Fix: Override AM_PATH_PYTHON's default action-if-not-found
[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 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
23 AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
24
25 # Configuration options, which will be installed in the config.h
26 AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
27 AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
28 AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
29
30 # Compute minor/major/patchlevel version numbers
31 AC_PROG_SED
32 major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
33 minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
34 patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
35 AC_SUBST([MAJOR_VERSION], [$major_version])
36 AC_SUBST([MINOR_VERSION], [$minor_version])
37 AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
38 AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
39 AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
40 AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
41
42 version_name="Époque Opaque"
43 version_description="The Époque Opaque is a black IPA from Trou du Diable brewery. The nose is eerily reminiscent of the coffee crisp candy from of our childhood. These strong mocha accents are present on the palate, which are quickly subdued by Japanese and Australian hops leading to a final state of satisfaction enjoyable for any fan of bitter beer."
44
45 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
46 AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
47
48 AC_PROG_GREP
49 # libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
50 AC_ARG_ENABLE(libtool-linkdep-fixup,
51 AS_HELP_STRING([--disable-libtool-linkdep-fixup],
52 [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
53 libtool_fixup=$enableval,
54 libtool_fixup=yes)
55
56 AS_IF([test "x$libtool_fixup" = "xyes"],
57 [
58 libtool_m4="$srcdir/config/libtool.m4"
59 libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"
60 AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
61 libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)
62 AS_IF([test $libtool_flag_pattern_count -ne 0],
63 [
64 AC_MSG_RESULT([$libtool_flag_pattern_count])
65 AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
66 sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4
67 ],
68 [
69 AC_MSG_RESULT([none])
70 ])
71 ])
72
73 AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
74
75 # Checks for programs.
76 AC_PROG_CC
77 AC_PROG_CXX
78 AC_PROG_MAKE_SET
79 LT_INIT
80
81 # rw_PROG_CXX_WORKS
82 # Check whether the C++ compiler works.
83 AC_CACHE_CHECK([whether the C++ compiler works],
84 [rw_cv_prog_cxx_works],
85 [AC_LANG_PUSH([C++])
86 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
87 [check_cxx_designated_initializers=yes],
88 [rw_cv_prog_cxx_works=no])
89 if test "$check_cxx_designated_initializers" = "yes"; then
90 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
91 struct foo { int a; int b; };
92 void fct(void)
93 {
94 struct foo f = { .a = 0, .b = 1 };
95 }
96 ]])],[
97 rw_cv_prog_cxx_works=yes
98 ],[
99 rw_cv_prog_cxx_works=no
100 ])
101 fi
102 AC_LANG_POP([C++])])
103
104 AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
105
106 ## Checks for libraries.
107 AC_CHECK_LIB([dl], [dlopen],
108 [
109 have_libdl=yes
110 ],
111 [
112 #libdl not found, check for dlopen in libc.
113 AC_CHECK_LIB([c], [dlopen],
114 [
115 have_libc_dl=yes
116 ],
117 [
118 AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
119 ])
120 ])
121 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
122 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
123
124 AC_CHECK_LIB([pthread], [pthread_create])
125
126 # Checks for header files.
127 #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
128
129 # Checks for typedefs, structures, and compiler characteristics.
130 AC_C_INLINE
131 #AC_TYPE_INT16_T
132 #AC_TYPE_INT32_T
133 #AC_TYPE_INT64_T
134 #AC_TYPE_INT8_T
135 #AC_TYPE_PID_T
136 #AC_TYPE_SIZE_T
137 #AC_TYPE_SSIZE_T
138 #AC_TYPE_UINT16_T
139 #AC_TYPE_UINT32_T
140 #AC_TYPE_UINT64_T
141 #AC_TYPE_UINT8_T
142 #AC_CHECK_TYPES([ptrdiff_t])
143
144 # Checks for library functions.
145 AC_FUNC_MALLOC
146 AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
147
148 CFLAGS="-Wall $CFLAGS"
149
150 # URCU
151
152 # urcu - check if we just find the headers it out of the box.
153 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
154 This error can also occur when the liburcu package's configure script has not been run.])])
155
156 # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
157 # Part of Userspace RCU library 0.7.2 or better.
