configure.ac

   1 dnl SPDX-License-Identifier: LGPL-2.1-only
   2 dnl
   3 dnl Copyright (C) 2021 EfficiOS, Inc.
   4 dnl
   5 dnl Process this file with autoconf to produce a configure script.
   6
   7 # Project version information
   8 m4_define([urcu_version_major], [0])
   9 m4_define([urcu_version_minor], [13])
  10 m4_define([urcu_version_patch], [0])
  11 m4_define([urcu_version_dev_stage], [-pre])
  12 m4_define([urcu_version], urcu_version_major[.]urcu_version_minor[.]urcu_version_patch[]urcu_version_dev_stage)
  13
  14 # Library version information of "liburcu"
  15 # Following the numbering scheme proposed by libtool for the library version
  16 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
  17 m4_define([urcu_lib_version_current], [7])
  18 m4_define([urcu_lib_version_revision], [0])
  19 m4_define([urcu_lib_version_age], [1])
  20 m4_define([urcu_lib_version], urcu_lib_version_current[:]urcu_lib_version_revision[:]urcu_lib_version_age)
  21
  22
  23 ##                     ##
  24 ## Autoconf base setup ##
  25 ##                     ##
  26
  27 AC_PREREQ([2.69])
  28 AC_INIT([userspace-rcu],[urcu_version],[mathieu dot desnoyers at efficios dot com],[],[http://liburcu.org/])
  29
  30 AC_CONFIG_HEADERS([include/config.h include/urcu/config.h])
  31 AC_CONFIG_AUX_DIR([config])
  32 AC_CONFIG_MACRO_DIR([m4])
  33
  34 AC_CANONICAL_TARGET
  35 AC_CANONICAL_HOST
  36
  37
  38 ##                     ##
  39 ## Automake base setup ##
  40 ##                     ##
  41
  42 AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip nostdinc -Wall -Wno-portability -Werror])
  43 AM_MAINTAINER_MODE([enable])
  44
  45 # Enable silent rules by default
  46 AM_SILENT_RULES([yes])
  47
  48
  49 ##                               ##
  50 ## OS and Arch specific defaults ##
  51 ##                               ##
  52
  53 AS_CASE([$host],
  54   [*-cygwin*], [LT_NO_UNDEFINED="-no-undefined"]
  55 )
  56
  57
  58 ##                   ##
  59 ## C compiler checks ##
  60 ##                   ##
  61
  62 # Choose the C compiler
  63 AC_PROG_CC
  64 # AC_PROG_CC_STDC was merged in AC_PROG_CC in autoconf 2.70
  65 m4_version_prereq([2.70], [], [AC_PROG_CC_STDC])
  66
  67 # Make sure the C compiler supports C99
  68 AS_IF([test "$ac_cv_prog_cc_c99" = "no"], [AC_MSG_ERROR([The compiler does not support C99])])
  69
  70 # Enable available system extensions and LFS support
  71 AC_USE_SYSTEM_EXTENSIONS
  72 AC_SYS_LARGEFILE
  73
  74 # Make sure the C compiler supports __attribute__
  75 AX_C___ATTRIBUTE__
  76 AS_IF([test "x$ax_cv___attribute__" != "xyes"],
  77   [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
  78
  79 # Make sure we have pthread support
  80 AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])])
  81
  82 # Make sure the C compiler supports weak symbols
  83 AX_SYS_WEAK_ALIAS
  84 AS_IF([test "x$ax_cv_sys_weak_alias" = "xno"],
  85   [AC_MSG_ERROR([Your platform doesn't support weak symbols.])])
  86
  87 # Checks for typedefs, structures, and compiler characteristics.
  88 AC_C_INLINE
  89 AC_C_TYPEOF
  90 AC_TYPE_INT32_T
  91 AC_TYPE_PID_T
  92 AC_TYPE_SIZE_T
  93 AC_TYPE_SSIZE_T
  94 AC_TYPE_UINT16_T
  95 AC_TYPE_UINT32_T
  96 AC_TYPE_UINT64_T
  97 AC_TYPE_UINT8_T
  98
  99 # Detect warning flags supported by the C compiler and append them to
 100 # WARN_CFLAGS.
