dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
AC_PREREQ([2.60])
define(_CLIENT_VERSION_MAJOR, 0)
define(_CLIENT_VERSION_MINOR, 9)
define(_CLIENT_VERSION_REVISION, 5)
define(_CLIENT_VERSION_BUILD, 0)
define(_CLIENT_VERSION_IS_RELEASE, true)
define(_COPYRIGHT_YEAR, 2015)
AC_INIT([Bitcoin Core],[_CLIENT_VERSION_MAJOR._CLIENT_VERSION_MINOR._CLIENT_VERSION_REVISION],[info@bitcoin.org],[bitcoin])
AC_CONFIG_AUX_DIR([src/build-aux])
AC_CONFIG_MACRO_DIR([src/m4])
AC_CANONICAL_HOST
AH_TOP([#ifndef BITCOIN_CONFIG_H])
AH_TOP([#define BITCOIN_CONFIG_H])
AH_BOTTOM([#endif //BITCOIN_CONFIG_H])

# This m4 will only be used if a system copy cannot be found. This is helpful
# on systems where autotools are installed but the pkg-config macros are not in
# a default location. It is currently used for building on OSX where autotools
# are preinstalled but pkg-config comes from macports or homebrew. It should
# probably be removed when building on <= 10.6 is no longer supported.
m4_include([pkg.m4])

dnl faketime breaks configure and is only needed for make. Disable it here.
unset FAKETIME

if test "x${CXXFLAGS+set}" = "xset"; then
  CXXFLAGS_overridden=yes
else
  CXXFLAGS_overridden=no
fi

dnl ==============================================================
dnl Setup for automake
dnl ==============================================================

AM_INIT_AUTOMAKE([no-define subdir-objects foreign])

dnl faketime messes with timestamps and causes configure to be re-run.
dnl --disable-maintainer-mode can be used to bypass this.
AM_MAINTAINER_MODE([enable])

dnl make the compilation flags quiet unless V=1 is used
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

# Enable wallet
AC_ARG_ENABLE([wallet],
  [AS_HELP_STRING([--enable-wallet],
  [enable wallet (default is yes)])],
  [enable_wallet=$enableval],
  [enable_wallet=yes])

AC_ARG_WITH([miniupnpc],
  [AS_HELP_STRING([--with-miniupnpc],
  [enable UPNP (default is yes if libminiupnpc is found)])],
  [use_upnp=$withval],
  [use_upnp=auto])

AC_ARG_ENABLE([upnp-default],
  [AS_HELP_STRING([--enable-upnp-default],
  [if UPNP is enabled, turn it on at startup (default is no)])],
  [use_upnp_default=$enableval],
  [use_upnp_default=no])

AC_ARG_ENABLE(tests,
    AS_HELP_STRING([--enable-tests],[compile tests (default is yes)]),
    [use_tests=$enableval],
    [use_tests=yes])

AC_ARG_WITH([comparison-tool],
    AS_HELP_STRING([--with-comparison-tool],[path to java comparison tool (requires --enable-tests)]),
    [use_comparison_tool=$withval],
    [use_comparison_tool=no])

AC_ARG_ENABLE([comparison-tool-reorg-tests],
    AS_HELP_STRING([--enable-comparison-tool-reorg-tests],[enable expensive reorg tests in the comparison tool (default no)]),
    [use_comparison_tool_reorg_tests=$enableval],
    [use_comparison_tool_reorg_tests=no])

AC_ARG_WITH([qrencode],
  [AS_HELP_STRING([--with-qrencode],
  [enable QR code support (default is yes if qt is enabled and libqrencode is found)])],
  [use_qr=$withval],
  [use_qr=auto])

AC_ARG_ENABLE([hardening],
  [AS_HELP_STRING([--enable-hardening],
  [attempt to harden the resulting executables (default is yes)])],
  [use_hardening=$enableval],
  [use_hardening=yes])

AC_ARG_ENABLE([ccache],
  [AS_HELP_STRING([--enable-ccache],
  [use ccache for building (default is yes if ccache is found)])],
  [use_ccache=$enableval],
  [use_ccache=auto])

