collabora-online/configure.ac

# -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])

AC_INIT([loolwsd], [master], [libreoffice@lists.freedesktop.org])
LT_INIT([shared, disable-static, dlopen])

AM_INIT_AUTOMAKE([1.10 subdir-objects tar-pax -Wno-portability])

AC_CONFIG_MACRO_DIR([m4])

# We don't want to require pkg-config and PKG_CHECK_MODULES on macOS
m4_if(m4_esyscmd_s([uname -s]),Linux,[],[m4_define([PKG_CHECK_MODULES],[])])

LOOLWSD_VERSION_MAJOR=`echo $VERSION | awk -F. '{print $1}'`
LOOLWSD_VERSION_MINOR=`echo $VERSION | awk -F. '{print $2}'`
LOOLWSD_VERSION_MICRO=`echo $VERSION | awk -F. '{print $3}'`
LOOLWSD_VERSION="$LOOLWSD_VERSION_MAJOR.$LOOLWSD_VERSION_MINOR.$LOOLWSD_VERSION_MICRO"

AC_SUBST([LOOLWSD_VERSION_MAJOR])
AC_SUBST([LOOLWSD_VERSION_MINOR])
AC_SUBST([LOOLWSD_VERSION_MICRO])
AC_SUBST([LOOLWSD_VERSION])

AC_DEFINE_UNQUOTED([LOOLWSD_VERSION],[["$LOOLWSD_VERSION"]],[LibreOffice Online WebSocket server version])

# try to add a git hash for a version if we're developing
LOOLWSD_VERSION_HASH="$LOOLWSD_VERSION"
git_hash=`cd ${srcdir} && ( cat dist_git_hash 2> /dev/null || git log -1 --format=%h 2> /dev/null )`
if test "z$git_hash" != "z"; then
   LOOLWSD_VERSION_HASH=$git_hash
fi
AC_SUBST([LOOLWSD_VERSION_HASH])

AC_DEFINE_UNQUOTED([LOOLWSD_VERSION_HASH],[["$LOOLWSD_VERSION_HASH"]],[LibreOffice Online git hash if present])

AC_CONFIG_SRCDIR([wsd/LOOLWSD.cpp])

AC_CONFIG_HEADERS([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC

AC_LANG_PUSH([C++])

AS_IF([test `uname -s` = Linux],
      [AC_PATH_PROG([SETCAP], setcap,[],[/bin:/usr/bin:/sbin:/usr/sbin])]
       AS_IF([test -z "$SETCAP"],
       [AC_MSG_ERROR([The setcap command is needed. It might be in a package called libcap-progs.])]))

# Declare options
AC_ARG_ENABLE([debug],
              AS_HELP_STRING([--enable-debug],
                             [Enable debugging, link with debugging version of Poco libraries]))

AC_ARG_ENABLE([anonymize-usernames],
              AS_HELP_STRING([--enable-anonymize-usernames],
                             [Enable anonymization/obfuscation of usernames in logs]))

AC_ARG_ENABLE([anonymize-filenames],
              AS_HELP_STRING([--enable-anonymize-filenames],
                             [Enable anonymization/obfuscation of filenames in logs]))

AC_ARG_ENABLE([iosapp],
              AS_HELP_STRING([--enable-iosapp],
                             [Use in a tree where the only purpose is to build the HTML and CSS stuff
                              to be copied to a Mac where the iOS app is being built, *or* in a tree where
                              you will build the iOS app.]))

AC_ARG_WITH([iosapp-name],
              AS_HELP_STRING([--with-iosapp-name=<name>],
                             [Set the user-visible name of the iOS app you build. Default "Mobile".]))

AC_ARG_WITH([iosapp-appicon],
              AS_HELP_STRING([--with-iosapp-appicon=<path>],
                             [Point to a directory containing an icon set to use instead of the default empty one.]))

AC_ARG_WITH([iosapp-fonts],
              AS_HELP_STRING([--with-iosapp-fonts=<path>],
                             [Point to a directory containing .ttf or .otf files to be bundled in the iOS app (and
                              thus installed on the device for use of the LO core code).]))

AC_ARG_ENABLE([gtkapp],
              AS_HELP_STRING([--enable-gtkapp],
                             [Use in a tree where the only purpose is to build the gtk+ "app" that is supposed
                              to work similarly to the iOS app, from the JavaScript and the pseudo WebSocket
                              message plumbing point of view. See gtk/README.]))

