dnl   Copyright (C) 2013-2019 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 dnl   Copyright (C) 2007-2013 Sourcefire, Inc.
 dnl   Copyright (C) 2002-2007 Tomasz Kojm <tkojm@clamav.net>

 dnl   socklen_t check (c) Alexander V. Lukyanov <lav@yars.free.net>

 dnl
 dnl   This program is free software; you can redistribute it and/or modify
 dnl   it under the terms of the GNU General Public License as published by
 dnl   the Free Software Foundation; either version 2 of the License, or
 dnl   (at your option) any later version.
 dnl
 dnl   This program is distributed in the hope that it will be useful,
 dnl   but WITHOUT ANY WARRANTY; without even the implied warranty of
 dnl   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 dnl   GNU General Public License for more details.
 dnl
 dnl   You should have received a copy of the GNU General Public License
 dnl   along with this program; if not, write to the Free Software

 dnl   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 dnl   MA 02110-1301, USA.

 AC_PREREQ([2.59])

 dnl For a release change [devel] to the real version [0.xy]
 dnl also change VERSION below

 AC_INIT([ClamAV], [0.102.0-rc], [https://bugzilla.clamav.net/], [clamav], [https://www.clamav.net/])

 dnl put configure auxiliary into config
 AC_CONFIG_AUX_DIR([config])

 dnl put configure auxiliary into config
 AC_CONFIG_AUX_DIR([config])
 

 dnl enable C++
 AC_PROG_CXX()
 

 AH_BOTTOM([#include "platform.h"])

 AC_CONFIG_HEADERS([clamav-config.h libclammspack/config.h:libclammspack/config.h.in])

 
 dnl safety check, this used to be a parameter to AC_INIT
 AC_CONFIG_SRCDIR([clamscan/clamscan.c])

 AC_CONFIG_MACRO_DIR([m4])
 AC_CREATE_TARGET_H([target.h])

 
 dnl -Wall and -Werror here are NOT CFLAGS, they refer to automake warnings

 dnl enable stealth builds and psychedelic tests

 AM_INIT_AUTOMAKE([1.11 -Wall -Wportability -Wno-override std-options foreign dist-bzip2 no-define color-tests parallel-tests tar-ustar])

 AM_SILENT_RULES([yes])

 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 

 dnl we told automake to not define these, since we want to include
 dnl the date in the version

 AC_DEFINE([PACKAGE], PACKAGE_NAME, [Name of package])

 AC_USE_SYSTEM_EXTENSIONS

 m4_include([m4/reorganization/version.m4])

 LT_CONFIG_LTDL_DIR([libltdl])

 LT_INIT([dlopen disable-static])

 LTDL_INIT([recursive])

 PKG_PROG_PKG_CONFIG(0.16)

 
 m4_include([m4/reorganization/build_tools.m4])
 m4_include([m4/reorganization/headers.m4])
 

 AC_CONFIG_FILES([libltdl/Makefile])

 AC_DEFINE([SCANBUFF], 131072, [scan buffer size])
 AC_DEFINE([FILEBUFF], 8192,   [file i/o buffer size])

 m4_include([m4/reorganization/c_options.m4])
 m4_include([m4/reorganization/compiler_checks.m4])
 m4_include([m4/reorganization/linker_checks.m4])

 AC_ARG_ENABLE([experimental],

 [AS_HELP_STRING([--enable-experimental], [enable experimental code])],

 enable_experimental=$enableval, enable_experimental="no")
 
 if test "$enable_experimental" = "yes"; then

   AC_DEFINE([CL_EXPERIMENTAL],1,[enable experimental code])

   VERSION_SUFFIX="$VERSION_SUFFIX-exp"

 fi
 

 build_configure_args=`echo "$ac_configure_args" | sed -e 's/[\"]//g'`
 AC_SUBST([BUILD_CONFIGURE_FLAGS], [$build_configure_args])
 

 m4_include([m4/reorganization/code_checks/fuzz.m4])

 m4_include([m4/reorganization/code_checks/functions.m4])
 m4_include([m4/reorganization/code_checks/mpool.m4])
 m4_include([m4/reorganization/code_checks/unit_tests.m4])
 m4_include([m4/reorganization/code_checks/coverage.m4])

 dnl libclamav dependencies
 m4_include([m4/reorganization/libs/xml.m4])
 m4_include([m4/reorganization/libs/openssl.m4])

 m4_include([m4/reorganization/libs/json.m4])

 m4_include([m4/reorganization/libs/pcre.m4])

 m4_include([m4/reorganization/libs/libmspack.m4])
 
 if test "x$use_internal_mspack" = "xno"; then
     mspack_msg="External, $LIBMSPACK_CFLAGS $LIBMSPACK_LIBS"
 fi

