[lttng-ust.git] / configure.ac

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

AC_INIT([lttng-ust],[2.0.0-rc1],[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
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.

AC_CONFIG_AUX_DIR([config])
AC_CANONICAL_TARGET
AC_CANONICAL_HOST
AC_CONFIG_MACRO_DIR([config])
AM_INIT_AUTOMAKE([foreign])
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])


# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_MAKE_SET
LT_INIT

## 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 libuuid
AC_CHECK_LIB([uuid], [uuid_generate],
[
	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBUUID], 1, [Has libuuid support.])
	have_libuuid=yes
],
[
	# libuuid not found, check for uuid_create in libc.
	AC_CHECK_LIB([c], [uuid_create],
	[
		AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
		have_libc_uuid=yes
	],
	[
		AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
	])
]
)
AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBUUID], [test "x$have_libuuid" = "xyes"])
AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_UUID], [test "x$have_libc_uuid" = "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"

# Check for texinfo, required for building the documentation
# TODO: make this (and building the documentation) optional
AC_CHECK_PROG([TEXINFO], [makeinfo], [yes])
AS_IF([test "x$TEXINFO" != "xyes"],[
	AC_MSG_ERROR([Please install the 'texinfo' program and make sure 'makeinfo' is in the PATH.])
])

# 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 [CFLAGS]=-Idir to specify their location.
This error can also occur when the liburcu package's configure script has not been run.])])

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.])])


# Check for various supplementary host information (beyond the
# triplet) which might affect the library format choices.  E.g., we
# can be building with `i686-unknown-linux-gnu-gcc -m64'

case "${host}" in
changequote(,)dnl
  i[34567]86-*-linux*)
changequote([,])dnl
    AC_CACHE_CHECK([if building for x86-64], [ust_cv_i386_is_x86_64],
                    [save_CPPFLAGS="$CPPFLAGS"
                    CPPFLAGS="$CPPFLAGS $CFLAGS"
                    AC_EGREP_CPP([got it], [
#if __x86_64__
got it
#endif
                 ], [ust_cv_i386_is_x86_64=yes],
                    [ust_cv_i386_is_x86_64=no])
                    CPPFLAGS="$save_CPPFLAGS"])
    ;;
esac

AC_MSG_CHECKING([library format for the host system])
case $host_cpu in
changequote(,)dnl
	i[3456]86)
changequote([,])dnl
	  if test "$ust_cv_i386_is_x86_64" = yes ; then
	     LIBFORMAT="elf64-x86-64"
	  else
	     LIBFORMAT="elf32-i386"
	  fi
	  ;;
	x86_64) LIBFORMAT="elf64-x86-64" ;;
	amd64) LIBFORMAT="elf64-x86-64" ;;
	powerpc) LIBFORMAT="elf32-powerpc" ;;
	ppc64) LIBFORMAT="elf64-powerpc" ;;
	powerpc64) LIBFORMAT="elf64-powerpc" ;;
	s390) LIBFORMAT="elf32-s390"; NO_UNALIGNED_ACCESS=1 ;;
	s390x) LIBFORMAT="elf64-s390"; NO_UNALIGNED_ACCESS=1 ;;
        armv5) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	arm) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	mips*) LIBFORMAT=""; NO_UNALIGNED_ACCESS=1;;
	*) AC_MSG_ERROR([unable to detect library format (unsupported architecture ($host_cpu)?)]) ;;
esac
AC_SUBST(LIBFORMAT)
AC_MSG_RESULT($LIBFORMAT)

if test "x$host_cpu" = "xarm" ; then
AC_MSG_CHECKING([checking for armv5])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef __ARM_ARCH_5TEJ__
#error "no arm5 here"
#endif
]])],[
	AC_MSG_RESULT([yes])
	NO_UNALIGNED_ACCESS=1

],[
	AC_MSG_RESULT([no])

])
fi
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=""]
)
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`
		CFLAGS+=" "
                CFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
		CFLAGS+=" "
        ],[
                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 CFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
	])
])