AC_ARG_ENABLE([androidapp],
              AS_HELP_STRING([--enable-androidapp],
                             [Use in a tree where the only purpose is to build the Android app that is supposed
                              to work similarly to the iOS app, from the JavaScript and the pseudo WebSocket
                              message plumbing point of view.]))

AC_ARG_ENABLE([seccomp],
              AS_HELP_STRING([--disable-seccomp],
                             [Disable use of linux/seccomp.h header when kernel on target system does not support it.
                              Beware of the security consequences!]))
AC_ARG_WITH([lokit-path],
            AS_HELP_STRING([--with-lokit-path=<path>],
                           [Path to the "include" directory with the LibreOfficeKit headers]))

AC_ARG_WITH([lo-path],
            AS_HELP_STRING([--with-lo-path=<path>],
                           [Path to a working installation directory or instdir of LibreOffice]))

AC_ARG_WITH([lo-builddir],
            AS_HELP_STRING([--with-lo-builddir=<path>],
                           [Mandatory, and relevant, in a tree where building the iOS app.
                            Path to a the build directory of the LibreOffice core source tree you want to use.
                            In addition you MUST manually edit the ios/Mobile.xcodeproj/project.pbxproj
                            file and change the references to "../ios-device" to refer to the corresponding
                            LibreOffice core source directory (which typically would be the same as the build
                            directory you specify with this option).]))

AC_ARG_WITH([logfile],
            AS_HELP_STRING([--with-logfile=<path>],
                           [Path to the location of the logfile.]))

AC_ARG_WITH([poco-includes],
            AS_HELP_STRING([--with-poco-includes=<path>],
                           [Path to the "include" directory with the Poco headers]))

AC_ARG_WITH([poco-libs],
            AS_HELP_STRING([--with-poco-libs=<path>],
                           [Path to the "lib" directory with the Poco libraries]))

AC_ARG_WITH([libpng-includes],
            AS_HELP_STRING([--with-libpng-includes=<path>],
                           [Path to the "include" directory with the libpng headers]))

AC_ARG_WITH([libpng-libs],
            AS_HELP_STRING([--with-libpng-libs=<path>],
                           [Path to the "lib" directory with the libpng libraries]))

AC_ARG_WITH([cppunit-includes],
            AS_HELP_STRING([--with-cppunit-includes=<path>],
                           [Path to the "include" directory with the Cppunit headers]))

AC_ARG_WITH([cppunit-libs],
            AS_HELP_STRING([--with-cppunit-libs=<path>],
                           [Path to the "lib" directory with the Cppunit libraries]))

AC_ARG_ENABLE([ssl],
            AS_HELP_STRING([--disable-ssl],
                           [Compile without SSL support]))

AC_ARG_WITH([support-public-key],
            AS_HELP_STRING([--with-support-public-key=<public-key-name.pub>],
                [Implements signed key with expiration required for support. Targeted at LibreOffice Online Service Providers.]))

AC_ARG_WITH([max-connections],
            AS_HELP_STRING([--with-max-connections],
                           [Set the limit on the total number of client connections. Def: 20, Min: 3.]))

AC_ARG_WITH([max-documents],
             AS_HELP_STRING([--with-max-documents],
                           [Set the limit on the total number of documents. Def: 10, Min: 2.]))

AC_ARG_WITH([compiler-plugins],
            AS_HELP_STRING([--with-compiler-plugins=<path>],
                [Experimental! Unlikely to work for anyone except Noel! Enable compiler plugins that will perform additional checks during
                 building.]))

AC_ARG_ENABLE([setcap],
            AS_HELP_STRING([--disable-setcap],
                          [Do not set capabilities on files. For packaging builds]))

AC_ARG_ENABLE([werror],
            AS_HELP_STRING([--disable-werror],
                          [Do not turn warnings into errors.]))