 AM_MAINTAINER_MODE

 m4_include([m4/reorganization/libs/libz.m4])
 m4_include([m4/reorganization/libs/bzip.m4])
 m4_include([m4/reorganization/libs/unrar.m4])

 m4_include([m4/reorganization/libs/systemd.m4])

 m4_include([m4/reorganization/code_checks/ipv6.m4])
 m4_include([m4/reorganization/code_checks/dns.m4])
 m4_include([m4/reorganization/code_checks/fanotify.m4])
 m4_include([m4/reorganization/code_checks/setpgrp.m4])
 m4_include([m4/reorganization/milter/enable.m4])
 m4_include([m4/reorganization/code_checks/iconv.m4])
 m4_include([m4/reorganization/code_checks/pthreads.m4])
 m4_include([m4/reorganization/code_checks/reentrant.m4])
 m4_include([m4/reorganization/utility_checks/id.m4])
 m4_include([m4/reorganization/utility_checks/yp.m4])
 m4_include([m4/reorganization/usergroup.m4])
 m4_include([m4/reorganization/debug.m4])
 m4_include([m4/reorganization/customversion.m4])
 m4_include([m4/reorganization/nocache.m4])
 m4_include([m4/reorganization/dns.m4])
 m4_include([m4/reorganization/bigstack.m4])
 m4_include([m4/reorganization/dbdir.m4])
 m4_include([m4/reorganization/cfgdir.m4])
 m4_include([m4/reorganization/code_checks/in_port_t.m4])
 m4_include([m4/reorganization/code_checks/in_addr_t.m4])
 m4_include([m4/reorganization/os_checks.m4])
 m4_include([m4/reorganization/milter/check.m4])
 m4_include([m4/reorganization/code_checks/pthread_02.m4])
 m4_include([m4/reorganization/code_checks/ctime.m4])
 m4_include([m4/reorganization/code_checks/socklen_t.m4])
 m4_include([m4/reorganization/clamav_user.m4])
 m4_include([m4/reorganization/code_checks/compiler_attribs.m4])
 m4_include([m4/reorganization/code_checks/select.m4])
 m4_include([m4/reorganization/code_checks/stat64.m4])
 m4_include([m4/reorganization/code_checks/shift.m4])
 m4_include([m4/reorganization/code_checks/features.m4])
 m4_include([m4/reorganization/clamdtop.m4])
 m4_include([m4/reorganization/distcheck.m4])
 m4_include([m4/reorganization/llvm.m4])
 m4_include([m4/reorganization/sha_collect.m4])

 m4_include([m4/reorganization/yara.m4])

 m4_include([m4/reorganization/code_checks/fts.m4])

 m4_include([m4/reorganization/prelude.m4])

 m4_include([m4/reorganization/bsd.m4])
 

 dnl Clamonacc loading
 m4_include([m4/reorganization/clamonacc.m4])
 

 dnl Freshclam dependencies
 m4_include([m4/reorganization/libs/curl.m4])
 m4_include([m4/reorganization/substitutions.m4])

 m4_include([m4/reorganization/strni.m4])
 

 if test "x$use_internal_mspack" = "xyes"; then

     mspack_msg="Internal"

     AC_SYS_LARGEFILE

 else

     mspack_msg="External, $LIBMSPACK_CFLAGS $LIBMSPACK_LIBS"

 fi
 

 dnl Enable Objective-C, needed for macOS, may not be inside conditional.
 AC_PROG_OBJC
 
 dnl Detect the target system

 build_linux=no
 build_windows=no
 build_mac=no
 
 case "${host_os}" in
     cygwin*|mingw*)
         build_windows=yes
         ;;
     darwin*)
         build_mac=yes
         ;;
     *)
         build_linux=yes
         ;;
 esac
 