#currently disabled.
	#tests/hello2/Makefile
	#tests/basic/Makefile
	#tests/simple_include/Makefile
	#tests/snprintf/Makefile
	#tests/test-nevents/Makefile
	#tests/test-libustinstr-malloc/Makefile
	#tests/dlopen/Makefile
	#tests/same_line_marker/Makefile
	#tests/trace_event/Makefile
	#tests/tracepoint/Makefile
	#tests/tracepoint/benchmark/Makefile
	#tests/register_test/Makefile
	#tests/libustctl_function_#tests/Makefile
	#tests/exit-fast/Makefile
	#tests/basic_long/Makefile

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-java/Makefile
	liblttng-ust-libc-wrapper/Makefile
	tools/Makefile
	tests/Makefile
	tests/hello/Makefile
	tests/hello-static-lib/Makefile
	tests/hello.cxx/Makefile
	tests/demo/Makefile
	tests/fork/Makefile
	tests/ust-basic-tracing/Makefile
	tests/ust-multi-test/Makefile
	lttng-ust.pc
])

AC_OUTPUT

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

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],[2.0.0-rc1],[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	AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [0:0:0])
	9	# note: remember to update tracepoint.h dlopen() to match this version
	10	# number. TODO: eventually automate by exporting the major number.
	11
	12	AC_CONFIG_AUX_DIR([config])
	13	AC_CANONICAL_TARGET
	14	AC_CANONICAL_HOST
	15	AC_CONFIG_MACRO_DIR([config])
	16	AM_INIT_AUTOMAKE([foreign])
	17	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
	18	AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
	19
	20	# Configuration options, which will be installed in the config.h
	21	AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
	22	AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
	23	AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
	24
	25	# Compute minor/major/patchlevel version numbers
	26	AC_PROG_SED
	27	major_version=$(echo AC_PACKAGE_VERSION \| sed 's/^\([[0-9]]\)\.[[0-9]]\.[[0-9]].$/\1/')
	28	minor_version=$(echo AC_PACKAGE_VERSION \| sed 's/^[[0-9]]\.\([[0-9]]\)\.[[0-9]].$/\1/')
	29	patchlevel_version=$(echo AC_PACKAGE_VERSION \| sed 's/^[[0-9]]\.[[0-9]]\.\([[0-9]]\).$/\1/')
	30	AC_SUBST([MAJOR_VERSION], [$major_version])
	31	AC_SUBST([MINOR_VERSION], [$minor_version])
	32	AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
	33	AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
	34	AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
	35	AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
	36
	37
	38	# Checks for programs.
	39	AC_PROG_CC
	40	AC_PROG_CXX
	41	AC_PROG_MAKE_SET
	42	LT_INIT
	43
	44	## Checks for libraries.
	45	AC_CHECK_LIB([dl], [dlopen],
	46	[
	47	have_libdl=yes
	48	],
	49	[
	50	#libdl not found, check for dlopen in libc.
	51	AC_CHECK_LIB([c], [dlopen],
	52	[
	53	have_libc_dl=yes
	54	],
	55	[
	56	AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
	57	])
	58	])
	59	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
	60	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
	61
	62	AC_CHECK_LIB([pthread], [pthread_create])
	63
	64	# Check for libuuid
	65	AC_CHECK_LIB([uuid], [uuid_generate],
	66	[
	67	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBUUID], 1, [Has libuuid support.])
	68	have_libuuid=yes
	69	],
	70	[
	71	# libuuid not found, check for uuid_create in libc.
	72	AC_CHECK_LIB([c], [uuid_create],
	73	[
	74	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
	75	have_libc_uuid=yes
	76	],
	77	[
	78	AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
	79	])
	80	]
	81	)
	82	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBUUID], [test "x$have_libuuid" = "xyes"])
	83	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_UUID], [test "x$have_libc_uuid" = "xyes"])
	84
