#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ(2.61)
AC_INIT([zeromq],[dev])
AC_CONFIG_AUX_DIR(config)
AM_CONFIG_HEADER(src/platform.hpp)
AM_INIT_AUTOMAKE(AC_PACKAGE_NAME, AC_PACKAGE_VERSION)

# libzmq -version-info
LTVER="0:0:0"
AC_SUBST(LTVER)

# librbzmq -version-info
RBLTVER="0:0:0"
AC_SUBST(RBLTVER)

# libjzmq -version-info
JLTVER="0:0:0"
AC_SUBST(JLTVER)

AM_PROG_CC_C_O

# Checks for programs.
AC_PROG_CXX
AC_PROG_LIBTOOL
AC_PROG_SED
AC_PROG_AWK

# Checks for libraries.
AC_CHECK_LIB(pthread, pthread_create)
AC_CHECK_LIB(stdc++, malloc)

# Extra CXXFLAGS are appended at the end of CXXFLAGS for libzmq.
LIBZMQ_EXTRA_CXXFLAGS=""

# Extra LDFLAGS are appended at the end of LDFLAGS for libzmq.
LIBZMQ_EXTRA_LDFLAFS=""

# By default compiling with -pedantic except QNX and OSX.
pedantic="yes"

#By default compiling with -Werror except OSX.
werror="yes"

# Host speciffic checks
AC_CANONICAL_HOST

case "${host_os}" in
    *linux*)
        AC_DEFINE(ZMQ_HAVE_LINUX, 1, [Have Linux OS])
        CPPFLAGS="-D_REENTRANT $CPPFLAGS"
       sed < libtool > libtool-2 \
        's/^hardcode_libdir_flag_spec.*$'/'hardcode_libdir_flag_spec=" "/'
        mv libtool-2 libtool
        chmod 755 libtool
        AC_CHECK_LIB(uuid, main, , [AC_MSG_ERROR([Could not link with libuuid, install develop version.])])
        ;;
    *solaris*)
        AC_DEFINE(ZMQ_HAVE_SOLARIS, 1, [Have Solaris OS])
        AC_CHECK_LIB(socket, main)
        AC_CHECK_LIB(nsl, main)
        AC_CHECK_LIB(rt, main)
        AC_CHECK_LIB(uuid, main)
        CPPFLAGS="-D_REENTRANT -D_PTHREADS $CPPFLAGS"
        AC_MSG_CHECKING([wheter atomic operations can be used])
        AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
            [[#include <atomic.h>]],
            [[uint32_t value;
              atomic_cas_32 (&value, 0, 0);
              return 0;]])],
            [solaris_has_atomic=yes],
            [solaris_has_atomic=no])
        AC_MSG_RESULT([$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*)
        AC_DEFINE(ZMQ_HAVE_FREEBSD, 1, [Have FreeBSD OS])
        CPPFLAGS="-D_THREAD_SAFE $CPPFLAGS"
        LIBS="-pthread"
        ;;
    *darwin*)
        pedantic="no"
        werror="no"
        AC_DEFINE(ZMQ_HAVE_OSX, 1, [Have DarwinOSX OS])
        LIBS="-pthread"
        LIBZMQ_EXTRA_CXXFLAGS+="-Wno-uninitialized"
        ;;
    *openbsd*)
        AC_DEFINE(ZMQ_HAVE_OPENBSD, 1, [Have OpenBSD OS])
        CPPFLAGS="-pthread $CPPFLAGS"
        LIBS="-pthread"
        ;;
    *nto-qnx*)
        pedantic="no"
        AC_DEFINE(ZMQ_HAVE_QNXNTO, 1, [Have QNX Neutrino OS])
        CPPFLAGS="-D_THREAD_SAFE $CPPFLAGS"
        AC_CHECK_LIB(socket,main)
        ;;
    *aix*)
        AC_DEFINE(ZMQ_HAVE_AIX, 1, [Have AIX OS])
        if test "x$GXX" = "xyes"; then
          CPPFLAGS="-D_THREAD_SAFE $CPPFLAGS"
        fi
        ;;
    *hpux*)
        AC_DEFINE(ZMQ_HAVE_HPUX, 1, [Have HPUX OS])
        if test "x$GXX" = "xyes"; then
          CPPFLAGS="-D_THREAD_SAFE $CPPFLAGS"
        fi
        AC_CHECK_LIB(rt, main)
        sed < libtool > libtool-2 \
        's/^hardcode_libdir_flag_spec.*$'/'hardcode_libdir_flag_spec=" "/'
        mv libtool-2 libtool
        chmod 755 libtool
        ;;
    *mingw32*)
        pedantic="no"
        AC_DEFINE(ZMQ_HAVE_WINDOWS, 1, [Have Windows OS])
        AC_DEFINE(ZMQ_HAVE_MINGW32, 1, [Have MinGW32])
        AC_CHECK_HEADERS(windows.h)
        LIBS="-lwsock32 -lws2_32 -no-undefined"
        CFLAGS="-std=c99"
        ;;
    *)
        AC_MSG_ERROR([Not supported os: $host.])
        ;;
esac

