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libzmq/configure.ac
Jim Garlick edd6b0ad01 gssapi: add a basic test for GSSAPI security 
Problem: there is no test coverage for GSSAPI.

Solution: add a test structured like the CURVE test.

The test is not built if libzmq is not configured with
--with-libgssapi_krb5. It will report SKIPPED status
if the required environment is missing (see below).

Environment:  KRB5_KTNAME and KRB5_CLIENT_KTNAME
environment variables must point to a keytab file
containing creds for a host-based test principal
(see comment at top of source for details).
Kerberos must be configured and a KDC containing the
test principal must be running, otherwise the test
will fail/hang.

N.B. For now, the test must use the same principal for
both client and server roles because it seems impossible
to set them to different principals when they are
threads in the same process.  Once one principal is
cached in credential cache, attempts to acquire creds
for a different "desired name" seem to be ignored and
the cached principal is used instead.
2017-04-26 09:31:21 -07:00

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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)
AC_CONFIG_HEADERS([src/platform.hpp])
AM_INIT_AUTOMAKE(foreign subdir-objects tar-ustar dist-zip)
m4_pattern_allow([AC_PROG_CC_C99])
m4_include([m4/ax_check_compile_flag.m4])
m4_include([m4/ax_cxx_compile_stdcxx_11.m4])
m4_include([m4/ax_code_coverage.m4])
m4_include([m4/ax_valgrind_check.m4])
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)
# ZeroMQ version 4.0: 4:0:0 (ABI version 4)
# ZeroMQ version 4.1: 5:0:0 (ABI version 5)
# ZeroMQ version 4.2.0: 6:0:1 (ABI version 5)
# ZeroMQ version 4.2.1: 6:1:1 (ABI version 5)
# ZeroMQ version 4.2.2: 6:2:1 (ABI version 5)
# ZeroMQ version 4.2.3: 6:3:1 (ABI version 5)
#
# libzmq -version-info current:revision:age
LTVER="6:3:1"
AC_SUBST(LTVER)
# Take a copy of original flags
ZMQ_ORIG_CFLAGS="${CFLAGS:-none}"
ZMQ_ORIG_CPPFLAGS="${CPPFLAGS:-none}"
ZMQ_ORIG_CXXFLAGS="${CXXFLAGS:-none}"
# Checks for programs.
AC_PROG_CC
AX_CHECK_COMPILE_FLAG([-std=gnu11], [CFLAGS+=" -std=gnu11"], [AC_PROG_CC_C99])
AC_PROG_CXX
AX_CXX_COMPILE_STDCXX_11([ext], [optional])
AX_CODE_COVERAGE
AM_PROG_CC_C_O
AC_PROG_SED
AC_PROG_AWK
PKG_PROG_PKG_CONFIG
m4_pattern_forbid([^PKG_[A-Z_]+$], [missing some pkg-config macros (pkg-config package)])
# 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
AX_VALGRIND_CHECK
# Check whether to build a with debug symbols
LIBZMQ_CHECK_ENABLE_DEBUG
# Check whether to enable code coverage
LIBZMQ_WITH_GCOV
AC_MSG_CHECKING([if TIPC is available and supports nonblocking connect])
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([[
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/socket.h>
#include <linux/tipc.h>
]],[[
struct sockaddr_tipc topsrv;
int sd = socket(AF_TIPC, SOCK_SEQPACKET, 0);
if (sd == -EAFNOSUPPORT) {
return 1;
}
memset(&topsrv, 0, sizeof(topsrv));
topsrv.family = AF_TIPC;
topsrv.addrtype = TIPC_ADDR_NAME;
topsrv.addr.name.name.type = TIPC_TOP_SRV;
topsrv.addr.name.name.instance = TIPC_TOP_SRV;
fcntl(sd, F_SETFL, O_NONBLOCK);
if (connect(sd, (struct sockaddr *)&topsrv, sizeof(topsrv)) != 0) {
if (errno != EINPROGRESS)
return -1;
}
]])
],
[libzmq_tipc_support=yes],
[libzmq_tipc_support=no],
[libzmq_tipc_support=no])
AC_MSG_RESULT([$libzmq_tipc_support])
AC_ARG_ENABLE([pedantic],
[AS_HELP_STRING([--disable-pedantic], [disable pedantic compiler checks [default=enabled]])],
[libzmq_pedantic=$enableval], [libzmq_pedantic=yes])
AC_ARG_WITH([militant],
[AS_HELP_STRING([--with-militant],
[enable militant API assertions])],
[zmq_militant="yes"],
[])
if test "x$zmq_militant" = "xyes"; then
AC_DEFINE(ZMQ_ACT_MILITANT, 1, [Enable militant API assertions])
