mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-13 10:52:56 +01:00
583 lines
24 KiB
Plaintext
583 lines
24 KiB
Plaintext
dnl ##############################################################################
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dnl # LIBZMQ_CONFIG_LIBTOOL #
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dnl # Configure libtool. Requires AC_CANONICAL_HOST #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CONFIG_LIBTOOL], [{
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AC_REQUIRE([AC_CANONICAL_HOST])
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# Libtool configuration for different targets
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case "${host_os}" in
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*mingw32*|*cygwin*)
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# Disable static build by default
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AC_DISABLE_STATIC
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;;
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*)
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# Everything else with static enabled
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AC_ENABLE_STATIC
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;;
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esac
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_LANG_ICC([action-if-found], [action-if-not-found]) #
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dnl # Check if the current language is compiled using ICC #
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dnl # Adapted from http://software.intel.com/en-us/forums/showthread.php?t=67984 #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_ICC],
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[AC_CACHE_CHECK([whether we are using Intel _AC_LANG compiler],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler],
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[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
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[[#ifndef __INTEL_COMPILER
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error if not ICC
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#endif
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]])],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler="yes" ; $1],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler="no" ; $2])
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])])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_LANG_SUN_STUDIO([action-if-found], [action-if-not-found]) #
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dnl # Check if the current language is compiled using Sun Studio #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_SUN_STUDIO],
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[AC_CACHE_CHECK([whether we are using Sun Studio _AC_LANG compiler],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler],
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[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
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[[#if !defined(__SUNPRO_CC) && !defined(__SUNPRO_C)
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error if not sun studio
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#endif
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]])],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler="yes" ; $1],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler="no" ; $2])
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])])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_LANG_CLANG([action-if-found], [action-if-not-found]) #
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dnl # Check if the current language is compiled using clang #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_CLANG],
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[AC_CACHE_CHECK([whether we are using clang _AC_LANG compiler],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler],
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[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
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[[#ifndef __clang__
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error if not clang
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#endif
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]])],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler="yes" ; $1],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler="no" ; $2])
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])])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_LANG_GCC4([action-if-found], [action-if-not-found]) #
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dnl # Check if the current language is compiled using clang #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_GCC4],
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[AC_CACHE_CHECK([whether we are using gcc >= 4 _AC_LANG compiler],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler],
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[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
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[[#if (!defined __GNUC__ || __GNUC__ < 4)
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error if not gcc4 or higher
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#endif
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]])],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler="yes" ; $1],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_gcc4_compiler="no" ; $2])
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])])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_DOC_BUILD #
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dnl # Check whether to build documentation and install man-pages #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_DOC_BUILD], [{
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# Allow user to disable doc build
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AC_ARG_WITH([documentation], [AS_HELP_STRING([--without-documentation],
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[disable documentation build even if asciidoc and xmlto are present [default=no]])])
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if test "x$with_documentation" = "xno"; then
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libzmq_build_doc="no"
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libzmq_install_man="no"
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else
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# Determine whether or not documentation should be built and installed.
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libzmq_build_doc="yes"
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libzmq_install_man="yes"
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# Check for asciidoc and xmlto and don't build the docs if these are not installed.
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AC_CHECK_PROG(libzmq_have_asciidoc, asciidoc, yes, no)
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AC_CHECK_PROG(libzmq_have_xmlto, xmlto, yes, no)
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if test "x$libzmq_have_asciidoc" = "xno" -o "x$libzmq_have_xmlto" = "xno"; then
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libzmq_build_doc="no"
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# Tarballs built with 'make dist' ship with prebuilt documentation.
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if ! test -f doc/zmq.7; then
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libzmq_install_man="no"
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AC_MSG_WARN([You are building an unreleased version of 0MQ and asciidoc or xmlto are not installed.])
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AC_MSG_WARN([Documentation will not be built and manual pages will not be installed.])