AC_ARG_ENABLE([vereign],
            AS_HELP_STRING([--enable-vereign],
                          [Set Vereign document_signing_url configuration key to the default app.vereign.com.]))
# Handle options
AS_IF([test "$enable_debug" = yes -a -n "$with_poco_libs"],
      [POCO_DEBUG_SUFFIX=d],
      [POCO_DEBUG_SUFFIX=])

ENABLE_DEBUG=
LOOLWSD_LOGLEVEL="warning"
LOOLWSD_LOG_TO_FILE="false"
LOOLWSD_LOGFILE="/var/log/loolwsd.log"
LOOLWSD_ANONYMIZE_FILENAMES=false
LOOLWSD_ANONYMIZE_USERNAMES=false
LOLEAFLET_LOGGING="false"
debug_msg="secure mode: product build"
anonym_msg=""
if test "$enable_debug" = "yes"; then
   AC_DEFINE([ENABLE_DEBUG],1,[Whether to compile in some extra debugging support code and disable some security pieces])
   ENABLE_DEBUG=true
   LOOLWSD_LOGLEVEL="trace"
   LOOLWSD_LOG_TO_FILE="true"
   LOOLWSD_LOGFILE="/tmp/loolwsd.log"
   LOOLWSD_ANONYMIZE_FILENAMES=false
   LOOLWSD_ANONYMIZE_USERNAMES=false
   LOLEAFLET_LOGGING="true"
   debug_msg="low security debugging mode"
else
    AC_DEFINE([ENABLE_DEBUG],0,[Whether to compile in some extra debugging support code and disable some security pieces])
fi
AC_SUBST(ENABLE_DEBUG)
AC_SUBST(LOOLWSD_LOGLEVEL)
AC_SUBST(LOOLWSD_LOG_TO_FILE)
AC_SUBST(LOLEAFLET_LOGGING)

if test -n "$with_logfile" ; then
   LOOLWSD_LOGFILE="$with_logfile"
fi
AC_SUBST(LOOLWSD_LOGFILE)

if test "$enable_anonymize_filenames" = "yes" ; then
   LOOLWSD_ANONYMIZE_FILENAMES=true
   anonym_msg="filenames anonymized; "
fi
AC_DEFINE_UNQUOTED([LOOLWSD_ANONYMIZE_FILENAMES],[$LOOLWSD_ANONYMIZE_FILENAMES],[Enable permanent filenames anonymization in logs])
AC_SUBST(LOOLWSD_ANONYMIZE_FILENAMES)

if test "$enable_anonymize_usernames" = "yes" ; then
   LOOLWSD_ANONYMIZE_USERNAMES=true
   anonym_msg="${anonym_msg}usernames anonymized; "
fi
AC_DEFINE_UNQUOTED([LOOLWSD_ANONYMIZE_USERNAMES],[$LOOLWSD_ANONYMIZE_USERNAMES],[Enable permanent usernames anonymization in logs])
AC_SUBST(LOOLWSD_ANONYMIZE_USERNAMES)

if test -z "$anonym_msg";  then
  anonym_msg="no anonymization of usernames or filenames"
fi

ENABLE_IOSAPP=
MOBILE_APP_NAME="Mobile"

if test "$enable_iosapp" = "yes"; then
   ENABLE_IOSAPP=true
   if test -n "$with_iosapp_name"; then
      MOBILE_APP_NAME="$with_iosapp_name"
   fi

   # When configuring for building the app itself, on macOS, we need
   # these. But not when just configuring for building the JS on
   # Linux, for copying over to the Mac.
   if test `uname -s` = "Darwin"; then
      AC_MSG_CHECKING([for LibreOffice build tree to build against])
      if test -z "$with_lo_builddir"; then
         AC_MSG_ERROR([You MUST use the --with-lo-builddir option when configuring the iOS app build tree.])
      fi

      LOBUILDDIR="$with_lo_builddir"
      # Sanity check, just a random object file in the LibreOffice build tree
      if test -f "$LOBUILDDIR/workdir/CxxObject/vcl/ios/iosinst.o"; then
          AC_MSG_RESULT([$LOBUILDDIR])
      else
          AC_MSG_ERROR([This is not a LibreOffice core build directory: $LOBUILDDIR])
      fi

      AC_MSG_CHECKING([for Poco include directory to build against])
      if test -z "$with_poco_includes"; then
         AC_MSG_ERROR([You MUST use the --with-poco-includes option when configuring the iOS app build tree.])
      fi

      POCOINCLUDE="$with_poco_includes"
      # Sanity check
      if test -f "$POCOINCLUDE/Poco/Poco.h"; then
          AC_MSG_RESULT([$POCOINCLUDE])
      else
          AC_MSG_ERROR([This is not a Poco include directory: $POCOINCLUDE])
      fi

      AC_MSG_CHECKING([for Poco lib directory to build against])
      if test -z "$with_poco_libs"; then
         AC_MSG_ERROR([You MUST use the --with-poco-libs option when configuring the iOS app build tree.])
      fi

