configure.ac

   1 #
   2 # Copyright (C) 2010-2017 Red Hat, Inc.  All rights reserved.
   3 #
   4 # Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
   5 #          Federico Simoncelli <fsimon@kronosnet.org>
   6 #
   7 # This software licensed under GPL-2.0+, LGPL-2.0+
   8 #
   9
  10 #                                               -*- Autoconf -*-
  11 # Process this file with autoconf to produce a configure script.
  12 #
  13
  14 AC_PREREQ([2.63])
  15 AC_INIT([kronosnet],
  16         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
  17         [devel@lists.kronosnet.org])
  18 AC_USE_SYSTEM_EXTENSIONS
  19 AM_INIT_AUTOMAKE([1.11.1 dist-bzip2 dist-xz color-tests -Wno-portability subdir-objects])
  20 LT_PREREQ([2.2.6])
  21 LT_INIT
  22
  23 AC_CONFIG_MACRO_DIR([m4])
  24 AC_CONFIG_SRCDIR([kronosnetd/main.c])
  25 AC_CONFIG_HEADERS([config.h])
  26
  27 AC_CANONICAL_HOST
  28 AC_PROG_LIBTOOL
  29
  30 AC_LANG([C])
  31
  32 systemddir=${prefix}/lib/systemd/system
  33
  34 if test "$prefix" = "NONE"; then
  35         prefix="/usr"
  36         if test "$localstatedir" = "\${prefix}/var"; then
  37                 localstatedir="/var"
  38         fi
  39         if test "$sysconfdir" = "\${prefix}/etc"; then
  40                 sysconfdir="/etc"
  41         fi
  42         if test "$systemddir" = "NONE/lib/systemd/system"; then
  43                 systemddir=/lib/systemd/system
  44         fi
  45         if test "$libdir" = "\${exec_prefix}/lib"; then
  46                 if test -e /usr/lib64; then
  47                         libdir="/usr/lib64"
  48                 else
  49                         libdir="/usr/lib"
  50                 fi
  51         fi
  52 fi
  53
  54 # Checks for programs.
  55 if ! ${MAKE-make} --version /cannot/make/this >/dev/null 2>&1; then
  56         AC_MSG_ERROR(["you don't seem to have GNU make; it is required"])
  57 fi
  58
  59 AC_PROG_AWK
  60 AC_PROG_GREP
  61 AC_PROG_SED
  62 AC_PROG_CPP
  63 AC_PROG_CC
  64 AC_PROG_CC_C99
  65 if test "x$ac_cv_prog_cc_c99" = "xno"; then
  66         AC_MSG_ERROR(["C99 support is required"])
  67 fi
  68 AC_PROG_LN_S
  69 AC_PROG_INSTALL
  70 AC_PROG_MAKE_SET
  71 AC_PROG_CXX
  72 AC_PROG_RANLIB
  73 AC_CHECK_PROGS([PUBLICAN], [publican], [:])
  74 AC_CHECK_PROGS([PKGCONFIG], [pkg-config])
  75
  76 AC_ARG_ENABLE([libknet-sctp],
  77         [  --disable-libknet-sctp            : disable libknet SCTP support ],,
  78         [ enable_libknet_sctp="yes" ])
  79 AM_CONDITIONAL([BUILDSCTP], [test x$enable_libknet_sctp = xyes])
  80
  81 AC_ARG_ENABLE([crypto-all],
  82         [  --disable-crypto-all              : disable libknet all crypto modules support ],,
  83         [ enable_crypto_all="yes" ])
  84
  85 AC_ARG_ENABLE([crypto-nss],
  86         [  --disable-crypto-nss              : disable libknet nss support ],,
  87         [ enable_crypto_nss="$enable_crypto_all" ])
  88 AM_CONDITIONAL([BUILDCRYPTONSS], [test x$enable_crypto_nss = xyes])
  89
  90 AC_ARG_ENABLE([crypto-openssl],
  91         [  --disable-crypto-openssl          : disable libknet openssl support ],,
  92         [ enable_crypto_openssl="$enable_crypto_all" ])
  93 AM_CONDITIONAL([BUILDCRYPTOOPENSSL], [test x$enable_crypto_openssl = xyes])
  94
  95 AC_ARG_ENABLE([compress-all],
