# This file is part of GNUnet.
# (C) 2001-2019 Christian Grothoff (and other contributing authors)
#
# GNUnet is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 2, or (at your
# option) any later version.
#
# GNUnet is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNUnet; see the file COPYING.  If not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
#
#
# Process this file with autoconf to produce a configure script.
#
AC_PREREQ(2.61)
AC_INIT([gnunet-secushare],[0.11.0],[bug-gnunet@gnu.org])
AM_INIT_AUTOMAKE
AC_CONFIG_HEADERS([gnunet_secushare_config.h])
AC_CONFIG_MACRO_DIR([m4])
AH_TOP([#define _GNU_SOURCE  1])

AC_ISC_POSIX
AC_PROG_AWK
AC_PROG_CC

AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_LIBTOOL_WIN32_DLL
AC_PROG_CC
AM_PROG_CC_STDC
AC_HEADER_STDC
AC_CANONICAL_HOST
AC_SUBST(MKDIR_P)

# dynamic libraries/plugins
AC_DISABLE_STATIC
AC_PROG_LIBTOOL

AC_SYS_LARGEFILE
AC_FUNC_FSEEKO

CFLAGS="-Wall $CFLAGS"
# use '-fno-strict-aliasing', but only if the compiler can take it
if gcc -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1;
then
 CFLAGS="-fno-strict-aliasing $CFLAGS"
fi


# Check system type
case "$host_os" in
*darwin* | *rhapsody* | *macosx*)
     AC_DEFINE_UNQUOTED(OSX,1,[This is an OS X system])
     CFLAGS="-no-cpp-precomp $CFLAGS"
     LDFLAGS="-flat_namespace -undefined suppress $LDFLAGS"
     ;;
linux*)
     AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux system])
     ;;
freebsd*)
     AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
     AC_DEFINE_UNQUOTED(FREEBSD,1,[This is a FreeBSD system])
     ;;
openbsd*)
     AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
     AC_DEFINE_UNQUOTED(OPENBSD,1,[This is an OpenBSD system])
     ;;
netbsd*)
     AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
     AC_DEFINE_UNQUOTED(NETBSD,1,[This is a NetBSD system])
     ;;
*solaris*)
     AC_DEFINE_UNQUOTED(SOLARIS,1,[This is a Solaris system])
     AC_DEFINE_UNQUOTED(_REENTRANT,1,[Need with solaris or errno doesnt work])
     build_target="solaris"
     ;;
*arm-linux*)
     AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux system])
     ;;
*cygwin*)
     AC_DEFINE_UNQUOTED(CYGWIN,1,[This is a Cygwin system])
     AC_DEFINE_UNQUOTED(WINDOWS,1,[This is a Windows system])
     AC_CHECK_LIB(intl, gettext)
     LDFLAGS="$LDFLAGS -no-undefined"
     build_target="cygwin"
     ;;
*mingw*)
     AC_DEFINE_UNQUOTED(MINGW,1,[This is a MinGW system])
     AC_DEFINE_UNQUOTED(WINDOWS,1,[This is a Windows system])
     AC_DEFINE_UNQUOTED(_WIN32,1,[This is a Windows system])
     AC_CHECK_LIB(intl, gettext)
     LDFLAGS="$LDFLAGS -no-undefined -Wl,--export-all-symbols -lws2_32"
     CFLAGS="-mms-bitfields $CFLAGS"
     build_target="mingw"
     ;;
*)
     AC_MSG_RESULT(Unrecognised OS $host_os)
     AC_DEFINE_UNQUOTED(OTHEROS,1,[Some strange OS])
;;
esac

AM_CONDITIONAL(MINGW,   test "$build_target" = "mingw")

# check for gettext
AM_GNU_GETTEXT_VERSION([0.18.1])
AM_GNU_GETTEXT([external])

AC_CHECK_HEADERS([errno.h stdio.h unistd.h locale.h sys/stat.h sys/types.h langinfo.h libintl.h unistd.h stddef.h argz.h sys/socket.h netinet/in.h stdarg.h])

