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libzmq/configure.in
Martin Sustrik 0df86c41b5 rt library required on all platforms 
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-12-03 13:25:44 +01:00

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ(2.61)
#
# The 0MQ version number is extracted from include/zmq.h using
# the version.sh script. Hence, it should be updated there.
# The version in git should reflect the *next* version planned.
#
AC_INIT([zeromq],[m4_esyscmd([./version.sh])],[zeromq-dev@lists.zeromq.org])
AC_CONFIG_AUX_DIR(config)
AC_CONFIG_MACRO_DIR(config)
AM_CONFIG_HEADER(src/platform.hpp)
AM_INIT_AUTOMAKE(tar-ustar dist-zip foreign)
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
# This lets us use PACKAGE_VERSION in Makefiles
AC_SUBST(PACKAGE_VERSION)
# Libtool -version-info (ABI version)
#
# Don't change this unless you know exactly what you're doing and have read and
# understand:
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
#
# Changes:
#
# ZeroMQ versions prior to 2.1.0 use 0:0:0 (undefined)
# ZeroMQ versions 2.1.x: 1:0:0 (ABI version 1)
# ZeroMQ version 3.0: 2:0:0 (ABI version 2)
# ZeroMQ version 3.1: 3:0:0 (ABI version 3)
#
# libzmq -version-info current:revision:age
LTVER="3:0:0"
AC_SUBST(LTVER)
# Take a copy of original flags
ZMQ_ORIG_CFLAGS="${CFLAGS:-none}"
ZMQ_ORIG_CPPFLAGS="${CPPFLAGS:-none}"
ZMQ_ORIG_CXXFLAGS="${CXXFLAGS:-none}"
# Checks for programs.
AC_PROG_CC
AC_PROG_CC_C99
AC_PROG_CXX
AM_PROG_CC_C_O
AC_PROG_SED
AC_PROG_AWK
# Libtool configuration for different targets. See acinclude.m4
AC_ARG_VAR([XMLTO], [Path to xmlto command])
AC_PATH_PROG([XMLTO], [xmlto])
AC_ARG_VAR([ASCIIDOC], [Path to asciidoc command])
AC_PATH_PROG([ASCIIDOC], [asciidoc])
LIBZMQ_CONFIG_LIBTOOL
AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
# Check whether to build a with debug symbols
LIBZMQ_CHECK_ENABLE_DEBUG
# Check wheter to enable code coverage
LIBZMQ_WITH_GCOV
# Checks for libraries.
AC_CHECK_LIB([pthread], [pthread_create])
AC_CHECK_LIB([rt], [clock_gettime])
# Set pedantic
libzmq_pedantic="yes"
# By default compiling with -Werror except OSX.
libzmq_werror="yes"
# By default use DSO visibility
libzmq_dso_visibility="yes"
# Whether we are on mingw or not.
libzmq_on_mingw32="no"
# Set some default features required by 0MQ code.
CPPFLAGS="-D_REENTRANT -D_THREAD_SAFE $CPPFLAGS"
# For host type checks
AC_CANONICAL_HOST
# OS-specific tests
case "${host_os}" in
*linux*)
# Define on Linux to enable all library features. Define if using a gnu compiler
if test "x$GXX" = "xyes"; then
CPPFLAGS="-D_GNU_SOURCE $CPPFLAGS"
fi
AC_DEFINE(ZMQ_HAVE_LINUX, 1, [Have Linux OS])
case "${host_os}" in
*android*)
AC_DEFINE(ZMQ_HAVE_ANDROID, 1, [Have Android OS])
;;
esac
;;
*solaris*)
# Define on Solaris to enable all library features
CPPFLAGS="-D_PTHREADS $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_SOLARIS, 1, [Have Solaris OS])
AC_CHECK_LIB(socket, socket)
AC_CHECK_LIB(nsl, gethostbyname)
AC_MSG_CHECKING([whether atomic operations can be used])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#include <atomic.h>]],
[[uint32_t value;
atomic_cas_32 (&value, 0, 0);
return 0;]])],
[solaris_has_atomic=yes],
[solaris_has_atomic=no])
AC_MSG_RESULT([$solaris_has_atomic])