 101 m4_define([WARN_FLAGS_LIST], [ dnl
 102   -Wall dnl
 103   -Wextra dnl
 104   -Wmissing-prototypes dnl
 105   -Wmissing-declarations dnl
 106   -Wnull-dereference dnl
 107   -Wundef dnl
 108   -Wshadow dnl
 109   -Wjump-misses-init dnl
 110   -Wsuggest-attribute=format dnl
 111   -Wtautological-constant-out-of-range-compare dnl
 112   -Wnested-externs dnl
 113   -Wwrite-strings dnl
 114   -Wformat=2 dnl
 115   -Wstrict-aliasing dnl
 116   -Wmissing-noreturn dnl
 117   -Winit-self dnl
 118   -Wduplicated-cond dnl
 119   -Wduplicated-branches dnl
 120   -Wlogical-op dnl
 121   dnl
 122   dnl-Wredundant-decls dnl
 123   -Wno-null-dereference dnl
 124 ])
 125
 126 # Pass -Werror as an extra flag during the test: this is needed to make the
 127 # -Wunknown-warning-option diagnostic fatal with clang.
 128 AC_LANG_PUSH([C])
 129 AX_APPEND_COMPILE_FLAGS([WARN_FLAGS_LIST], [WARN_CFLAGS], [-Werror])
 130 AC_LANG_POP([C])
 131
 132
 133 ##               ##
 134 ## Header checks ##
 135 ##               ##
 136
 137 AC_HEADER_STDBOOL
 138 AC_CHECK_HEADERS([ \
 139         limits.h \
 140         stddef.h \
 141         sys/param.h \
 142         sys/time.h \
 143 ])
 144
 145
 146 ##                 ##
 147 ## Programs checks ##
 148 ##                 ##
 149
 150 AC_PROG_AWK
 151 AC_PROG_GREP
 152 AC_PROG_MAKE_SET
 153 AC_CHECK_PROGS(NPROC, [nproc gnproc])
 154 AC_CHECK_PROGS(GETCONF, [getconf])
 155 AS_IF([test "x$NPROC" != "x"],
 156         [NPROC_CMD=$NPROC],
 157         [AS_IF([test "x$GETCONF" != "x"],
 158                 [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"],
 159                 [NPROC_CMD="echo 1"]
 160         )]
 161 )
 162 AC_SUBST([NPROC_CMD], [$NPROC_CMD])
 163
 164 # Initialize and configure libtool
 165 LT_INIT
 166
 167
 168 ##                ##
 169 ## Library checks ##
 170 ##                ##
 171
 172 # Checks for library functions.
 173 AC_FUNC_MMAP
 174 AC_FUNC_FORK
 175 AC_CHECK_FUNCS([ \
 176         atexit \
 177         getcpuid \
 178         gettid \
 179         gettimeofday \
 180         memeset \
 181         memset \
 182         munmap \
 183         rand_r \
 184         sched_getcpu \
 185         sched_setaffinity \
 186         strerror \
 187         strtoul \
 188         sysconf \
 189 ])
 190
 191 # AC_FUNC_MALLOC causes problems when cross-compiling.
 192 #AC_FUNC_MALLOC
 193
 194 # Search for clock_gettime() in -lrt
 195 AC_SEARCH_LIBS([clock_gettime], [rt], [
 196   AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1], [clock_gettime() is detected.])
 197 ])
 198
 199
 200 ##                              ##
 201 ## Optionnal features selection ##
 202 ##                              ##
 203
 204 # Allow to fallback to FIXME if the membarrier syscall is unavailable on the
 205 # running kernel, when disabled, abort if the syscall is unavailable. Applies
 206 # to default and bulletproof flavors.
 207 # Enabled by default
 208 AE_FEATURE_DEFAULT_ENABLE
 209 AE_FEATURE([sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.])
 210
 211 # Use compiler Thread Local Storage, when disabled use pthread_getspecific() to emulate TLS.