158 AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
159 liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
160
161 AC_MSG_CHECKING([caa_likely()])
162 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
163 #include <urcu/compiler.h>
164 void fct(void)
165 {
166 if (caa_likely(1)) {
167 }
168 }
169 ]])],[
170 AC_MSG_RESULT([yes])
171 ],[
172 AC_MSG_RESULT([no])
173 AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
174
175 ])
176
177 # urcu - check that URCU lib is available to compilation
178 AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
179
180 # urcu - check that URCU lib is at least version 0.6
181 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.])])
182
183 AC_MSG_CHECKING([host system alignment requirements])
184 case $host_cpu in
185 changequote(,)dnl
186 i[3456]86)
187 changequote([,])dnl
188 ;;
189 x86_64) ;;
190 amd64) ;;
191 powerpc) ;;
192 ppc64) ;;
193 powerpc64) ;;
194 s390) NO_UNALIGNED_ACCESS=1 ;;
195 s390x) NO_UNALIGNED_ACCESS=1 ;;
196 arm*) NO_UNALIGNED_ACCESS=1 ;;
197 mips*) NO_UNALIGNED_ACCESS=1 ;;
198 tile*) NO_UNALIGNED_ACCESS=1 ;;
199 *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
200 esac
201 AC_MSG_RESULT([$host_cpu])
202
203 if test x$NO_UNALIGNED_ACCESS = x ; then
204 AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
205 fi
206
207 # Set compile flags to java include files if given
208 AC_ARG_WITH([java-jdk],
209 [AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
210 [JAVA_JDK=$withval],
211 [JAVA_JDK=""]
212 )
213 AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
214 AC_SUBST([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 CPPFLAGS+=" "
221 CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
222 CPPFLAGS+=" "
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 CPPFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
266 ])
267 ])
268
269 AC_MSG_CHECKING([whether shared libraries are enabled])
270 AS_IF([test "x$enable_shared" = "xyes"],
271 [
272 AC_MSG_RESULT([yes])
273 ],
274 [
275 AC_MSG_RESULT([no])
276 AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
277 ])
278
279 AC_ARG_WITH([lttng-system-rundir],
280 AS_HELP_STRING([--with-lttng-system-rundir],
281 [Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
282 [lttng_system_rundir="$withval"],
283 [lttng_system_rundir="/var/run/lttng"])
284 AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
285 [LTTng system runtime directory])
286
287 lttnglibjavadir="${libdir}/lttng/java"
288 AC_SUBST(lttnglibjavadir)
289
290 AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
291 AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
292
293 AC_CONFIG_FILES([
294 Makefile
295 doc/Makefile
296 doc/examples/Makefile
297 include/Makefile
298 include/lttng/ust-version.h
299 snprintf/Makefile
300 libringbuffer/Makefile
301 liblttng-ust-comm/Makefile
302 liblttng-ust/Makefile
303 liblttng-ust-ctl/Makefile
304 liblttng-ust-fork/Makefile
305 liblttng-ust-dl/Makefile
306 liblttng-ust-java/Makefile
307 liblttng-ust-jul/Makefile
308 liblttng-ust-libc-wrapper/Makefile
309 liblttng-ust-cyg-profile/Makefile
310 tools/Makefile
311 tests/Makefile
312 tests/hello/Makefile
313 tests/hello.cxx/Makefile
314 tests/same_line_tracepoint/Makefile
315 tests/snprintf/Makefile
316 tests/benchmark/Makefile
317 tests/utils/Makefile
318 tests/java-jul/Makefile
319 lttng-ust.pc
320 ])
321
322 AC_OUTPUT
323
324 AS_ECHO()
325 AS_ECHO("Version name: $version_name")
326 AS_ECHO("$version_description")
327
328 # Report on the configuration options
329 AS_ECHO()
330 AS_ECHO("LTTng-UST will be built with the following options:")
331
332 AS_ECHO()
333 AS_ECHO_N("Java support (JNI): ")
334 AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
335
336 AS_ECHO_N("sdt.h integration: ")
337 AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
338
339 AS_ECHO()
340 AS_ECHO("Type 'make' to compile.")
341
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