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fi
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fi
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# Do not install man pages if on mingw
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if test "x$libzmq_on_mingw32" = "xyes"; then
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libzmq_install_man="no"
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fi
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fi
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AC_MSG_CHECKING([whether to build documentation])
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AC_MSG_RESULT([$libzmq_build_doc])
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AC_MSG_CHECKING([whether to install manpages])
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AC_MSG_RESULT([$libzmq_install_man])
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AM_CONDITIONAL(BUILD_DOC, test "x$libzmq_build_doc" = "xyes")
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AM_CONDITIONAL(INSTALL_MAN, test "x$libzmq_install_man" = "xyes")
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_LANG_COMPILER([action-if-found], [action-if-not-found]) #
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dnl # Check that compiler for the current language actually works #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_COMPILER], [{
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# Test that compiler for the current language actually works
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AC_CACHE_CHECK([whether the _AC_LANG compiler works],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works],
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[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works="yes" ; $1],
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[libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works="no" ; $2])
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])
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if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_compiler_works" != "xyes"; then
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AC_MSG_ERROR([Unable to find a working _AC_LANG compiler])
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fi
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_COMPILERS #
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dnl # Check compiler characteristics. This is so that we can AC_REQUIRE checks #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_COMPILERS], [{
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# For that the compiler works and try to come up with the type
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AC_LANG_PUSH([C])
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LIBZMQ_CHECK_LANG_COMPILER
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LIBZMQ_CHECK_LANG_ICC
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LIBZMQ_CHECK_LANG_SUN_STUDIO
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LIBZMQ_CHECK_LANG_CLANG
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LIBZMQ_CHECK_LANG_GCC4
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AC_LANG_POP([C])
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AC_LANG_PUSH(C++)
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LIBZMQ_CHECK_LANG_COMPILER
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LIBZMQ_CHECK_LANG_ICC
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LIBZMQ_CHECK_LANG_SUN_STUDIO
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LIBZMQ_CHECK_LANG_CLANG
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LIBZMQ_CHECK_LANG_GCC4
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AC_LANG_POP([C++])
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# Set GCC and GXX variables correctly
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if test "x$GCC" = "xyes"; then
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if test "xyes" = "x$libzmq_cv_c_intel_compiler"; then
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GCC="no"
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fi
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fi
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if test "x$GXX" = "xyes"; then
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if test "xyes" = "x$libzmq_cv_cxx_intel_compiler"; then
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GXX="no"
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fi
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fi
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}])
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dnl ############################################################################
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dnl # LIBZMQ_CHECK_LANG_FLAG([flag], [action-if-found], [action-if-not-found]) #
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dnl # Check if the compiler supports given flag. Works for C and C++ #
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dnl # Sets libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_[FLAG]=yes/no #
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dnl ############################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_FLAG], [{
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AC_REQUIRE([AC_PROG_GREP])
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AC_MSG_CHECKING([whether _AC_LANG compiler supports $1])
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libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag_save=$ac_[]_AC_LANG_ABBREV[]_werror_flag
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ac_[]_AC_LANG_ABBREV[]_werror_flag="yes"
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case "x[]_AC_LANG_ABBREV" in
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xc)
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libzmq_cv_check_lang_flag_save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $1"
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;;
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xcxx)
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libzmq_cv_check_lang_flag_save_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS $1"
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;;
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*)
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AC_MSG_WARN([testing compiler characteristic on an unknown language])
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;;
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esac
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
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# This hack exist for ICC, which outputs unknown options as remarks
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# Remarks are not turned into errors even with -Werror on
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[if ($GREP 'ignoring unknown' conftest.err ||
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$GREP 'not supported' conftest.err) >/dev/null 2>&1; then
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eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)="no"
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else
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eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)="yes"
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fi],
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[eval AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)="no"])
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case "x[]_AC_LANG_ABBREV" in
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xc)
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CFLAGS="$libzmq_cv_check_lang_flag_save_CFLAGS"
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;;
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xcxx)
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CPPFLAGS="$libzmq_cv_check_lang_flag_save_CPPFLAGS"
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;;
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*)
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# nothing to restore
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;;
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esac
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# Restore the werror flag
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ac_[]_AC_LANG_ABBREV[]_werror_flag=$libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag_save
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# Call the action as the flags are restored
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AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)[ = "xyes"],
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[AC_MSG_RESULT(yes) ; $2], [AC_MSG_RESULT(no) ; $3])
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}])
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dnl ####################################################################################
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dnl # LIBZMQ_CHECK_LANG_FLAG_PREPEND([flag], [action-if-found], [action-if-not-found]) #
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dnl # Check if the compiler supports given flag. Works for C and C++ #
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dnl # This macro prepends the flag to CFLAGS or CPPFLAGS accordingly #
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dnl # Sets libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_[FLAG]=yes/no #
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dnl ####################################################################################
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AC_DEFUN([LIBZMQ_CHECK_LANG_FLAG_PREPEND], [{
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LIBZMQ_CHECK_LANG_FLAG([$1])
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case "x[]_AC_LANG_ABBREV" in
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xc)
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AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)[ = "xyes"],
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[CFLAGS="$1 $CFLAGS"; $2], $3)
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;;
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xcxx)
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AS_IF([eval test x$]AS_TR_SH(libzmq_cv_[]_AC_LANG_ABBREV[]_supports_flag_$1)[ = "xyes"],
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[CPPFLAGS="$1 $CPPFLAGS"; $2], $3)
