Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

file 774 lines (673 sloc) 30.681 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774
dnl ##############################################################################
dnl # LIBZMQ_CONFIG_LIBTOOL #
dnl # Configure libtool. Requires AC_CANONICAL_HOST #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CONFIG_LIBTOOL], [{
    AC_REQUIRE([AC_CANONICAL_HOST])

    # Libtool configuration for different targets
    case "${host_os}" in
        *mingw32*|*cygwin*)
            # Disable static build by default
            AC_DISABLE_STATIC
        ;;
        *)
            # Everything else with static enabled
            AC_ENABLE_STATIC
        ;;
    esac
}])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_LANG_ICC([action-if-found], [action-if-not-found]) #
dnl # Check if the current language is compiled using ICC #
dnl # Adapted from http://software.intel.com/en-us/forums/showthread.php?t=67984 #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_ICC],
          [AC_CACHE_CHECK([whether we are using Intel _AC_LANG compiler],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler],
          [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[[#ifndef __INTEL_COMPILER
       error if not ICC
#endif
]])],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler="yes" ; $1],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler="no" ; $2])
])])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_LANG_SUN_STUDIO([action-if-found], [action-if-not-found]) #
dnl # Check if the current language is compiled using Sun Studio #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_SUN_STUDIO],
          [AC_CACHE_CHECK([whether we are using Sun Studio _AC_LANG compiler],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler],
          [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[[#if !defined(__SUNPRO_CC) && !defined(__SUNPRO_C)
       error if not sun studio
#endif
]])],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler="yes" ; $1],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler="no" ; $2])
])])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_LANG_CLANG([action-if-found], [action-if-not-found]) #
dnl # Check if the current language is compiled using clang #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_CLANG],
          [AC_CACHE_CHECK([whether we are using clang _AC_LANG compiler],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler],
          [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[[#ifndef __clang__
       error if not clang
#endif
]])],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler="yes" ; $1],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler="no" ; $2])
])])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_LANG_GCC4([action-if-found], [action-if-not-found]) #
dnl # Check if the current language is compiled using clang #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_GCC4],
          [AC_CACHE_CHECK([whether we are using gcc >= 4 _AC_LANG compiler],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler],
          [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[[#if (!defined __GNUC__ || __GNUC__ < 4)
       error if not gcc4 or higher
#endif
]])],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler="yes" ; $1],
          [libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler="no" ; $2])
])])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_DOC_BUILD #
dnl # Check whether to build documentation and install man-pages #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_DOC_BUILD], [{
    # Allow user to disable doc build
    AC_ARG_WITH([documentation], [AS_HELP_STRING([--without-documentation],
        [disable documentation build even if asciidoc and xmlto are present [default=no]])])

    if test "x$with_documentation" = "xno"; then
        libzmq_build_doc="no"
        libzmq_install_man="no"
    else
        # Determine whether or not documentation should be built and installed.
        libzmq_build_doc="yes"
        libzmq_install_man="yes"
        # Check for asciidoc and xmlto and don't build the docs if these are not installed.
        AC_CHECK_PROG(libzmq_have_asciidoc, asciidoc, yes, no)
        AC_CHECK_PROG(libzmq_have_xmlto, xmlto, yes, no)
        if test "x$libzmq_have_asciidoc" = "xno" -o "x$libzmq_have_xmlto" = "xno"; then
            libzmq_build_doc="no"
            # Tarballs built with 'make dist' ship with prebuilt documentation.
            if ! test -f doc/zmq.7; then
                libzmq_install_man="no"
                AC_MSG_WARN([You are building an unreleased version of 0MQ and asciidoc or xmlto are not installed.])
                AC_MSG_WARN([Documentation will not be built and manual pages will not be installed.])
            fi
        fi

        # Do not install man pages if on mingw
        if test "x$libzmq_on_mingw32" = "xyes"; then
            libzmq_install_man="no"
        fi
    fi

    AC_MSG_CHECKING([whether to build documentation])
    AC_MSG_RESULT([$libzmq_build_doc])

    AC_MSG_CHECKING([whether to install manpages])
    AC_MSG_RESULT([$libzmq_install_man])

