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 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 # Checks for header files.
128 #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
129
130 # Checks for typedefs, structures, and compiler characteristics.
131 AC_C_INLINE
132 #AC_TYPE_INT16_T
133 #AC_TYPE_INT32_T
134 #AC_TYPE_INT64_T
135 #AC_TYPE_INT8_T
136 #AC_TYPE_PID_T
137 #AC_TYPE_SIZE_T
138 #AC_TYPE_SSIZE_T
139 #AC_TYPE_UINT16_T
140 #AC_TYPE_UINT32_T
141 #AC_TYPE_UINT64_T
142 #AC_TYPE_UINT8_T
143 #AC_CHECK_TYPES([ptrdiff_t])
144
145 # Checks for library functions.
146 AC_FUNC_MALLOC
147 AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
148
149 CFLAGS="-Wall $CFLAGS"
150
151 # URCU
152
153 # urcu - check if we just find the headers it out of the box.
154 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
155 This error can also occur when the liburcu package's configure script has not been run.])])
156
157 # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
158 # Part of Userspace RCU library 0.7.2 or better.
159 AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
160 liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
161
162 AC_MSG_CHECKING([caa_likely()])
163 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
164 #include <urcu/compiler.h>
165 void fct(void)
166 {
167 if (caa_likely(1)) {
168 }
169 }
170 ]])],[
171 AC_MSG_RESULT([yes])
172 ],[
173 AC_MSG_RESULT([no])
174 AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
175
176 ])
177
178 # urcu - check that URCU lib is available to compilation
179 AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
180
181 # urcu - check that URCU lib is at least version 0.6
182 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.])])
183
184 AC_MSG_CHECKING([host system alignment requirements])
185 case $host_cpu in
186 changequote(,)dnl
187 i[3456]86)
188 changequote([,])dnl
189 ;;
190 x86_64) ;;
191 amd64) ;;
192 powerpc) ;;
193 ppc64) ;;
194 powerpc64) ;;
195 s390) NO_UNALIGNED_ACCESS=1 ;;
196 s390x) NO_UNALIGNED_ACCESS=1 ;;
197 arm*) NO_UNALIGNED_ACCESS=1 ;;
198 mips*) NO_UNALIGNED_ACCESS=1 ;;
199 tile*) NO_UNALIGNED_ACCESS=1 ;;
200 *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
201 esac
202 AC_MSG_RESULT([$host_cpu])
203
204 if test x$NO_UNALIGNED_ACCESS = x ; then
205 AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
206 fi
207
208 # Set compile flags to java include files if given
209 AC_ARG_WITH([java-jdk],
210 [AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
211 [JAVA_JDK=$withval],
212 [JAVA_JDK=""]
213 )
214 AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path])
215 AC_SUBST([JAVA_JDK])
216
217 AS_IF([test $JAVA_JDK],[
218 AS_IF([test -d $JAVA_JDK],[
219 AC_MSG_RESULT([using Java includes in $JAVA_SDK])
220 SUBDIRS=`find $JAVA_JDK/include -type d`
221 CPPFLAGS+=" "
222 CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
223 CPPFLAGS+=" "
224 ],[
225 AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
226 ])
227 ])
228
229 # Check for JNI header files if requested
230 AC_ARG_WITH([jni-interface],
231 [AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
232 [jni_interface=$withval],
233 [jni_interface=no]
234 )
235
236 AS_IF([test "x$jni_interface" = "xyes"],[
237 AC_CHECK_HEADERS([jni.h],[],[
238 AC_MSG_ERROR([missing jni.h
239 Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
240 Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
241 ])
242 ])
243 AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
244
245 # sdt.h integration
246 AC_ARG_WITH([sdt],
247 [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
248 [with_sdt=$withval],
249 [with_sdt="no"]
250 )
251
252 AS_IF([test "x$with_sdt" = "xyes"],[
253 AC_MSG_CHECKING([STAP_PROBEV()])
254 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
255 #define SDT_USE_VARIADIC
256 #include <sys/sdt.h>
257 void fct(void)
258 {
259 STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
260 }
261 ]])],[
262 AC_MSG_RESULT([yes])
263 AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
264 ],[
265 AC_MSG_RESULT([no])
266 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])
267 ])
268 ])
269
270 AC_MSG_CHECKING([whether shared libraries are enabled])
271 AS_IF([test "x$enable_shared" = "xyes"],
272 [
273 AC_MSG_RESULT([yes])
274 ],
275 [
276 AC_MSG_RESULT([no])
277 AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
278 ])
279
280 AC_ARG_WITH([lttng-system-rundir],
281 AS_HELP_STRING([--with-lttng-system-rundir],
282 [Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
283 [lttng_system_rundir="$withval"],
284 [lttng_system_rundir="/var/run/lttng"])
285 AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
286 [LTTng system runtime directory])
287
288 lttnglibjavadir="${libdir}/lttng/java"
289 AC_SUBST(lttnglibjavadir)
290
291 AM_PATH_PYTHON([2.7],BUILD_GEN_TP_EXAMPLES=1,[:])
292 AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
293
294 AC_CONFIG_FILES([
295 Makefile
296 doc/Makefile
297 doc/examples/Makefile
298 include/Makefile
299 include/lttng/ust-version.h
300 snprintf/Makefile
301 libringbuffer/Makefile
302 liblttng-ust-comm/Makefile
303 liblttng-ust/Makefile
304 liblttng-ust-ctl/Makefile
305 liblttng-ust-fork/Makefile
306 liblttng-ust-dl/Makefile
307 liblttng-ust-java/Makefile
308 liblttng-ust-jul/Makefile
309 liblttng-ust-libc-wrapper/Makefile
310 liblttng-ust-cyg-profile/Makefile
311 tools/Makefile
312 tests/Makefile
313 tests/hello/Makefile
314 tests/hello.cxx/Makefile
315 tests/same_line_tracepoint/Makefile
316 tests/snprintf/Makefile
317 tests/benchmark/Makefile
318 tests/utils/Makefile
319 tests/java-jul/Makefile
320 lttng-ust.pc
321 ])
322
323 AC_OUTPUT
324
325 AS_ECHO()
326 AS_ECHO("Version name: $version_name")
327 AS_ECHO("$version_description")
328
329 # Report on the configuration options
330 AS_ECHO()
331 AS_ECHO("LTTng-UST will be built with the following options:")
332
333 AS_ECHO()
334 AS_ECHO_N("Java support (JNI): ")
335 AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
336
337 AS_ECHO_N("sdt.h integration: ")
338 AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
339
340 AS_ECHO()
341 AS_ECHO("Type 'make' to compile.")
342
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