	85	# Checks for header files.
	86	#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
	87
	88	# Checks for typedefs, structures, and compiler characteristics.
	89	AC_C_INLINE
	90	#AC_TYPE_INT16_T
	91	#AC_TYPE_INT32_T
	92	#AC_TYPE_INT64_T
	93	#AC_TYPE_INT8_T
	94	#AC_TYPE_PID_T
	95	#AC_TYPE_SIZE_T
	96	#AC_TYPE_SSIZE_T
	97	#AC_TYPE_UINT16_T
	98	#AC_TYPE_UINT32_T
	99	#AC_TYPE_UINT64_T
	100	#AC_TYPE_UINT8_T
	101	#AC_CHECK_TYPES([ptrdiff_t])
	102
	103	# Checks for library functions.
	104	AC_FUNC_MALLOC
	105	AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
	106
	107	CFLAGS="-Wall $CFLAGS"
	108
	109	# Check for texinfo, required for building the documentation
	110	# TODO: make this (and building the documentation) optional
	111	AC_CHECK_PROG([TEXINFO], [makeinfo], [yes])
	112	AS_IF([test "x$TEXINFO" != "xyes"],[
	113	AC_MSG_ERROR([Please install the 'texinfo' program and make sure 'makeinfo' is in the PATH.])
	114	])
	115
	116	# URCU
	117
	118	# urcu - check if we just find the headers it out of the box.
	119	AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CFLAGS]=-Idir to specify their location.
	120	This error can also occur when the liburcu package's configure script has not been run.])])
	121
	122	AC_MSG_CHECKING([caa_likely()])
	123	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	124	#include <urcu/compiler.h>
	125	void fct(void)
	126	{
	127	if (caa_likely(1)) {
	128	}
	129	}
	130	]])],[
	131	AC_MSG_RESULT([yes])
	132	],[
	133	AC_MSG_RESULT([no])
	134	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
	135
	136	])
	137
	138	# urcu - check that URCU lib is available to compilation
	139	AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
	140
	141	# urcu - check that URCU lib is at least version 0.6
	142	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.])])
	143
	144
	145	# Check for various supplementary host information (beyond the
	146	# triplet) which might affect the library format choices. E.g., we
	147	# can be building with `i686-unknown-linux-gnu-gcc -m64'
	148
	149	case "${host}" in
	150	changequote(,)dnl
	151	i[34567]86--linux)
	152	changequote([,])dnl
	153	AC_CACHE_CHECK([if building for x86-64], [ust_cv_i386_is_x86_64],
	154	[save_CPPFLAGS="$CPPFLAGS"
	155	CPPFLAGS="$CPPFLAGS $CFLAGS"
	156	AC_EGREP_CPP([got it], [
	157	#if __x86_64__
	158	got it
	159	#endif
	160	], [ust_cv_i386_is_x86_64=yes],
	161	[ust_cv_i386_is_x86_64=no])
	162	CPPFLAGS="$save_CPPFLAGS"])
	163	;;
	164	esac
	165
	166	AC_MSG_CHECKING([library format for the host system])
	167	case $host_cpu in
	168	changequote(,)dnl
	169	i[3456]86)
	170	changequote([,])dnl
	171	if test "$ust_cv_i386_is_x86_64" = yes ; then
	172	LIBFORMAT="elf64-x86-64"
	173	else
	174	LIBFORMAT="elf32-i386"
	175	fi
	176	;;
	177	x86_64) LIBFORMAT="elf64-x86-64" ;;
	178	amd64) LIBFORMAT="elf64-x86-64" ;;
	179	powerpc) LIBFORMAT="elf32-powerpc" ;;
	180	ppc64) LIBFORMAT="elf64-powerpc" ;;
	181	powerpc64) LIBFORMAT="elf64-powerpc" ;;
	182	s390) LIBFORMAT="elf32-s390"; NO_UNALIGNED_ACCESS=1 ;;
	183	s390x) LIBFORMAT="elf64-s390"; NO_UNALIGNED_ACCESS=1 ;;
	184	armv5) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	185	arm) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	186	mips*) LIBFORMAT=""; NO_UNALIGNED_ACCESS=1;;
	187	*) AC_MSG_ERROR([unable to detect library format (unsupported architecture ($host_cpu)?)]) ;;
	188	esac
	189	AC_SUBST(LIBFORMAT)
	190	AC_MSG_RESULT($LIBFORMAT)
	191
	192	if test "x$host_cpu" = "xarm" ; then
	193	AC_MSG_CHECKING([checking for armv5])
	194	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	195	#ifndef __ARM_ARCH_5TEJ__
	196	#error "no arm5 here"
	197	#endif
	198	]])],[
	199	AC_MSG_RESULT([yes])