  96         [  --disable-compress-all            : disable libknet all compress modules support ],,
  97         [ enable_compress_all="yes" ])
  98
  99 AC_ARG_ENABLE([compress-zlib],
 100         [  --disable-compress-zlib           : disable libknet zlib support ],,
 101         [ enable_compress_zlib="$enable_compress_all" ])
 102 AM_CONDITIONAL([BUILDCOMPZLIB], [test x$enable_compress_zlib = xyes])
 103
 104 AC_ARG_ENABLE([compress-lz4],
 105         [  --disable-compress-lz4            : disable libknet lz4 support ],,
 106         [ enable_compress_lz4="$enable_compress_all" ])
 107 AM_CONDITIONAL([BUILDCOMPLZ4], [test x$enable_compress_lz4 = xyes])
 108
 109 AC_ARG_ENABLE([compress-lzo2],
 110         [  --disable-compress-lzo2           : disable libknet lzo2 support ],,
 111         [ enable_compress_lzo2="$enable_compress_all" ])
 112 AM_CONDITIONAL([BUILDCOMPLZO2], [test x$enable_compress_lzo2 = xyes])
 113
 114 AC_ARG_ENABLE([compress-lzma],
 115         [  --disable-compress-lzma           : disable libknet lzma support ],,
 116         [ enable_compress_lzma="$enable_compress_all" ])
 117 AM_CONDITIONAL([BUILDCOMPLZMA], [test x$enable_compress_lzma = xyes])
 118
 119 AC_ARG_ENABLE([compress-bzip2],
 120         [  --disable-compress-bzip2          : disable libknet bzip2 support ],,
 121         [ enable_compress_bzip2="$enable_compress_all" ])
 122 AM_CONDITIONAL([BUILDCOMPBZIP2], [test x$enable_compress_bzip2 = xyes])
 123
 124 AC_ARG_ENABLE([poc],
 125         [  --disable-poc                     : disable building poc code ],,
 126         [ enable_poc="yes" ])
 127 AM_CONDITIONAL([BUILD_POC], [test x$enable_poc = xyes])
 128
 129 AC_ARG_ENABLE([kronosnetd],
 130         [  --enable-kronosnetd               : Kronosnetd support ],,
 131         [ enable_kronosnetd="no" ])
 132 AM_CONDITIONAL([BUILD_KRONOSNETD], [test x$enable_kronosnetd = xyes])
 133
 134 AC_ARG_ENABLE([libtap],
 135         [  --enable-libtap                   : libtap support ],,
 136         [ enable_libtap="no" ])
 137
 138 if test "x$enable_kronosnetd" = xyes; then
 139         enable_libtap=yes
 140 fi
 141 AM_CONDITIONAL([BUILD_LIBTAP], [test x$enable_libtap = xyes])
 142
 143 ## local helper functions
 144 # this function checks if CC support options passed as
 145 # args. Global CFLAGS are ignored during this test.
 146 cc_supports_flag() {
 147         saveCPPFLAGS="$CPPFLAGS"
 148         CPPFLAGS="$@"
 149         if echo $CC | grep -q clang; then
 150                 CPPFLAGS="-Werror $CPPFLAGS"
 151         fi
 152         AC_MSG_CHECKING([whether $CC supports "$@"])
 153         AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
 154                           [RC=0; AC_MSG_RESULT([yes])],
 155                           [RC=1; AC_MSG_RESULT([no])])
 156         CPPFLAGS="$saveCPPFLAGS"
 157         return $RC
 158 }
 159
 160 # helper macro to check libs without adding them to LIBS
 161 check_lib_no_libs() {
 162         lib_no_libs_arg1=$1
 163         shift
 164         lib_no_libs_arg2=$1
 165         shift
 166         lib_no_libs_args=$@
 167         AC_CHECK_LIB([$lib_no_libs_arg1],
 168                      [$lib_no_libs_arg2],,,
 169                      [$lib_no_libs_args])
 170         LIBS=$ac_check_lib_save_LIBS
 171 }
 172
 173 # Checks for C features
 174 AC_C_INLINE
 175
 176 # Checks for libraries.