      POCOLIB="$with_poco_libs"
      # Sanity check
      if test -f "$POCOLIB/libPocoFoundation.a"; then
          AC_MSG_RESULT([$POCOLIB])
      else
          AC_MSG_ERROR([This is not a Poco lib directory: $POCOLIB])
      fi
   fi
fi
AC_SUBST(ENABLE_IOSAPP)
AM_CONDITIONAL([ENABLE_IOSAPP], [test "$ENABLE_IOSAPP" = "true"])
AC_SUBST(MOBILE_APP_NAME)

ENABLE_GTKAPP=
if test "$enable_gtkapp" = "yes"; then
   ENABLE_GTKAPP=true
fi
AC_SUBST(ENABLE_GTKAPP)
AM_CONDITIONAL([ENABLE_GTKAPP], [test "$ENABLE_GTKAPP" = "true"])

MAX_CONNECTIONS=20
AS_IF([test -n "$with_max_connections" && test "$with_max_connections" -gt "0"],
      [MAX_CONNECTIONS="$with_max_connections"])
AS_IF([test "$MAX_CONNECTIONS" -lt "3"],
      [MAX_CONNECTIONS="3"])
AC_DEFINE_UNQUOTED([MAX_CONNECTIONS],[$MAX_CONNECTIONS],[Limit the maximum number of open connections])
AC_SUBST(MAX_CONNECTIONS)

MAX_DOCUMENTS=10
AS_IF([test -n "$with_max_documents" && test "$with_max_documents" -gt "0"],
      [MAX_DOCUMENTS="$with_max_documents"])
AS_IF([test "$MAX_DOCUMENTS" -gt "$MAX_CONNECTIONS"],
      [MAX_DOCUMENTS="$MAX_CONNECTIONS"])
AS_IF([test "$MAX_DOCUMENTS" -lt "2"],
      [MAX_DOCUMENTS="2"])
AC_DEFINE_UNQUOTED([MAX_DOCUMENTS],[$MAX_DOCUMENTS],[Limit the maximum number of open documents])
AC_SUBST(MAX_DOCUMENTS)

VEREIGN_URL=
if test "$enable_vereign" = "yes"; then
    VEREIGN_URL="https://app.vereign.com"
fi
AC_DEFINE_UNQUOTED([VEREIGN_URL],["$VEREIGN_URL"],[Default value of per_documents.document_signing_url])
AC_SUBST(VEREIGN_URL)

# Test for build environment

AS_IF([test "$ENABLE_GTKAPP" != true],
[CXXFLAGS="$CXXFLAGS -std=c++11"
CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wshadow"])

CFLAGS="$CFLAGS -Wall -Wextra"

AC_MSG_CHECKING([whether to turn warnings to errors])
if test -z "$enable_werror" -o "$enable_werror" = "yes"; then
    AC_MSG_RESULT([yes])
    CXXFLAGS="$CXXFLAGS -Werror"
    CFLAGS="$CFLAGS -Werror"
else
    AC_MSG_RESULT([no])
fi

# check for C++11 support
HAVE_CXX11=
AC_MSG_CHECKING([whether $CXX supports C++14 or C++11])
for flag in -std=gnu++14 -std=gnu++1y -std=c++14 -std=c++1y -std=gnu++11 -std=gnu++0x -std=c++11 -std=c++0x ; do
    save_CXXFLAGS=$CXXFLAGS
    CXXFLAGS="$CXXFLAGS $flag -Werror"
    AC_LANG_PUSH([C++])
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
        #include <algorithm>
        #include <functional>
        #include <vector>
        void f(std::vector<int> & v, std::function<bool(int, int)> fn) {
            std::sort(v.begin(), v.end(), fn);
        }
        ]])],[CXXFLAGS_CXX11=$flag])
    AC_LANG_POP([C++])
    CXXFLAGS=$save_CXXFLAGS
    if test -n "$CXXFLAGS_CXX11"; then
        HAVE_CXX11=TRUE
        break
    fi
done
if test "$HAVE_CXX11" = TRUE; then
    AC_MSG_RESULT([yes ($CXXFLAGS_CXX11)])
else
    AC_MSG_ERROR(no)
fi

with_lokit_path=`readlink -f $with_lokit_path`
AS_IF([test -n "$with_lokit_path"],
      [CPPFLAGS="$CPPFLAGS -I${with_lokit_path}"])
lokit_msg="$with_lokit_path"