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;;
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esac
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_ENABLE_DEBUG([action-if-found], [action-if-not-found]) #
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dnl # Check whether to enable debug build and set compiler flags accordingly #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_ENABLE_DEBUG], [{
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# Require compiler specifics
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AC_REQUIRE([LIBZMQ_CHECK_COMPILERS])
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# This flag is checked also in
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AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug],
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[Enable debugging information [default=no]])])
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AC_MSG_CHECKING(whether to enable debugging information)
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if test "x$enable_debug" = "xyes"; then
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# GCC, clang and ICC
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if test "x$GCC" = "xyes" -o \
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"x$libzmq_cv_c_intel_compiler" = "xyes" -o \
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"x$libzmq_cv_c_clang_compiler" = "xyes"; then
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CFLAGS="-g -O0 "
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elif test "x$libzmq_cv_c_sun_studio_compiler" = "xyes"; then
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CFLAGS="-g0 "
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fi
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# GCC, clang and ICC
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if test "x$GXX" = "xyes" -o \
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"x$libzmq_cv_cxx_intel_compiler" = "xyes" -o \
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"x$libzmq_cv_cxx_clang_compiler" = "xyes"; then
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CPPFLAGS="-g -O0 "
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CXXFLAGS="-g -O0 "
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# Sun studio
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elif test "x$libzmq_cv_cxx_sun_studio_compiler" = "xyes"; then
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CPPFLAGS="-g0 "
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CXXFLAGS="-g0 "
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fi
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if test "x$ZMQ_ORIG_CFLAGS" != "xnone"; then
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CFLAGS="${CFLAGS} ${ZMQ_ORIG_CFLAGS}"
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fi
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if test "x$ZMQ_ORIG_CPPFLAGS" != "xnone"; then
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CPPFLAGS="${CPPFLAGS} ${ZMQ_ORIG_CPPFLAGS}"
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fi
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if test "x$ZMQ_ORIG_CXXFLAGS" != "xnone"; then
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CXXFLAGS="${CXXFLAGS} ${ZMQ_ORIG_CXXFLAGS}"
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fi
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_WITH_GCOV([action-if-found], [action-if-not-found]) #
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dnl # Check whether to build with code coverage #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_WITH_GCOV], [{
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# Require compiler specifics
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AC_REQUIRE([LIBZMQ_CHECK_COMPILERS])
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AC_ARG_WITH(gcov, [AS_HELP_STRING([--with-gcov=yes/no],
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[With GCC Code Coverage reporting.])],
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[ZMQ_GCOV="$withval"])
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AC_MSG_CHECKING(whether to enable code coverage)
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if test "x$ZMQ_GCOV" = "xyes"; then
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if test "x$GXX" != "xyes"; then
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AC_MSG_ERROR([--with-gcov=yes works only with GCC])
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fi
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CFLAGS="-g -O0 -fprofile-arcs -ftest-coverage"
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if test "x${ZMQ_ORIG_CPPFLAGS}" != "xnone"; then
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CFLAGS="${CFLAGS} ${ZMQ_ORIG_CFLAGS}"
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fi
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CPPFLAGS="-g -O0 -fprofile-arcs -ftest-coverage"
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if test "x${ZMQ_ORIG_CPPFLAGS}" != "xnone"; then
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CPPFLAGS="${CPPFLAGS} ${ZMQ_ORIG_CPPFLAGS}"
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fi
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CXXFLAGS="-fprofile-arcs"
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if test "x${ZMQ_ORIG_CXXFLAGS}" != "xnone"; then
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CXXFLAGS="${CXXFLAGS} ${ZMQ_ORIG_CXXFLAGS}"
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fi
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LIBS="-lgcov ${LIBS}"
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fi
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AS_IF([test "x$ZMQ_GCOV" = "xyes"],
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[AC_MSG_RESULT(yes) ; $1], [AC_MSG_RESULT(no) ; $2])
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_CHECK_WITH_FLAG([flags], [macro]) #
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dnl # Runs a normal autoconf check with compiler flags #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_CHECK_WITH_FLAG], [{
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libzmq_check_with_flag_save_CFLAGS="$CFLAGS"
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libzmq_check_with_flag_save_CPPFLAGS="$CPPFLAGS"
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CFLAGS="$CFLAGS $1"
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CPPFLAGS="$CPPFLAGS $1"
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# Execute the macro
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$2
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CFLAGS="$libzmq_check_with_flag_save_CFLAGS"
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CPPFLAGS="$libzmq_check_with_flag_save_CPPFLAGS"
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}])
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dnl ##############################################################################
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dnl # LIBZMQ_LANG_WALL([action-if-found], [action-if-not-found]) #
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dnl # How to define -Wall for the current compiler #
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dnl # Sets libzmq_cv_[]_AC_LANG_ABBREV[]__wall_flag variable to found style #
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dnl ##############################################################################
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AC_DEFUN([LIBZMQ_LANG_WALL], [{
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AC_MSG_CHECKING([how to enable additional warnings for _AC_LANG compiler])
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libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag=""
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# C compilers
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case "x[]_AC_LANG_ABBREV" in
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xc)
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# GCC, clang and ICC
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if test "x$GCC" = "xyes" -o \
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"x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes" -o \
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"x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes"; then
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libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="-Wall"
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# Sun studio
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elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
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libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="-v"
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fi
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;;
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xcxx)
|
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# GCC, clang and ICC
|
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if test "x$GXX" = "xyes" -o \
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"x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes" -o \
|
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"x$libzmq_cv_[]_AC_LANG_ABBREV[]_clang_compiler" = "xyes"; then
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libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="-Wall"
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# Sun studio
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elif test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
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libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag="+w"
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fi
|
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;;
|
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*)
|
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;;
|
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esac
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|
|
# Call the action
|
|
if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag" != "x"; then
|
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AC_MSG_RESULT([$libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag])
|
|
$1
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else
|
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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])
|
|
}])
|