[lttng-ust.git] / configure.ac

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

AC_INIT([lttng-ust],[2.0.1],[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])
		  ])
	    ])

# 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"

# 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.])])


# 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`
		CPPFLAGS+=" "
                CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
		CPPFLAGS+=" "
        ],[
                AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
        ])
])

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

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

# sdt.h integration
AC_ARG_WITH([sdt],
	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
	[with_sdt=$withval],
	[with_sdt="no"]
)

AS_IF([test "x$with_sdt" = "xyes"],[
	AC_MSG_CHECKING([STAP_PROBEV()])
	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	#define SDT_USE_VARIADIC
	#include <sys/sdt.h>
	void fct(void)
	{
		STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	}
	]])],[
		AC_MSG_RESULT([yes])
		AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
	],[
		AC_MSG_RESULT([no])
		AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. Make sure it is installed, and up to date, or use CPPFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
	])
])

#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

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("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],[2.0.1],[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" $libtool_m4
	61	],
	62	[
	63	AC_MSG_RESULT([none])
	64	])
	65	])
	66
	67	# Checks for programs.
	68	AC_PROG_CC
	69	AC_PROG_CXX
	70	AC_PROG_MAKE_SET
	71	LT_INIT
	72
	73	## Checks for libraries.
	74	AC_CHECK_LIB([dl], [dlopen],
	75	[
	76	have_libdl=yes
	77	],
	78	[
	79	#libdl not found, check for dlopen in libc.
	80	AC_CHECK_LIB([c], [dlopen],
	81	[
	82	have_libc_dl=yes
	83	],
	84	[
	85	AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
	86	])
	87	])
	88	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
	89	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
	90
	91	AC_CHECK_LIB([pthread], [pthread_create])
	92
	93	# Check for libuuid
	94	AC_CHECK_LIB([uuid], [uuid_generate],
	95	[
	96	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBUUID], 1, [Has libuuid support.])
	97	have_libuuid=yes
	98	],
	99	[
	100	# libuuid not found, check for uuid_create in libc.
	101	AC_CHECK_LIB([c], [uuid_create],
	102	[
	103	AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
	104	have_libc_uuid=yes
	105	],
	106	[
	107	AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
	108	])
	109	]
	110	)
	111	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBUUID], [test "x$have_libuuid" = "xyes"])
	112	AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_UUID], [test "x$have_libc_uuid" = "xyes"])
	113
	114	# Checks for header files.
	115	#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
	116
	117	# Checks for typedefs, structures, and compiler characteristics.
	118	AC_C_INLINE
	119	#AC_TYPE_INT16_T
	120	#AC_TYPE_INT32_T
	121	#AC_TYPE_INT64_T
	122	#AC_TYPE_INT8_T
	123	#AC_TYPE_PID_T
	124	#AC_TYPE_SIZE_T
	125	#AC_TYPE_SSIZE_T
	126	#AC_TYPE_UINT16_T
	127	#AC_TYPE_UINT32_T
	128	#AC_TYPE_UINT64_T
	129	#AC_TYPE_UINT8_T
	130	#AC_CHECK_TYPES([ptrdiff_t])
	131
	132	# Checks for library functions.
	133	AC_FUNC_MALLOC
	134	AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
	135
	136	CFLAGS="-Wall $CFLAGS"
	137
	138	# URCU
	139
	140	# urcu - check if we just find the headers it out of the box.
	141	AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
	142	This error can also occur when the liburcu package's configure script has not been run.])])
	143
	144	# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
	145	# Part of Userspace RCU library 0.7.2 or better.
	146	AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
	147	liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
	148
	149	AC_MSG_CHECKING([caa_likely()])
	150	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	151	#include <urcu/compiler.h>
	152	void fct(void)
	153	{
	154	if (caa_likely(1)) {
	155	}
	156	}
	157	]])],[
	158	AC_MSG_RESULT([yes])
	159	],[
	160	AC_MSG_RESULT([no])
	161	AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
	162
	163	])
	164
	165	# urcu - check that URCU lib is available to compilation
	166	AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
	167
	168	# urcu - check that URCU lib is at least version 0.6
	169	AC_CHECK_LIB([urcu-bp], [call_rcu_bp], [], [AC_MSG_ERROR([liburcu 0.6 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])])
	170
	171
	172	# Check for various supplementary host information (beyond the
	173	# triplet) which might affect the library format choices. E.g., we
	174	# can be building with `i686-unknown-linux-gnu-gcc -m64'
	175
	176	case "${host}" in
	177	changequote(,)dnl
	178	i[34567]86--linux)
	179	changequote([,])dnl
	180	AC_CACHE_CHECK([if building for x86-64], [ust_cv_i386_is_x86_64],
	181	[save_CPPFLAGS="$CPPFLAGS"
	182	CPPFLAGS="$CPPFLAGS $CFLAGS"
	183	AC_EGREP_CPP([got it], [