AC_ARG_ENABLE([lcov],
  [AS_HELP_STRING([--enable-lcov],
  [enable lcov testing (default is no)])],
  [use_lcov=yes],
  [use_lcov=no])

AC_ARG_ENABLE([glibc-back-compat],
  [AS_HELP_STRING([--enable-glibc-back-compat],
  [enable backwards compatibility with glibc and libstdc++])],
  [use_glibc_compat=$enableval],
  [use_glibc_compat=no])

AC_ARG_WITH([protoc-bindir],[AS_HELP_STRING([--with-protoc-bindir=BIN_DIR],[specify protoc bin path])], [protoc_bin_path=$withval], [])


AC_CONFIG_SRCDIR([src])
AC_CONFIG_HEADERS([src/bitcoin-config.h])

dnl Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXXCPP
AC_PROG_INSTALL
AC_PROG_OBJC
AC_PROG_LN_S
m4_ifdef([AC_PROG_OBJCXX],[AC_PROG_OBJCXX])
AC_PROG_MKDIR_P
AC_PROG_SED
AC_PATH_TOOL(AR, ar)
AC_PATH_TOOL(RANLIB, ranlib)
AC_PATH_TOOL(STRIP, strip)
AC_PATH_TOOL(GCOV, gcov)
AC_PATH_PROG(LCOV, lcov)
AC_PATH_PROG(JAVA, java)
AC_PATH_PROG(GENHTML, genhtml)
AC_PATH_PROG([GIT], [git])
AC_PATH_PROG(CCACHE,ccache)
AC_PATH_PROG(XGETTEXT,xgettext)
AC_PATH_PROG(HEXDUMP,hexdump)
PKG_PROG_PKG_CONFIG

# Enable debug 
AC_ARG_ENABLE([debug],
    [AS_HELP_STRING([--enable-debug],
                    [use debug compiler flags and macros (default is no)])],
    [enable_debug=$enableval],
    [enable_debug=no])

if test "x$enable_debug" = xyes; then
    if test "x$GCC" = xyes; then
        CFLAGS="-g3 -O0 -DDEBUG"
    fi
    
    if test "x$GXX" = xyes; then
        CXXFLAGS="-g3 -O0 -DDEBUG"
    fi
fi 

## TODO: Remove these hard-coded paths and flags. They are here for the sake of
##       compatibility with the legacy buildsystem.
##
if test "x$CXXFLAGS_overridden" = "xno"; then
  CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter"
fi
CPPFLAGS="$CPPFLAGS -DBOOST_SPIRIT_THREADSAFE -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"

AC_LANG_PUSH([C++])

use_pkgconfig=yes
case $host in
  *mingw*)

     #pkgconfig does more harm than good with MinGW
     use_pkgconfig=no

     TARGET_OS=windows
     AC_CHECK_LIB([mingwthrd],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([kernel32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([user32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([gdi32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([comdlg32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([winspool],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([winmm],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([shell32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([comctl32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([ole32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([oleaut32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([uuid],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([rpcrt4],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([advapi32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([ws2_32],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([mswsock],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([shlwapi],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([iphlpapi],      [main],, AC_MSG_ERROR(lib missing))
     AC_CHECK_LIB([crypt32],      [main],, AC_MSG_ERROR(lib missing))

     AX_CHECK_LINK_FLAG([[-static]],[LDFLAGS="$LDFLAGS -static"])
     AX_CHECK_LINK_FLAG([[-static-libgcc]],[LDFLAGS="$LDFLAGS -static-libgcc"])
     AX_CHECK_LINK_FLAG([[-static-libstdc++]],[LDFLAGS="$LDFLAGS -static-libstdc++"])

     AC_PATH_PROG([MAKENSIS], [makensis], none)
     if test x$MAKENSIS = xnone; then
       AC_MSG_WARN("makensis not found. Cannot create installer.")
     fi

