Fix: disable liblttng-ust-dl if dlinfo is not available in C library
[lttng-ust.git] / configure.ac
1 # -*- Autoconf -*-
2 # Process this file with autoconf to produce a configure script.
3
4 AC_INIT([lttng-ust],[2.4.0],[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
31 # Compute minor/major/patchlevel version numbers
32 AC_PROG_SED
33 major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
34 minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
35 patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
36 AC_SUBST([MAJOR_VERSION], [$major_version])
37 AC_SUBST([MINOR_VERSION], [$minor_version])
38 AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
39 AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
40 AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
41 AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
42
43 version_name="Époque Opaque"
44 version_description="The Époque Opaque is a black IPA from Trou du Diable brewery. The nose is eerily reminiscent of the coffee crisp candy from of our childhood. These strong mocha accents are present on the palate, which are quickly subdued by Japanese and Australian hops leading to a final state of satisfaction enjoyable for any fan of bitter beer."
45
46 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
47 AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
48
49 AC_PROG_GREP
50 # libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
51 AC_ARG_ENABLE(libtool-linkdep-fixup,
52 AS_HELP_STRING([--disable-libtool-linkdep-fixup],
53 [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
54 libtool_fixup=$enableval,
55 libtool_fixup=yes)
56
57 AS_IF([test "x$libtool_fixup" = "xyes"],
58 [
59 libtool_m4="$srcdir/config/libtool.m4"
60 libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"
61 AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
62 libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)
63 AS_IF([test $libtool_flag_pattern_count -ne 0],
64 [
65 AC_MSG_RESULT([$libtool_flag_pattern_count])
66 AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
67 sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4
68 ],
69 [
70 AC_MSG_RESULT([none])
71 ])
72 ])
73
74 AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
75
76 # Checks for programs.
77 AC_PROG_CC
78 AC_PROG_CXX
79 AC_PROG_MAKE_SET
80 LT_INIT
81
82 # rw_PROG_CXX_WORKS
83 # Check whether the C++ compiler works.
84 AC_CACHE_CHECK([whether the C++ compiler works],
85 [rw_cv_prog_cxx_works],
86 [AC_LANG_PUSH([C++])
87 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
88 [check_cxx_designated_initializers=yes],
89 [rw_cv_prog_cxx_works=no])
90 if test "$check_cxx_designated_initializers" = "yes"; then
91 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
92 struct foo { int a; int b; };
93 void fct(void)
94 {
95 struct foo f = { .a = 0, .b = 1 };
96 }
97 ]])],[
98 rw_cv_prog_cxx_works=yes
99 ],[
100 rw_cv_prog_cxx_works=no
101 ])
102 fi
103 AC_LANG_POP([C++])])
104
105 AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
106
107 ## Checks for libraries.
108 AC_CHECK_LIB([dl], [dlopen],
109 [
110 have_libdl=yes
111 ],
112 [
113 #libdl not found, check for dlopen in libc.
114 AC_CHECK_LIB([c], [dlopen],
115 [
116 have_libc_dl=yes
117 ],
118 [
119 AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
120 ])
121 ])
122 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
123 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
124
125 AC_CHECK_LIB([pthread], [pthread_create])
126
127 # Check for dlfcn.h
128 AC_CHECK_HEADER([dlfcn.h])
129 AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
130 [AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
131 [#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
132 #include <dlfcn.h>])
133 ],
134 [ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
135 AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
136
137 # Checks for header files.
138 #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
139
140 # Checks for typedefs, structures, and compiler characteristics.
141 AC_C_INLINE
142 #AC_TYPE_INT16_T
143 #AC_TYPE_INT32_T
144 #AC_TYPE_INT64_T
145 #AC_TYPE_INT8_T
146 #AC_TYPE_PID_T
147 #AC_TYPE_SIZE_T
148 #AC_TYPE_SSIZE_T
149 #AC_TYPE_UINT16_T
150 #AC_TYPE_UINT32_T
151 #AC_TYPE_UINT64_T
152 #AC_TYPE_UINT8_T
153 #AC_CHECK_TYPES([ptrdiff_t])
154
155 # Checks for library functions.
156 AC_FUNC_MALLOC
157 AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
158
159 CFLAGS="-Wall $CFLAGS"
160
161 # URCU
162
163 # urcu - check if we just find the headers it out of the box.
164 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
165 This error can also occur when the liburcu package's configure script has not been run.])])
166
167 # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
168 # Part of Userspace RCU library 0.7.2 or better.
169 AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
170 liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
171
172 AC_MSG_CHECKING([caa_likely()])
173 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
174 #include <urcu/compiler.h>
175 void fct(void)
176 {
177 if (caa_likely(1)) {
178 }
179 }
180 ]])],[
181 AC_MSG_RESULT([yes])
182 ],[
183 AC_MSG_RESULT([no])
184 AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
185
186 ])
187
188 # urcu - check that URCU lib is available to compilation
189 AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
190
191 # urcu - check that URCU lib is at least version 0.6
192 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.])])