	200	NO_UNALIGNED_ACCESS=1
	201
	202	],[
	203	AC_MSG_RESULT([no])
	204
	205	])
	206	fi
	207	if test x$NO_UNALIGNED_ACCESS = x ; then
	208	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
	209	fi
	210
	211	# Set compile flags to java include files if given
	212	AC_ARG_WITH([java-jdk],
	213	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	214	[JAVA_JDK=$withval],
	215	[JAVA_JDK=""]
	216	)
	217	AS_IF([test $JAVA_JDK],[
	218	AS_IF([test -d $JAVA_JDK],[
	219	AC_MSG_RESULT([using Java includes in $JAVA_SDK])
	220	SUBDIRS=`find $JAVA_JDK/include -type d`
	221	CFLAGS+=" "
	222	CFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
	223	CFLAGS+=" "
	224	],[
	225	AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
	226	])
	227	])
	228
	229	# Check for JNI header files if requested
	230	AC_ARG_WITH([jni-interface],
	231	[AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
	232	[jni_interface=$withval],
	233	[jni_interface=no]
	234	)
	235
	236	AS_IF([test "x$jni_interface" = "xyes"],[
	237	AC_CHECK_HEADERS([jni.h],[],[
	238	AC_MSG_ERROR([missing jni.h
	239	Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
	240	Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
	241	])
	242	])
	243	AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
	244
	245	# sdt.h integration
	246	AC_ARG_WITH([sdt],
	247	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
	248	[with_sdt=$withval],
	249	[with_sdt="no"]
	250	)
	251
	252	AS_IF([test "x$with_sdt" = "xyes"],[
	253	AC_MSG_CHECKING([STAP_PROBEV()])
	254	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	255	#define SDT_USE_VARIADIC
	256	#include <sys/sdt.h>
	257	void fct(void)
	258	{
	259	STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	260	}
	261	]])],[
	262	AC_MSG_RESULT([yes])
	263	AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
	264	],[
	265	AC_MSG_RESULT([no])
	266	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 CFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
	267	])
	268	])
	269
	270	#currently disabled.
	271	#tests/hello2/Makefile
	272	#tests/basic/Makefile
	273	#tests/simple_include/Makefile
	274	#tests/snprintf/Makefile
	275	#tests/test-nevents/Makefile
	276	#tests/test-libustinstr-malloc/Makefile
	277	#tests/dlopen/Makefile
	278	#tests/same_line_marker/Makefile
	279	#tests/trace_event/Makefile
	280	#tests/tracepoint/Makefile
	281	#tests/tracepoint/benchmark/Makefile
	282	#tests/register_test/Makefile
	283	#tests/libustctl_function_#tests/Makefile
	284	#tests/exit-fast/Makefile
	285	#tests/basic_long/Makefile
	286
	287	AC_CONFIG_FILES([
	288	Makefile
	289	doc/Makefile
	290	doc/examples/Makefile
	291	include/Makefile
	292	include/lttng/ust-version.h
	293	snprintf/Makefile
	294	libringbuffer/Makefile
	295	liblttng-ust-comm/Makefile
	296	liblttng-ust/Makefile
	297	liblttng-ust-ctl/Makefile
	298	liblttng-ust-fork/Makefile
	299	liblttng-ust-java/Makefile
	300	liblttng-ust-libc-wrapper/Makefile
	301	tools/Makefile
	302	tests/Makefile
	303	tests/hello/Makefile
	304	tests/hello-static-lib/Makefile
	305	tests/hello.cxx/Makefile
	306	tests/demo/Makefile
	307	tests/fork/Makefile
	308	tests/ust-basic-tracing/Makefile
	309	tests/ust-multi-test/Makefile
	310	lttng-ust.pc
	311	])
	312
	313	AC_OUTPUT
	314
	315	# Report on the configuration options
	316	AS_ECHO()
	317	AS_ECHO("LTTng-UST will be built with the following options:")
	318	AS_ECHO("Library format: $LIBFORMAT")
	319
	320	AS_ECHO()
	321	AS_ECHO_N("Java support (JNI): ")
	322	AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	323
	324	AS_ECHO_N("sdt.h integration: ")
	325	AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	326
	327	AS_ECHO()
	328	AS_ECHO("Type 'make' to compile.")
	329