[lttng-ust.git] / configure.ac

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

AC_INIT([lttng-ust],[2.0.6],[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 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="Annedd'ale"
version_description="New type of beer, 100% from Quebec, flavored with sapin beaumier needles, with a touch of hops."
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

## Checks for libraries.
AC_CHECK_LIB([dl], [dlopen])
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 its 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"

# 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.])])

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"])
    ;;
    # All symbols must be resolved at link time on Cygwin/MinGW/Windows,
    # else libtool will not be able to build shared libraries.
    *-*-cygwin*)
    LDFLAGS="-Wl,-no-undefined $LDFLAGS";;
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" ;;
	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`
		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)
        ])
])

# 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])
	])
])

#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

#	liblttng-ust-java/Makefile

# Disabled for now, because these libraries
# rely on the dlsym(3) RTLD_NEXT GNU extension.
# This is not implemented in Cygwin.
#liblttng-ust-fork/Makefile
#liblttng-ust-libc-wrapper/Makefile
#tests/fork/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
	tools/Makefile
	tests/Makefile
	tests/hello/Makefile
	tests/hello-static-lib/Makefile
	tests/hello.cxx/Makefile
	tests/demo/Makefile
	tests/ust-basic-tracing/Makefile
	tests/ust-multi-test/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("Library format: $LIBFORMAT")