LO_PATH="/usr/lib64/libreoffice"
JAIL_PATH=not-set
SYSTEMPLATE_PATH=not-set
have_lo_path=false
AC_MSG_CHECKING([whether to run tests against a LibreOffice])
if test -n "$with_lo_path"; then
   # strip trailing '/' from LO_PATH, 'ln -s' with such path will otherwise fail
   LO_PATH="${with_lo_path%/}"
   version_file="$with_lo_path/program/versionrc"
   if test -f $version_file; then
     JAILS_PATH="\${abs_top_builddir}/jails"
     TILECACHE_PATH="\${abs_top_builddir}/cache"
     SYSTEMPLATE_PATH="\${abs_top_builddir}/systemplate"
     have_lo_path=true
     lo_msg="test against $LO_PATH"
     AC_MSG_RESULT([yes])
   else
     lo_msg="no integration tests"
     AC_MSG_RESULT([no])
   fi
else
   lo_msg="no integration tests"
   AC_MSG_RESULT([no])
fi
AC_SUBST(LO_PATH)
AC_DEFINE_UNQUOTED([LO_PATH],["$LO_PATH"],[Path to LibreOffice installation])
AC_SUBST(JAILS_PATH)
AC_SUBST(TILECACHE_PATH)
AC_SUBST(SYSTEMPLATE_PATH)
AM_CONDITIONAL(HAVE_LO_PATH,[test "$have_lo_path" = "true"])

ENABLE_ANDROIDAPP=
if test "$enable_androidapp" = "yes"; then
   ENABLE_ANDROIDAPP=true
fi
AC_SUBST(ENABLE_ANDROIDAPP)
AM_CONDITIONAL([ENABLE_ANDROIDAPP], [test "$ENABLE_ANDROIDAPP" = "true"])

AS_IF([test -n "$with_poco_includes"],
      [CPPFLAGS="$CPPFLAGS -isystem ${with_poco_includes}"])

AS_IF([test -n "$with_poco_libs"],
      [LDFLAGS="$LDFLAGS -L${with_poco_libs}"])

AS_IF([test -n "$with_libpng_includes"],
      [CPPFLAGS="$CPPFLAGS -isystem ${with_libpng_includes}"])

AS_IF([test -n "$with_libpng_libs"],
      [LDFLAGS="$LDFLAGS -L${with_libpng_libs}"])

AS_IF([test -n "$with_cppunit_includes"],
      [CPPFLAGS="$CPPFLAGS -isystem ${with_cppunit_includes}"])

AS_IF([test -n "$with_cppunit_libs"],
      [LDFLAGS="$LDFLAGS -L${with_cppunit_libs}"])

AS_IF([test `uname -s` = Linux],
      [AS_IF([test -n "$with_poco_libs"],
             [LDFLAGS="$LDFLAGS -Wl,-rpath,${with_poco_libs}"])])

AS_IF([test `uname -s` = Linux],
      [AS_IF([test -n "$with_cppunit_libs"],
             [LDFLAGS="$LDFLAGS -Wl,-rpath,${with_cppunit_libs}"])])

AS_IF([test `uname -s` != Darwin],
      [AC_SEARCH_LIBS([dlopen],
                      [dl dld],
                      [],
                      [AC_MSG_ERROR([dlopen not found])])])

AS_IF([test "$ENABLE_IOSAPP" != "true" -a "$ENABLE_ANDROIDAPP" != "true"],
      [AC_SEARCH_LIBS([png_create_write_struct],
                      [png],
                      [],
                      [AC_MSG_ERROR([libpng not available?])])
       PKG_CHECK_MODULES([ZLIB], [zlib])

       PKG_CHECK_MODULES([CPPUNIT], [cppunit])
       ])

AS_IF([test `uname -s` = Linux -a "$ENABLE_ANDROIDAPP" != "true"],
      [AC_SEARCH_LIBS([cap_get_proc],
                      [cap],
                      [],
                      [AC_MSG_ERROR([libcap not available?])])])