     AC_PATH_TOOL(WINDRES, windres, none)
     if test x$WINDRES = xnone; then
       AC_MSG_ERROR("windres not found")
     fi

     CPPFLAGS="$CPPFLAGS -D_MT -DWIN32 -D_WINDOWS -DBOOST_THREAD_USE_LIB"
     LEVELDB_TARGET_FLAGS="TARGET_OS=OS_WINDOWS_CROSSCOMPILE"
     if test "x$CXXFLAGS_overridden" = "xno"; then
       CXXFLAGS="$CXXFLAGS -w"
     fi
     case $host in
       i?86-*) WINDOWS_BITS=32 ;;
       x86_64-*) WINDOWS_BITS=64 ;;
       *) AC_MSG_ERROR("Could not determine win32/win64 for installer") ;;
     esac
     AC_SUBST(WINDOWS_BITS)
     ;;
  *darwin*)
     TARGET_OS=darwin
     LEVELDB_TARGET_FLAGS="TARGET_OS=Darwin"
     if  test x$cross_compiling != xyes; then
       BUILD_OS=darwin
       AC_CHECK_PROG([PORT],port, port)
       if test x$PORT = xport; then
         dnl add default macports paths
         CPPFLAGS="$CPPFLAGS -isystem /opt/local/include -I/opt/local/include/db48"
         LIBS="$LIBS -L/opt/local/lib -L/opt/local/lib/db48"
       fi

       AC_CHECK_PROG([BREW],brew, brew)
       if test x$BREW = xbrew; then
         dnl These Homebrew packages may be bottled, meaning that they won't be found
         dnl in expected paths because they may conflict with system files. Ask
         dnl Homebrew where each one is located, then adjust paths accordingly.
         dnl It's safe to add these paths even if the functionality is disabled by
         dnl the user (--without-wallet or --without-gui for example).

         openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
         bdb_prefix=`$BREW --prefix berkeley-db4 2>/dev/null`
         qt5_prefix=`$BREW --prefix qt5 2>/dev/null`
         if test x$openssl_prefix != x; then
           export PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
         fi
         if test x$bdb_prefix != x; then
           CPPFLAGS="$CPPFLAGS -I$bdb_prefix/include"
           LIBS="$LIBS -L$bdb_prefix/lib"
         fi
         if test x$qt5_prefix != x; then
           export PKG_CONFIG_PATH="$qt5_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
         fi
       fi
     else
       case $build_os in
         *darwin*)
           BUILD_OS=darwin
           ;;
         *)
           AC_PATH_TOOL([INSTALLNAMETOOL], [install_name_tool], install_name_tool)
           AC_PATH_TOOL([OTOOL], [otool], otool)
           AC_PATH_PROGS([GENISOIMAGE], [genisoimage mkisofs],genisoimage)
           ;;
       esac
     fi

     CPPFLAGS="$CPPFLAGS -DMAC_OSX"
     ;;
   *)
     ;;
esac

if test x$use_comparison_tool != xno; then
  AC_SUBST(JAVA_COMPARISON_TOOL, $use_comparison_tool)
fi

if test x$use_comparison_tool_reorg_tests != xno; then
  if test x$use_comparison_tool == x; then
    AC_MSG_ERROR("comparison tool reorg tests but comparison tool was not specified")
  fi
  AC_SUBST(COMPARISON_TOOL_REORG_TESTS, 1)
else
  AC_SUBST(COMPARISON_TOOL_REORG_TESTS, 0)
fi

if test x$use_lcov == xyes; then
  if test x$LCOV == x; then
    AC_MSG_ERROR("lcov testing requested but lcov not found")
  fi
  if test x$GCOV == x; then
    AC_MSG_ERROR("lcov testing requested but gcov not found")
  fi
  if test x$JAVA == x; then
    AC_MSG_ERROR("lcov testing requested but java not found")
  fi
  if test x$GENHTML == x; then
    AC_MSG_ERROR("lcov testing requested but genhtml not found")
  fi
  if test x$use_comparison_tool == x; then
    AC_MSG_ERROR("lcov testing requested but comparison tool was not specified")
  fi
  LCOV="$LCOV --gcov-tool=$GCOV"
  AX_CHECK_COMPILE_FLAG([--coverage],[CXXFLAGS="$CXXFLAGS --coverage"],
    [AC_MSG_ERROR("lcov testing requested but --coverage flag does not work")])
fi