 177 AC_CHECK_LIB([pthread], [pthread_create], [AC_SUBST([pthread_LIBS], [-lpthread])], [AC_MSG_ERROR([kronosnet requires pthread library])])
 178 AC_CHECK_LIB([m], [ceil], [AC_SUBST([m_LIBS], [-lm])], [AC_MSG_ERROR([kronosnet requires m library])])
 179 AC_CHECK_LIB([rt], [clock_gettime], [AC_SUBST([rt_LIBS], [-lrt])], [AC_MSG_ERROR([kronosnet requires rt library])])
 180
 181 AC_SEARCH_LIBS([dlopen], [dl dld], [AC_SUBST([dl_LIBS], [$ac_res])], [AC_MSG_ERROR([kronosnet requires dl library])])
 182
 183 # workaround pkg-config bootstrapping
 184 PKG_CHECK_MODULES([foobarbaz],[foobarbaz], [AC_MSG_NOTICE([bootstrapping pkg-config])], [AC_MSG_NOTICE([bootstrapping pkg-config])])
 185
 186 # crypto libraries checks
 187 if test "x$enable_crypto_nss" = xyes; then
 188         PKG_CHECK_MODULES([nss],[nss])
 189         AC_DEFINE_UNQUOTED([BUILDCRYPTONSS], [1], [Enable nss crypto])
 190 fi
 191
 192 if test "x$enable_crypto_openssl" = xyes; then
 193         PKG_CHECK_MODULES([openssl],[openssl])
 194         AC_DEFINE_UNQUOTED([BUILDCRYPTOOPENSSL], [1], [Enable openssl crypto])
 195 fi
 196
 197 # compress libraries checks
 198 if test "x$enable_compress_zlib" = xyes; then
 199         PKG_CHECK_MODULES([zlib], [zlib])
 200         AC_DEFINE_UNQUOTED([BUILDCOMPZLIB], [1], [Enable zlib compression])
 201 fi
 202 if test "x$enable_compress_lz4" = xyes; then
 203         PKG_CHECK_MODULES([liblz4], [liblz4])
 204         AC_DEFINE_UNQUOTED([BUILDCOMPLZ4], [1], [Enable lz4 compress])
 205 fi
 206 if test "x$enable_compress_lzo2" = xyes; then
 207         PKG_CHECK_MODULES([lzo2], [lzo2],,
 208                 [AC_CHECK_HEADERS([lzo/lzo1x.h],
 209                         [AC_CHECK_LIB([lzo2], [lzo1x_decompress_safe],
 210                                 [AC_SUBST([lzo2_LIBS], [-llzo2])])],
 211                                 [AC_MSG_ERROR(["missing required lzo/lzo1x.h header"])])])
 212         AC_DEFINE_UNQUOTED([BUILDCOMPLZO2], [1], [Enable lzo2 compress])
 213 fi
 214 if test "x$enable_compress_lzma" = xyes; then
 215         PKG_CHECK_MODULES([liblzma], [liblzma])
 216         AC_DEFINE_UNQUOTED([BUILDCOMPLZMA], [1], [Enable lzma compress])
 217 fi
 218 if test "x$enable_compress_bzip2" = xyes; then
 219         PKG_CHECK_MODULES([bzip2], [bzip2],,
 220                 [AC_CHECK_HEADERS([bzlib.h],
 221                         [AC_CHECK_LIB([bz2], [BZ2_bzBuffToBuffCompress],
 222                                 [AC_SUBST([bzip2_LIBS], [-lbz2])])],
 223                                 [AC_MSG_ERROR(["missing required bzlib.h"])])])
 224         AC_DEFINE_UNQUOTED([BUILDCOMPBZIP2], [1], [Enable bzip2 compress])
 225 fi
 226
 227 # Checks for header files.