# test for GNUnet core
gnunet=0
lookin=${prefix}
backup_LDFLAGS="$LDFLAGS"
backup_CPPFLAGS="$CPPFLAGS"
GNUNET_LDFLAGS=""
GNUNET_CPPFLAGS=""
AC_MSG_CHECKING(for GNUnet core)
AC_ARG_WITH(gnunet,
   [  --with-gnunet=PFX       Base of GNUnet installation],
   [AC_MSG_RESULT([$with_gnunet])
    case $with_gnunet in
      no)
        lookin=""
        ;;
      yes)
        lookin="${prefix}"
        ;;
      *)
        lookin="$with_gnunet"
        ;;
    esac
   ],
   [
     AC_MSG_RESULT([--with-gnunet not specified])
     PKG_CHECK_MODULES([GNUNET], [gnunetutil >= 0.9.0], gnunet=1)
   ]
)

if test "x$gnunet" == "x0" -a ! "x$lookin" == "x"
then
  AC_MSG_CHECKING(for GNUnet util library in $lookin)
  GNUNET_LDFLAGS="-L${lookin}/lib"
  GNUNET_CPPFLAGS="-I${lookin}/include"
  LDFLAGS="$GNUNET_LDFLAGS $backup_LDFLAGS"
  CPPFLAGS="$GNUNET_CPPFLAGS $backup_CPPFLAGS"
  AC_CHECK_HEADERS([gnunet/gnunet_util_lib.h],
    AC_CHECK_LIB([gnunetutil], [GNUNET_xfree_],
      [
        gnunet=1
        EXT_LIB_PATH="-L${lookin}/lib $EXT_LIB_PATH"
      ]
    ),,[#include <gnunet/platform.h>]
  )
fi

if test "x$gnunet" == "x0"
then
  AC_MSG_ERROR([gnunet-ext requires GNUnet])
fi


# gcov compilation
AC_MSG_CHECKING(whether to compile with support for code coverage analysis)
AC_ARG_ENABLE([coverage],
              AS_HELP_STRING([--enable-coverage],
                             [compile the library with code coverage support]),
              [use_gcov=${enableval}],
              [use_gcov=no])
AC_MSG_RESULT($use_gcov)
AM_CONDITIONAL([USE_COVERAGE], [test "x$use_gcov" = "xyes"])

# should 'make check' run tests?
AC_MSG_CHECKING(whether to run tests)
AC_ARG_ENABLE([testruns],
   [AS_HELP_STRING([--disable-testruns], [disable running tests on make check (default is YES)])],
   [enable_tests_run=${enableval}],
   [enable_tests_run=yes])
AC_MSG_RESULT($enable_test_run)
AM_CONDITIONAL([ENABLE_TEST_RUN], [test "x$enable_tests_run" = "xyes"])



# should gnunet-testing be compiled
AC_MSG_CHECKING(wether to compile gnunet-testing)
AC_ARG_ENABLE([testing],
   [AS_HELP_STRING([--disable-testing], [do not build gnunet-testing])],
   [enable_testing=${enableval}],
   [enable_testing=yes])
AC_MSG_RESULT($enable_testing)
AM_CONDITIONAL([HAVE_TESTING], [test "x$enable_testing" = "xyes"])

# should experimental code be compiled (code that may not yet compile)?
AC_MSG_CHECKING(whether to compile experimental code)
AC_ARG_ENABLE([experimental],
   [AS_HELP_STRING([--enable-experimental], [enable compiling experimental code])],
   [enable_experimental=${enableval}],
   [enable_experimental=no])
AC_MSG_RESULT($enable_experimental)
AM_CONDITIONAL([HAVE_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"])


# Linker hardening options
# Currently these options are ELF specific - you can't use this with MacOSX
AC_ARG_ENABLE(linker-hardening,
  AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
[if test x$enableval = xyes; then
   LDFLAGS="$LDFLAGS -z relro -z now"
fi])