# If not on QNX nor OSX add -pedantic into LIBZMQ_EXTRA_CXXFLAGS.
if test "x$pedantic" = "xyes"; then
    LIBZMQ_EXTRA_CXXFLAGS="${LIBZMQ_EXTRA_CXXFLAGS} -pedantic"
fi

# If not on QNX nor --with-pgm add -Werror into LIBZMQ_EXTRA_CXXFLAGS.
if test "x$werror" = "xyes" -a "x$pgm_ext" = "xno"; then
    LIBZMQ_EXTRA_CXXFLAGS="${LIBZMQ_EXTRA_CXXFLAGS} -Werror"
fi

# Check if we are running at sparc harware
AC_MSG_CHECKING([wheter __sparc__ is defined])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
    [[#if defined __sparc__
        //OK we are on sparc
    #else
        error: we are not on sparc
    #endif
    ]])],
        [sparc=yes],
        [sparc=no])

AC_MSG_RESULT([$sparc])
        
if test "x$sparc" = "xyes"; then
    CPPFLAGS="$CPPFLAGS -mcpu=v9"
fi

# 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 unistd.h limits.h)

# Check if we have eventfd.h header file.
AC_CHECK_HEADERS(sys/eventfd.h, [AC_DEFINE(ZMQ_HAVE_EVENTFD, 1, [Have eventfd extension.])])

# Check if we have ifaddrs.h header file.
AC_CHECK_HEADERS(ifaddrs.h, [AC_DEFINE(ZMQ_HAVE_IFADDRS, 1, [Have ifaddrs.h header.])])

# Use c++ in subsequent tests
AC_LANG(C++)

# Optional stuff
AC_CHECK_PROG(have_pkg_config, pkg-config, yes, no)

if test "x$have_pkg_config" != "xno"; then
    #  First instance of PKG_CHECK_ has to be executed
    PKG_CHECK_EXISTS([dummy_pkg], [], [])
fi

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_HEADER_TIME
AC_TYPE_UINT32_T
AC_C_VOLATILE

# Substs
stdint="0"
if test "x$HAVE_STDINT_H" = "xyes"; then
    stdint="1"
fi

inttypes="0"
if test "x$HAVE_INTTYPES_H" = "xyes"; then
    inttypes="1"
fi

# c 
czmq="no"
AC_ARG_WITH([c], [AS_HELP_STRING([--with-c], 
    [build c language binding [default=no]])], [c=yes], [c=no])

if test "x$c" != "xno"; then
    czmq="yes" 
fi

# c++
cppzmq="no"
AC_ARG_WITH([cpp], [AS_HELP_STRING([--with-cpp], 
    [build c++ language binding [default=no]])], [cpp=yes], [cpp=no])

if test "x$cpp" != "xno"; then
    cppzmq="yes" 
fi

# Python
pyzmq="no"
AC_ARG_WITH(python_headersdir,
    AS_HELP_STRING([--with-python-headersdir], [Python.h header file location]),
        [python_headersdir="$withval"], [python_headersdir="no"])

AC_ARG_WITH([python], [AS_HELP_STRING([--with-python], [build Python language binding [default=no]])], [with_python=yes], [with_python=no])
if test "x$with_python" != "xno"; then
    AM_PATH_PYTHON([2.4], , [:])
    if test "x$PYTHON" = "x:"; then
        AC_MSG_ERROR([To run configure with --with-python option, Python has to be installed.]);
    fi

    if test "x$python_headersdir" != "xno"; then
        PYTHON_INCLUDES="-I${python_headersdir}"
        PYTHON_SETUP_INCLUDES="${python_headersdir}"

        AC_CHECK_HEADERS($python_headersdir/Python.h, [] , 
            [AC_MSG_ERROR([To run configure with --with-python option, Python.h has to be usable.])])