 228 AC_CHECK_HEADERS([fcntl.h])
 229 AC_CHECK_HEADERS([stdlib.h])
 230 AC_CHECK_HEADERS([string.h])
 231 AC_CHECK_HEADERS([strings.h])
 232 AC_CHECK_HEADERS([sys/ioctl.h])
 233 AC_CHECK_HEADERS([syslog.h])
 234 AC_CHECK_HEADERS([unistd.h])
 235 AC_CHECK_HEADERS([netinet/in.h])
 236 AC_CHECK_HEADERS([sys/socket.h])
 237 AC_CHECK_HEADERS([arpa/inet.h])
 238 AC_CHECK_HEADERS([netdb.h])
 239 AC_CHECK_HEADERS([limits.h])
 240 AC_CHECK_HEADERS([stdint.h])
 241 AC_CHECK_HEADERS([sys/epoll.h])
 242
 243 if test "x$enable_libknet_sctp" = xyes; then
 244         AC_CHECK_HEADERS([netinet/sctp.h],, [AC_MSG_ERROR(["missing required SCTP headers"])])
 245 fi
 246
 247 # Checks for typedefs, structures, and compiler characteristics.
 248 AC_C_INLINE
 249 AC_TYPE_SIZE_T
 250 AC_TYPE_PID_T
 251 AC_TYPE_SSIZE_T
 252 AC_TYPE_UINT8_T
 253 AC_TYPE_UINT16_T
 254 AC_TYPE_UINT32_T
 255 AC_TYPE_UINT64_T
 256 AC_TYPE_INT32_T
 257
 258 # Checks for library functions.
 259 AC_FUNC_ALLOCA
 260 AC_FUNC_FORK
 261 AC_FUNC_MALLOC
 262 AC_FUNC_REALLOC
 263 AC_CHECK_FUNCS([memset])
 264 AC_CHECK_FUNCS([strdup])
 265 AC_CHECK_FUNCS([strerror])
 266 AC_CHECK_FUNCS([dup2])
 267 AC_CHECK_FUNCS([select])
 268 AC_CHECK_FUNCS([socket])
 269 AC_CHECK_FUNCS([inet_ntoa])
 270 AC_CHECK_FUNCS([memmove])
 271 AC_CHECK_FUNCS([strchr])
 272 AC_CHECK_FUNCS([atexit])
 273 AC_CHECK_FUNCS([ftruncate])
 274 AC_CHECK_FUNCS([strrchr])
 275 AC_CHECK_FUNCS([strstr])
 276 AC_CHECK_FUNCS([clock_gettime])
 277 AC_CHECK_FUNCS([strcasecmp])
 278 AC_CHECK_FUNCS([kevent])
 279 # if neither sys/epoll.h nor kevent are present, we should fail.