# Solaris 8 does not have atomic operations exported to user space.
if test "x$solaris_has_atomic" = "xno"; then
AC_DEFINE(ZMQ_FORCE_MUTEXES, 1, [Force to use mutexes])
fi
;;
*freebsd*)
# Define on FreeBSD to enable all library features
CPPFLAGS="-D__BSD_VISIBLE $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_FREEBSD, 1, [Have FreeBSD OS])
;;
*darwin*)
# Define on Darwin to enable all library features
CPPFLAGS="-D_DARWIN_C_SOURCE $CPPFLAGS"
libzmq_pedantic="no"
libzmq_werror="no"
AC_DEFINE(ZMQ_HAVE_OSX, 1, [Have DarwinOSX OS])
AC_LANG_PUSH([C++])
LIBZMQ_CHECK_LANG_FLAG_PREPEND([-Wno-uninitialized])
AC_LANG_POP([C++])
;;
*netbsd*)
# Define on NetBSD to enable all library features
CPPFLAGS="-D_NETBSD_SOURCE $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_NETBSD, 1, [Have NetBSD OS])
# NetBSD 5.0 and newer provides atomic operations but we can
# only use these on systems where PR #42842 has been fixed so
# we must try and link a test program using C++.
libzmq_netbsd_has_atomic=no
AC_MSG_CHECKING([whether atomic operations can be used])
AC_LANG_PUSH([C++])
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <atomic.h>]],
[[uint32_t value;
atomic_cas_32 (&value, 0, 0);
return 0;]])],
[libzmq_netbsd_has_atomic=yes],
[libzmq_netbsd_has_atomic=no])
AC_LANG_POP([C++])
AC_MSG_RESULT([$libzmq_netbsd_has_atomic])
if test "x$libzmq_netbsd_has_atomic" = "xno"; then
AC_DEFINE(ZMQ_FORCE_MUTEXES, 1, [Force to use mutexes])
fi
;;
*openbsd*)
# Define on OpenBSD to enable all library features
CPPFLAGS="-D_BSD_SOURCE $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_OPENBSD, 1, [Have OpenBSD OS])
;;
*nto-qnx*)
libzmq_pedantic="no"
AC_DEFINE(ZMQ_HAVE_QNXNTO, 1, [Have QNX Neutrino OS])
AC_CHECK_LIB(socket, socket)
;;
*aix*)
AC_DEFINE(ZMQ_HAVE_AIX, 1, [Have AIX OS])
;;
*hpux*)
# Define on HP-UX to enable all library features
CPPFLAGS="-D_POSIX_C_SOURCE=200112L $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_HPUX, 1, [Have HPUX OS])
;;
*mingw32*)
AC_DEFINE(ZMQ_HAVE_WINDOWS, 1, [Have Windows OS])
AC_DEFINE(ZMQ_HAVE_MINGW32, 1, [Have MinGW32])
AC_CHECK_HEADERS(windows.h)
AC_CHECK_LIB(ws2_32, main, ,
[AC_MSG_ERROR([cannot link with ws2_32.dll.])])
AC_CHECK_LIB(rpcrt4, main, ,
[AC_MSG_ERROR([cannot link with rpcrt4.dll.])])
AC_CHECK_LIB(iphlpapi, main, ,
[AC_MSG_ERROR([cannot link with iphlpapi.dll.])])
# mingw32 defines __int64_t as long long
AC_LANG_PUSH([C++])
LIBZMQ_CHECK_LANG_FLAG_PREPEND([-Wno-long-long])
AC_LANG_POP([C++])
libzmq_on_mingw32="yes"
libzmq_dso_visibility="no"
if test "x$enable_static" = "xyes"; then
AC_MSG_ERROR([Building static libraries is not supported under MinGW32])
fi
;;
*cygwin*)
# Define on Cygwin to enable all library features
CPPFLAGS="-D_GNU_SOURCE $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_CYGWIN, 1, [Have Cygwin])
if test "x$enable_static" = "xyes"; then
AC_MSG_ERROR([Building static libraries is not supported under Cygwin])
fi
;;
*)
AC_MSG_ERROR([unsupported system: ${host_os}.])