    AM_CONDITIONAL(BUILD_DOC, test "x$libzmq_build_doc" = "xyes")
    AM_CONDITIONAL(INSTALL_MAN, test "x$libzmq_install_man" = "xyes")
}])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_LANG_COMPILER([action-if-found], [action-if-not-found]) #
dnl # Check that compiler for the current language actually works #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_COMPILER], [{
    # Test that compiler for the current language actually works
    AC_CACHE_CHECK([whether the _AC_LANG compiler works],
                   [libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works],
                   [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
                   [libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works="yes" ; $1],
                   [libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works="no" ; $2])
                   ])

    if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works" != "xyes"; then
        AC_MSG_ERROR([Unable to find a working _AC_LANG compiler])
    fi
}])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_COMPILERS #
dnl # Check compiler characteristics. This is so that we can AC_REQUIRE checks #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_COMPILERS], [{
    # For that the compiler works and try to come up with the type
    AC_LANG_PUSH([C])
    LIBZMQ_CHECK_LANG_COMPILER

    LIBZMQ_CHECK_LANG_ICC
    LIBZMQ_CHECK_LANG_SUN_STUDIO
    LIBZMQ_CHECK_LANG_CLANG
    LIBZMQ_CHECK_LANG_GCC4
    AC_LANG_POP([C])

    AC_LANG_PUSH(C++)
    LIBZMQ_CHECK_LANG_COMPILER

    LIBZMQ_CHECK_LANG_ICC
    LIBZMQ_CHECK_LANG_SUN_STUDIO
    LIBZMQ_CHECK_LANG_CLANG
    LIBZMQ_CHECK_LANG_GCC4
    AC_LANG_POP([C++])

    # Set GCC and GXX variables correctly
    if test "x$GCC" = "xyes"; then
        if test "xyes" = "x$libzmq_cv_c_intel_compiler"; then
            GCC="no"
        fi
    fi

    if test "x$GXX" = "xyes"; then
        if test "xyes" = "x$libzmq_cv_cxx_intel_compiler"; then
            GXX="no"
        fi
    fi
}])

dnl ############################################################################
dnl # LIBZMQ_CHECK_LANG_FLAG([flag], [action-if-found], [action-if-not-found]) #
dnl # Check if the compiler supports given flag. Works for C and C++ #
dnl # Sets libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_[FLAG]=yes/no #
dnl ############################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_FLAG], [{

    AC_REQUIRE([AC_PROG_GREP])

    AC_MSG_CHECKING([whether _AC_LANG compiler supports $1])

    libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag_save=$ac_[]_AC_LANG_ABBREV[]_werror_flag
    ac_[]_AC_LANG_ABBREV[]_werror_flag="yes"

    case "x[]_AC_LANG_ABBREV" in
        xc)
            libzmq_cv_check_lang_flag_save_CFLAGS="$CFLAGS"
            CFLAGS="$CFLAGS $1"
        ;;
        xcxx)
            libzmq_cv_check_lang_flag_save_CPPFLAGS="$CPPFLAGS"
            CPPFLAGS="$CPPFLAGS $1"
        ;;
        *)
            AC_MSG_WARN([testing compiler characteristic on an unknown language])
        ;;
    esac

    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
                      # This hack exist for ICC, which outputs unknown options as remarks
                      # Remarks are not turned into errors even with -Werror on
                      [if ($GREP 'ignoring unknown' conftest.err ||
                           $GREP 'not supported' conftest.err) >/dev/null 2>&1; then
                           eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)="no"
                       else
                           eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)="yes"
                       fi],
                      [eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)="no"])

    case "x[]_AC_LANG_ABBREV" in
        xc)
            CFLAGS="$libzmq_cv_check_lang_flag_save_CFLAGS"
        ;;
        xcxx)
            CPPFLAGS="$libzmq_cv_check_lang_flag_save_CPPFLAGS"
        ;;
        *)
            # nothing to restore
        ;;
    esac

    # Restore the werror flag
    ac_[]_AC_LANG_ABBREV[]_werror_flag=$libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag_save

    # Call the action as the flags are restored
    AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)[ = "xyes"],
          [AC_MSG_RESULT(yes) ; $2], [AC_MSG_RESULT(no) ; $3])