    else 
        py_prefix=`$PYTHON -c "import sys; print sys.prefix"`
        py_exec_prefix=`$PYTHON -c "import sys; print sys.exec_prefix"`
        PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
        PYTHON_SETUP_INCLUDES="${py_prefix}/include/python${PYTHON_VERSION}"

        if test "$py_prefix" != "$py_exec_prefix"; then
            PYTHON_INCLUDES="${PYTHON_INCLUDES} -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
        fi

        AC_CHECK_HEADERS($py_prefix/include/python${PYTHON_VERSION}/Python.h, [] , 
            [AC_MSG_ERROR([To run configure with --with-python option, Python.h has to be usable.])])
    fi

    AC_SUBST(PYTHON_INCLUDES)
    AC_SUBST(PYTHON_SETUP_INCLUDES)

    pyzmq="yes"
fi

# RUBY
rbzmq="no"
AC_ARG_WITH(ruby_headersdir,
    AS_HELP_STRING([--with-ruby-headersdir], [ruby.h header file location]),
        [ruby_headersdir="$withval"], [ruby_headersdir="no"])

if test "x$ruby_headersdir" != "xno"; then
    CPPFLAGS="${CPPFLAGS} -I${ruby_headersdir}"
fi

AC_ARG_WITH(ruby_libdir,
    AS_HELP_STRING([--with-ruby-libdir],[libruby library file location]),
        [ruby_libdir="$withval"], [ruby_libdir="no"])

if test "x$ruby_libdir" != "xno"; then
    LDFLAGS="${LDFLAGS} -L${ruby_libdir}"
fi

AC_ARG_WITH([ruby], [AS_HELP_STRING([--with-ruby], [build ruby language binding [default=no]])], [with_ruby=yes], [with_ruby=no])
if test "x$with_ruby" != "xno"; then
    AC_CHECK_HEADERS([ruby.h], [], 
        [AC_MSG_ERROR([Could not find Ruby header files, Please specify their location with --with-ruby-headersdir.])])

    AC_SEARCH_LIBS(ruby_init,[ruby ruby1.8 ruby18],, 
        [AC_MSG_ERROR([Could not link with Ruby library. Please specify their location with --with-ruby-libdir.])])
   
    rbzmq="yes"
fi

AC_ARG_WITH([rubydir], [AS_HELP_STRING([--with-rubydir],
    [librbzmq install dir [default=EPREFIX/lib]])],
    [rubydir="$withval"], [rubydir="_default_"])

if test "$rubydir" = "_default_"; then
    rubydir=${libdir}
else
    rubydir=${rubydir}
fi

RUBYDIR="$rubydir"
AC_SUBST([RUBYDIR])

if test "x$pyzmq" != "xyes"; then
    AC_CHECK_PROG(have_python, python, yes, no)
    if test "x$have_python" != "xyes"; then
        AC_MSG_ERROR([Could not find python.])
    fi
fi
    
# Java language binding
jzmq="no"
AC_ARG_WITH([java], [AS_HELP_STRING([--with-java], [build Java language binding [default=no]])], [with_java=yes], [with_java=no])
if test "x$with_java" != "xno"; then
    AC_PATH_PROG(JAVAC, javac, "no",[$PATH:$JAVA_HOME/bin])
    if test "x$JAVAC" = "xno"; then
        AC_MSG_ERROR([To run configure with --with-java option, javac has to be on the path.]);
    fi

    AC_PATH_PROG(JAVAH, javah, "no",[$PATH:$JAVA_HOME/bin])
    if test "x$JAVAH" = "xno"; then
        AC_MSG_ERROR([To run configure with --with-java option, javah has to be on the path.]);
    fi

    AC_PATH_PROG(JAR, jar, "no", [$PATH:$JAVA_HOME/bin])
    if test "x$JAR" = "xno"; then
        AC_MSG_ERROR([To run configure with --with-java option, jar has to be on the path.]);
    fi

    if test "x$JAVA_HOME" = "x"; then
        AC_MSG_ERROR([To run configure with --with-java, please set the JAVA_HOME variable to your JDK environment.]);
    fi

    AC_MSG_CHECKING([for jni.h in a $JAVA_HOME/include dir])
    if test -f $JAVA_HOME/include/jni.h; then
        AC_MSG_RESULT([yes])
    else
        AC_MSG_ERROR([Could not find jni.h in $JAVA_HOME/include directory.]);
    fi