fi
# By default compiling with -Werror except OSX.
libzmq_werror="yes"
# By default use DSO visibility
libzmq_dso_visibility="yes"
# Platform specific checks
libzmq_on_mingw="no"
libzmq_on_cygwin="no"
libzmq_on_android="no"
libzmq_on_linux="no"
libzmq_on_gnu="no"
# Set some default features required by ZeroMQ code
CPPFLAGS="-D_REENTRANT -D_THREAD_SAFE -Wno-long-long $CPPFLAGS"
# Will be used to add flags to pkg-config useful when apps want to statically link
PKGCFG_LIBS_PRIVATE=""
# For host type checks
AC_CANONICAL_HOST
# OS-specific tests
case "${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 $CPPFLAGS"
fi
AC_DEFINE(ZMQ_HAVE_LINUX, 1, [Have Linux OS])
libzmq_on_linux="yes"
# dladdr/dlopen is in libdl on glibc
AC_SEARCH_LIBS([dladdr], [dl dld], [], [
AC_MSG_ERROR([unable to find the dladdr() function])
])
if test "x$libzmq_tipc_support" = "xyes"; then
AC_DEFINE(ZMQ_HAVE_TIPC, 1, [Have TIPC support])
fi
case "${host_os}" in
*android*)
AC_DEFINE(ZMQ_HAVE_ANDROID, 1, [Have Android OS])
libzmq_on_android="yes"
;;
esac
;;
*solaris*)
# Define on Solaris to enable all library features
CPPFLAGS="-Wno-sign-compare -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])
;;
*dragonfly*)
CPPFLAGS="-D__BSD_VISIBLE $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_DRAGONFLY, 1, [Have DragonFly 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*|*bitrig*)
# 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 $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_HPUX, 1, [Have HPUX OS])
LIBZMQ_CHECK_LANG_FLAG_PREPEND([-Ae])
AC_CHECK_FUNCS(gethrtime)
;;
*mingw*|*msys*)
AC_DEFINE(ZMQ_HAVE_WINDOWS, 1, [Have Windows OS])
AC_DEFINE(ZMQ_HAVE_MINGW, 1, [Have MinGW])
AC_CHECK_HEADERS(windows.h)
AC_CHECK_LIB(ws2_32, main, ,
[AC_MSG_ERROR([cannot link with ws2_32.dll.])])
AC_CHECK_LIB(rpcrt4, main, ,
[AC_MSG_ERROR([cannot link with rpcrt4.dll.])])
AC_CHECK_LIB(iphlpapi, main, ,
[AC_MSG_ERROR([cannot link with iphlpapi.dll.])])
libzmq_on_mingw="yes"
libzmq_dso_visibility="no"
if test "x$enable_static" = "xyes"; then
CPPFLAGS="-DZMQ_STATIC $CPPFLAGS"
fi
# Set FD_SETSIZE to 16384
CPPFLAGS=" -DFD_SETSIZE=16384 $CPPFLAGS"
;;
*cygwin*)
# Define on Cygwin to enable all library features
CPPFLAGS="-D_GNU_SOURCE $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_CYGWIN, 1, [Have Cygwin])
libzmq_on_cygwin="yes"
libzmq_dso_visibility="no"
if test "x$enable_static" = "xyes"; then
AC_MSG_ERROR([Building static libraries is not supported under Cygwin])
fi
;;
gnu*)
# Define on GNU/Hurd 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_GNU, 1, [Have GNU/Hurd OS])
libzmq_on_gnu="yes"
AC_CHECK_LIB(rt, sem_init)
;;
*)
AC_MSG_ERROR([unsupported system: ${host_os}.])
