Fix: add a configure check for weak symbols support
[lttng-ust.git] / configure.ac
1 # -*- Autoconf -*-
2 # Process this file with autoconf to produce a configure script.
3
4 AC_INIT([lttng-ust],[2.6.0-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 # 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 AM_MAINTAINER_MODE([enable])
23 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
24 AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
25
26 # Configuration options, which will be installed in the config.h
27 AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
28 AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
29 AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
30 AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.h])
31
32 # Compute minor/major/patchlevel version numbers
33 AC_PROG_SED
34 major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
35 minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
36 patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
37 AC_SUBST([MAJOR_VERSION], [$major_version])
38 AC_SUBST([MINOR_VERSION], [$minor_version])
39 AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
40 AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
41 AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
42 AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
43
44 version_name="Gaia"
45 version_description="From Benelux brewery in Montreal, the Gaia is a witbier with a cloudy light amber ale color. Aroma of coriander with floral hay notes is enchanting. Taste is also dominated by the very floral coriander note and some medium sweet malt notes."
46
47 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
48 AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
49
50 AC_PROG_GREP
51 AC_PROG_LN_S
52 # libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
53 AC_ARG_ENABLE(libtool-linkdep-fixup,
54 AS_HELP_STRING([--disable-libtool-linkdep-fixup],
55 [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
56 libtool_fixup=$enableval,
57 libtool_fixup=yes)
58
59 AS_IF([test "x$libtool_fixup" = "xyes"],
60 [
61 libtool_m4="$srcdir/config/libtool.m4"
62 libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"
63 AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
64 libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)
65 AS_IF([test $libtool_flag_pattern_count -ne 0],
66 [
67 AC_MSG_RESULT([$libtool_flag_pattern_count])
68 AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
69 sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4
70 ],
71 [
72 AC_MSG_RESULT([none])
73 ])
74 ])
75
76 AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
77
78 # Checks for programs.
79 AC_PROG_CC
80 AC_PROG_CXX
81 AC_PROG_MAKE_SET
82 LT_INIT
83
84 # rw_PROG_CXX_WORKS
85 # Check whether the C++ compiler works.
86 AC_CACHE_CHECK([whether the C++ compiler works],
87 [rw_cv_prog_cxx_works],
88 [AC_LANG_PUSH([C++])
89 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
90 [check_cxx_designated_initializers=yes],
91 [rw_cv_prog_cxx_works=no])
92 if test "$check_cxx_designated_initializers" = "yes"; then
93 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
94 struct foo { int a; int b; };
95 void fct(void)
96 {
97 struct foo f = { .a = 0, .b = 1 };
98 }
99 ]])],[
100 rw_cv_prog_cxx_works=yes
101 ],[
102 rw_cv_prog_cxx_works=no
103 ])
104 fi
105 AC_LANG_POP([C++])])
106
107 AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
108
109 # Check if the compiler support weak symbols
110 AX_SYS_WEAK_ALIAS
111
112 if test "x${ax_cv_sys_weak_alias}" = "xno"; then
113 AC_MSG_ERROR([Your platform doesn't support weak symbols.])
114 fi
115
116 ## Checks for libraries.
117 AC_CHECK_LIB([dl], [dlopen],
118 [
119 have_libdl=yes
120 ],
121 [
122 #libdl not found, check for dlopen in libc.
123 AC_CHECK_LIB([c], [dlopen],
124 [
125 have_libc_dl=yes
126 ],
127 [
128 AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
129 ])
130 ])
131 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
132 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
133
134 AC_CHECK_LIB([pthread], [pthread_create])
135
136 # Check for dlfcn.h
137 AC_CHECK_HEADER([dlfcn.h])
138 AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
139 [AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
140 [#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
141 #include <dlfcn.h>])
142 ],
143 [ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
144 AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
145
146 # Checks for header files.
147 #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
148
149 # Checks for typedefs, structures, and compiler characteristics.
150 AC_C_INLINE
151 #AC_TYPE_INT16_T
152 #AC_TYPE_INT32_T
153 #AC_TYPE_INT64_T
154 #AC_TYPE_INT8_T
155 #AC_TYPE_PID_T
156 #AC_TYPE_SIZE_T
157 #AC_TYPE_SSIZE_T
158 #AC_TYPE_UINT16_T
159 #AC_TYPE_UINT32_T
160 #AC_TYPE_UINT64_T
161 #AC_TYPE_UINT8_T
162 #AC_CHECK_TYPES([ptrdiff_t])
163
164 # Checks for library functions.
