Detect and document dependency on -ldl on Linux, -lc on BSD for dlopen
[lttng-ust.git] / configure.ac
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 powerpc) LIBFORMAT="elf32-powerpc" ;;
179 ppc64) LIBFORMAT="elf64-powerpc" ;;
180 powerpc64) LIBFORMAT="elf64-powerpc" ;;
181 s390) LIBFORMAT="elf32-s390"; NO_UNALIGNED_ACCESS=1 ;;
182 s390x) LIBFORMAT="elf64-s390"; NO_UNALIGNED_ACCESS=1 ;;
183 armv5) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
184 arm) LIBFORMAT="elf32-littlearm"; NO_UNALIGNED_ACCESS=1 ;;
185 mips*) LIBFORMAT=""; NO_UNALIGNED_ACCESS=1;;
186 *) AC_MSG_ERROR([unable to detect library format (unsupported architecture ($host_cpu)?)]) ;;
187 esac
188 AC_SUBST(LIBFORMAT)
189 AC_MSG_RESULT($LIBFORMAT)
190
191 if test "x$host_cpu" = "xarm" ; then
192 AC_MSG_CHECKING([checking for armv5])
193 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
194 #ifndef __ARM_ARCH_5TEJ__
195 #error "no arm5 here"
196 #endif
197 ]])],[
198 AC_MSG_RESULT([yes])
199 NO_UNALIGNED_ACCESS=1
200
201 ],[
202 AC_MSG_RESULT([no])
203
204 ])
205 fi
206 if test x$NO_UNALIGNED_ACCESS = x ; then
207 AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
208 fi
209
210 # Set compile flags to java include files if given
211 AC_ARG_WITH([java-jdk],
212 [AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
213 [JAVA_JDK=$withval],
214 [JAVA_JDK=""]
215 )
216 AS_IF([test $JAVA_JDK],[
217 AS_IF([test -d $JAVA_JDK],[
218 AC_MSG_RESULT([using Java includes in $JAVA_SDK])
219 SUBDIRS=`find $JAVA_JDK/include -type d`
220 CFLAGS+=" "
221 CFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
222 CFLAGS+=" "
223 ],[
224 AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
225 ])
226 ])
227
228 # Check for JNI header files if requested
229 AC_ARG_WITH([jni-interface],
230 [AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
231 [jni_interface=$withval],
232 [jni_interface=no]
233 )
234
235 AS_IF([test "x$jni_interface" = "xyes"],[
236 AC_CHECK_HEADERS([jni.h],[],[
237 AC_MSG_ERROR([missing jni.h
238 Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
239 Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
240 ])
241 ])
242 AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
243
244 # sdt.h integration
245 AC_ARG_WITH([sdt],
246 [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
247 [with_sdt=$withval],
248 [with_sdt="no"]
249 )
250
251 AS_IF([test "x$with_sdt" = "xyes"],[
252 AC_MSG_CHECKING([STAP_PROBEV()])
253 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
254 #define SDT_USE_VARIADIC
255 #include <sys/sdt.h>
256 void fct(void)
257 {
258 STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
259 }
260 ]])],[
261 AC_MSG_RESULT([yes])
262 AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
263 ],[
264 AC_MSG_RESULT([no])
265 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])
266 ])
267 ])
268
269 #currently disabled.
270 #tests/hello2/Makefile
271 #tests/basic/Makefile
272 #tests/simple_include/Makefile
273 #tests/snprintf/Makefile
274 #tests/test-nevents/Makefile
275 #tests/test-libustinstr-malloc/Makefile
276 #tests/dlopen/Makefile
277 #tests/same_line_marker/Makefile
278 #tests/trace_event/Makefile
279 #tests/tracepoint/Makefile
280 #tests/tracepoint/benchmark/Makefile
281 #tests/register_test/Makefile
282 #tests/libustctl_function_#tests/Makefile
283 #tests/exit-fast/Makefile
284 #tests/basic_long/Makefile
285
286 AC_CONFIG_FILES([
287 Makefile
288 doc/Makefile
289 doc/examples/Makefile
290 include/Makefile
291 include/lttng/ust-version.h
292 snprintf/Makefile
293 libringbuffer/Makefile
294 liblttng-ust-comm/Makefile
295 liblttng-ust/Makefile
296 liblttng-ust-ctl/Makefile
297 liblttng-ust-fork/Makefile
298 liblttng-ust-java/Makefile
299 liblttng-ust-libc-wrapper/Makefile
300 tools/Makefile
301 tests/Makefile
302 tests/hello/Makefile
303 tests/hello-static-lib/Makefile
304 tests/hello.cxx/Makefile
305 tests/demo/Makefile
306 tests/fork/Makefile
307 tests/ust-basic-tracing/Makefile
308 tests/ust-multi-test/Makefile
309 lttng-ust.pc
310 ])
311
312 AC_OUTPUT
313
314 # Report on the configuration options
315 AS_ECHO()
316 AS_ECHO("LTTng-UST will be built with the following options:")
317 AS_ECHO("Library format: $LIBFORMAT")
318
319 AS_ECHO()
320 AS_ECHO_N("Java support (JNI): ")
321 AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
322
323 AS_ECHO_N("sdt.h integration: ")
324 AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
325
326 AS_ECHO()
327 AS_ECHO("Type 'make' to compile.")
328
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