	184	#if __x86_64__
	185	got it
	186	#endif
	187	], [ust_cv_i386_is_x86_64=yes],
	188	[ust_cv_i386_is_x86_64=no])
	189	CPPFLAGS="$save_CPPFLAGS"])
	190	;;
	191	esac
	192
	193	AC_MSG_CHECKING([library format for the host system])
	194	case $host_cpu in
	195	changequote(,)dnl
	196	i[3456]86)
	197	changequote([,])dnl
	198	if test "$ust_cv_i386_is_x86_64" = yes ; then
	199	LIBFORMAT="elf64-x86-64"
	200	else
	201	LIBFORMAT="elf32-i386"
	202	fi
	203	;;
	204	x86_64) LIBFORMAT="elf64-x86-64" ;;
	205	amd64) LIBFORMAT="elf64-x86-64" ;;
	206	powerpc) LIBFORMAT="elf32-powerpc" ;;
	207	ppc64) LIBFORMAT="elf64-powerpc" ;;
	208	powerpc64) LIBFORMAT="elf64-powerpc" ;;
	209	s390) LIBFORMAT="elf32-s390"; NO_UNALIGNED_ACCESS=1 ;;
	210	s390x) LIBFORMAT="elf64-s390"; NO_UNALIGNED_ACCESS=1 ;;
	211	armv5) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	212	arm) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
	213	mips*) LIBFORMAT=""; NO_UNALIGNED_ACCESS=1;;
	214	*) AC_MSG_ERROR([unable to detect library format (unsupported architecture ($host_cpu)?)]) ;;
	215	esac
	216	AC_SUBST(LIBFORMAT)
	217	AC_MSG_RESULT($LIBFORMAT)
	218
	219	if test "x$host_cpu" = "xarm" ; then
	220	AC_MSG_CHECKING([checking for armv5])
	221	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	222	#ifndef __ARM_ARCH_5TEJ__
	223	#error "no arm5 here"
	224	#endif
	225	]])],[
	226	AC_MSG_RESULT([yes])
	227	NO_UNALIGNED_ACCESS=1
	228
	229	],[
	230	AC_MSG_RESULT([no])
	231
	232	])
	233	fi
	234	if test x$NO_UNALIGNED_ACCESS = x ; then
	235	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
	236	fi
	237
	238	# Set compile flags to java include files if given
	239	AC_ARG_WITH([java-jdk],
	240	[AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
	241	[JAVA_JDK=$withval],
	242	[JAVA_JDK=""]
	243	)
	244	AS_IF([test $JAVA_JDK],[
	245	AS_IF([test -d $JAVA_JDK],[
	246	AC_MSG_RESULT([using Java includes in $JAVA_SDK])
	247	SUBDIRS=`find $JAVA_JDK/include -type d`
	248	CPPFLAGS+=" "
	249	CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
	250	CPPFLAGS+=" "
	251	],[
	252	AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
	253	])
	254	])
	255
	256	# Check for JNI header files if requested
	257	AC_ARG_WITH([jni-interface],
	258	[AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
	259	[jni_interface=$withval],
	260	[jni_interface=no]
	261	)
	262
	263	AS_IF([test "x$jni_interface" = "xyes"],[
	264	AC_CHECK_HEADERS([jni.h],[],[
	265	AC_MSG_ERROR([missing jni.h
	266	Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
	267	Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
	268	])
	269	])
	270	AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
	271
	272	# sdt.h integration
	273	AC_ARG_WITH([sdt],
	274	[AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
	275	[with_sdt=$withval],
	276	[with_sdt="no"]
	277	)
	278
	279	AS_IF([test "x$with_sdt" = "xyes"],[
	280	AC_MSG_CHECKING([STAP_PROBEV()])
	281	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
	282	#define SDT_USE_VARIADIC
	283	#include <sys/sdt.h>
	284	void fct(void)
	285	{
	286	STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
	287	}
	288	]])],[
	289	AC_MSG_RESULT([yes])
	290	AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
	291	],[
	292	AC_MSG_RESULT([no])
	293	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])
	294	])
	295	])
	296
	297	#currently disabled.
	298	#tests/hello2/Makefile
	299	#tests/basic/Makefile
	300	#tests/simple_include/Makefile
	301	#tests/snprintf/Makefile
	302	#tests/test-nevents/Makefile
	303	#tests/test-libustinstr-malloc/Makefile
	304	#tests/dlopen/Makefile
	305	#tests/same_line_marker/Makefile
	306	#tests/trace_event/Makefile
	307	#tests/tracepoint/Makefile
	308	#tests/tracepoint/benchmark/Makefile
	309	#tests/register_test/Makefile
	310	#tests/libustctl_function_#tests/Makefile
	311	#tests/exit-fast/Makefile
	312	#tests/basic_long/Makefile
	313
	314	AC_CONFIG_FILES([
	315	Makefile
	316	doc/Makefile
	317	doc/examples/Makefile
	318	include/Makefile
	319	include/lttng/ust-version.h
	320	snprintf/Makefile
	321	libringbuffer/Makefile
	322	liblttng-ust-comm/Makefile
	323	liblttng-ust/Makefile
	324	liblttng-ust-ctl/Makefile
	325	liblttng-ust-fork/Makefile
	326	liblttng-ust-java/Makefile
	327	liblttng-ust-libc-wrapper/Makefile
	328	tools/Makefile
	329	tests/Makefile
	330	tests/hello/Makefile
	331	tests/hello-static-lib/Makefile
	332	tests/hello.cxx/Makefile
	333	tests/demo/Makefile
	334	tests/fork/Makefile
	335	tests/ust-basic-tracing/Makefile
	336	tests/ust-multi-test/Makefile
	337	lttng-ust.pc
	338	])
	339
	340	AC_OUTPUT
	341
	342	AS_ECHO()
	343	AS_ECHO("Version name: $version_name")
	344	AS_ECHO("$version_description")
	345
	346	# Report on the configuration options
	347	AS_ECHO()
	348	AS_ECHO("LTTng-UST will be built with the following options:")
	349	AS_ECHO("Library format: $LIBFORMAT")
	350
	351	AS_ECHO()
	352	AS_ECHO_N("Java support (JNI): ")
	353	AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	354
	355	AS_ECHO_N("sdt.h integration: ")
	356	AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
	357
	358	AS_ECHO()
	359	AS_ECHO("Type 'make' to compile.")
	360