    JAVAROOT=./
    AC_SUBST(JAVAROOT)

    case "${host_os}" in
        *solaris*)
            JAVA_INCLUDE="-I.. -I${JAVA_HOME}/include -I ${JAVA_HOME}/include/solaris"
        ;;
        *openbsd*)
            JAVA_INCLUDE="-I.. -I${JAVA_HOME}/include -I ${JAVA_HOME}/include/openbsd"
        ;;
        *)
            JAVA_INCLUDE="-I.. -I${JAVA_HOME}/include -I ${JAVA_HOME}/include/linux"
        ;;
    esac

    AC_SUBST(JAVA_INCLUDE)

    jzmq="yes"
else
# Workaround to be able to run make dist without real JAVAH
    JAVAH=true
    JAVAC=true
    JAR=true
fi

#  PGM extension
pgm_ext="no"
pgm_name=""
pgm_basename="libpgm-1.2.14"
AC_SUBST(pgm_basename)
AC_ARG_WITH([pgm], [AS_HELP_STRING([--with-pgm], 
    [build libzmq with PGM extension [default=no]])], 
    [with_pgm_ext=yes], [with_pgm_ext=no])
if test "x$with_pgm_ext" != "xno"; then

    #  Test if we have pkg-config
    if test "x$have_pkg_config" != "xyes"; then
        AC_MSG_ERROR([To run configure with --with-pgm option, pkg-config has to be installed.]);
    fi

     case "${host_os}" in
        *linux*)
            LIBZMQ_EXTRA_CXXFLAGS="${LIBZMQ_EXTRA_CXXFLAGS} -Wno-variadic-macros -Wno-long-long "
        ;;
        *solaris*)
        ;;
        *)
            AC_MSG_ERROR([PGM extesion is not supported on this platform $host.])
        ;;
    esac

    AC_CHECK_PROG(have_tar, tar, yes, no)
    if test "x$have_tar" != "xyes"; then
        AC_MSG_ERROR([Could not find tar.])
    fi

    AC_CHECK_PROG(have_bunzip2, bunzip2, yes, no)
    if test "x$have_bunzip2" != "xyes"; then
        AC_MSG_ERROR([Could not find bunzip2.])
    fi

    AC_CHECK_PROG(have_perl, perl, yes, no)
    if test "x$have_perl" != "xyes"; then
        AC_MSG_ERROR([Could not find perl.])
    fi

    if test "x$pyzmq" != "xyes"; then
        AC_CHECK_PROG(have_python, python, yes, no)
        if test "x$have_python" != "xyes"; then
            AC_MSG_ERROR([Could not find python.])
        fi
    fi

    #  Unpack libpgm-1.0.0rc8.tar.bz2
    AC_MSG_CHECKING([Unpacking ${pgm_basename}.tar.bz2])

    if tar -xjf foreign/openpgm/${pgm_basename}.tar.bz2 -C foreign/openpgm/; then
        AC_MSG_RESULT([yes])
    else
        AC_MSG_ERROR([Could not unpack foreign/openpgm/${pgm_basename}.tar.bz2 file])
    fi

    #  Generate galois_tables.c
    AC_CONFIG_COMMANDS([galois_tables.c], 
        [perl foreign/openpgm/libpgm-1.2.14/openpgm/pgm/galois_generator.pl > \
            foreign/openpgm/libpgm-1.2.14/openpgm/pgm/galois_tables.c])

    #  Generate version.c
    AC_CONFIG_COMMANDS([version.c],
        [python foreign/openpgm/libpgm-1.2.14/openpgm/pgm/version_generator.py > \
            foreign/openpgm/libpgm-1.2.14/openpgm/pgm/version.c])

    #  Check for OpenPGM nedded libraries.
    PKG_CHECK_MODULES([GLIB], [glib-2.0 gthread-2.0])

    LIBZMQ_EXTRA_CXXFLAGS="${LIBZMQ_EXTRA_CXXFLAGS} ${GLIB_CFLAGS} "

    LIBZMQ_EXTRA_LDFLAFS="${LIBZMQ_EXTRA_LDFLAFS} ${GLIB_LIBS}"

    AC_DEFINE(ZMQ_HAVE_OPENPGM, 1, [Have OpenPGM extension.])
    pgm_name="$pgm_basename"
    pgm_ext="yes"
fi

