Fix: don't build C++ example if a C++ compiler isn't available
[lttng-ust.git] / configure.ac
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1# -*- Autoconf -*-
2# Process this file with autoconf to produce a configure script.
3
0c9ad44b 4AC_INIT([lttng-ust],[2.1.0],[mathieu dot desnoyers at efficios dot com])
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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
41a2a9aa 8# This is the library version of liblttng-ust.
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9AC_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
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13# This is the library version of liblttng-ust-ctl, used internally by
14# liblttng-ust, lttng-sessiond, and lttng-consumerd.
15AC_SUBST([LTTNG_UST_CTL_LIBRARY_VERSION], [1:0:0])
16
55355fa5 17AC_CONFIG_AUX_DIR([config])
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18AC_CANONICAL_TARGET
19AC_CANONICAL_HOST
50f3dba0 20AC_CONFIG_MACRO_DIR([config])
76ceb8db 21AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
50f3dba0 22m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
4318ae1b 23AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
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24
25# Configuration options, which will be installed in the config.h
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26AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
27AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
02120ddf 28AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
23c8854a 29
b728d87e 30# Compute minor/major/patchlevel version numbers
23c8854a 31AC_PROG_SED
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32major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
33minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
34patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
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35AC_SUBST([MAJOR_VERSION], [$major_version])
36AC_SUBST([MINOR_VERSION], [$minor_version])
b728d87e 37AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
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38AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
39AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
b728d87e 40AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
161239e0 41
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42version_name="Basse Messe"
43version_description="Light coloured German ale whose style was named after the city Cologne (Koln) where it was first brewed. It is a rather simple beer with lightly fruity aromas and a delicate hoppy fragrance. The beer has a pronounced malty taste with a subtle bitter aftertaste"
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44AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
45AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
1304f3df 46
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47AC_PROG_GREP
48# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
49AC_ARG_ENABLE(libtool-linkdep-fixup,
50 AS_HELP_STRING([--disable-libtool-linkdep-fixup],
51 [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
52 libtool_fixup=$enableval,
53 libtool_fixup=yes)
54
55AS_IF([test "x$libtool_fixup" = "xyes"],
56 [
57 libtool_m4="$srcdir/config/libtool.m4"
58 libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"
59 AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
60 libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)
61 AS_IF([test $libtool_flag_pattern_count -ne 0],
62 [
63 AC_MSG_RESULT([$libtool_flag_pattern_count])
64 AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
65 sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4
66 ],
67 [
68 AC_MSG_RESULT([none])
69 ])
70 ])
71
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72AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
73
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74# Checks for programs.
75AC_PROG_CC
6b79f035 76AC_PROG_CXX
1304f3df 77AC_PROG_MAKE_SET
fa1c6efe 78LT_INIT
1304f3df 79
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80# rw_PROG_CXX_WORKS
81# Check whether the C++ compiler works.
82AC_CACHE_CHECK([whether the C++ compiler works],
83 [rw_cv_prog_cxx_works],
84 [AC_LANG_PUSH([C++])
85 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
86 [rw_cv_prog_cxx_works=yes],
87 [rw_cv_prog_cxx_works=no])
88 AC_LANG_POP([C++])])
89
90AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
91
1304f3df 92## Checks for libraries.
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93AC_CHECK_LIB([dl], [dlopen],
94[
95 have_libdl=yes
96],
97[
98 #libdl not found, check for dlopen in libc.
99 AC_CHECK_LIB([c], [dlopen],
100 [
101 have_libc_dl=yes
102 ],
103 [
104 AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
105 ])
106])
107AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
108AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
109
e26c8207 110AC_CHECK_LIB([pthread], [pthread_create])
1304f3df 111
2cb76594 112# Check for libuuid
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113AC_CHECK_LIB([uuid], [uuid_generate],
114[
115 AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBUUID], 1, [Has libuuid support.])
19d8b1b3 116 have_libuuid=yes
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117],
118[
119 # libuuid not found, check for uuid_create in libc.
120 AC_CHECK_LIB([c], [uuid_create],
121 [
122 AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
19d8b1b3 123 have_libc_uuid=yes
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124 ],
125 [
c6c454ab 126 AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
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127 ])
128]
2cb76594 129)
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130AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBUUID], [test "x$have_libuuid" = "xyes"])
131AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_UUID], [test "x$have_libc_uuid" = "xyes"])
2cb76594 132
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133# Checks for header files.
134#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
135
136# Checks for typedefs, structures, and compiler characteristics.
137AC_C_INLINE
138#AC_TYPE_INT16_T
139#AC_TYPE_INT32_T
140#AC_TYPE_INT64_T
141#AC_TYPE_INT8_T
142#AC_TYPE_PID_T
143#AC_TYPE_SIZE_T
144#AC_TYPE_SSIZE_T
145#AC_TYPE_UINT16_T
146#AC_TYPE_UINT32_T
147#AC_TYPE_UINT64_T
148#AC_TYPE_UINT8_T
149#AC_CHECK_TYPES([ptrdiff_t])
150
151# Checks for library functions.
152AC_FUNC_MALLOC
e9d165be 153AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
1304f3df 154
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155CFLAGS="-Wall $CFLAGS"
156
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157# URCU
158
159# urcu - check if we just find the headers it out of the box.
135987a5 160AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
cacb7fbe 161This error can also occur when the liburcu package's configure script has not been run.])])
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162
163# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
164# Part of Userspace RCU library 0.7.2 or better.
165AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
166liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
8624c549 167
b5a3dfa5 168AC_MSG_CHECKING([caa_likely()])
31b07350 169AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
b5a3dfa5 170#include <urcu/compiler.h>
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171void fct(void)
172{
173 if (caa_likely(1)) {
174 }
175}
727bb6cb 176]])],[
b5a3dfa5 177 AC_MSG_RESULT([yes])
727bb6cb 178],[
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179 AC_MSG_RESULT([no])
180 AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
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181
182])
b5a3dfa5 183
8624c549 184# urcu - check that URCU lib is available to compilation
cfa0520d 185AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
e3073410 186
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187# urcu - check that URCU lib is at least version 0.6
188AC_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.])])
e3073410 189
dca6e79f 190AC_MSG_CHECKING([host system alignment requirements])
8fb0c941 191case $host_cpu in
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192changequote(,)dnl
193 i[3456]86)
194changequote([,])dnl
8c98245f 195 ;;
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196 x86_64) ;;
197 amd64) ;;
198 powerpc) ;;
199 ppc64) ;;
200 powerpc64) ;;
201 s390) NO_UNALIGNED_ACCESS=1 ;;
202 s390x) NO_UNALIGNED_ACCESS=1 ;;
203 arm*) NO_UNALIGNED_ACCESS=1 ;;
204 mips*) NO_UNALIGNED_ACCESS=1;;
205 *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;
9441df61 206esac
ed452f03 207
2699970a 208if test x$NO_UNALIGNED_ACCESS = x ; then
562c813a 209AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
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210fi
211
2b6f8df9 212# Set compile flags to java include files if given
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213AC_ARG_WITH([java-jdk],
214 [AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])],
215 [JAVA_JDK=$withval],
216 [JAVA_JDK=""]
217)
218AS_IF([test $JAVA_JDK],[
219 AS_IF([test -d $JAVA_JDK],[
220 AC_MSG_RESULT([using Java includes in $JAVA_SDK])
221 SUBDIRS=`find $JAVA_JDK/include -type d`
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222 CPPFLAGS+=" "
223 CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
224 CPPFLAGS+=" "
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225 ],[
226 AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
227 ])
228])
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229
230# Check for JNI header files if requested
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231AC_ARG_WITH([jni-interface],
232 [AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
233 [jni_interface=$withval],
234 [jni_interface=no]
235)
2b6f8df9 236
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237AS_IF([test "x$jni_interface" = "xyes"],[
238 AC_CHECK_HEADERS([jni.h],[],[
239 AC_MSG_ERROR([missing jni.h
240Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
241Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
242 ])
243])
244AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
2b6f8df9 245
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246# sdt.h integration
247AC_ARG_WITH([sdt],
02120ddf 248 [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
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249 [with_sdt=$withval],
250 [with_sdt="no"]
251)
252
253AS_IF([test "x$with_sdt" = "xyes"],[
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254 AC_MSG_CHECKING([STAP_PROBEV()])
255 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
256 #define SDT_USE_VARIADIC
257 #include <sys/sdt.h>
258 void fct(void)
259 {
260 STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
261 }
262 ]])],[
263 AC_MSG_RESULT([yes])
562c813a 264 AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
4846fadc 265 ],[
491f30fe 266 AC_MSG_RESULT([no])
135987a5 267 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])
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268 ])
269])
270
36385b6e 271#currently disabled.
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272 #tests/hello2/Makefile
273 #tests/basic/Makefile
274 #tests/simple_include/Makefile
275 #tests/snprintf/Makefile
276 #tests/test-nevents/Makefile
277 #tests/test-libustinstr-malloc/Makefile
278 #tests/dlopen/Makefile
279 #tests/same_line_marker/Makefile
280 #tests/trace_event/Makefile
281 #tests/tracepoint/Makefile
282 #tests/tracepoint/benchmark/Makefile
283 #tests/register_test/Makefile
284 #tests/libustctl_function_#tests/Makefile
285 #tests/exit-fast/Makefile
286 #tests/basic_long/Makefile
287
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288AC_CONFIG_FILES([
289 Makefile
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290 doc/Makefile
291 doc/examples/Makefile
69400ac4 292 include/Makefile
b728d87e 293 include/lttng/ust-version.h
69400ac4 294 snprintf/Makefile
4931a13e 295 libringbuffer/Makefile
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296 liblttng-ust-comm/Makefile
297 liblttng-ust/Makefile
298 liblttng-ust-ctl/Makefile
299 liblttng-ust-fork/Makefile
300 liblttng-ust-java/Makefile
476037d9 301 liblttng-ust-libc-wrapper/Makefile
b25c5b37 302 tools/Makefile
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303 tests/Makefile
304 tests/hello/Makefile
246e1625 305 tests/hello-static-lib/Makefile
6b79f035 306 tests/hello.cxx/Makefile
38936cf4 307 tests/daemon/Makefile
580d134b 308 tests/demo/Makefile
36385b6e 309 tests/fork/Makefile
5810472c 310 tests/ust-basic-tracing/Makefile
f0966704 311 tests/ust-multi-test/Makefile
74a6d87b 312 lttng-ust.pc
55355fa5 313])
1f9eff07 314
1304f3df 315AC_OUTPUT
1f9eff07 316
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317AS_ECHO()
318AS_ECHO("Version name: $version_name")
319AS_ECHO("$version_description")
320
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321# Report on the configuration options
322AS_ECHO()
323AS_ECHO("LTTng-UST will be built with the following options:")
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324
325AS_ECHO()
326AS_ECHO_N("Java support (JNI): ")
327AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
328
329AS_ECHO_N("sdt.h integration: ")
330AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
331
332AS_ECHO()
333AS_ECHO("Type 'make' to compile.")
334
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