 AM_CONDITIONAL([LINUX], [test "$build_linux" = "yes"])
 AM_CONDITIONAL([WINDOWS], [test "$build_windows" = "yes"])
 AM_CONDITIONAL([MACOS], [test "$build_mac" = "yes"])
 

 AC_CONFIG_FILES([

 clamscan/Makefile
 database/Makefile
 docs/Makefile
 clamd/Makefile

 clamd/clamav-daemon.service
 clamd/clamav-daemon.socket

 clamdscan/Makefile

 clamsubmit/Makefile

 clamav-milter/Makefile

 freshclam/clamav-freshclam.service

 freshclam/Makefile
 sigtool/Makefile

 clamconf/Makefile

 etc/Makefile

 test/Makefile

 unit_tests/Makefile

 fuzz/Makefile

 clamdtop/Makefile

 clambc/Makefile

 libfreshclam/Makefile

 Makefile

 clamav-config
 libclamav.pc

 platform.h

 docs/man/clamav-milter.8

 docs/man/clamav-milter.conf.5

 docs/man/clambc.1

 docs/man/clamconf.1

 docs/man/clamd.8
 docs/man/clamd.conf.5

 docs/man/clamdscan.1
 docs/man/clamscan.1

 docs/man/freshclam.1
 docs/man/freshclam.conf.5

 docs/man/sigtool.1

 docs/man/clamdtop.1

 docs/man/clamsubmit.1

 clamav-types.h

 clamav-version.h

 ])

 AM_COND_IF([BUILD_CLAMONACC],
            [AC_CONFIG_FILES([clamonacc/Makefile])])
 

 # Define variables needed to generate clamav-types.h.
 m4_include([m4/reorganization/types.m4])
 

 AC_OUTPUT
 

 if test "$enable_llvm" = "yes" && test "$subdirfailed" != "no"; then
     AC_MSG_ERROR([Failed to configure LLVM, and LLVM was explicitly requested])
 fi

 if test "$enable_llvm" = "auto" && test "$subdirfailed" != "no"; then
     system_llvm="MIA"
     llvm_linking=""
 fi
 

 AM_CONDITIONAL([ENABLE_LLVM],

 	       [test "$subdirfailed" != "yes" && test "$enable_llvm" != "no"])

 AM_CONDITIONAL([ENABLE_YARA],
 	       [test "$enable_yara" != "no"])

 AM_CONDITIONAL([ENABLE_CLAMSUBMIT],

 	       [test "X$have_curl" = "Xyes" && test "X$have_json" = "Xyes"])

 no_recursion="yes";

 AC_OUTPUT([libclamav/Makefile])
 

 # Print a summary of what features we enabled
 AC_MSG_NOTICE([Summary of detected features follows])
 
 cat <<EOF
               OS          : $target_os
               pthreads    : $have_pthreads ($THREAD_LIBS)
 EOF
 

 AC_MSG_NOTICE([Summary of miscellaneous features])

 if test "x$CHECK_LIBS" = "x"; then
     check_libs="no"
 else
     check_libs="$CHECK_LIBS"
 fi
 CL_MSG_STATUS([check       ],[$check_libs],[$enable_check_ut])

 CL_MSG_STATUS([fanotify    ],[$have_fanotify],[$have_fanotify])

 if test "x$ac_cv_have_control_in_msghdr" = "xyes"; then
     CL_MSG_STATUS([fdpassing   ],[$have_fdpass],[$want_fdpassing])
 else
     CL_MSG_STATUS([fdpassing   ],[n/a],[])
 fi
 CL_MSG_STATUS([IPv6        ],[$have_cv_ipv6],[$want_ipv6])

 CL_MSG_STATUS([openssl     ],[$LIBSSL_HOME],[yes])
 CL_MSG_STATUS([libcurl     ],[$LIBCURL_HOME],[yes])