}])

dnl ####################################################################################
dnl # LIBZMQ_CHECK_LANG_FLAG_PREPEND([flag], [action-if-found], [action-if-not-found]) #
dnl # Check if the compiler supports given flag. Works for C and C++ #
dnl # This macro prepends the flag to CFLAGS or CPPFLAGS accordingly #
dnl # Sets libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_[FLAG]=yes/no #
dnl ####################################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_FLAG_PREPEND], [{
    LIBZMQ_CHECK_LANG_FLAG([$1])
    case "x[]_AC_LANG_ABBREV" in
       xc)
            AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)[ = "xyes"],
                  [CFLAGS="$1 $CFLAGS"; $2], $3)
       ;;
       xcxx)
            AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)[ = "xyes"],
                  [CPPFLAGS="$1 $CPPFLAGS"; $2], $3)
       ;;
    esac
}])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_ENABLE_DEBUG([action-if-found], [action-if-not-found]) #
dnl # Check whether to enable debug build and set compiler flags accordingly #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_ENABLE_DEBUG], [{

    # Require compiler specifics
    AC_REQUIRE([LIBZMQ_CHECK_COMPILERS])

    # This flag is checked also in
    AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug],
        [Enable debugging information [default=no]])])

    AC_MSG_CHECKING(whether to enable debugging information)

    if test "x$enable_debug" = "xyes"; then

        # GCC, clang and ICC
        if test "x$GCC" = "xyes" -o \
                "x$libzmq_cv_c_intel_compiler" = "xyes" -o \
                "x$libzmq_cv_c_clang_compiler" = "xyes"; then
            CFLAGS="-g -O0 "
        elif test "x$libzmq_cv_c_sun_studio_compiler" = "xyes"; then
            CFLAGS="-g0 "
        fi

        # GCC, clang and ICC
        if test "x$GXX" = "xyes" -o \
                "x$libzmq_cv_cxx_intel_compiler" = "xyes" -o \
                "x$libzmq_cv_cxx_clang_compiler" = "xyes"; then
            CPPFLAGS="-g -O0 "
            CXXFLAGS="-g -O0 "
        # Sun studio
        elif test "x$libzmq_cv_cxx_sun_studio_compiler" = "xyes"; then
            CPPFLAGS="-g0 "
            CXXFLAGS="-g0 "
        fi

        if test "x$ZMQ_ORIG_CFLAGS" != "xnone"; then
            CFLAGS="${CFLAGS} ${ZMQ_ORIG_CFLAGS}"
        fi
        if test "x$ZMQ_ORIG_CPPFLAGS" != "xnone"; then
            CPPFLAGS="${CPPFLAGS} ${ZMQ_ORIG_CPPFLAGS}"
        fi
        if test "x$ZMQ_ORIG_CXXFLAGS" != "xnone"; then
            CXXFLAGS="${CXXFLAGS} ${ZMQ_ORIG_CXXFLAGS}"
        fi
        AC_MSG_RESULT(yes)
    else
        AC_MSG_RESULT(no)
    fi
}])

dnl ##############################################################################
dnl # LIBZMQ_WITH_GCOV([action-if-found], [action-if-not-found]) #
dnl # Check whether to build with code coverage #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_WITH_GCOV], [{
    # Require compiler specifics
    AC_REQUIRE([LIBZMQ_CHECK_COMPILERS])

    AC_ARG_WITH(gcov, [AS_HELP_STRING([--with-gcov=yes/no],
                      [With GCC Code Coverage reporting.])],
                      [ZMQ_GCOV="$withval"])

    AC_MSG_CHECKING(whether to enable code coverage)

    if test "x$ZMQ_GCOV" = "xyes"; then

        if test "x$GXX" != "xyes"; then
            AC_MSG_ERROR([--with-gcov=yes works only with GCC])
        fi

        CFLAGS="-g -O0 -fprofile-arcs -ftest-coverage"
        if test "x${ZMQ_ORIG_CPPFLAGS}" != "xnone"; then
            CFLAGS="${CFLAGS} ${ZMQ_ORIG_CFLAGS}"
        fi

        CPPFLAGS="-g -O0 -fprofile-arcs -ftest-coverage"
        if test "x${ZMQ_ORIG_CPPFLAGS}" != "xnone"; then
            CPPFLAGS="${CPPFLAGS} ${ZMQ_ORIG_CPPFLAGS}"
        fi