;;
esac
# Checks for libraries
AC_CHECK_LIB([pthread], [pthread_create])
AC_CHECK_LIB([rt], [clock_gettime])
#
# Check if the compiler supports -fvisibility=hidden flag. MinGW uses __declspec
#
if test "x$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
*sparc64*)
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, set appropriate macro in src/platform.hpp
LIBZMQ_CHECK_POLLER
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(\
errno.h \
time.h \
unistd.h \
limits.h \
stddef.h \
stdlib.h \
string.h \
arpa/inet.h \
netinet/tcp.h \
netinet/in.h \
sys/socket.h \
sys/time.h)
# Check if we have ifaddrs.h header file.
AC_CHECK_HEADERS(ifaddrs.h, [AC_DEFINE(ZMQ_HAVE_IFADDRS, 1, [Have ifaddrs.h header.])])
# Check if we have sys/uio.h header file.
AC_CHECK_HEADERS(sys/uio.h, [AC_DEFINE(ZMQ_HAVE_UIO, 1, [Have uio.h header.])])
# Force not to use eventfd
AC_ARG_ENABLE([eventfd],
[AS_HELP_STRING([--disable-eventfd], [disable eventfd [default=enabled]])],
[zmq_enable_eventfd=$enableval],
[zmq_enable_eventfd=yes])
if test "x$zmq_enable_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])
LIBZMQ_CHECK_EVENTFD_CLOEXEC([
AC_DEFINE([ZMQ_HAVE_EVENTFD_CLOEXEC],
[1],
[Whether EFD_CLOEXEC is defined and functioning.])
])
])
fi
# Conditionally build performance measurement tools
AC_ARG_ENABLE([perf],
[AS_HELP_STRING([--disable-perf], [don't build performance measurement tools [default=build]])],
[zmq_enable_perf=$enableval],
[zmq_enable_perf=yes])
AM_CONDITIONAL(ENABLE_PERF, test "x$zmq_enable_perf" = "xyes")
# Conditionally build curve key generation tool
AC_ARG_ENABLE([curve-keygen],
[AS_HELP_STRING([--disable-curve-keygen], [don't build curve-keygen tool [default=build]])],
[zmq_enable_curve_keygen=$enableval],
[zmq_enable_curve_keygen=yes])
# Use c++ in subsequent tests
AC_LANG_PUSH(C++)
AC_CHECK_DECLS([SO_PEERCRED],
[AC_DEFINE(ZMQ_HAVE_SO_PEERCRED, 1, [Have SO_PEERCRED socket option])],
[],
[#include <sys/socket.h>])
AC_CHECK_DECLS([LOCAL_PEERCRED],
[AC_DEFINE(ZMQ_HAVE_LOCAL_PEERCRED, 1, [Have LOCAL_PEERCRED socket option])],
[],
[#include <sys/socket.h>])
AM_CONDITIONAL(HAVE_IPC_PEERCRED, test "x$ac_cv_have_decl_SO_PEERCRED" = "xyes" || test "x$ac_cv_have_decl_LOCAL_PEERCRED" = "xyes")