dnl Require little endian
AC_C_BIGENDIAN([AC_MSG_ERROR("Big Endian not supported")])

dnl Check for pthread compile/link requirements
AX_PTHREAD
INCLUDES="$INCLUDES $PTHREAD_CFLAGS"

# The following macro will add the necessary defines to bitcoin-config.h, but
# they also need to be passed down to any subprojects. Pull the results out of
# the cache and add them to CPPFLAGS.
AC_SYS_LARGEFILE
# detect POSIX or GNU variant of strerror_r
AC_FUNC_STRERROR_R

if test x$ac_cv_sys_file_offset_bits != x &&
   test x$ac_cv_sys_file_offset_bits != xno &&
   test x$ac_cv_sys_file_offset_bits != xunknown; then
  CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
fi

if test x$ac_cv_sys_large_files != x &&
   test x$ac_cv_sys_large_files != xno &&
   test x$ac_cv_sys_large_files != xunknown; then
  CPPFLAGS="$CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
fi

AX_CHECK_LINK_FLAG([[-Wl,--large-address-aware]], [LDFLAGS="$LDFLAGS -Wl,--large-address-aware"])

if test x$use_glibc_compat != xno; then

  #__fdelt_chk's params and return type have changed from long unsigned int to long int.
  # See which one is present here.
  AC_MSG_CHECKING(__fdelt_chk type)
  AC_TRY_COMPILE([#ifdef _FORTIFY_SOURCE
                    #undef _FORTIFY_SOURCE
                  #endif
                  #define _FORTIFY_SOURCE 2
                  #include <sys/select.h>
     extern "C" long unsigned int __fdelt_warn(long unsigned int);],[],
    [ fdelt_type="long unsigned int"],
    [ fdelt_type="long int"])
  AC_MSG_RESULT($fdelt_type)
  AC_DEFINE_UNQUOTED(FDELT_TYPE, $fdelt_type,[parameter and return value type for __fdelt_chk])

fi

if test x$use_hardening != xno; then
  AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"])
  AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"])
  AX_CHECK_COMPILE_FLAG([-fPIE],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fPIE"])

  AX_CHECK_PREPROC_FLAG([-D_FORTIFY_SOURCE=2],[
    AX_CHECK_PREPROC_FLAG([-U_FORTIFY_SOURCE],[
      HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -U_FORTIFY_SOURCE"
    ])
    HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -D_FORTIFY_SOURCE=2"
  ])

  AX_CHECK_LINK_FLAG([[-Wl,--dynamicbase]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--dynamicbase"])
  AX_CHECK_LINK_FLAG([[-Wl,--nxcompat]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--nxcompat"])
  AX_CHECK_LINK_FLAG([[-Wl,-z,relro]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,relro"])
  AX_CHECK_LINK_FLAG([[-Wl,-z,now]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,now"])

  if test x$TARGET_OS != xwindows; then
    # -pie will link successfully with MinGW, but it's unsupported and leads to undeterministic binaries
    AX_CHECK_LINK_FLAG([[-pie]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -pie"])
  fi

  CXXFLAGS="$CXXFLAGS $HARDENED_CXXFLAGS"
  CPPFLAGS="$CPPFLAGS $HARDENED_CPPFLAGS"
  LDFLAGS="$LDFLAGS $HARDENED_LDFLAGS"
  OBJCXXFLAGS="$CXXFLAGS"
fi

dnl this flag screws up non-darwin gcc even when the check fails. special-case it.
if test x$TARGET_OS = xdarwin; then
  AX_CHECK_LINK_FLAG([[-Wl,-dead_strip]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"])
fi