AS_IF([test "$ENABLE_GTKAPP" = true],
      [PKG_CHECK_MODULES([WEBKIT],[webkit2gtk-4.0])])

AM_CONDITIONAL([ENABLE_DEBUG], [test "$ENABLE_DEBUG" = "true"])

mobile_app=
AC_MSG_CHECKING([Is this a mobile app])
if test "$enable_gtkapp" = "yes" -o "$enable_iosapp" = "yes" -o "$enable_androidapp"; then
     AC_MSG_RESULT([Yes])
     mobile_app=true;
else
     AC_MSG_RESULT([No])
fi

ENABLE_SSL=true
if test "$enable_ssl" != "no" -a "$mobile_app" != "true"; then
   ssl_msg="ssl enabled"
   ENABLE_SSL=true
   AC_DEFINE([ENABLE_SSL],1,[Whether to enable SSL])
else
   ssl_msg="insecure: ssl disabled"
   ENABLE_SSL=false
   AC_DEFINE([ENABLE_SSL],0,[Whether to enable SSL])
fi
AM_CONDITIONAL([ENABLE_SSL], [$ENABLE_SSL])
AC_SUBST(ENABLE_SSL)

AS_IF([test "$ENABLE_ANDROIDAPP" != "true"],
      [AC_CHECK_HEADERS([security/pam_appl.h],
                        [],
                        [AC_MSG_ERROR([header security/pam_appl.h not found, install PAM development package])])
       AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([No. Install PAM development package])])])

AC_MSG_CHECKING([whether to build with support public key])
if test "x$with_support_public_key" != "x"; then
    AC_DEFINE([ENABLE_SUPPORT_KEY],1,[Whether to enable support key])

    # generate the public key include
    echo -e "#ifndef INCLUDED_SUPPORT_PUBLIC_KEY_HPP\n#define INCLUDED_SUPPORT_PUBLIC_KEY_HPP\n#include <string>\nconst static std::string SUPPORT_PUBLIC_KEY(" > "${srcdir}/common/support-public-key.hpp"
    sed 's/\(.*\)/"\1\\n"/' "$with_support_public_key" >> "${srcdir}/common/support-public-key.hpp"
    echo -e ");\n#endif" >> "${srcdir}/common/support-public-key.hpp"
    AC_MSG_RESULT([yes])
else
    AC_DEFINE([ENABLE_SUPPORT_KEY],0,[Whether to enable support key])
    rm -f "${srcdir}/common/support-public-key.hpp"
    AC_MSG_RESULT([no])
fi
AC_SUBST(ENABLE_SUPPORT_KEY)

LIBS="$LIBS -lPocoNet${POCO_DEBUG_SUFFIX} -lPocoUtil${POCO_DEBUG_SUFFIX} -lPocoJSON${POCO_DEBUG_SUFFIX} -lPocoFoundation${POCO_DEBUG_SUFFIX} -lPocoXML${POCO_DEBUG_SUFFIX} -lPocoNetSSL${POCO_DEBUG_SUFFIX} -lPocoCrypto${POCO_DEBUG_SUFFIX}"

AS_IF([test "$ENABLE_IOSAPP" != "true"],
      [AC_CHECK_HEADERS([LibreOfficeKit/LibreOfficeKit.h],
                        [],
                        [AC_MSG_ERROR([header LibreOfficeKit/LibreOfficeKit.h not found, perhaps you want to use --with-lokit-path])])
       AC_CHECK_HEADERS([Poco/Net/WebSocket.h],
                        [],
                        [AC_MSG_ERROR([header Poco/Net/WebSocket.h not found, perhaps you want to use --with-poco-includes])])
       DISABLE_SECCOMP=
       if test "$enable_seccomp" != "no"; then
           AC_CHECK_HEADERS([linux/seccomp.h],
                            [],
                            [AC_MSG_ERROR([critical security header linux/seccomp.h not found. If kernel on target system does not support SECCOMP, you can use --disable-seccomp, but mind the security consequences.])])
           AC_DEFINE([DISABLE_SECCOMP],0,[Whether to disable SECCOMP])
       else
           AC_DEFINE([DISABLE_SECCOMP],1,[Whether to disable SECCOMP])
       fi

       AC_MSG_CHECKING([Whether OpenSSL has PKCS5_PBKDF2_HMAC()])
       AC_COMPILE_IFELSE([AC_LANG_SOURCE([
       #include <openssl/opensslv.h>
       #if OPENSSL_VERSION_NUMBER < 0x10001000L
       #error PKCS5_PBKDF2_HMAC() is in OpenSSL 1.0.1 or newer
       #endif
       ])],
                         [AC_MSG_RESULT([yes])
                          AC_DEFINE([HAVE_PKCS5_PBKDF2_HMAC],1,[whether OpenSSL has PKCS5_PBKDF2_HMAC()])],
                         [AC_MSG_RESULT([no])
                          AC_MSG_WARN([OpenSSL is too old. Secure password storage for Admin Console is not supported.])
                          AC_DEFINE([HAVE_PKCS5_PBKDF2_HMAC],0,[Whether OpenSSL has PKCS5_PBKDF2_HMAC()])])