        CXXFLAGS="-fprofile-arcs"
        if test "x${ZMQ_ORIG_CXXFLAGS}" != "xnone"; then
            CXXFLAGS="${CXXFLAGS} ${ZMQ_ORIG_CXXFLAGS}"
        fi

        LIBS="-lgcov ${LIBS}"
    fi

    AS_IF([test "x$ZMQ_GCOV" = "xyes"],
          [AC_MSG_RESULT(yes) ; $1], [AC_MSG_RESULT(no) ; $2])
}])

dnl ##############################################################################
dnl # LIBZMQ_CHECK_WITH_FLAG([flags], [macro]) #
dnl # Runs a normal autoconf check with compiler flags #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_CHECK_WITH_FLAG], [{
    libzmq_check_with_flag_save_CFLAGS="$CFLAGS"
    libzmq_check_with_flag_save_CPPFLAGS="$CPPFLAGS"

    CFLAGS="$CFLAGS $1"
    CPPFLAGS="$CPPFLAGS $1"

    # Execute the macro
    $2

    CFLAGS="$libzmq_check_with_flag_save_CFLAGS"
    CPPFLAGS="$libzmq_check_with_flag_save_CPPFLAGS"
}])

dnl ##############################################################################
dnl # LIBZMQ_LANG_WALL([action-if-found], [action-if-not-found]) #
dnl # How to define -Wall for the current compiler #
dnl # Sets libzmq_cv_[]_AC_LANG_ABBREV[]__wall_flag variable to found style #
dnl ##############################################################################
AC_DEFUN([LIBZMQ_LANG_WALL], [{

    AC_MSG_CHECKING([how to enable additional warnings for _AC_LANG compiler])

    libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag=""

    # C compilers
    case "x[]_AC_LANG_ABBREV" in
       xc)
            # GCC, clang and ICC
            if test "x$GCC" = "xyes" -o \
                    "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes" -o \
                    "x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="-Wall"
            # Sun studio
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="-v"
            fi
       ;;
       xcxx)
            # GCC, clang and ICC
            if test "x$GXX" = "xyes" -o \
                    "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes" -o \
                    "x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="-Wall"
            # Sun studio
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="+w"
            fi
       ;;
       *)
       ;;
    esac

    # Call the action
    if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag" != "x"; then
        AC_MSG_RESULT([$libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag])
        $1
    else
        AC_MSG_RESULT([not found])
        $2
    fi
}])

dnl ####################################################################
dnl # LIBZMQ_LANG_STRICT([action-if-found], [action-if-not-found]) #
dnl # Check how to turn on strict standards compliance #
dnl ####################################################################
AC_DEFUN([LIBZMQ_LANG_STRICT], [{
    AC_MSG_CHECKING([how to enable strict standards compliance in _AC_LANG compiler])

    libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag=""

    # C compilers
    case "x[]_AC_LANG_ABBREV" in
       xc)
            # GCC, clang and ICC
            if test "x$GCC" = "xyes" -o "x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag="-pedantic"
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag="-strict-ansi"
            # Sun studio
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag="-Xc"
            fi
       ;;
       xcxx)
            # GCC, clang and ICC
            if test "x$GXX" = "xyes" -o "x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag="-pedantic"
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag="-strict-ansi"
            # Sun studio
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag="-compat=5"
            fi
       ;;
       *)
       ;;
    esac

    # Call the action
    if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag" != "x"; then
        AC_MSG_RESULT([$libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag])
        $1
    else
        AC_MSG_RESULT([not found])
        $2
    fi
}])

dnl ########################################################################
dnl # LIBZMQ_LANG_WERROR([action-if-found], [action-if-not-found]) #
dnl # Check how to turn warnings to errors #
dnl ########################################################################
AC_DEFUN([LIBZMQ_LANG_WERROR], [{
    AC_MSG_CHECKING([how to turn warnings to errors in _AC_LANG compiler])

    libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag=""

    # C compilers
    case "x[]_AC_LANG_ABBREV" in
       xc)
            # GCC, clang and ICC
            if test "x$GCC" = "xyes" -o "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag="-Werror"
            # Sun studio
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag="-errwarn=%all"
            fi
       ;;
       xcxx)
            # GCC, clang and ICC
            if test "x$GXX" = "xyes" -o "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag="-Werror"
            # Sun studio
            elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
                libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag="-errwarn=%all"
            fi
       ;;
       *)
       ;;
    esac