 212 # Enabled by default
 213 AE_FEATURE_DEFAULT_ENABLE
 214 AE_FEATURE([compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.])
 215
 216 # smp-support configure option
 217 # Enabled by default
 218 AE_FEATURE_DEFAULT_ENABLE
 219 AE_FEATURE([smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems.])
 220
 221 # RCU debugging option
 222 # Disabled by default
 223 AE_FEATURE_DEFAULT_DISABLE
 224 AE_FEATURE([rcu-debug], [Enable internal debugging self-checks. Introduces a performance penalty.])
 225
 226 # rculfhash iterator debugging
 227 # Disabled by default
 228 AE_FEATURE_DEFAULT_DISABLE
 229 AE_FEATURE([cds-lfht-iter-debug], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.])
 230
 231
 232 ##                                                                    ##
 233 ## Set defines for optional features conditionnals in the source code ##
 234 ##                                                                    ##
 235
 236 AE_IF_FEATURE_DISABLED([sys-membarrier-fallback], [
 237   AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1], [Require the operating system to support the membarrier system call for default and bulletproof flavors.])
 238 ])
 239
 240 AE_IF_FEATURE_ENABLED([compiler-tls], [
 241   AC_DEFINE([CONFIG_RCU_TLS], [1], [Use compiler provided Thread Local Storage.])
 242 ])
 243
 244 AE_IF_FEATURE_ENABLED([smp-support], [
 245   AC_DEFINE([CONFIG_RCU_SMP], [1], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.])
 246 ])
 247
 248 AE_IF_FEATURE_ENABLED([rcu-debug], [
 249   AC_DEFINE([CONFIG_RCU_DEBUG], [1], [Enable internal debugging self-checks. Introduces a performance penalty.])
 250 ])
 251
 252 AE_IF_FEATURE_ENABLED([cds-lfht-iter-debug], [
 253   AC_DEFINE([CONFIG_CDS_LFHT_ITER_DEBUG], [1], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.])
 254 ])
 255
 256
 257 ##                                                                          ##
 258 ## Set automake variables for optional feature conditionnals in Makefile.am ##
 259 ##                                                                          ##
 260
 261 # Building the examples requires the shared libraries to be enabled
 262 AM_CONDITIONAL([ENABLE_EXAMPLES], AE_IS_FEATURE_ENABLED([shared]))
 263
 264
 265 ##                                             ##
 266 ## Substitute variables for use in Makefile.am ##
 267 ##                                             ##
 268
 269 # Library versions for libtool
 270 AC_SUBST([URCU_LIBRARY_VERSION], [urcu_lib_version])
 271
 272 AC_SUBST(LT_NO_UNDEFINED)
 273
 274 # The order in which the include folders are searched is important.
 275 # The top_builddir should always be searched first in the event that a build
 276 # time generated file is included.
 277 AM_CPPFLAGS="-I\$(top_builddir)/include -I\$(top_srcdir)/include -include config.h"
 278 AC_SUBST(AM_CPPFLAGS)
 279
 280 AM_CFLAGS="$WARN_CFLAGS $PTHREAD_CFLAGS"
 281 AC_SUBST(AM_CFLAGS)
 282
 283
 284 ##                                     ##
 285 ## Output files generated by configure ##
 286 ##                                     ##
 287
 288 AC_CONFIG_FILES([
 289         Makefile
 290         doc/Makefile
 291         doc/examples/Makefile
 292         include/Makefile
 293         src/Makefile
 294         tests/Makefile
 295         tests/common/Makefile
 296         tests/unit/Makefile
 297         tests/benchmark/Makefile
 298         tests/regression/Makefile
 299         tests/utils/Makefile
 300         src/liburcu.pc
 301         src/liburcu-bp.pc
 302         src/liburcu-cds.pc
 303         src/liburcu-qsbr.pc
 304         src/liburcu-mb.pc
 305         src/liburcu-signal.pc
 306 ])
 307
 308 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_global.tap])
 309 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_percpu.tap])
 310 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_perthread.tap])
 311 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_global.tap])
 312 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_percpu.tap])
 313 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_perthread.tap])
 314 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_global.tap])
 315 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_percpu.tap])
 316 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_perthread.tap])
 317 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_global.tap])
 318 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_percpu.tap])
 319 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_perthread.tap])
 320 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_global.tap])
 321 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_percpu.tap])
 322 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_perthread.tap])
 323 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_global.tap])
