAGS"
	159
	160	# URCU
	161
	162	# urcu - check if we just find the headers it out of the box.
	163	AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
	164	This error can also occur when the liburcu package's configure script has not been run.])])
	165
	166	# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
	167	# Part of Userspace RCU library 0.7.2 or better.
	168	AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
	169	liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
	170
	171	AC_MSG_CHECKING([caa_likely()])
	172	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	173	#include <urcu/compiler.h>
	174	void fct(void)
	175	{
	176	if (caa_likely(1)) {
	177	}
	178	}
	179	]])],[
	180	AC_MSG_RESULT([yes])
	181	],[
	182	AC_MSG_RESULT([no])
	183	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
	184
	185	])
	186
	187	# urcu - check that URCU lib is available to compilation
	188	AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
	189
	190	# urcu - check that URCU lib is at least version 0.6
	191	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.])])
	192
	193	AC_MSG_CHECKING([host system alignment requirements])
	194	case $host_cpu in
	195	changequote(,)dnl
	196	i[3456]86)
	197	changequote([,])dnl
	198	;;
	199	x86_64) ;;
	200	amd64) ;;
	201	powerpc) ;;
	202	ppc64) ;;
	203	powerpc64) ;;
	204	s390) NO_UNALIGNED_ACCESS=1 ;;
	205	s390x) NO_UNALIGNED_ACCESS=1 ;;
	206	arm*) NO_UNALIGNED_ACCESS=1 ;;
	207	mips*) NO_UNALIGNED_ACCESS=1 ;;
	208	tile*) NO_UNALIGNED_ACCESS=1 ;;
	209	*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
	210	esac
	211	AC_MSG_RESULT([$host_cpu])
	212
	213	if test x$NO_UNALIGNED_ACCESS = x ; then
	214	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
	215	fi
	216
	217	# Set compile flags to java include files if given
	218	AC_ARG_WITH([java-jdk],
	219	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	220	[JAVA_JDK=$withval],
	221	[JAVA_JDK=""]
	222	)
	223	AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
	224	AC_SUBST([JAVA_JDK])
	225
	226	AS_IF([test $JAVA_JDK],[
	227	AS_IF([test -d $JAVA_JDK],[
	228	AC_MSG_RESULT([using Java includes in $JAVA_SDK])
	229	SUBDIRS=`find $JAVA_JDK/include -type d`
	230	CPPFLAGS+=" "
	231	CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
	232	CPPFLAGS+=" "
	233	],[
	234	AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
	235	])
	236	])
	237
	238	# Check for JNI header files if requested
	239	AC_ARG_WITH([jni-interface],
	240	[AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
	241	[jni_interface=$withval],
	242	[jni_interface=no]
	243	)
	244
	245	AS_IF([test "x$jni_interface" = "xyes"],[
	246	AC_CHECK_HEADERS([jni.h],[],[
	247	AC_MSG_ERROR([missing jni.h
	248	Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
	249	Use the --with-java-jdk=DIR option to point to your JDK directory, or disable the JNI interface.])
	250	])
	251	])
	252	AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
	253
	254	# sdt.h integration
	255	AC_ARG_WITH([sdt],
	256	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
	257	[with_sdt=$withval],
	258	[with_sdt="no"]
	259	)
	260
	261	AS_IF([test "x$with_sdt" = "xyes"],[
	262	AC_MSG_CHECKING([STAP_PROBEV()])
	263	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	264	#define SDT_USE_VARIADIC
	265	#include <sys/sdt.h>
	266	void fct(void)
	267	{
	268	STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	269	}
	270	]])],[
	271	AC_MSG_RESULT([yes])
	272	AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
	273	],[
	274	AC_MSG_RESULT([no])
	275	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])
	276	])
	277	])
	278
	279	AC_MSG_CHECKING([whether shared libraries are enabled])
	280	AS_IF([test "x$enable_shared" = "xyes"],
	281	[
	282	AC_MSG_RESULT([yes])
	283	],
	284	[
	285	AC_MSG_RESULT([no])
	286	AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
	287	])
	288
	289	AC_ARG_WITH([lttng-system-rundir],
	290	AS_HELP_STRING([--with-lttng-system-rundir],
	291	[Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
	292	[lttng_system_rundir="$withval"],
	293	[lttng_system_rundir="/var/run/lttng"])
	294	AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
	295	[LTTng system runtime directory])
	296
	297	lttnglibjavadir="${libdir}/lttng/java"
	298	AC_SUBST(lttnglibjavadir)
	299
	300	AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
	301	AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
	302
	303	AC_CONFIG_FILES([
	304	Makefile
	305	doc/Makefile
	306	doc/examples/Makefile
	307	include/Makefile
	308	include/lttng/ust-version.h
	309	snprintf/Makefile
	310	libringbuffer/Makefile
	311	liblttng-ust-comm/Makefile
	312	liblttng-ust/Makefile
	313	liblttng-ust-ctl/Makefile
	314	liblttng-ust-fork/Makefile
	315	liblttng-ust-dl/Makefile
	316	liblttng-ust-java/Makefile
	317	liblttng-ust-jul/Makefile
	318	liblttng-ust-libc-wrapper/Makefile
	319	liblttng-ust-cyg-profile/Makefile
	320	tools/Makefile
	321	tests/Makefile
	322	tests/hello/Makefile
	323	tests/hello.cxx/Makefile
	324	tests/same_line_tracepoint/Makefile
	325	tests/snprintf/Makefile
	326	tests/benchmark/Makefile
	327	tests/utils/Makefile
	328	tests/java-jul/Makefile
	329	lttng-ust.pc
	330	])
	331
	332	AC_OUTPUT
	333
	334	AS_ECHO()
	335	AS_ECHO("Version name: $version_name")
	336	AS_ECHO("$version_description")
	337
	338	# Report on the configuration options
	339	AS_ECHO()
	340	AS_ECHO("LTTng-UST will be built with the following options:")
	341
	342	AS_ECHO()
	343	AS_ECHO_N("Java support (JNI): ")
	344	AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	345
	346	AS_ECHO_N("sdt.h integration: ")
	347	AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	348
	349	AS_ECHO()
	350	AS_ECHO("Type 'make' to compile.")
	351