 280
 281 if test "x$ac_cv_header_sys_epoll_h" = xno && test "x$ac_cv_func_kevent" = xno; then
 282         AC_MSG_ERROR([Both epoll and kevent unavailable on this OS])
 283 fi
 284
 285 if test "x$ac_cv_header_sys_epoll_h" = xyes && test "x$ac_cv_func_kevent" = xyes; then
 286         AC_MSG_ERROR([Both epoll and kevent available on this OS, please contact the maintainers to fix the code])
 287 fi
 288
 289 # checks (for kronosnetd)
 290 if test "x$enable_kronosnetd" = xyes; then
 291         AC_CHECK_HEADERS([security/pam_appl.h],
 292                          [AC_CHECK_LIB([pam], [pam_start])],
 293                          [AC_MSG_ERROR([Unable to find LinuxPAM devel files])])
 294
 295         AC_CHECK_HEADERS([security/pam_misc.h],
 296                          [AC_CHECK_LIB([pam_misc], [misc_conv])],
 297                          [AC_MSG_ERROR([Unable to find LinuxPAM MISC devel files])])
 298
 299         PKG_CHECK_MODULES([libqb], [libqb])
 300
 301         AC_CHECK_LIB([qb], [qb_log_thread_priority_set],
 302                      [have_qb_log_thread_priority_set="yes"],
 303                      [have_qb_log_thread_priority_set="no"])
 304         if test "x${have_qb_log_thread_priority_set}" = xyes; then
 305                 AC_DEFINE_UNQUOTED([HAVE_QB_LOG_THREAD_PRIORITY_SET], [1], [have qb_log_thread_priority_set])
 306         fi
 307 fi
 308
 309 # local options
 310 AC_ARG_ENABLE([debug],
 311         [  --enable-debug          enable debug build. ],
 312         [ default="no" ])
 313
 314 AC_ARG_ENABLE([publicandocs],
 315         [  --enable-publicandocs   enable docs build. ],
 316         [ default="no" ])
 317
 318 AC_ARG_WITH([initdefaultdir],
 319         [  --with-initdefaultdir   : path to /etc/sysconfig/.. or /etc/default dir. ],
 320         [ INITDEFAULTDIR="$withval" ],
 321         [ INITDEFAULTDIR="$sysconfdir/default" ])
 322
 323 AC_ARG_WITH([initddir],
 324         [  --with-initddir=DIR     : path to init script directory. ],
 325         [ INITDDIR="$withval" ],
 326         [ INITDDIR="$sysconfdir/init.d" ])
 327
 328 AC_ARG_WITH([systemddir],
 329         [  --with-systemddir=DIR   : path to systemd unit files directory. ],
 330         [ SYSTEMDDIR="$withval" ],
 331         [ SYSTEMDDIR="$systemddir" ])
 332
 333 AC_ARG_WITH([syslogfacility],
 334         [  --with-syslogfacility=FACILITY
 335                           default syslog facility. ],
 336         [ SYSLOGFACILITY="$withval" ],
 337         [ SYSLOGFACILITY="LOG_DAEMON" ])
 338
 339 AC_ARG_WITH([sysloglevel],
 340         [  --with-sysloglevel=LEVEL
 341                           default syslog level. ],
 342         [ SYSLOGLEVEL="$withval" ],
 343         [ SYSLOGLEVEL="LOG_INFO" ])
 344
 345 AC_ARG_WITH([defaultadmgroup],
 346         [  --with-defaultadmgroup=GROUP
 347                           define PAM group. Users part of this group will be
 348                           allowed to configure kronosnet. Others will only
 349                           receive read-only rights. ],
 350         [ DEFAULTADMGROUP="$withval" ],
 351         [ DEFAULTADMGROUP="kronosnetadm" ])
 352
 353 ## random vars
 354 LOGDIR=${localstatedir}/log/
 355 RUNDIR=${localstatedir}/run/
 356 DEFAULT_CONFIG_DIR=${sysconfdir}/kronosnet
 357
 358 ## do subst
 359
 360 AM_CONDITIONAL([BUILD_DOCS], [test "x${enable_publicandocs}" = xyes])
 361 AM_CONDITIONAL([DEBUG], [test "x${enable_debug}" = xyes])
 362
 363 AC_SUBST([DEFAULT_CONFIG_DIR])
 364 AC_SUBST([INITDEFAULTDIR])
 365 AC_SUBST([INITDDIR])
 366 AC_SUBST([SYSTEMDDIR])
 367 AC_SUBST([LOGDIR])
 368 AC_SUBST([DEFAULTADMGROUP])
 369
 370 AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_DIR],
 371                    ["$(eval echo ${DEFAULT_CONFIG_DIR})"],
 372                    [Default config directory])
 373