# forwarder device
forwarder="no"
AC_ARG_WITH([forwarder], [AS_HELP_STRING([--with-forwarder], 
    [build forwarder device [default=no]])], [with_forwarder=yes], [with_forwarder=no])

if test "x$with_forwarder" != "xno"; then
    forwarder="yes"
fi


# Perf
perf="no"
AC_ARG_WITH([perf], [AS_HELP_STRING([--with-perf], 
    [build performance tests [default=no]])], [with_perf=yes], [with_perf=no])

if test "x$with_perf" != "xno"; then
    perf="yes"

    if test "x$czmq" = "xno" -a "x$cppzmq" = "xno" -a "x$pyzmq" = "xno" -a \
          "x$jzmq" = "xno" -a "x$rbzmq" = "xno"; then
        AC_MSG_ERROR([To run configure with --with-perf option chose at least one language binding.]);
    fi
fi

AM_CONDITIONAL(BUILD_PYTHON, test "x$pyzmq" = "xyes")
AM_CONDITIONAL(BUILD_JAVA, test "x$jzmq" = "xyes")
AM_CONDITIONAL(BUILD_PYTHON, test "x$pyzmq" = "xyes")
AM_CONDITIONAL(BUILD_RUBY, test "x$rbzmq" = "xyes")
AM_CONDITIONAL(BUILD_C, test "x$czmq" = "xyes")
AM_CONDITIONAL(BUILD_CPP, test "x$cppzmq" = "xyes")
AM_CONDITIONAL(BUILD_PGM, test "x$pgm_ext" = "xyes")
AM_CONDITIONAL(BUILD_FORWARDER, test "x$forwarder" = "xyes") 
AM_CONDITIONAL(BUILD_PERF, test "x$perf" = "xyes") 

AC_SUBST(stdint)
AC_SUBST(inttypes)

# Subst LIBZMQ_EXTRA_CXXFLAGS & LDFLAGS
AC_SUBST(LIBZMQ_EXTRA_CXXFLAGS)
AC_SUBST(LIBZMQ_EXTRA_LDFLAFS)


# Checks for library functions.
AC_FUNC_MALLOC
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(perror gettimeofday memset socket getifaddrs freeifaddrs)

AC_OUTPUT(Makefile src/Makefile bindings/python/Makefile \
    bindings/python/setup.py bindings/ruby/Makefile \
    bindings/java/Makefile perf/Makefile perf/c/Makefile perf/cpp/Makefile \
    perf/python/Makefile perf/ruby/Makefile perf/java/Makefile src/libzmq.pc \
    devices/Makefile devices/zmq_forwarder/Makefile bindings/Makefile)

AC_MSG_RESULT([])
AC_MSG_RESULT([ ******************************************************** ])
AC_MSG_RESULT([                            0MQ     ])
AC_MSG_RESULT([ ******************************************************** ])
AC_MSG_RESULT([  This software is distributed under the terms and ])
AC_MSG_RESULT([  conditions of the LESSER GNU GENERAL PUBLIC LICENSE. ])
AC_MSG_RESULT([  See the file COPYING and COPYING.LESSER for the full ])
AC_MSG_RESULT([  license text. ])
AC_MSG_RESULT([ ******************************************************** ])
AC_MSG_RESULT([])
AC_MSG_RESULT([ 0MQ install dir: $prefix])
AC_MSG_RESULT([   Language bindings:])
AC_MSG_RESULT([     C: $czmq])
AC_MSG_RESULT([     C++: $cppzmq])
AC_MSG_RESULT([     Java: $jzmq])
AC_MSG_RESULT([     Python: $pyzmq])
AC_MSG_RESULT([     Ruby: $rbzmq])
if test "x$rbzmq" = "xyes"; then
AC_MSG_RESULT([       Ruby library install dir: $rubydir])
fi
AC_MSG_RESULT([   Network protocols:])
AC_MSG_RESULT([     TCP: yes])
if test "x$pgm_ext" = "xyes"; then
AC_MSG_RESULT([     PGM: $pgm_ext ($pgm_name)])
else
AC_MSG_RESULT([     PGM: $pgm_ext])
fi
AC_MSG_RESULT([   Devices:])
AC_MSG_RESULT([     forwarder: $forwarder])
AC_MSG_RESULT([   Performance tests: $perf]) 
AC_MSG_RESULT([])
AC_MSG_RESULT([ ******************************************************** ])
AC_MSG_RESULT([])