 324 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_percpu.tap])
 325 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_perthread.tap])
 326 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_global.tap])
 327 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_percpu.tap])
 328 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_perthread.tap])
 329 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_global.tap])
 330 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_percpu.tap])
 331 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_perthread.tap])
 332 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_global.tap])
 333 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap])
 334 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap])
 335 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_global.tap])
 336 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap])
 337 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap])
 338 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_global.tap])
 339 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap])
 340 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap])
 341 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_global.tap])
 342 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap])
 343 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap])
 344 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_global.tap])
 345 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap])
 346 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap])
 347 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_global.tap])
 348 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap])
 349 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap])
 350 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_global.tap])
 351 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap])
 352 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap])
 353 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_global.tap])
 354 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap])
 355 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap])
 356 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_global.tap])
 357 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_percpu.tap])
 358 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_perthread.tap])
 359 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_global.tap])
 360 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_percpu.tap])
 361 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_perthread.tap])
 362 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_global.tap])
 363 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_percpu.tap])
 364 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_perthread.tap])
 365 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_global.tap])
 366 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_percpu.tap])
 367 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_perthread.tap])
 368
 369
 370 AC_OUTPUT
 371
 372 #
 373 # Mini-report on what will be built.
 374 #
 375
 376 PPRINT_INIT
 377 PPRINT_SET_INDENT(1)
 378 PPRINT_SET_TS(38)
 379
 380 AS_ECHO
 381 AS_ECHO("${PPRINT_COLOR_BLDBLU}Userspace-RCU $PACKAGE_VERSION${PPRINT_COLOR_RST}")
 382 AS_ECHO
 383
 384 PPRINT_SUBTITLE([Features])
 385
 386 PPRINT_PROP_STRING([Target architecture], $host_cpu)
 387
 388 # SMP support enabled/disabled
 389 AE_IS_FEATURE_ENABLED([smp-support]) && value=1 || value=0
 390 PPRINT_PROP_BOOL([SMP support], $value)
 391
 392 # TLS
 393 AE_IS_FEATURE_ENABLED([compiler-tls]) && value="compiler TLS" || value="pthread_getspecific()"
 394 PPRINT_PROP_STRING([Thread Local Storage (TLS)], [$value])
 395
 396 # clock_gettime() available
 397 test "x$ac_cv_search_function_clock_gettime" != "xno" && value=1 || value=0
 398 PPRINT_PROP_BOOL([clock_gettime()], $value)
 399
 400 # Require membarrier
 401 AE_IS_FEATURE_ENABLED([sys-membarrier-fallback]) && value=0 || value=1
 402 PPRINT_PROP_BOOL([Require membarrier], $value)
 403
 404 # RCU debug enabled/disabled
 405 AE_IS_FEATURE_ENABLED([rcu-debug]) && value=1 || value=0
 406 PPRINT_PROP_BOOL([Internal debugging], $value)
 407
 408 # rculfhash iterator debug enabled/disabled
 409 AE_IS_FEATURE_ENABLED([cds-lfht-iter-debug]) && value=1 || value=0
 410 PPRINT_PROP_BOOL([Lock-free HT iterator debugging], $value)
 411
 412 PPRINT_PROP_BOOL([Multi-flavor support], 1)
 413
 414 report_bindir="`eval eval echo $bindir`"
 415 report_libdir="`eval eval echo $libdir`"
 416
 417 # Print the bindir and libdir this 'make install' will install into.
 418 AS_ECHO
 419 PPRINT_SUBTITLE([Install directories])
 420 PPRINT_PROP_STRING([Binaries], [$report_bindir])
 421 PPRINT_PROP_STRING([Libraries], [$report_libdir])
 422