       AC_MSG_CHECKING([POCO version])
       AC_COMPILE_IFELSE([AC_LANG_SOURCE([
       #include <Poco/Version.h>
       #if POCO_VERSION < 0x01070100
       #error Require Poco 1.7.1 or newer
       #endif
       ])],
                         [AC_MSG_RESULT([OK])],
                         [AC_MSG_ERROR([The POCO version is too old])])

       # If poco is built with --unbundled, it uses the system pcre library
       AC_MSG_CHECKING([If we need to link with -lpcre])
       AC_LINK_IFELSE([AC_LANG_SOURCE([
       #include <Poco/RegularExpression.h>
       int main(int argc, char **argv)
       {
           Poco::RegularExpression e("abc.[def]");
           Poco::RegularExpression::Match m;
           return e.match(argv[[1]], m);
       }
       ])],
                      [AC_MSG_RESULT([No])],
                      [AC_MSG_RESULT([Yes])
                       LIBS="$LIBS -lpcre"])

       ])

AS_IF([test `uname -s` = "Linux"],
      # We need npm and node only on Linux, both in the normal Online case,
      # and when only building JS for the iOS app. When building the iOS app itself on macOS,
      # don't do this.
      [AC_PATH_PROG(NPM, npm, no)
       if test "$NPM" = "no"; then
           AC_MSG_ERROR([npm required to build loleaflet, but not installed])
       else
           NPM_VER=`npm -v | awk -F. '{ print (($1 * 100) + $2) * 100 + $3;}'`
           if test "$NPM_VER" -ge 30900 -a "$NPM_VER" -lt 31004; then
               AC_MSG_ERROR([This npm version is buggy, either upgrade to >= 3.10.4 or downgrade to < 3.9.0])
           fi
       fi

       AC_PATH_PROG(NODE, node, no)
       if test "$NODE" = "no"; then
           AC_MSG_ERROR([node required to build loleaflet, but not installed])
       else
           NODE_VER=`node --version | sed 's/^v//' | awk -F. '{ print (($1 * 100) + $2) * 100 + $3;}'`
           if test "$NODE_VER" -lt 60000; then
               AC_MSG_ERROR([This node version is old, upgrade to >= 6.0.0])
           fi
       fi
       ])

AS_IF([test "$ENABLE_IOSAPP" != "true"],
      [test "$prefix" = NONE && prefix=$ac_default_prefix
       LOOLWSD_CACHEDIR=${localstatedir}/cache/${PACKAGE}
       while :; do
           oldvalue=$LOOLWSD_CACHEDIR
           LOOLWSD_CACHEDIR=`eval echo $LOOLWSD_CACHEDIR`
           test $LOOLWSD_CACHEDIR = $oldvalue && break
       done
       ])

# need this after the other stuff that uses the compiler because we don't want to run configure-tests with the plugins enabled
AS_IF([test -n "$with_compiler_plugins"],
      [CPPFLAGS="$CPPFLAGS -Xclang -load -Xclang ${with_compiler_plugins}/compilerplugins/obj/plugin.so -Xclang -add-plugin -Xclang loplugin -Xclang -plugin-arg-loplugin -Xclang --lool-base-path=\${abs_top_srcdir}"])

AC_DEFINE_UNQUOTED([LOOLWSD_CACHEDIR],["$LOOLWSD_CACHEDIR"],[Cache folder])
AC_SUBST(LOOLWSD_CACHEDIR)

LOOLWSD_CONFIGDIR=${sysconfdir}/${PACKAGE}
AC_SUBST(LOOLWSD_CONFIGDIR)

LOOLWSD_DATADIR=${datadir}/${PACKAGE}
AC_SUBST(LOOLWSD_DATADIR)

AS_IF([test "$enable_setcap" != "no"],
      [AC_DEFINE([ENABLE_SETCAP],1,[Whether to enable setting of capabilities])],
      [AC_DEFINE([ENABLE_SETCAP],0,[Whether to enable setting of capabilities])])

AM_CONDITIONAL([ENABLE_SETCAP], [test "$enable_setcap" != "no"])

ENABLE_SETCAP=
if test "$enable_setcap" != "no"; then
    ENABLE_SETCAP=true
    setcap_msg="setcap enabled"
else
    setcap_msg="setcap disabled"
fi