 374 AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_FILE],
 375                    ["$(eval echo ${DEFAULT_CONFIG_DIR}/kronosnetd.conf)"],
 376                    [Default config file])
 377
 378 AC_DEFINE_UNQUOTED([LOGDIR],
 379                    ["$(eval echo ${LOGDIR})"],
 380                    [Default logging directory])
 381
 382 AC_DEFINE_UNQUOTED([DEFAULT_LOG_FILE],
 383                    ["$(eval echo ${LOGDIR}/kronosnetd.log)"],
 384                    [Default log file])
 385
 386 AC_DEFINE_UNQUOTED([RUNDIR],
 387                    ["$(eval echo ${RUNDIR})"],
 388                    [Default run directory])
 389
 390 AC_DEFINE_UNQUOTED([SYSLOGFACILITY],
 391                    [$(eval echo ${SYSLOGFACILITY})],
 392                    [Default syslog facility])
 393
 394 AC_DEFINE_UNQUOTED([SYSLOGLEVEL],
 395                    [$(eval echo ${SYSLOGLEVEL})],
 396                    [Default syslog level])
 397
 398 AC_DEFINE_UNQUOTED([DEFAULTADMGROUP],
 399                    ["$(eval echo ${DEFAULTADMGROUP})"],
 400                    [Default admin group])
 401
 402 ## *FLAGS handling
 403 ENV_CFLAGS="$CFLAGS"
 404 ENV_CPPFLAGS="$CPPFLAGS"
 405 ENV_LDFLAGS="$LDFLAGS"
 406
 407 # debug build stuff
 408 if test "x${enable_debug}" = xyes; then
 409         AC_DEFINE_UNQUOTED([DEBUG], [1], [Compiling Debugging code])
 410         OPT_CFLAGS="-O0"
 411 else
 412         OPT_CFLAGS="-O3"
 413 fi
 414
 415 # gdb flags
 416 if test "x${GCC}" = xyes; then
 417         GDB_FLAGS="-ggdb3"
 418 else
 419         GDB_FLAGS="-g"
 420 fi
 421
 422 # extra warnings
 423 EXTRA_WARNINGS=""
 424
 425 WARNLIST="
 426         all
 427         extra
 428         unused
 429         shadow
 430         missing-prototypes
 431         missing-declarations
 432         suggest-attribute=noreturn
 433         suggest-attribute=format
 434         strict-prototypes
 435         declaration-after-statement
 436         pointer-arith
 437         write-strings
 438         cast-align
 439         bad-function-cast
 440         missing-format-attribute
 441         float-equal
 442         format=2
 443         format-signedness
 444         format-security
 445         format-nonliteral
 446         no-long-long
 447         unsigned-char
 448         gnu89-inline
 449         no-strict-aliasing
 450         error
 451         address
 452         cpp
 453         overflow
 454         parentheses
 455         sequence-point
 456         switch
 457         shift-overflow=2
 458         overlength-strings
 459         retundent-decls
 460         init-self
 461         uninitialized
 462         unused-but-set-variable
 463         unused-function
 464         unused-result
 465         unused-value
 466         unused-variable
 467         unknown-pragmas
 468         no-unused-parameter
 469         "
 470
 471 for j in $WARNLIST; do
 472         if cc_supports_flag -W$j; then
 473                 EXTRA_WARNINGS="$EXTRA_WARNINGS -W$j";
 474         fi
 475 done
 476
 477 CFLAGS="$ENV_CFLAGS $lt_prog_compiler_pic $OPT_CFLAGS $GDB_FLAGS \
 478         $EXTRA_WARNINGS $WERROR_CFLAGS"
 479 CPPFLAGS="$ENV_CPPFLAGS"
 480 LDFLAGS="$ENV_LDFLAGS $lt_prog_compiler_pic -Wl,--as-needed"
 481
 482 AC_CONFIG_FILES([
 483                 Makefile
 484                 init/Makefile
 485                 libtap/Makefile
 486                 libtap/libtap.pc
 487                 kronosnetd/Makefile
 488                 kronosnetd/kronosnetd.logrotate
 489                 libknet/Makefile
 490                 libknet/libknet.pc
 491                 libknet/tests/Makefile
 492                 docs/Makefile
 493                 poc-code/Makefile
 494                 poc-code/iov-hash/Makefile
 495                 poc-code/access-list/Makefile
 496                 ])
 497
 498 AC_OUTPUT