    # Call the action
    if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag" != "x"; then
        AC_MSG_RESULT([$libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag])
        $1
    else
        AC_MSG_RESULT([not found])
        $2
    fi
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_LANG_PRAGMA([pragma], [action-if-found], [action-if-not-found]) #
dnl # Check if the compiler supports given pragma #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_PRAGMA], [{
    # Need to know how to enable all warnings
    LIBZMQ_LANG_WALL

    AC_MSG_CHECKING([whether _AC_LANG compiler supports pragma $1])

    # Save flags
    libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag_save=$ac_[]_AC_LANG_ABBREV[]_werror_flag
    ac_[]_AC_LANG_ABBREV[]_werror_flag="yes"

    if test "x[]_AC_LANG_ABBREV" = "xc"; then
        libzmq_cv_check_lang_pragma_save_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag"
    elif test "x[]_AC_LANG_ABBREV" = "xcxx"; then
        libzmq_cv_check_lang_pragma_save_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag"
    else
        AC_MSG_WARN([testing compiler characteristic on an unknown language])
    fi

    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[#pragma $1]])],
                      [eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_pragma_$1)="yes" ; AC_MSG_RESULT(yes)],
                      [eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_pragma_$1)="no" ; AC_MSG_RESULT(no)])

    if test "x[]_AC_LANG_ABBREV" = "xc"; then
        CFLAGS="$libzmq_cv_check_lang_pragma_save_CFLAGS"
    elif test "x[]_AC_LANG_ABBREV" = "xcxx"; then
        CPPFLAGS="$libzmq_cv_check_lang_pragma_save_CPPFLAGS"
    fi

    ac_[]_AC_LANG_ABBREV[]_werror_flag=$libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag_save

    # Call the action as the flags are restored
    AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_pragma_$1)[ = "xyes"],
          [$2], [$3])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_LANG_VISIBILITY([action-if-found], [action-if-not-found]) #
dnl # Check if the compiler supports dso visibility #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_LANG_VISIBILITY], [{

    libzmq_cv_[]_AC_LANG_ABBREV[]_visibility_flag=""

    if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes" -o \
            "x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes" -o \
            "x$libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler" = "xyes"; then
        LIBZMQ_CHECK_LANG_FLAG([-fvisibility=hidden],
                               [libzmq_cv_[]_AC_LANG_ABBREV[]_visibility_flag="-fvisibility=hidden"])
    elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
        LIBZMQ_CHECK_LANG_FLAG([-xldscope=hidden],
                               [libzmq_cv_[]_AC_LANG_ABBREV[]_visibility_flag="-xldscope=hidden"])
    fi

    AC_MSG_CHECKING(whether _AC_LANG compiler supports dso visibility)

    AS_IF([test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_visibility_flag" != "x"],
          [AC_MSG_RESULT(yes) ; $1], [AC_MSG_RESULT(no) ; $2])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_SOCK_CLOEXEC([action-if-found], [action-if-not-found]) #
dnl # Check if SOCK_CLOEXEC is supported #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_SOCK_CLOEXEC], [{
    AC_MSG_CHECKING(whether SOCK_CLOEXEC is supported)
    AC_TRY_RUN([/* SOCK_CLOEXEC test */
#include <sys/types.h>
#include <sys/socket.h>