165 AC_FUNC_MALLOC
166 AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
167
168 CFLAGS="-Wall $CFLAGS"
169
170 # URCU
171
172 # urcu - check if we just find the headers it out of the box.
173 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
174 This error can also occur when the liburcu package's configure script has not been run.])])
175
176 # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
177 # Part of Userspace RCU library 0.7.2 or better.
178 AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
179 liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
180
181 AC_MSG_CHECKING([caa_likely()])
182 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
183 #include <urcu/compiler.h>
184 void fct(void)
185 {
186 if (caa_likely(1)) {
187 }
188 }
189 ]])],[
190 AC_MSG_RESULT([yes])
191 ],[
192 AC_MSG_RESULT([no])
193 AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
194
195 ])
196
197 # urcu - check that URCU lib is available to compilation
198 AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
199
200 # urcu - check that URCU lib is at least version 0.6
201 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.])])
202
203 # optional linux/perf_event.h
204 AC_CHECK_HEADERS([linux/perf_event.h], [have_perf_event=yes], [])
205
206 # Perf event counters are only supported on x86 so far.
207 AC_MSG_CHECKING([UST support for architecture perf event counters])
208 case $host_cpu in
209 changequote(,)dnl
210 i[3456]86)
211 changequote([,])dnl
212 UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
213 x86_64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
214 amd64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
215 *) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=no;;
216 esac
217 AC_MSG_RESULT([$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS])
218
219 AM_CONDITIONAL([HAVE_PERF_EVENT], [test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"])
220
221 if test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"; then
222 AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])
223 fi
224
225 AC_MSG_CHECKING([host system alignment requirements])
226 case $host_cpu in
227 changequote(,)dnl
228 i[3456]86)
229 changequote([,])dnl
230 ;;
231 x86_64) ;;
232 amd64) ;;
233 powerpc) ;;
234 ppc64) ;;
235 ppc64le) ;;
236 powerpc64) ;;
237 powerpc64le) ;;
238 s390) NO_UNALIGNED_ACCESS=1 ;;
239 s390x) NO_UNALIGNED_ACCESS=1 ;;
240 arm*) NO_UNALIGNED_ACCESS=1 ;;
241 mips*) NO_UNALIGNED_ACCESS=1 ;;
242 tile*) NO_UNALIGNED_ACCESS=1 ;;
243 *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
244 esac
245 AC_MSG_RESULT([$host_cpu])
246
247 if test x$NO_UNALIGNED_ACCESS = x ; then
248 AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
249 fi
250
251 # Check for JNI header files if requested
252 AC_ARG_ENABLE([jni-interface],
253 [AS_HELP_STRING([--enable-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
254 [jni_interface=$withval],
255 [jni_interface=no]
256 )
257
258 AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
259
260
261 AC_ARG_ENABLE([java-agent-jul],
262 [AS_HELP_STRING([--enable-java-agent-jul],[build the LTTng UST Java agent with JUL support [default=no]])],
263 [java_agent_jul=$enableval],
264 [java_agent_jul=no]
265 )
266
267 AC_ARG_ENABLE([java-agent-log4j],
268 [AS_HELP_STRING([--enable-java-agent-log4j],[build the LTTng UST Java agent with Log4j support [default=no]])],
269 [java_agent_log4j=$enableval],
270 [java_agent_log4j=no]
271 )
272
273 AC_ARG_ENABLE([java-agent-all],
274 [AS_HELP_STRING([--enable-java-agent-all],[build the LTTng UST Java agent with all supported backends [default=no]])],
275 [java_agent_jul=$enableval
276 java_agent_log4j=$enableval],
277 [:]
278 )
279
280
281 AM_CONDITIONAL([BUILD_JAVA_AGENT], [test "x$java_agent_jul" = "xyes" || test "x$java_agent_log4j" = "xyes"])
282 AM_CONDITIONAL([BUILD_JAVA_AGENT_WITH_JUL], [test "x$java_agent_jul" = "xyes"])
283 AM_CONDITIONAL([BUILD_JAVA_AGENT_WITH_LOG4J], [test "x$java_agent_log4j" = "xyes"])
284
285 if test "x$jni_interface" = "xyes" || test "x$java_agent_jul" = "xyes" || test "x$java_agent_log4j" = "xyes"; then
286 AX_JAVA_OPTIONS
287 AX_PROG_JAVAC
288 AX_PROG_JAVA
289 AX_PROG_JAR
290
291 AX_JNI_INCLUDE_DIR