SAVE_LDFLAGS=$LDFLAGS
SAVE_CPPFLAGS=$CPPFLAGS

# test for sqlite
sqlite=false
AC_MSG_CHECKING(for SQLite)
AC_ARG_WITH(sqlite,
  [  --with-sqlite=PFX       base of SQLite installation],
  [AC_MSG_RESULT("$with_sqlite")
   case $with_sqlite in
   no)
     ;;
   yes)
    AC_CHECK_HEADERS(sqlite3.h,
     sqlite=true)
     ;;
   *)
    LDFLAGS="-L$with_sqlite/lib $LDFLAGS"
    CPPFLAGS="-I$with_sqlite/include $CPPFLAGS"
    AC_CHECK_HEADERS(sqlite3.h,
     EXT_LIB_PATH="-L$with_sqlite/lib $EXT_LIB_PATH"
     SQLITE_LDFLAGS="-L$with_sqlite/lib"
     SQLITE_CPPFLAGS="-I$with_sqlite/include"
     sqlite=true)
    LDFLAGS=$SAVE_LDFLAGS
    CPPFLAGS=$SAVE_CPPFLAGS
    ;;
   esac
  ],
  [AC_MSG_RESULT([--with-sqlite not specified])
    AC_CHECK_HEADERS(sqlite3.h, sqlite=true)])
AM_CONDITIONAL(HAVE_SQLITE, test x$sqlite = xtrue)
AC_SUBST(SQLITE_CPPFLAGS)
AC_SUBST(SQLITE_LDFLAGS)

LDFLAGS=$SAVE_LDFLAGS
CPPFLAGS=$SAVE_CPPFLAGS

# test for postgres
postgres=false
# even running the check for postgres breaks emscripten ...
AS_IF([test "$taler_only" != yes],
      [AX_LIB_POSTGRESQL([9.5],
        [CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS"
         AC_CHECK_HEADERS([libpq-fe.h],
         postgres=true)
        ],
        [AC_MSG_RESULT([no postgres])])])
AM_CONDITIONAL(HAVE_POSTGRESQL, test x$postgres = xtrue)


LDFLAGS=$SAVE_LDFLAGS
CPPFLAGS=$SAVE_CPPFLAGS

# mysql & windows
AC_CHECK_TYPES([sigset_t, off_t], [], [], [#include <sys/types.h>])
AC_CHECK_TYPES([size_t], [], [], [#include <stdio.h>])

if test "$build_target" = "mingw"
then
  CYGWIN_MYSQL_MAGIC="#include <mysql/my_global.h>"
fi

# test for mysql
mysql=false
mysqlfail=false
SAVE_LDFLAGS=$LDFLAGS
SAVE_CPPFLAGS=$CPPFLAGS
AC_MSG_CHECKING(for mysql)
AC_ARG_WITH(mysql,
  [  --with-mysql=PFX        base of MySQL installation],
  [AC_MSG_RESULT([$with_mysql])
   case $with_mysql in
   no)
      ;;
   yes|"")
      AC_CHECK_HEADERS(mysql/mysql.h,
       AC_CHECK_LIB(mysqlclient, mysql_init,

       mysql=true), [], [$CYGWIN_MYSQL_MAGIC])
      ;;
   *)
      LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql $LDFLAGS $ZLIBS"
      CPPFLAGS="-I$with_mysql/include $CPPFLAGS"
      AC_CHECK_HEADERS(mysql/mysql.h,
       AC_CHECK_LIB(mysqlclient, mysql_init,
        MYSQL_LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql"
        MYSQL_CPPFLAGS="-I$with_mysql/include"

        mysql=true), [], [$CYGWIN_MYSQL_MAGIC])
      ;;
   esac
  ],
  [AC_MSG_RESULT([--with-mysql not specified])
   if test -d "/usr/lib64/mysql"; then
    MYSQL_LIBDIR="/usr/lib64/mysql"
   elif test -d "/usr/lib/mysql"; then
    MYSQL_LIBDIR="/usr/lib/mysql"
   else
    MYSQL_LIBDIR="/usr/lib"
   fi
   LDFLAGS="-L$MYSQL_LIBDIR $LDFLAGS $ZLIBS"
   AC_CHECK_LIB(mysqlclient, mysql_init,
    [AC_CHECK_HEADERS(mysql/mysql.h,
      MYSQL_LDFLAGS="-L$MYSQL_LIBDIR"
      mysql=true

