AC_PREREQ(2.57)
AC_INIT(Swift,[],swift@swift.im)
AC_CONFIG_SRCDIR([Swiften/Base/String.h])
AC_CONFIG_AUX_DIR([autoconf])
AC_CONFIG_HEADERS([Swiften/config.h])
AC_CANONICAL_BUILD
AC_CANONICAL_HOST

################################################################################
# Config.h templates
################################################################################

AH_TEMPLATE(HAVE_OPENSSL, [OpenSSL library available])
AH_TEMPLATE(HAVE_LIBXML, [LibXML library available])
AH_TEMPLATE(HAVE_EXPAT, [Expat library available])
AH_TEMPLATE(HAVE_BONJOUR, [Apple Bonjour SDK available])
AH_TEMPLATE(HAVE_AVAHI, [Avahi library available])

################################################################################
# Default flags
################################################################################

# Following flags generate too much warnings (in boost etc.). Make
# a configure option for these, and add a filter script
# -Weff-c++ -Wshadow -Winline -Wunreachable-code 
# -ansi: Gets us into problems on MingW
CONFIG_CXXFLAGS="$CPPFLAGS -DHAVE_SWIFTEN_CONFIG_H $CXXFLAGS"
CONFIG_CFLAGS="$CPPFLAGS -DHAVE_SWIFTEN_CONFIG_H $CFLAGS"
CONFIG_LDFLAGS="$LDFLAGS"
CONFIG_LIBS=""

case $host in
	*-*-cygwin*)
		CONFIG_CFLAGS="$CONFIG_CFLAGS -mno-cygwin"
		CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS -mno-cygwin"
		CONFIG_LIBS="$CONFIG_LIBS -ldnsapi -lws2_32 -lwsock32"
		CONFIG_WIN32=1
		;;
	*-mingw32*)
		CONFIG_LIBS="$CONFIG_LIBS -ldnsapi -lws2_32 -lwsock32"
		CONFIG_WIN32=1
		;;
	*-*-darwin*)
    CONFIG_LIBS="$CONFIG_LIBS -lstdc++ -framework AppKit"
		CONFIG_MACOSX=1
		;;
	*)
    CONFIG_LIBS="$CONFIG_LIBS -lstdc++"
esac

case $host in
	x86_64-*)
		ARCH="amd64"
		;;
	i686-*)
		ARCH="i686"
		;;
	*)
		ARCH="i386"
esac

AC_CHECK_FILE([Swift/Makefile.inc], [BUILD_SWIFT="yes"], [BUILD_SWIFT="no"])
AC_CHECK_FILE([Limber/Makefile.inc], [BUILD_LIMBER="yes"], [BUILD_LIMBER="no"])
AC_CHECK_FILE([Slimber/Makefile.inc], [BUILD_SLIMBER="yes"], [BUILD_SLIMBER="no"])

################################################################################
# Configure options
################################################################################

AC_ARG_ENABLE(debug,
	AC_HELP_STRING(--enable-debug, [Build with debugging information (default: no)]),
		[if test "$enableval" = yes; then
			CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS -g"
			CONFIG_CFLAGS="$CONFIG_CFLAGS -g"
		 fi],
		[])

AC_ARG_ENABLE(optimize,
	AC_HELP_STRING(--enable-optimize, [Optimize build (default: no)]),
		[if test "$enableval" = yes; then
			CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS -O2"
			CONFIG_CFLAGS="$CONFIG_CFLAGS -O2"
		 fi],
		[])

AC_ARG_ENABLE(coverage,
	AC_HELP_STRING(--enable-coverage, [Enable coverage (default: no)]),
		[if test "$enableval" = yes; then
			CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS -fprofile-arcs -ftest-coverage"
			CONFIG_LDFLAGS="$CONFIG_LDFLAGS -fprofile-arcs -ftest-coverage"
		 fi],
		[])

AC_ARG_ENABLE(universal,
	AC_HELP_STRING(--enable-universal, [Enable universal builds (default: no)]),
		[if test "$enableval" = yes; then
			CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
			CONFIG_CFLAGS="$CONFIG_CFLAGS -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
			CONFIG_LDFLAGS="$CONFIG_LDFLAGS -mmacosx-version-min=10.4 -Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
			CXXFLAGS="$CXXFLAGS -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
			CFLAGS="$CFLAGS -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
			LDFLAGS="$LDFLAGS -mmacosx-version-min=10.4 -Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
		 fi],
		[])

AC_ARG_ENABLE(gcc-warnings,
	AC_HELP_STRING(--disable-gcc-warnings, [Disable GCC compiler warnings (default: no)]),
	[enable_gcc_warnings="$enableval"],
	[enable_gcc_warnings="yes"])

if test "$enable_gcc_warnings" != "no"; then
	#CONFIG_CFLAGS="$CONFIG_CFLAGS -W -Wall -Wredundant-decls -pedantic -Wno-long-long -Wundef -Wfloat-equal"
	CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS -W -Wall -Wredundant-decls -pedantic -Wno-long-long -Woverloaded-virtual -Wundef -Wfloat-equal -Wold-style-cast"
	CONFIG_LDFLAGS="$CONFIG_LDFLAGS -W -Wall"
fi

################################################################################
# Checks for programs and sets default compiler options.
################################################################################

# On windows, use some smart defaults for the compiler
case $host in
	*-*-cygwin* | *-mingw32*)
		if test -z "$CC"; then
			CC="autoconf/cccl"
		fi
		if test -z "$CXX"; then
			CXX="autoconf/cccl"
		fi
		if test -z "$MM"; then
			MM="gcc"
		fi
		;;
	*)
esac