AC_CHECK_HEADERS([stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h])

dnl Check for MSG_NOSIGNAL
AC_MSG_CHECKING(for MSG_NOSIGNAL)
AC_TRY_COMPILE([#include <sys/socket.h>],
 [ int f = MSG_NOSIGNAL; ],
 [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MSG_NOSIGNAL, 1,[Define this symbol if you have MSG_NOSIGNAL]) ],
 [ AC_MSG_RESULT(no)]
)

LEVELDB_CPPFLAGS=
LIBLEVELDB=
LIBMEMENV=
AM_CONDITIONAL([EMBEDDED_LEVELDB],[true])
AC_SUBST(LEVELDB_CPPFLAGS)
AC_SUBST(LIBLEVELDB)
AC_SUBST(LIBMEMENV)

if test x$enable_wallet != xno; then
    dnl Check for libdb_cxx only if wallet enabled
    BITCOIN_FIND_BDB48
fi

dnl Check for libminiupnpc (optional)
if test x$use_upnp != xno; then
  AC_CHECK_HEADERS(
    [miniupnpc/miniwget.h miniupnpc/miniupnpc.h miniupnpc/upnpcommands.h miniupnpc/upnperrors.h],
    [AC_CHECK_LIB([miniupnpc], [main],, [have_miniupnpc=no])],
    [have_miniupnpc=no]
  )
fi

dnl Check for boost libs
AX_BOOST_BASE
AX_BOOST_SYSTEM
AX_BOOST_FILESYSTEM
AX_BOOST_PROGRAM_OPTIONS
AX_BOOST_THREAD
AX_BOOST_CHRONO

if test x$use_tests = xyes; then

  if test x$HEXDUMP = x; then
    AC_MSG_ERROR(hexdump is required for tests)
  fi


  AX_BOOST_UNIT_TEST_FRAMEWORK

  dnl Determine if -DBOOST_TEST_DYN_LINK is needed
  AC_MSG_CHECKING([for dynamic linked boost test])
  TEMP_LIBS="$LIBS"
  LIBS="$LIBS $BOOST_LDFLAGS $BOOST_UNIT_TEST_FRAMEWORK_LIB"
  TEMP_CPPFLAGS="$CPPFLAGS"
  CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  AC_LINK_IFELSE([AC_LANG_SOURCE([
       #define BOOST_TEST_DYN_LINK
       #define BOOST_TEST_MAIN
        #include <boost/test/unit_test.hpp>

       ])],
    [AC_MSG_RESULT(yes)]
    [TESTDEFS="$TESTDEFS -DBOOST_TEST_DYN_LINK"],
    [AC_MSG_RESULT(no)])
  LIBS="$TEMP_LIBS"
  CPPFLAGS="$TEMP_CPPFLAGS"
fi

BOOST_LIBS="$BOOST_LDFLAGS $BOOST_SYSTEM_LIB $BOOST_FILESYSTEM_LIB $BOOST_PROGRAM_OPTIONS_LIB $BOOST_THREAD_LIB"
BOOST_INCLUDES="$BOOST_CPPFLAGS"

dnl Boost >= 1.50 uses sleep_for rather than the now-deprecated sleep, however
dnl it was broken from 1.50 to 1.52 when backed by nanosleep. Use sleep_for if
dnl a working version is available, else fall back to sleep. sleep was removed
dnl after 1.56.
dnl If neither is available, abort.
dnl If sleep_for is used, boost_chrono becomes a requirement.
if test x$ax_cv_boost_chrono = xyes; then
dnl Allow passing extra needed dependency libraries for boost-chrono from static gitian build
BOOST_CHRONO_LIB="$BOOST_CHRONO_LIB $BOOST_CHRONO_EXTRALIBS"