     , [], [$CYGWIN_MYSQL_MAGIC])])
  ])

AC_SUBST(MYSQL_LDFLAGS)
AC_SUBST(MYSQL_CPPFLAGS)

# additional version check for mysql
AC_ARG_ENABLE(mysql-version-check, [  --disable-mysql-version-check  do not check MySQL version],, enable_mysql_version_check=yes)
if test "$mysql" = "true" -a "x$enable_mysql_version_check" = "xyes"
then
  AC_MSG_CHECKING(mysql version)
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
    [[$CYGWIN_MYSQL_MAGIC
      #include <mysql/mysql.h>]],
    [[
      #if (MYSQL_VERSION_ID < 40100)
      #error needs at least version >= 4.1
      #endif
      int main () { return 0; }
    ]])
    ],mysql=true,mysql=false)
  if test "$mysql" = "false"
  then
    mysqlfail=true
    AC_MSG_RESULT([fail, >= 4.1 required])
  else
    AC_MSG_RESULT(ok)
  fi
fi
AM_CONDITIONAL(HAVE_MYSQL, test x$mysql = xtrue)
AM_CONDITIONAL(HAVE_MYSQLE, false)
# restore LIBS
LIBS=$SAVE_LIBS
LDFLAGS=$SAVE_LDFLAGS
CPPFLAGS=$SAVE_CPPFLAGS

if test "$sqlite" = 0 -a "$mysql" = 0
then
 AC_MSG_ERROR([GNUnet requires SQLite or MySQL])
fi


extra_logging=GNUNET_NO
AC_ARG_ENABLE([logging],
   AS_HELP_STRING([--enable-logging@<:@=value@:>@],[Enable logging calls. Possible values: yes,no,verbose,veryverbose ('yes' is the default)]),
   [AS_IF([test "x$enableval" = "xyes"], [],
          [test "x$enableval" = "xno"], [AC_DEFINE([GNUNET_CULL_LOGGING],[],[Define to cull all logging calls])],
          [test "x$enableval" = "xverbose"], [extra_logging=GNUNET_YES]
          [test "x$enableval" = "xveryverbose"], [extra_logging=\(GNUNET_YES+1\)])
   ], [])
AC_DEFINE_UNQUOTED([GNUNET_EXTRA_LOGGING],[$extra_logging],[1 if extra logging is enabled, 2 for very verbose extra logging, 0 otherwise])


AC_SUBST(GNUNET_CPPFLAGS)
AC_SUBST(GNUNET_LDFLAGS)
LDFLAGS="$backup_LDFLAGS"
CPPFLAGS="$backup_CPPFLAGS"

AC_DEFINE_DIR([PACKAGE_DATA], [datarootdir], [The directory for installing read-only architecture-independent data])

# Set PACKAGE_SOURCE_DIR in gnunet_ext_config.h.
packagesrcdir=`cd $srcdir && pwd`
AC_DEFINE_UNQUOTED(PACKAGE_SOURCE_DIR, "${packagesrcdir}", [source dir])

AC_OUTPUT([ po/Makefile.in
Makefile
pkgconfig/Makefile
src/Makefile
src/include/Makefile
src/multicast/Makefile
src/multicast/multicast.conf
src/psycutil/Makefile
src/psyc/Makefile
src/psyc/psyc.conf
src/psycstore/Makefile
src/psycstore/psycstore.conf
src/social/Makefile
src/social/social.conf
pkgconfig/gnunetmulticast.pc
pkgconfig/gnunetpsyc.pc
pkgconfig/gnunetpsycstore.pc
pkgconfig/gnunetsocial.pc
])