int main (int argc, char *argv [])
{
    int s = socket (PF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
    return (s == -1);
}
    ],
    [AC_MSG_RESULT(yes) ; libzmq_cv_sock_cloexec="yes" ; $1],
    [AC_MSG_RESULT(no) ; libzmq_cv_sock_cloexec="no" ; $2],
    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_sock_cloexec="no"]
    )
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_POLLER_KQUEUE([action-if-found], [action-if-not-found]) #
dnl # Checks kqueue polling system #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_POLLER_KQUEUE], [{
    AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
        [
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
        ],
[[
struct kevent t_kev;
kqueue();
]]
        )],
        [libzmq_cv_have_poller_kqueue="yes" ; $1],
        [libzmq_cv_have_poller_kqueue="no" ; $2])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_POLLER_EPOLL([action-if-found], [action-if-not-found]) #
dnl # Checks epoll polling system #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_POLLER_EPOLL], [{
    AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
        [
#include <sys/epoll.h>
        ],
[[
struct epoll_event t_ev;
epoll_create(10);
]]
        )],
        [libzmq_cv_have_poller_epoll="yes" ; $1],
        [libzmq_cv_have_poller_epoll="no" ; $2])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_POLLER_DEVPOLL([action-if-found], [action-if-not-found]) #
dnl # Checks devpoll polling system #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_POLLER_DEVPOLL], [{
    AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
        [
#include <sys/devpoll.h>
        ],
[[
struct pollfd t_devpoll;
int fd = open("/dev/poll", O_RDWR);
]]
        )],
        [libzmq_cv_have_poller_devpoll="yes" ; $1],
        [libzmq_cv_have_poller_devpoll="no" ; $2])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_POLLER_POLL([action-if-found], [action-if-not-found]) #
dnl # Checks poll polling system #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_POLLER_POLL], [{
    AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
        [
#include <poll.h>
        ],
[[
struct pollfd t_poll;
poll(&t_poll, 1, 1);
]]
        )],
        [libzmq_cv_have_poller_poll="yes" ; $1],
        [libzmq_cv_have_poller_poll="no" ; $2])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_POLLER_SELECT([action-if-found], [action-if-not-found]) #
dnl # Checks select polling system #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_POLLER_SELECT], [{
    AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
        [
#ifdef ZMQ_HAVE_WINDOWS
#include "winsock2.h"
#elif defined ZMQ_HAVE_OPENVMS
#include <sys/types.h>
#include <sys/time.h>
#else
#include <sys/select.h>
#endif
        ],
[[
fd_set t_rfds;
struct timeval tv;

FD_ZERO(&t_rfds);
FD_SET(0, &t_rfds);

tv.tv_sec = 5;
tv.tv_usec = 0;

select(1, &t_rfds, NULL, NULL, &tv);
]]
        )],
        [libzmq_cv_have_poller_select="yes" ; $1],
        [libzmq_cv_have_poller_select="no" ; $2])
}])

dnl ################################################################################
dnl # LIBZMQ_CHECK_POLLER([action-if-found], [action-if-not-found]) #
dnl # Choose polling system #
dnl ################################################################################
AC_DEFUN([LIBZMQ_CHECK_POLLER], [{

    # Allow user to disable doc build
    AC_ARG_WITH([poller], [AS_HELP_STRING([--with-poller],
                [choose polling system manually. valid values are kqueue, epoll, devpoll, poll or select [default=autodetect]])])

    AC_MSG_CHECKING([for suitable polling system])

    case "${with_poller}" in
        kqueue|epoll|devpoll|poll|select)
            # User has chosen polling system
            libzmq_cv_poller="${with_poller}"
        ;;

        *)
            # try to find suitable polling system. the order of testing is:
            # kqueue -> epoll -> devpoll -> poll -> select
            for subsystem in kqueue epoll devpoll poll select; do

                case "${subsystem}" in
                    kqueue)
                        LIBZMQ_CHECK_POLLER_KQUEUE([libzmq_cv_poller=$subsystem], [])
                    ;;

                    epoll)
                        LIBZMQ_CHECK_POLLER_EPOLL([libzmq_cv_poller=$subsystem], [])
                    ;;

                    devpoll)
                        LIBZMQ_CHECK_POLLER_DEVPOLL([libzmq_cv_poller=$subsystem], [])
                    ;;

                    poll)
                        LIBZMQ_CHECK_POLLER_POLL([libzmq_cv_poller=$subsystem], [])
                    ;;

                    select)
                        LIBZMQ_CHECK_POLLER_SELECT([libzmq_cv_poller=$subsystem], [])
                    ;;
                esac

                if test "x${libzmq_cv_poller}" != "x"; then
                    break
                fi
            done
      ;;
    esac

    libzmq_cv_poller_flag=`echo "ZMQ_FORCE_${libzmq_cv_poller}" | tr a-z A-Z`

    AS_IF([test "x${libzmq_cv_poller}" != "x"],
          [AC_MSG_RESULT([using $libzmq_cv_poller]) ; $1], [AC_MSG_RESULT(no suitable polling system found) ; $2])
}])
Something went wrong with that request. Please try again.