TEMP_LIBS="$LIBS"
LIBS="$LIBS $BOOST_LIBS $BOOST_CHRONO_LIB"
TEMP_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
AC_TRY_LINK([
  #include <boost/thread/thread.hpp>
  #include <boost/version.hpp>
  ],[
  #if BOOST_VERSION >= 105000 && (!defined(BOOST_HAS_NANOSLEEP) || BOOST_VERSION >= 105200)
      boost::this_thread::sleep_for(boost::chrono::milliseconds(0));
  #else
   choke me
  #endif
  ],
  [boost_sleep=yes; BOOST_LIBS="$BOOST_LIBS $BOOST_CHRONO_LIB";
     AC_DEFINE(HAVE_WORKING_BOOST_SLEEP_FOR, 1, [Define this symbol if boost sleep_for works])],
  [boost_sleep=no])
LIBS="$TEMP_LIBS"
CPPFLAGS="$TEMP_CPPFLAGS"
fi

if test x$boost_sleep != xyes; then
TEMP_LIBS="$LIBS"
LIBS="$LIBS $BOOST_LIBS"
TEMP_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
AC_TRY_LINK([
  #include <boost/version.hpp>
  #include <boost/thread.hpp>
  #include <boost/date_time/posix_time/posix_time_types.hpp>
  ],[
  #if BOOST_VERSION <= 105600
      boost::this_thread::sleep(boost::posix_time::milliseconds(0));
  #else
   choke me
  #endif
  ],
  [boost_sleep=yes; AC_DEFINE(HAVE_WORKING_BOOST_SLEEP, 1, [Define this symbol if boost sleep works])],
  [boost_sleep=no])
LIBS="$TEMP_LIBS"
CPPFLAGS="$TEMP_CPPFLAGS"
fi

if test x$boost_sleep != xyes; then
  AC_MSG_ERROR(No working boost sleep implementation found.)
fi

AC_ARG_WITH([cli],
  [AS_HELP_STRING([--with-cli],
  [with CLI (default is yes)])],
  [build_bitcoin_cli=$withval],
  [build_bitcoin_cli=yes])

AC_ARG_WITH([daemon],
  [AS_HELP_STRING([--with-daemon],
  [with daemon (default is yes)])],
  [build_bitcoind=$withval],
  [build_bitcoind=yes])

BITCOIN_QT_INIT

if test x$use_pkgconfig = xyes; then

  if test x$PKG_CONFIG == x; then
    AC_MSG_ERROR(pkg-config not found.)
  fi

  : #NOP
  m4_ifdef(
    [PKG_CHECK_MODULES],
    [
      PKG_CHECK_MODULES([SSL], [libssl], [INCLUDES="$INCLUDES $SSL_CFLAGS"; LIBS="$LIBS $SSL_LIBS"], [AC_MSG_ERROR(openssl  not found.)])
      PKG_CHECK_MODULES([CRYPTO], [libcrypto], [INCLUDES="$INCLUDES $CRYPTO_CFLAGS"; LIBS="$LIBS $CRYPTO_LIBS"], [AC_MSG_ERROR(libcrypto  not found.)])
      BITCOIN_QT_CHECK([PKG_CHECK_MODULES([PROTOBUF], [protobuf], [have_protobuf=yes], [BITCOIN_QT_FAIL(libprotobuf not found)])])
      if test x$use_qr != xno; then
        BITCOIN_QT_CHECK([PKG_CHECK_MODULES([QR], [libqrencode], [have_qrencode=yes], [have_qrencode=no])])
      fi
    ]
  )
else
  AC_CHECK_HEADER([openssl/crypto.h],,AC_MSG_ERROR(libcrypto headers missing))
  AC_CHECK_LIB([crypto],      [main],, AC_MSG_ERROR(libcrypto missing))

  AC_CHECK_HEADER([openssl/ssl.h],, AC_MSG_ERROR(libssl headers missing),)
  AC_CHECK_LIB([ssl],         [main],, AC_MSG_ERROR(libssl missing))

  BITCOIN_QT_CHECK(AC_CHECK_LIB([protobuf] ,[main],,BITCOIN_QT_FAIL(libprotobuf not found)))
  if test x$use_qr != xno; then
    BITCOIN_QT_CHECK([AC_CHECK_LIB([qrencode], [main],, [have_qrencode=no])])
    BITCOIN_QT_CHECK([AC_CHECK_HEADER([qrencode.h],, have_qrencode=no)])
  fi
fi