;;
esac
#
# Check if the compiler supports -fvisibility=hidden flag. MinGW32 uses __declspec
#
if test "x$libzmq_dso_visibility" = "xyes"; then
AC_LANG_PUSH([C++])
LIBZMQ_CHECK_LANG_VISIBILITY([LIBZMQ_EXTRA_CXXFLAGS="$libzmq_cv_[]_AC_LANG_ABBREV[]_visibility_flag ${LIBZMQ_EXTRA_CXXFLAGS}"])
AC_LANG_POP([C++])
fi
# CPU-specific optimizations
case "${host_cpu}" in
*sparc*)
AC_LANG_PUSH([C++])
LIBZMQ_CHECK_LANG_FLAG_PREPEND([-mcpu=v9])
AC_LANG_POP([C++])
;;
*)
;;
esac
# Check whether to build docs / install man pages
LIBZMQ_CHECK_DOC_BUILD
# Check polling system
LIBZMQ_CHECK_POLLER([CPPFLAGS="${CPPFLAGS} -D${libzmq_cv_poller_flag}"],
[AC_MSG_ERROR([Unable to continue without polling system])])
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(errno.h arpa/inet.h netinet/tcp.h netinet/in.h stddef.h \
stdlib.h string.h sys/socket.h sys/time.h time.h unistd.h limits.h)
# Check if we have ifaddrs.h header file.
AC_CHECK_HEADERS(ifaddrs.h, [AC_DEFINE(ZMQ_HAVE_IFADDRS, 1, [Have ifaddrs.h header.])])
# Force not to use eventfd
AC_ARG_ENABLE([eventfd], [AS_HELP_STRING([--disable-eventfd], [disable eventfd [default=no]])],
[zmq_disable_eventfd=yes], [zmq_disable_eventfd=no])
if test "x$zmq_disable_eventfd" != "xyes"; then
# Check if we have eventfd.h header file.
AC_CHECK_HEADERS(sys/eventfd.h,
[AC_DEFINE(ZMQ_HAVE_EVENTFD, 1, [Have eventfd extension.])])
fi
# Use c++ in subsequent tests
AC_LANG_PUSH(C++)
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
# Checks for typedefs, structures, and compiler characteristics.
if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_intel_compiler" = "xyes"; then
dnl 279: controlling expression is constant
dnl Fixes build with ICC 12.x
LIBZMQ_CHECK_WITH_FLAG([-wd279], [AC_TYPE_SIZE_T])
LIBZMQ_CHECK_WITH_FLAG([-wd279], [AC_TYPE_SSIZE_T])
else
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
fi
AC_HEADER_TIME
AC_TYPE_UINT32_T
AC_C_VOLATILE
# PGM extension
libzmq_pgm_ext="no"
pgm_basename="libpgm-5.1.118~dfsg"
AC_ARG_WITH([pgm], [AS_HELP_STRING([--with-pgm],
[build libzmq with PGM extension [default=no]])],
[with_pgm_ext=$withval], [with_pgm_ext=no])
# build using system pgm
AC_ARG_WITH([system-pgm], [AS_HELP_STRING([--with-system-pgm],
[build libzmq with PGM extension. Requires pkg-config [default=no]])],
[with_system_pgm_ext=yes], [with_system_pgm_ext=no])
if test "x$with_pgm_ext" != "xno" -a "x$with_system_pgm_ext" != "xno"; then
AC_MSG_ERROR([--with-pgm and --with-system-pgm cannot be specified together])
fi
if test "x$with_pgm_ext" != "xno"; then
# This allows placing the tar.gz to foreign/openpgm
# and using ./configure --with-pgm=libpgm-x.y.z
if test "x$with_pgm_ext" != "xyes"; then
pgm_basename="$with_pgm_ext"
fi
# Unpack libpgm
AC_MSG_NOTICE([Unpacking ${pgm_basename}.tar.gz])
libzmq_pwd=`pwd`
cd foreign/openpgm
if ! (gzip -dc "${pgm_basename}.tar.gz" || echo "failed") | ${am__untar}; then
AC_MSG_ERROR([cannot unpack the foreign/openpgm/${pgm_basename}.tar.gz file])
fi
cd "${libzmq_pwd}"
if test -d foreign/openpgm/build-staging; then
rm -rf foreign/openpgm/build-staging
fi
mv foreign/openpgm/${pgm_basename} foreign/openpgm/build-staging
pgm_srcdir=foreign/openpgm/build-staging/openpgm/pgm
if ! test -d foreign/openpgm/build-staging/openpgm/pgm/config; then
mkdir foreign/openpgm/build-staging/openpgm/pgm/config
fi
# DSO symbol visibility for openpgm
AC_LANG_PUSH([C])
LIBZMQ_CHECK_LANG_VISIBILITY([ac_configure_args="CFLAGS='$libzmq_cv_[]_AC_LANG_ABBREV[]_visibility_flag' ${ac_configure_args}"])
AC_LANG_POP([C])
pgm_subdir=build-staging/openpgm/pgm
AC_SUBST(pgm_subdir)
AC_SUBST(pgm_srcdir)
AC_CONFIG_SUBDIRS([foreign/openpgm/build-staging/openpgm/pgm/])