 
 AC_MSG_NOTICE([Summary of optional tools])

 
 if test "X$HAVE_LIBNCURSES" = "Xyes" || test "X$HAVE_LIBPDCURSES" = "Xyes"; then
     CL_MSG_STATUS([clamdtop    ],[yes ($CURSES_LIBS)], [yes])
 else
     CL_MSG_STATUS([clamdtop    ],[no (missing ncurses / pdcurses)], [no])
 fi
 
 if test "X$have_milter" = "Xyes"; then
     CL_MSG_STATUS([milter      ],[yes ($CLAMAV_MILTER_LIBS)], [yes])
 else
     CL_MSG_STATUS([milter      ],[no (missing libmilter)], [no])
 fi
 
 if test "X$have_json" = "Xyes"; then
     CL_MSG_STATUS([clamsubmit  ], [yes (libjson-c-dev found at $LIBJSON_HOME)], [yes])

 else

     CL_MSG_STATUS([clamsubmit  ], [no (missing libjson-c-dev. Use the website to submit FPs/FNs.)], [no])

 fi

 AM_COND_IF([BUILD_CLAMONACC],
 	   [CL_MSG_STATUS([clamonacc   ],[yes],[$enable_clamonacc])],
 	   [CL_MSG_STATUS([clamonacc   ],[no],[$enable_clamonacc])])
 
 

 AC_MSG_NOTICE([Summary of engine performance features])

 if test "x$enable_debug" = "xyes"; then
     CL_MSG_STATUS([release mode],[no],[debug build])

 else
     CL_MSG_STATUS([release mode],[yes],[yes])

 fi

 have_jit="no"

 if test "$subdirfailed" = "no"; then

     have_jit="yes"

 fi

 if test "$enable_llvm" = "no"; then
    CL_MSG_STATUS([llvm        ],[$have_jit],[$enable_llvm])

 elif test "x$llvmconfig" = "x"; then
    CL_MSG_STATUS([llvm        ],[$have_jit ($llvmver), from internal],[$enable_llvm])

 else

    CL_MSG_STATUS([llvm        ],[$have_jit ($llvmver), from $llvmconfig ($llvm_linking)],[$enable_llvm])

 fi

 CL_MSG_STATUS([mempool     ],[$have_mempool],[$enable_mempool])
 
 AC_MSG_NOTICE([Summary of engine detection features])

 if test "X$have_iconv" = "Xyes"; then
     CL_MSG_STATUS([iconv       ],[yes, from $ICONV_HOME],[])
 else
     CL_MSG_STATUS([iconv       ],[no],[])
 fi

 CL_MSG_STATUS([bzip2       ],[$bzip_check],[$want_bzip2])

 CL_MSG_STATUS([zlib        ],[$ZLIB_HOME],[yes])
 CL_MSG_STATUS([unrar       ],[$want_unrar],[$want_unrar])

 if test "X$have_json" = "Xyes"; then
     CL_MSG_STATUS([preclass    ],[yes (libjson-c-dev found at $LIBJSON_HOME)],[yes])
 else
     CL_MSG_STATUS([preclass    ],[no (missing libjson-c-dev)],[no])

 fi
 if test "x$PCRE_HOME" = "x"; then
     CL_MSG_STATUS([pcre        ],[no],[$have_pcre])
 else
     CL_MSG_STATUS([pcre        ],[$PCRE_HOME],[$have_pcre])
 fi

 CL_MSG_STATUS([libmspack   ],[yes],[$mspack_msg])

 if test "x$XML_LIBS" = "x"; then

     CL_MSG_STATUS([libxml2     ],[no],[])

 else

     CL_MSG_STATUS([libxml2     ],[yes, from $XML_HOME],[])

 fi

 CL_MSG_STATUS([yara        ],[$enable_yara],[$enable_yara])

 CL_MSG_STATUS([fts         ],[yes],[$lfs_fts_msg])
 

 # Yep, downgrading the compiler avoids the bug too:
 # 4.0.x, and 4.1.0 are the known buggy versions
 # 3.4 doesn't have the bug
 if test "x$gcc_check" != "xyes"; then
 	AC_MSG_WARN([
 ****** Optimizations disabled to avoid compiler bugs
 ****** The resulting binaries will be slow!
 ****** It is recommended to either upgrade or downgrade your compiler
 ])
 fi
 

 if test "x$cross_compiling" != "xno" || test "x$gcc_check" != "xyes" || test "x$zlib_check" = "xno" || test "x$bzip_check" != "xok" ; then

 AC_MSG_WARN([
 ****** WARNING:

 ****** You are cross compiling to a different host or you are
 ****** linking to bugged system libraries or you have manually
 ****** disabled important configure checks.

 ****** Please be aware that this build may be badly broken.
 ****** DO NOT REPORT BUGS BASED ON THIS BUILD !!!
 ])
 fi