AC_SUBST(ENABLE_SETCAP)

AC_CONFIG_LINKS([discovery.xml:discovery.xml])
AC_CONFIG_LINKS([loolkitconfig.xcu:loolkitconfig.xcu])
AC_CONFIG_LINKS([loleaflet/package.json:loleaflet/package.json])
AC_LINK_FILES([loleaflet/node_shrinkwrap], [loleaflet/node_shrinkwrap])

AS_IF([test "$ENABLE_IOSAPP" = "true"],
      [
       if test `uname -s` = "Darwin"; then
          IOSAPP_FONTS=''
          mkdir -p ios/Mobile/Fonts
          if test "$with_iosapp_fonts" != no -a -d "$with_iosapp_fonts"; then
              AC_MSG_NOTICE([copying fonts to be bundled])
              IOSAPP_FONTS=`find "$with_iosapp_fonts" -type f |
                            while read fname; do
                               cp "$fname" ios/Mobile/Fonts
                               echo '<string>Fonts/'$(basename $fname)'</string>'
                            done`
          fi
       fi
      ])
AC_SUBST(IOSAPP_FONTS)

AC_CONFIG_FILES([Makefile
                 gtk/Makefile
                 ios/config.h
                 ios/Mobile/Info.plist
                 test/Makefile
                 loleaflet/Makefile
                 loleaflet/npm-shrinkwrap.json
                 loolwsd.spec
                 loolwsd.xml
                 debian/loolwsd.postinst])
AC_CONFIG_FILES([test/run_unit.sh],[chmod +x test/run_unit.sh])

AC_OUTPUT

AC_LANG_POP

AS_IF([test "$ENABLE_IOSAPP" = "true"],
      [
       if test `uname -s` = "Darwin"; then
          # Sadly I can't figure out any better way to avoid having to
          # edit the Xcode project file manually. Create symlinks to the
          # LibreOffice core source and build trees, and to the Poco
          # installation.

          AC_MSG_NOTICE([creating symbolic links for the Xcode project to use])

          if test -L lobuilddir-symlink; then
             rm -f lobuilddir-symlink
          elif test -f lobuilddir-symlink; then
             AC_MSG_ERROR([lobuilddir-symlink exists and is not a symbolic link])
          fi
          ln -s "$LOBUILDDIR" lobuilddir-symlink

          if test -L pocoinclude-symlink; then
             rm -f pocoinclude-symlink
          elif test -f pocoinclude-symlink; then
             AC_MSG_ERROR([pocoinclude-symlink exists and is not a symbolic link])
          fi
          ln -s "$POCOINCLUDE" pocoinclude-symlink

          if test -L pocolib-symlink; then
             rm -f pocolib-symlink
          elif test -f pocolib-symlink; then
             AC_MSG_ERROR([pocolib-symlink exists and is not a symbolic link])
          fi
          ln -s "$POCOLIB" pocolib-symlink

          eval `grep 'export ICU_MAJOR=' "$LOBUILDDIR/config_host.mk"`
          if test -L ICU.dat; then
             rm -f ICU.dat
          elif test -f ICU.dat; then
             AC_MSG_ERROR([ICU.dat exists and is not a symbolic link])
          fi
          ln -s "$LOBUILDDIR/workdir/CustomTarget/ios/resources/icudt${ICU_MAJOR}l.dat" ICU.dat

          # Sadly Xcode doesn't like it if AppIcon.appiconset is a
          # symlink, so make it a directory of symlinks to the actual png
          # and json files.
          rm -rf ios/Mobile/Assets.xcassets/AppIcon.appiconset
          mkdir ios/Mobile/Assets.xcassets/AppIcon.appiconset
          if test -n "$with_iosapp_appicon"; then
             ln -s "$with_iosapp_appicon"/* ios/Mobile/Assets.xcassets/AppIcon.appiconset
          else
             ln -s ios/Mobile/Assets.xcassets/Empty.appiconset/* ios/Mobile/Assets.xcassets/AppIcon.appiconset
          fi
       fi
      ],
      [
       echo "
Configuration:
    LOKit path              ${lokit_msg}
    LO path                 $LO_PATH
    LO integration tests    ${lo_msg}
    SSL support             $ssl_msg
    Debug & low security    $debug_msg
    Anonymization           $anonym_msg
    Set capabilities        $setcap_msg

    \$ make # to compile"
if test -n "$with_lo_path"; then
echo "    \$ make run # to start loolwsd
"
fi
      ])

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