BITCOIN_QT_PATH_PROGS([PROTOC], [protoc],$protoc_bin_path)

AC_MSG_CHECKING([whether to build bitcoind])
AM_CONDITIONAL([BUILD_BITCOIND], [test x$build_bitcoind = xyes])
AC_MSG_RESULT($build_bitcoind)

AC_MSG_CHECKING([whether to build bitcoin-cli])
AM_CONDITIONAL([BUILD_BITCOIN_CLI], [test x$build_bitcoin_cli = xyes])
AC_MSG_RESULT($build_bitcoin_cli)

dnl sets $bitcoin_enable_qt, $bitcoin_enable_qt_test, $bitcoin_enable_qt_dbus
BITCOIN_QT_CONFIGURE([$use_pkgconfig], [qt4])

AC_LANG_POP

if test "x$use_ccache" != "xno"; then
  AC_MSG_CHECKING(if ccache should be used)
  if test x$CCACHE = x; then
    if test "x$use_ccache" = "xyes"; then
      AC_MSG_ERROR([ccache not found.]);
    else
      use_ccache=no
    fi
  else
    use_ccache=yes
    CC="$ac_cv_path_CCACHE $CC"
    CXX="$ac_cv_path_CCACHE $CXX"
  fi
  AC_MSG_RESULT($use_ccache)
fi

dnl enable wallet
AC_MSG_CHECKING([if wallet should be enabled])
if test x$enable_wallet != xno; then
  AC_MSG_RESULT(yes)
  AC_DEFINE_UNQUOTED([ENABLE_WALLET],[1],[Define to 1 to enable wallet functions])

else
  AC_MSG_RESULT(no)
fi

dnl enable upnp support
AC_MSG_CHECKING([whether to build with support for UPnP])
if test x$have_miniupnpc = xno; then
  if test x$use_upnp = xyes; then
     AC_MSG_ERROR("UPnP requested but cannot be built. use --without-miniupnpc")
  fi
  AC_MSG_RESULT(no)
else
  if test x$use_upnp != xno; then
    AC_MSG_RESULT(yes)
    AC_MSG_CHECKING([whether to build with UPnP enabled by default])
    use_upnp=yes
    upnp_setting=0
    if test x$use_upnp_default != xno; then
      use_upnp_default=yes
      upnp_setting=1
    fi
    AC_MSG_RESULT($use_upnp_default)
    AC_DEFINE_UNQUOTED([USE_UPNP],[$upnp_setting],[UPnP support not compiled if undefined, otherwise value (0 or 1) determines default state])
    if test x$TARGET_OS = xwindows; then
      CPPFLAGS="$CPPFLAGS -DMINIUPNP_STATICLIB"
    fi
  else
    AC_MSG_RESULT(no)
  fi
fi

dnl these are only used when qt is enabled
if test x$bitcoin_enable_qt != xno; then
  BUILD_QT=qt
  dnl enable dbus support
  AC_MSG_CHECKING([whether to build GUI with support for D-Bus])
  if test x$bitcoin_enable_qt_dbus != xno; then
    AC_DEFINE([USE_DBUS],[1],[Define if dbus support should be compiled in])
  fi
  AC_MSG_RESULT($bitcoin_enable_qt_dbus)

  dnl enable qr support
  AC_MSG_CHECKING([whether to build GUI with support for QR codes])
  if test x$have_qrencode = xno; then
    if test x$use_qr == xyes; then
     AC_MSG_ERROR("QR support requested but cannot be built. use --without-qrencode")
    fi
    AC_MSG_RESULT(no)
  else
    if test x$use_qr != xno; then
      AC_MSG_RESULT(yes)
      AC_DEFINE([USE_QRCODE],[1],[Define if QR support should be compiled in])
      use_qr=yes
    else
      AC_MSG_RESULT(no)
    fi
  fi

  if test x$XGETTEXT == x; then
    AC_MSG_WARN("xgettext is required to update qt translations")
  fi