AS_ECHO()
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],[2.0.6],[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 dist-bzip2 no-dist-gzip])
	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], $patchlevel_version, [UST patchlevel version number])
	36
	37	version_name="Annedd'ale"
	38	version_description="New type of beer, 100% from Quebec, flavored with sapin beaumier needles, with a touch of hops."
	39	AC_DEFINE_UNQUOTED([VERSION_NAME], [$version_name], [UST version name])
	40	AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], [$version_description], [UST version description])
	41
	42	AC_PROG_GREP
	43	# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
	44	AC_ARG_ENABLE(libtool-linkdep-fixup,
	45	AS_HELP_STRING([--disable-libtool-linkdep-fixup],
	46	[disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
	47	libtool_fixup=$enableval,
	48	libtool_fixup=yes)
	49
	50	AS_IF([test "x$libtool_fixup" = "xyes"],
	51	[
	52	libtool_m4="$srcdir/config/libtool.m4"
	53	libtool_flag_pattern=".link_all_deplibs\s,\s\$1\s)"
	54	AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
	55	libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s=\sno" $libtool_m4)
	56	AS_IF([test $libtool_flag_pattern_count -ne 0],
	57	[
	58	AC_MSG_RESULT([$libtool_flag_pattern_count])
	59	AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
	60	sed -i "s/\($libtool_flag_pattern\)\s=\sno/\1=unknown/g" $libtool_m4
	61	],
	62	[
	63	AC_MSG_RESULT([none])
	64	])
	65	])
	66
	67	AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
	68
	69	# Checks for programs.
	70	AC_PROG_CC
	71	AC_PROG_CXX
	72	AC_PROG_MAKE_SET
	73	LT_INIT
	74
	75	## Checks for libraries.
	76	AC_CHECK_LIB([dl], [dlopen])
	77	AC_CHECK_LIB([pthread], [pthread_create])
	78
	79	# Check for libuuid
	80	AC_CHECK_LIB([uuid], [uuid_generate],
	81	[
	82	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBUUID], 1, [Has libuuid support.])
	83	have_libuuid=yes
	84	],
	85	[
	86	# libuuid not found, check for uuid_create in libc.
	87	AC_CHECK_LIB([c], [uuid_create],
	88	[
	89	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
	90	have_libc_uuid=yes
	91	],
	92	[
	93	AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify its location.])
	94	])
	95	]
	96	)
	97	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBUUID], [test "x$have_libuuid" = "xyes"])
	98	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_UUID], [test "x$have_libc_uuid" = "xyes"])
	99
	100	# Checks for header files.
	101	#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
	102
	103	# Checks for typedefs, structures, and compiler characteristics.
	104	AC_C_INLINE
	105	#AC_TYPE_INT16_T
	106	#AC_TYPE_INT32_T
	107	#AC_TYPE_INT64_T
	108	#AC_TYPE_INT8_T
	109	#AC_TYPE_PID_T
	110	#AC_TYPE_SIZE_T
	111	#AC_TYPE_SSIZE_T
	112	#AC_TYPE_UINT16_T
	113	#AC_TYPE_UINT32_T
	114	#AC_TYPE_UINT64_T
	115	#AC_TYPE_UINT8_T
	116	#AC_CHECK_TYPES([ptrdiff_t])
	117
	118	# Checks for library functions.
	119	AC_FUNC_MALLOC
	120	AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
	121
	122	CFLAGS="-Wall $CFLAGS"
	123
	124	# URCU
	125
	126	# urcu - check if we just find the headers it out of the box.
	127	AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
	128	This error can also occur when the liburcu package's configure script has not been run.])])
	129
	130	AC_MSG_CHECKING([caa_likely()])
	131	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	132	#include <urcu/compiler.h>
	133	void fct(void)
	134	{
	135	if (caa_likely(1)) {
	136	}
	137	}
	138	]])],[
	139	AC_MSG_RESULT([yes])
	140	],[
	141	AC_MSG_RESULT([no])
	142	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
	143
	144	])
	145
	146	# urcu - check that URCU lib is available to compilation
	147	AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
	148
	149	# urcu - check that URCU lib is at least version 0.6
	150	AC_CHECK_LIB([urcu-bp], [call_rcu_bp], [], [AC_MSG_ERROR([liburcu 0.6 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])])
	151
	152
	153	# Check for various supplementary host information (beyond the
	154	# triplet) which might affect the library format choices. E.g., we
	155	# can be building with `i686-unknown-linux-gnu-gcc -m64'
	156
	157	case "${host}" in
	158	changequote(,)dnl
	159	i[34567]86--linux)
	160	changequote([,])dnl
	161	AC_CACHE_CHECK([if building for x86-64], [ust_cv_i386_is_x86_64],
	162	[save_CPPFLAGS="$CPPFLAGS"
	163	CPPFLAGS="$CPPFLAGS $CFLAGS"
	164	AC_EGREP_CPP([got it], [
	165	#if __x86_64__
	166	got it
	167	#endif
	168	], [ust_cv_i386_is_x86_64=yes],
	169	[ust_cv_i386_is_x86_64=no])
	170	CPPFLAGS="$save_CPPFLAGS"])
	171	;;