193
194 AC_MSG_CHECKING([host system alignment requirements])
195 case $host_cpu in
196 changequote(,)dnl
197 i[3456]86)
198 changequote([,])dnl
199 ;;
200 x86_64) ;;
201 amd64) ;;
202 powerpc) ;;
203 ppc64) ;;
204 powerpc64) ;;
205 s390) NO_UNALIGNED_ACCESS=1 ;;
206 s390x) NO_UNALIGNED_ACCESS=1 ;;
207 arm*) NO_UNALIGNED_ACCESS=1 ;;
208 mips*) NO_UNALIGNED_ACCESS=1 ;;
209 tile*) NO_UNALIGNED_ACCESS=1 ;;
210 *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
211 esac
212 AC_MSG_RESULT([$host_cpu])
213
214 if test x$NO_UNALIGNED_ACCESS = x ; then
215 AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
216 fi
217
218 # Set compile flags to java include files if given
219 AC_ARG_WITH([java-jdk],
220 [AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
221 [JAVA_JDK=$withval],
222 [JAVA_JDK=""]
223 )
224 AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
225 AC_SUBST([JAVA_JDK])
226
227 AS_IF([test $JAVA_JDK],[
228 AS_IF([test -d $JAVA_JDK],[
229 AC_MSG_RESULT([using Java includes in $JAVA_SDK])
230 SUBDIRS=`find $JAVA_JDK/include -type d`
231 CPPFLAGS+=" "
232 CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
233 CPPFLAGS+=" "
234 ],[
235 AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
236 ])
237 ])
238
239 # Check for JNI header files if requested
240 AC_ARG_WITH([jni-interface],
241 [AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
242 [jni_interface=$withval],
243 [jni_interface=no]
244 )
245
246 AS_IF([test "x$jni_interface" = "xyes"],[
247 AC_CHECK_HEADERS([jni.h],[],[
248 AC_MSG_ERROR([missing jni.h
249 Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
250 Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
251 ])
252 ])
253 AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
254
255 # sdt.h integration
256 AC_ARG_WITH([sdt],
257 [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
258 [with_sdt=$withval],
259 [with_sdt="no"]
260 )
261
262 AS_IF([test "x$with_sdt" = "xyes"],[
263 AC_MSG_CHECKING([STAP_PROBEV()])
264 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
265 #define SDT_USE_VARIADIC
266 #include <sys/sdt.h>
267 void fct(void)
268 {
269 STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
270 }
271 ]])],[
272 AC_MSG_RESULT([yes])
273 AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
274 ],[
275 AC_MSG_RESULT([no])
276 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])
277 ])
278 ])
279
280 AC_MSG_CHECKING([whether shared libraries are enabled])
281 AS_IF([test "x$enable_shared" = "xyes"],
282 [
283 AC_MSG_RESULT([yes])
284 ],
285 [
286 AC_MSG_RESULT([no])
287 AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
288 ])
289
290 AC_ARG_WITH([lttng-system-rundir],
291 AS_HELP_STRING([--with-lttng-system-rundir],
292 [Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
293 [lttng_system_rundir="$withval"],
294 [lttng_system_rundir="/var/run/lttng"])
295 AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
296 [LTTng system runtime directory])
297
298 lttnglibjavadir="${libdir}/lttng/java"
299 AC_SUBST(lttnglibjavadir)
300
301 AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
302 AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
303
304 AC_CONFIG_FILES([
305 Makefile
306 doc/Makefile
307 doc/examples/Makefile
308 include/Makefile
309 include/lttng/ust-version.h
310 snprintf/Makefile
311 libringbuffer/Makefile
312 liblttng-ust-comm/Makefile
313 liblttng-ust/Makefile
314 liblttng-ust-ctl/Makefile
315 liblttng-ust-fork/Makefile
316 liblttng-ust-dl/Makefile
317 liblttng-ust-java/Makefile
318 liblttng-ust-jul/Makefile
319 liblttng-ust-libc-wrapper/Makefile
320 liblttng-ust-cyg-profile/Makefile
321 tools/Makefile
322 tests/Makefile
323 tests/hello/Makefile
324 tests/hello.cxx/Makefile
325 tests/same_line_tracepoint/Makefile
326 tests/snprintf/Makefile
327 tests/benchmark/Makefile
328 tests/utils/Makefile
329 tests/java-jul/Makefile
330 lttng-ust.pc
331 ])
332
333 AC_OUTPUT
334
335 AS_ECHO()
336 AS_ECHO("Version name: $version_name")
337 AS_ECHO("$version_description")
338
339 # Report on the configuration options
340 AS_ECHO()
341 AS_ECHO("LTTng-UST will be built with the following options:")
342
343 AS_ECHO()
344 AS_ECHO_N("Java support (JNI): ")
345 AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
346
347 AS_ECHO_N("sdt.h integration: ")
348 AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
349
350 AS_ECHO()
351 AS_ECHO("Type 'make' to compile.")
352
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