  AC_MSG_CHECKING([whether to build test_bitcoin-qt])
  if test x$use_tests$bitcoin_enable_qt_test = xyesyes; then
    AC_MSG_RESULT([yes])
    BUILD_TEST_QT="test"
  else
    AC_MSG_RESULT([no])
  fi
fi

AC_MSG_CHECKING([whether to build test_bitcoin])
if test x$use_tests = xyes; then
  AC_MSG_RESULT([yes])
  BUILD_TEST="test"
else
  AC_MSG_RESULT([no])
fi

if test "x$use_tests$build_bitcoind$use_qt" = "xnonono"; then
  AC_MSG_ERROR([No targets! Please specify at least one of: --enable-cli --enable-daemon --enable-gui or --enable-tests])
fi

AM_CONDITIONAL([TARGET_DARWIN], [test x$TARGET_OS = xdarwin])
AM_CONDITIONAL([BUILD_DARWIN], [test x$BUILD_OS = xdarwin])
AM_CONDITIONAL([TARGET_WINDOWS], [test x$TARGET_OS = xwindows])
AM_CONDITIONAL([ENABLE_WALLET],[test x$enable_wallet == xyes])
AM_CONDITIONAL([USE_QRCODE], [test x$use_qr = xyes])
AM_CONDITIONAL([USE_LCOV],[test x$use_lcov == xyes])
AM_CONDITIONAL([USE_COMPARISON_TOOL],[test x$use_comparison_tool != xno])
AM_CONDITIONAL([USE_COMPARISON_TOOL_REORG_TESTS],[test x$use_comparison_tool_reorg_test != xno])
AM_CONDITIONAL([GLIBC_BACK_COMPAT],[test x$use_glibc_compat = xyes])

AC_DEFINE(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR, [Major version])
AC_DEFINE(CLIENT_VERSION_MINOR, _CLIENT_VERSION_MINOR, [Minor version])
AC_DEFINE(CLIENT_VERSION_REVISION, _CLIENT_VERSION_REVISION, [Build revision])
AC_DEFINE(CLIENT_VERSION_BUILD, _CLIENT_VERSION_BUILD, [Version Build])
AC_DEFINE(CLIENT_VERSION_IS_RELEASE, _CLIENT_VERSION_IS_RELEASE, [Version is release])
AC_DEFINE(COPYRIGHT_YEAR, _COPYRIGHT_YEAR, [Version is release])
AC_SUBST(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR)
AC_SUBST(CLIENT_VERSION_MINOR, _CLIENT_VERSION_MINOR)
AC_SUBST(CLIENT_VERSION_REVISION, _CLIENT_VERSION_REVISION)
AC_SUBST(CLIENT_VERSION_BUILD, _CLIENT_VERSION_BUILD)
AC_SUBST(CLIENT_VERSION_IS_RELEASE, _CLIENT_VERSION_IS_RELEASE)
AC_SUBST(COPYRIGHT_YEAR, _COPYRIGHT_YEAR)


AC_SUBST(USE_UPNP)
AC_SUBST(USE_QRCODE)
AC_SUBST(INCLUDES)
AC_SUBST(BOOST_LIBS)
AC_SUBST(TESTDEFS)
AC_SUBST(LEVELDB_TARGET_FLAGS)
AC_SUBST(BUILD_TEST)
AC_SUBST(BUILD_QT)
AC_SUBST(BUILD_TEST_QT)
AC_CONFIG_FILES([Makefile src/Makefile src/test/Makefile src/qt/Makefile src/qt/test/Makefile share/setup.nsi share/qt/Info.plist])
AC_CONFIG_FILES([qa/pull-tester/run-bitcoind-for-test.sh],[chmod +x qa/pull-tester/run-bitcoind-for-test.sh])
AC_CONFIG_FILES([qa/pull-tester/build-tests.sh],[chmod +x qa/pull-tester/build-tests.sh])
AC_OUTPUT