	172	# All symbols must be resolved at link time on Cygwin/MinGW/Windows,
	173	# else libtool will not be able to build shared libraries.
	174	--cygwin*)
	175	LDFLAGS="-Wl,-no-undefined $LDFLAGS";;
	176	esac
	177
	178	AC_MSG_CHECKING([library format for the host system])
	179	case $host_cpu in
	180	changequote(,)dnl
	181	i[3456]86)
	182	changequote([,])dnl
	183	if test "$ust_cv_i386_is_x86_64" = yes ; then
	184	LIBFORMAT="elf64-x86-64"
	185	else
	186	LIBFORMAT="elf32-i386"
	187	fi
	188	;;
	189	x86_64) LIBFORMAT="elf64-x86-64" ;;
	190	powerpc) LIBFORMAT="elf32-powerpc" ;;
	191	ppc64) LIBFORMAT="elf64-powerpc" ;;
	192	powerpc64) LIBFORMAT="elf64-powerpc" ;;
	193	s390) LIBFORMAT="elf32-s390"; NO_UNALIGNED_ACCESS=1 ;;
	194	s390x) LIBFORMAT="elf64-s390"; NO_UNALIGNED_ACCESS=1 ;;
	195	armv5) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	196	arm) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	197	mips*) LIBFORMAT=""; NO_UNALIGNED_ACCESS=1;;
	198	*) AC_MSG_ERROR([unable to detect library format (unsupported architecture ($host_cpu)?)]) ;;
	199	esac
	200	AC_SUBST(LIBFORMAT)
	201	AC_MSG_RESULT($LIBFORMAT)
	202
	203	if test "x$host_cpu" = "xarm" ; then
	204	AC_MSG_CHECKING([checking for armv5])
	205	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	206	#ifndef __ARM_ARCH_5TEJ__
	207	#error "no arm5 here"
	208	#endif
	209	]])],[
	210	AC_MSG_RESULT([yes])
	211	NO_UNALIGNED_ACCESS=1
	212
	213	],[
	214	AC_MSG_RESULT([no])
	215
	216	])
	217	fi
	218	if test x$NO_UNALIGNED_ACCESS = x ; then
	219	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
	220	fi
	221
	222	# Set compile flags to java include files if given
	223	AC_ARG_WITH([java-jdk],
	224	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	225	[JAVA_JDK=$withval],
	226	[JAVA_JDK=""]
	227	)
	228	AS_IF([test $JAVA_JDK],[
	229	AS_IF([test -d $JAVA_JDK],[
	230	AC_MSG_RESULT([using Java includes in $JAVA_SDK])
	231	SUBDIRS=`find $JAVA_JDK/include -type d`
	232	CPPFLAGS+=" "
	233	CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
	234	CPPFLAGS+=" "
	235	],[
	236	AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
	237	])
	238	])
	239
	240	# sdt.h integration
	241	AC_ARG_WITH([sdt],
	242	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
	243	[with_sdt=$withval],
	244	[with_sdt="no"]
	245	)
	246
	247	AS_IF([test "x$with_sdt" = "xyes"],[
	248	AC_MSG_CHECKING([STAP_PROBEV()])
	249	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	250	#define SDT_USE_VARIADIC
	251	#include <sys/sdt.h>
	252	void fct(void)
	253	{
	254	STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	255	}
	256	]])],[
	257	AC_MSG_RESULT([yes])
	258	AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
	259	],[
	260	AC_MSG_RESULT([no])
	261	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])
	262	])
	263	])
	264
	265	#currently disabled.
	266	#tests/hello2/Makefile
	267	#tests/basic/Makefile
	268	#tests/simple_include/Makefile
	269	#tests/snprintf/Makefile
	270	#tests/test-nevents/Makefile
	271	#tests/test-libustinstr-malloc/Makefile
	272	#tests/dlopen/Makefile
	273	#tests/same_line_marker/Makefile
	274	#tests/trace_event/Makefile
	275	#tests/tracepoint/Makefile
	276	#tests/tracepoint/benchmark/Makefile
	277	#tests/register_test/Makefile
	278	#tests/libustctl_function_#tests/Makefile
	279	#tests/exit-fast/Makefile
	280	#tests/basic_long/Makefile
	281
	282	# liblttng-ust-java/Makefile
	283
	284	# Disabled for now, because these libraries
	285	# rely on the dlsym(3) RTLD_NEXT GNU extension.
	286	# This is not implemented in Cygwin.
	287	#liblttng-ust-fork/Makefile
	288	#liblttng-ust-libc-wrapper/Makefile
	289	#tests/fork/Makefile
	290
	291	AC_CONFIG_FILES([
	292	Makefile
	293	doc/Makefile
	294	doc/examples/Makefile
	295	include/Makefile
	296	include/lttng/ust-version.h
	297	snprintf/Makefile
	298	libringbuffer/Makefile
	299	liblttng-ust-comm/Makefile
	300	liblttng-ust/Makefile
	301	liblttng-ust-ctl/Makefile
	302	tools/Makefile
	303	tests/Makefile
	304	tests/hello/Makefile
	305	tests/hello-static-lib/Makefile
	306	tests/hello.cxx/Makefile
	307	tests/demo/Makefile
	308	tests/ust-basic-tracing/Makefile
	309	tests/ust-multi-test/Makefile
	310	lttng-ust.pc
	311	])
	312
	313	AC_OUTPUT
	314
	315	AS_ECHO()
	316	AS_ECHO("Version name: $version_name")
	317	AS_ECHO("$version_description")
	318
	319	# Report on the configuration options
	320	AS_ECHO()
	321	AS_ECHO("LTTng-UST will be built with the following options:")
	322	AS_ECHO("Library format: $LIBFORMAT")
	323
	324	AS_ECHO()
	325	AS_ECHO_N("sdt.h integration: ")
	326	AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	327
	328	AS_ECHO()
	329	AS_ECHO("Type 'make' to compile.")
	330