AC_PROG_CC
AC_PROG_CXX
AC_GNU_SOURCE
AC_PROG_MAKE_SET
AC_PROG_INSTALL
#AC_SYS_LARGEFILE
CONFIG_CC="$CC"
CONFIG_CXX="$CXX"
if test -z "$MM"; then
	MM="$CC"
fi

# Qt
if test "$BUILD_SWIFT" == "yes"; then
	NEED_QT=yes
fi
if test "$NEED_QT" == "yes"; then
  AX_QT()
  if test "$HAVE_QT" != yes; then
    AC_MSG_ERROR([Could not find Qt])
  fi
fi

# Expat
AX_LIB_EXPAT()
if test "$HAVE_EXPAT" = yes; then
	CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS $EXPAT_CFLAGS"
	CONFIG_LDFLAGS="$CONFIG_LDFLAGS $EXPAT_LDFLAGS"
	AC_DEFINE(HAVE_EXPAT)
fi

# LibXML
AX_LIBXML()
CONFIG_HAVE_LIBXML="$HAVE_LIBXML"
if test "$HAVE_LIBXML" = yes; then
	CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS $LIBXML_CPPFLAGS"
	CONFIG_LDFLAGS="$CONFIG_LDFLAGS $LIBXML_LDFLAGS"
	CONFIG_LIBS="$LIBXML_LIBS $CONFIG_LIBS"
	AC_DEFINE(HAVE_LIBXML)
fi

# Test whether we have *a* parser, and use bundled Expat if necessary
if test "$HAVE_EXPAT" != yes -a "$HAVE_LIBXML" != yes; then
  AC_MSG_NOTICE([No installed XML parser found. Using bundled Expat])
  HAVE_EXPAT=yes
  USE_BUNDLED_EXPAT=yes
fi

# OpenSSL
AX_OPENSSL()
CONFIG_HAVE_OPENSSL="$HAVE_OPENSSL"
if test "$HAVE_OPENSSL" = yes; then
	CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS $OPENSSL_CPPFLAGS"
	CONFIG_CFLAGS="$CONFIG_CFLAGS $OPENSSL_CPPFLAGS"
	CONFIG_LIBS="$CONFIG_LIBS $OPENSSL_LIBS"
	AC_DEFINE(HAVE_OPENSSL)
fi

# Resolv
AC_CHECK_LIB(resolv, inet_aton)

# DNSSD Service
case $host in
	*-*-cygwin*)
    AC_DEFINE(HAVE_BONJOUR)
		;;
	*-mingw32*)
    AC_DEFINE(HAVE_BONJOUR)
		;;
	*-*-darwin*)
		;;
	*)
    AX_AVAHI()
    if test "$HAVE_AVAHI" = yes; then
      CONFIG_CXXFLAGS="$CONFIG_CXXFLAGS $AVAHI_CPPFLAGS"
      CONFIG_LDFLAGS="$CONFIG_LDFLAGS $AVAHI_LDFLAGS"
      CONFIG_LIBS="$AVAHI_LIBS $CONFIG_LIBS"
      AC_DEFINE(HAVE_AVAHI)
    fi
esac


################################################################################
# Build configuration summary
################################################################################

echo
echo "    Build Configuration"
echo "    -------------------"

TEXT_XML_PARSERS=
if test "$HAVE_LIBXML" == "yes"; then TEXT_XML_PARSERS="LibXML"; fi
if test "$USE_BUNDLED_EXPAT" == "yes"; then TEXT_XML_PARSERS="(Bundled)"; fi
if test "$HAVE_EXPAT" == "yes"; then TEXT_XML_PARSERS="Expat $TEXT_XML_PARSERS"; fi
echo "    XML Parser(s): $TEXT_XML_PARSERS"

if test "$HAVE_OPENSSL" = yes; then TEXT_TLS_SUPPORT="OpenSSL"; fi
if test "$HAVE_OPENSSL" != yes; then TEXT_TLS_SUPPORT="Disabled"; fi
echo "    TLS support: $TEXT_TLS_SUPPORT"
echo

################################################################################
# Generate files
################################################################################

AC_SUBST(SET_MAKE)
AC_SUBST(HAVE_EXPAT)
AC_SUBST(HAVE_AVAHI)
AC_SUBST(HAVE_BONJOUR)
AC_SUBST(CONFIG_CXX)
AC_SUBST(CONFIG_CXXFLAGS)
AC_SUBST(CONFIG_CC)
AC_SUBST(MM)
AC_SUBST(CONFIG_CFLAGS)
AC_SUBST(CONFIG_LDFLAGS)
AC_SUBST(CONFIG_LIBS)
AC_SUBST(LIBS)
AC_SUBST(CONFIG_WIN32)
AC_SUBST(CONFIG_MACOSX)
AC_SUBST(CONFIG_HAVE_OPENSSL)
AC_SUBST(USE_BUNDLED_EXPAT)
AC_SUBST(CONFIG_HAVE_LIBXML)
AC_SUBST(QMAKE)
AC_SUBST(BUILD_SWIFT)
AC_SUBST(BUILD_LIMBER)
AC_SUBST(BUILD_SLIMBER)
AC_SUBST(ARCH)

AC_CONFIG_FILES([Makefile.config])
if test "$BUILD_SWIFT" == "yes"; then
	AC_CONFIG_FILES([Swift/QtUI/config.pri])
fi
AC_OUTPUT