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
# Checks for typedefs, structures, and compiler characteristics.
if test "x$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
# build using libgssapi_krb5
AC_ARG_WITH([libgssapi_krb5], [AS_HELP_STRING([--with-libgssapi_krb5],
[require libzmq build with libgssapi_krb5 [default=no]])],
[require_libgssapi_krb5_ext=$withval],
[require_libgssapi_krb5_ext=no])
# conditionally require libgssapi_krb5
if test "x$require_libgssapi_krb5_ext" != "xno"; then
AC_CHECK_HEADERS(gssapi/gssapi_generic.h)
AC_SEARCH_LIBS([gss_init_sec_context], [gssapi_krb5 gssapi],
AC_DEFINE(HAVE_LIBGSSAPI_KRB5, [1], [Enabled GSSAPI security]),
AC_MSG_ERROR(libgssapi_krb5 is needed for GSSAPI security))
fi
AM_CONDITIONAL(BUILD_GSSAPI, test "x$require_libgssapi_krb5_ext" != "xno")
# Select curve encryption library, defaults to tweetnacl
# To use libsodium instead, use --with-libsodium (must be installed)
# To disable curve, use --disable-curve
AC_ARG_WITH([libsodium],
[AS_HELP_STRING([--with-libsodium], [use libsodium instead of built-in tweetnacl [default=no]])])
AS_IF([test "x$with_libsodium" = "xyes"], [
PKG_CHECK_MODULES([sodium], [libsodium], [libsodium_found=yes], [
AC_MSG_ERROR(libsodium is not installed. Install it, then run configure again)
])
])
AC_ARG_ENABLE([curve],
[AS_HELP_STRING([--disable-curve], [disable CURVE security [default=no]])])
if test "x$enable_curve" = "xno"; then
curve_library=""
AC_MSG_NOTICE([CURVE security is disabled])
elif test "x$with_libsodium" = "xyes"; then
AC_MSG_NOTICE([Using libsodium for CURVE security])
AC_DEFINE(ZMQ_HAVE_CURVE, [1], [Using curve encryption])
AC_DEFINE(ZMQ_USE_LIBSODIUM, [1], [Using libsodium for curve encryption])
curve_library="libsodium"
enable_curve="yes"
# On Solaris, libsodium depends on libssp
case "${host_os}" in
*solaris*)
LDFLAGS="-lssp $LDFLAGS"
libzmq_pedantic="no"
libzmq_werror="no"
;;
esac
PKGCFG_LIBS_PRIVATE="$PKGCFG_LIBS_PRIVATE $sodium_LIBS"
else
AC_MSG_NOTICE([Using tweetnacl for CURVE security])
AC_DEFINE(ZMQ_HAVE_CURVE, [1], [Using curve encryption])
AC_DEFINE(ZMQ_USE_TWEETNACL, [1], [Using tweetnacl for curve encryption])
curve_library="tweetnacl"
enable_curve="yes"
fi
AM_CONDITIONAL(ENABLE_CURVE_KEYGEN, test "x$enable_curve" = "xyes" -a "x$zmq_enable_curve_keygen" = "xyes")
AM_CONDITIONAL(USE_LIBSODIUM, test "$curve_library" = "libsodium")
AM_CONDITIONAL(USE_TWEETNACL, test "$curve_library" = "tweetnacl")
# build using pgm
have_pgm_library="no"
AC_ARG_WITH([pgm], [AS_HELP_STRING([--with-pgm],
[build libzmq with PGM extension. Requires pkg-config [default=no]])],
[with_pgm_ext=$withval],
[with_pgm_ext=no])
# conditionally require pgm package
if test "x$with_pgm_ext" != "xno"; then
PKG_CHECK_MODULES([pgm], [openpgm-5.2 >= 5.2], [ have_pgm_library="yes" ],
[PKG_CHECK_MODULES([pgm], [openpgm-5.1 >= 5.1],
[ have_pgm_library="yes" ])])
fi
if test "x$have_pgm_library" = "xyes"; then
AC_DEFINE(ZMQ_HAVE_OPENPGM, [1], [Have OpenPGM extension])
PKGCFG_LIBS_PRIVATE="$PKGCFG_LIBS_PRIVATE $pgm_LIBS"
fi
AM_CONDITIONAL(HAVE_PGM, test "x$have_pgm_library" = "xyes")
# This uses "--with-norm" to point to the "norm" directory
# for "norm/include" and "norm/lib"
#(if "--with-norm=yes" is given, then assume installed on system)
AC_ARG_WITH([norm],
[AS_HELP_STRING([--with-norm],
[build libzmq with NORM protocol extension, optionally specifying norm path [default=no]])],
[with_norm_ext=$withval],
[with_norm_ext=no])