# Success!
AC_DEFINE(ZMQ_HAVE_OPENPGM, 1, [Have OpenPGM extension])
libzmq_pgm_ext="yes"
fi
# Build with system openpgm
if test "x$with_system_pgm_ext" != "xno"; then
m4_ifdef([PKG_CHECK_MODULES], [
PKG_CHECK_MODULES([OpenPGM], [openpgm-5.1 >= 5.1])
AC_DEFINE(ZMQ_HAVE_OPENPGM, 1, [Have OpenPGM extension])
LIBZMQ_EXTRA_CXXFLAGS="$OpenPGM_CFLAGS $LIBZMQ_EXTRA_CXXFLAGS"
LIBS="$OpenPGM_LIBS $LIBS"
],
[AC_MSG_ERROR([--with-system-pgm requires a working pkg-config installation])])
fi
AC_SUBST(pgm_basename)
# Set -Wall, -Werror and -pedantic
AC_LANG_PUSH([C++])
# Check how to enable -Wall
LIBZMQ_LANG_WALL([CPPFLAGS="$libzmq_cv_[]_AC_LANG_ABBREV[]_wall_flag $CPPFLAGS"])
if test "x$libzmq_werror" = "xyes" -a "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" != "xyes"; then
LIBZMQ_LANG_WERROR([CPPFLAGS="$libzmq_cv_[]_AC_LANG_ABBREV[]_werror_flag $CPPFLAGS"])
fi
if test "x$libzmq_pedantic" = "xyes"; then
LIBZMQ_LANG_STRICT([CPPFLAGS="$libzmq_cv_[]_AC_LANG_ABBREV[]_strict_flag $CPPFLAGS"])
fi
AC_LANG_POP([C++])
AM_CONDITIONAL(BUILD_PGM, test "x$libzmq_pgm_ext" = "xyes")
AM_CONDITIONAL(ON_MINGW, test "x$libzmq_on_mingw32" = "xyes")
# Checks for library functions.
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(perror gettimeofday clock_gettime memset socket getifaddrs freeifaddrs)
AC_CHECK_HEADERS([alloca.h])
LIBZMQ_CHECK_SOCK_CLOEXEC([AC_DEFINE(
[ZMQ_HAVE_SOCK_CLOEXEC],
[1],
[Whether SOCK_CLOEXEC is defined and functioning.])
])
# Subst LIBZMQ_EXTRA_CFLAGS & CXXFLAGS & LDFLAGS
AC_SUBST(LIBZMQ_EXTRA_CFLAGS)
AC_SUBST(LIBZMQ_EXTRA_CXXFLAGS)
AC_SUBST(LIBZMQ_EXTRA_LDFLAGS)
AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile
perf/Makefile src/libzmq.pc \
builds/msvc/Makefile tests/Makefile \
foreign/openpgm/Makefile \
builds/redhat/zeromq.spec])
AC_OUTPUT
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