292 for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
293 do
294 CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
295 done
296
297 AX_PROG_JAVAH
298 fi
299
300 if test "x$java_agent_log4j" = "xyes"; then
301 AX_CHECK_CLASSPATH
302
303 AX_CHECK_CLASS(org.apache.log4j.Logger)
304
305 if test "x$ac_cv_class_org_apache_log4j_Logger" = "xno"; then
306 AC_MSG_ERROR([The UST Java agent support for log4j was requested but the Log4j classes were not found. Please specify the location of the Log4j jar via the Java CLASSPATH e.g: export CLASSPATH="/path/to/log4j.jar"])
307 fi
308 fi
309
310 # Option to build the python agent
311 AC_ARG_ENABLE([python-agent],
312 [AS_HELP_STRING([--enable-python-agent],[build the LTTng UST Python agent [default=no]])],
313 [python_agent=$enableval],
314 [:]
315 )
316 AM_CONDITIONAL([BUILD_PYTHON_AGENT], [test "x$python_agent" = "xyes"])
317
318 # sdt.h integration
319 AC_ARG_WITH([sdt],
320 [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
321 [with_sdt=$withval],
322 [with_sdt="no"]
323 )
324
325 AS_IF([test "x$with_sdt" = "xyes"],[
326 AC_MSG_CHECKING([STAP_PROBEV()])
327 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
328 #define SDT_USE_VARIADIC
329 #include <sys/sdt.h>
330 void fct(void)
331 {
332 STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
333 }
334 ]])],[
335 AC_MSG_RESULT([yes])
336 AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
337 ],[
338 AC_MSG_RESULT([no])
339 AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. Make sure it is installed, and up to date, or use CPPFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
340 ])
341 ])
342
343 AC_MSG_CHECKING([whether shared libraries are enabled])
344 AS_IF([test "x$enable_shared" = "xyes"],
345 [
346 AC_MSG_RESULT([yes])
347 ],
348 [
349 AC_MSG_RESULT([no])
350 AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
351 ])
352
353 AC_ARG_WITH([lttng-system-rundir],
354 AS_HELP_STRING([--with-lttng-system-rundir],
355 [Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
356 [lttng_system_rundir="$withval"],
357 [lttng_system_rundir="/var/run/lttng"])
358 AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
359 [LTTng system runtime directory])
360
361 AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
362 AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
363
364 AC_CONFIG_FILES([
365 Makefile
366 doc/Makefile
367 doc/examples/Makefile
368 include/Makefile
369 include/lttng/ust-version.h
370 snprintf/Makefile
371 libringbuffer/Makefile
372 liblttng-ust-comm/Makefile
373 liblttng-ust/Makefile
374 liblttng-ust-ctl/Makefile
375 liblttng-ust-fork/Makefile
376 liblttng-ust-dl/Makefile
377 liblttng-ust-java/Makefile
378 liblttng-ust-java-agent/Makefile
379 liblttng-ust-java-agent/java/Makefile
380 liblttng-ust-java-agent/jni/Makefile
381 liblttng-ust-java-agent/jni/jul/Makefile
382 liblttng-ust-java-agent/jni/log4j/Makefile
383 liblttng-ust-libc-wrapper/Makefile
384 liblttng-ust-cyg-profile/Makefile
385 liblttng-ust-python-agent/Makefile
386 tools/Makefile
387 tests/Makefile
388 tests/hello/Makefile
389 tests/hello.cxx/Makefile
390 tests/same_line_tracepoint/Makefile
391 tests/snprintf/Makefile
392 tests/benchmark/Makefile
393 tests/utils/Makefile
394 lttng-ust.pc
395 ])
396
397 AC_OUTPUT
398
399 AS_ECHO()
400 AS_ECHO("Version name: $version_name")
401 AS_ECHO("$version_description")
402
403 # Report on the configuration options
404 AS_ECHO()
405 AS_ECHO("LTTng-UST will be built with the following options:")
406
407 AS_ECHO()
408
409 AS_ECHO_N("Java agent (JUL support): ")
410 AS_IF([test "x$java_agent_jul" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
411
412 AS_ECHO_N("Java agent (Log4j support): ")
413 AS_IF([test "x$java_agent_log4j" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
414
415 AS_ECHO_N("JNI interface (JNI): ")
416 AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
417
418 AS_ECHO_N("Python agent: ")
419 AS_IF([test "x$python_agent" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
420
421 AS_ECHO_N("sdt.h integration: ")
422 AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
423
424 AS_ECHO()
425 AS_ECHO("Type 'make' to compile.")
426
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