AC_MSG_CHECKING("with_norm_ext = ${with_norm_ext}")
if test "x$with_norm_ext" != "xno"; then
AC_MSG_RESULT([yes])
AC_DEFINE(ZMQ_HAVE_NORM, 1, [Have NORM protocol extension])
if test "x$with_norm_ext" != "xyes"; then
norm_path="${with_norm_ext}"
LIBZMQ_EXTRA_CXXFLAGS="-I${norm_path}/include ${LIBZMQ_EXTRA_CXXFLAGS}"
LIBZMQ_EXTRA_LDFLAGS="-L${norm_path}/lib ${LIBZMQ_EXTRA_LDFLAGS}"
fi
LIBS="-L${norm_path}/lib -lnorm $LIBS"
PKGCFG_LIBS_PRIVATE="$PKGCFG_LIBS_PRIVATE -lnorm"
else
AC_MSG_RESULT([no])
fi
# build using vmci
have_vmci_library="no"
AC_ARG_WITH([vmci], [AS_HELP_STRING([--with-vmci],
[build libzmq with VMCI transport [default=no]])],
[have_vmci_ext=$withval],
[have_vmci_ext=no])
if test "x$have_vmci_ext" != "xno"; then
AC_DEFINE(ZMQ_HAVE_VMCI, 1, [Have VMCI transport])
if test "x$have_vmci_ext" != "xyes"; then
vmci_path="${have_vmci_ext}"
LIBZMQ_VMCI_CXXFLAGS="-I${vmci_path}"
LIBZMQ_VMCI_LDFLAGS="-I${vmci_path}"
LIBZMQ_EXTRA_CXXFLAGS="${LIBZMQ_VMCI_CXXFLAGS} ${LIBZMQ_EXTRA_CXXFLAGS}"
LIBZMQ_EXTRA_LDFLAGS="${LIBZMQ_VMCI_LDFLAGS} ${LIBZMQ_EXTRA_LDFLAGS}"
fi
fi
AM_CONDITIONAL(HAVE_VMCI, test "x$have_vmci_ext" != "xno")
# 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 $CPPFLAGS"])
fi
AC_LANG_POP([C++])
AM_CONDITIONAL(BUILD_TIPC, test "x$libzmq_tipc_support" = "xyes")
AM_CONDITIONAL(ON_MINGW, test "x$libzmq_on_mingw" = "xyes")
AM_CONDITIONAL(ON_CYGWIN, test "x$libzmq_on_cygwin" = "xyes")
AM_CONDITIONAL(ON_ANDROID, test "x$libzmq_on_android" = "xyes")
AM_CONDITIONAL(ON_LINUX, test "x$libzmq_on_linux" = "xyes")
AM_CONDITIONAL(ON_GNU, test "x$libzmq_on_gnu" = "xyes")
# Check for __atomic_Xxx compiler intrinsics
AC_LANG_PUSH([C++])
LIBZMQ_CHECK_ATOMIC_INTRINSICS([
AC_DEFINE([ZMQ_HAVE_ATOMIC_INTRINSICS],
[1],
[Whether compiler has __atomic_Xxx intrinsics.])
])
AC_LANG_POP([C++])
# Checks for library functions.
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(perror gettimeofday clock_gettime memset socket getifaddrs freeifaddrs fork posix_memalign mkdtemp)
AC_CHECK_HEADERS([alloca.h])
# pthread_setname is non-posix, and there are at least 4 different implementations
AC_MSG_CHECKING([whether signature of pthread_setname_np() has 1 argument])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_setname_np ("foo"); return 0;]])
],[
AC_MSG_RESULT([yes])
AC_DEFINE(ZMQ_HAVE_PTHREAD_SETNAME_1, [1],
[Whether pthread_setname_np() has 1 argument])
],[
AC_MSG_RESULT([no])
])
AC_MSG_CHECKING([whether signature of pthread_setname_np() has 2 arguments])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_setname_np (pthread_self (), "foo"); return 0;]])
],[
AC_MSG_RESULT([yes])
AC_DEFINE(ZMQ_HAVE_PTHREAD_SETNAME_2, [1],
[Whether pthread_setname_np() has 2 arguments])
],[
AC_MSG_RESULT([no])
])
AC_MSG_CHECKING([whether signature of pthread_setname_np() has 3 arguments])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_setname_np (pthread_self(), "foo", (void *)0); return 0;]])
],[
AC_MSG_RESULT([yes])
AC_DEFINE(ZMQ_HAVE_PTHREAD_SETNAME_3, [1],
[Whether pthread_setname_np() has 3 arguments])
],[
AC_MSG_RESULT([no])
])
AC_MSG_CHECKING([whether pthread_set_name_np() exists])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_set_name_np (pthread_self(), "foo"); return 0;]])
],[
AC_MSG_RESULT([yes])
AC_DEFINE(ZMQ_HAVE_PTHREAD_SET_NAME, [1],
[Whether pthread_set_name_np() exists])
],[
AC_MSG_RESULT([no])
])
LIBZMQ_CHECK_SOCK_CLOEXEC([
AC_DEFINE([ZMQ_HAVE_SOCK_CLOEXEC],
[1],
[Whether SOCK_CLOEXEC is defined and functioning.])
])
# TCP keep-alives Checks.
LIBZMQ_CHECK_SO_KEEPALIVE([
AC_DEFINE([ZMQ_HAVE_SO_KEEPALIVE],
[1],
[Whether SO_KEEPALIVE is supported.])
])
LIBZMQ_CHECK_TCP_KEEPCNT([
AC_DEFINE([ZMQ_HAVE_TCP_KEEPCNT],
[1],
[Whether TCP_KEEPCNT is supported.])
])
LIBZMQ_CHECK_TCP_KEEPIDLE([
AC_DEFINE([ZMQ_HAVE_TCP_KEEPIDLE],
[1],
[Whether TCP_KEEPIDLE is supported.])
])
LIBZMQ_CHECK_TCP_KEEPINTVL([
AC_DEFINE([ZMQ_HAVE_TCP_KEEPINTVL],
[1],
[Whether TCP_KEEPINTVL is supported.])
])
LIBZMQ_CHECK_TCP_KEEPALIVE([
AC_DEFINE([ZMQ_HAVE_TCP_KEEPALIVE],
[1],
[Whether TCP_KEEPALIVE is supported.])
])
AM_CONDITIONAL(HAVE_FORK, test "x$ac_cv_func_fork" = "xyes")
if test "x$cross_compiling" = "xyes"; then
# Enable draft by default when cross-compiling
defaultval=yes
else
# enable draft API by default if we're in a git repository
# else disable it by default; then allow --enable-drafts=yes/no override
AC_CHECK_FILE($srcdir/.git, [defaultval=yes], [defaultval=no])
fi
AC_ARG_ENABLE([drafts],
AS_HELP_STRING([--enable-drafts],
[Build and install draft classes and methods [default=yes]]),
[enable_drafts=$enableval],
[enable_drafts=$defaultval])
AM_CONDITIONAL([ENABLE_DRAFTS], [test x$enable_drafts != xno])
if test "x$enable_drafts" = "xyes"; then
AC_MSG_NOTICE([Building stable and legacy API + draft API])
AC_DEFINE(ZMQ_BUILD_DRAFT_API, 1, [Provide draft classes and methods])
AC_SUBST(pkg_config_defines, "-DZMQ_BUILD_DRAFT_API=1")
else
AC_MSG_NOTICE([Building stable and legacy API (no draft API)])
AC_SUBST(pkg_config_defines, "")
fi
PKG_CHECK_MODULES(LIBUNWIND, [libunwind],
[
AC_DEFINE(HAVE_LIBUNWIND, 1, [The libunwind library is to be used])
AC_SUBST([LIBUNWIND_CFLAGS])
AC_SUBST([LIBUNWIND_LIBS])
AC_CHECK_LIB([dl], [dladdr])
],
[
AC_MSG_WARN([Cannot find libunwind])
])
# Subst LIBZMQ_EXTRA_CFLAGS & CXXFLAGS & LDFLAGS
AC_SUBST(LIBZMQ_EXTRA_CFLAGS)
AC_SUBST(LIBZMQ_EXTRA_CXXFLAGS)
AC_SUBST(LIBZMQ_EXTRA_LDFLAGS)
AC_SUBST(LIBZMQ_VMCI_CXXFLAGS)
AC_SUBST(LIBZMQ_VMCI_LDFLAGS)
AC_SUBST(pkg_config_libs_private, $PKGCFG_LIBS_PRIVATE)
# set pkgconfigdir, allow override
AC_ARG_WITH([pkgconfigdir],
AS_HELP_STRING([--with-pkgconfigdir=PATH],
[Path to the pkgconfig directory [[LIBDIR/pkgconfig]]]),
[pkgconfigdir="$withval"],
[pkgconfigdir='${libdir}/pkgconfig'])
AC_SUBST([pkgconfigdir])
AC_CONFIG_FILES([ \
Makefile \
src/libzmq.pc \
doc/Makefile \
builds/Makefile \
builds/msvc/Makefile])
AC_OUTPUT
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