dnl Process this file with autoconf to produce a configure script.

dnl Initialize with some random file to ensure the source is here.
AC_INIT(src/qvwm.cc)

QVWM_MAJOR_VERSION=1
QVWM_MINOR_VERSION=1
QVWM_MICRO_VERSION=12

QVWM_VERSION=$QVWM_MAJOR_VERSION.$QVWM_MINOR_VERSION.$QVWM_MICRO_VERSION

AM_INIT_AUTOMAKE(qvwm, $QVWM_VERSION)
AM_CONFIG_HEADER(config.h)
AM_MAINTAINER_MODE

dnl Evaluate options.
AC_ARG_ENABLE(debug,
	[  --enable-debug          include debugging code [no]],
	if test $enableval = yes ; then
		AC_DEFINE(DEBUG)
	fi)

AC_ARG_ENABLE(rmtcmd,
	[  --enable-rmtcmd         allow sending commands to qvwm [yes]],
	if test $enableval = yes ; then
		AC_DEFINE(ALLOW_RMTCMD)
	fi,
	AC_DEFINE(ALLOW_RMTCMD))

AC_ARG_WITH(man,
	[  --with-man=locale       set locale of installed manual (jp/fr/en) [guessed]],
	MAN_LOCALE=$withval,
	MAN_LOCALE="")

AC_ARG_WITH(imlib,
	[  --with-imlib            use Imlib library [guessed]],
	IMLIB=$withval,
	IMLIB=guess)

AC_ARG_ENABLE(xsmp,
	[  --enable-xsmp           enable X Session Management Protocol [guessed]],
	XSMP=$enableval,
	XSMP=guess)

AC_ARG_WITH(qvwmdir,
	[  --with-qvwmdir=DIR      qvwm resources are in DIR [PREFIX/share/qvwm]],
	QVWMDIR=$withval,
	QVWMDIR="")

AC_ARG_WITH(imgdir,
	[  --with-imgdir=DIR       qvwm image files are in DIR [QVWMDIR/images]],
	IMGDIR=$withval,
	IMGDIR="")

AC_ARG_WITH(snddir,
	[  --with-snddir=DIR       qvwm sound files are in DIR [QVWMDIR/sounds]],
	SNDDIR=$withval,
	SNDDIR="")

AC_ARG_WITH(alsa,
	[  --with-alsa             use ALSA for sound effects [guessed]],
	ALSA=$withval,
	ALSA=guess)

AC_ARG_WITH(esd,
	[  --with-esd              use esd (EsounD) for sound effects [guessed]],
	ESD=$withval,
	ESD=guess)

AC_ARG_ENABLE(ss,
	[  --enable-ss             enable screen saver functions [yes]],
	SS=$enableval,
	SS=yes)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_YACC
AM_PROG_LEX
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET

AC_PATH_PROG(PATH_RM, rm)

dnl Checks for libraries.
AC_PATH_XTRA
CFLAGS="$CFLAGS $X_CFLAGS "
CXXFLAGS="$CXXFLAGS $X_CFLAGS "

dnl Checks for library functions.
AC_CHECK_LIB(X11, XOpenDisplay,
	X_LIBS="-lX11 $X_LIBS",
	AC_MSG_ERROR("Need X11"),
	$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS)

AC_CHECK_LIB(Xext, XShapeCombineMask,
	X_LIBS="-lXext $X_LIBS"; AC_DEFINE(USE_SHAPE),
	AC_MSG_WARN("Shape extension not used"),
	$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS)

dnl -lSM -lICE is included in $X_PRE_LIBS
if test $XSMP = yes -o $XSMP = guess ; then
	AC_CHECK_LIB(SM, SmcOpenConnection,
		AC_DEFINE(USE_XSMP),
		if test $XSMP = yes ; then
			AC_MSG_ERROR("System does not support XSMP")
		else
			AC_MSG_WARN("XSMP not used")
		fi,
		$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS)
else
	AC_MSG_WARN("XSMP not used")
fi

if test $IMLIB = yes -o $IMLIB = guess ; then
	AM_PATH_IMLIB(,
		[CXXFLAGS="$CXXFLAGS $IMLIB_CFLAGS"
		 X_LIBS="$IMLIB_LIBS $X_LIBS"
		 AC_DEFINE(USE_IMLIB)],
		if test $IMLIB = yes ; then
			AC_MSG_ERROR("Imlib not installed")
		else
			IMLIB=no
			AC_MSG_WARN("Imlib not used")
		fi)
else
	AC_MSG_WARN("Imlib not used")
fi

if test $IMLIB = no ; then
	AC_CHECK_LIB(Xpm, XpmReadFileToPixmap,
		X_LIBS="-lXpm $X_LIBS",
		AC_MSG_ERROR("Need Xpm library"),
		$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS)
fi

dnl Checks screen saver functions.
if test $SS = yes ; then
	AC_DEFINE(USE_SS)
	AC_CHECK_LIB(Xss, XScreenSaverQueryExtension,
		X_LIBS="-lXss $X_LIBS"; AC_DEFINE(USE_SSEXT),
		AC_MSG_WARN("Screen saver extention not used"),
		$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS)
fi

LIBS="$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS $LIBS"

dnl Check first for --with-alsa and --with-esd specified explicitly
if test $ALSA = yes ; then
	AC_CHECK_LIB(asound, snd_cards,
		[LIBS="$LIBS -lasound"
		 AC_DEFINE(USE_ALSA)],
		AC_MSG_ERROR("System does not support ALSA"))
fi

if test $ESD = yes ; then
	AM_PATH_ESD(0.2.6,
		[CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
		 LIBS="$LIBS $ESD_LIBS"
		 AC_DEFINE(USE_ESD)],
		AC_MSG_ERROR("Esd not installed"))
fi

if test $ALSA = guess ; then
	AC_CHECK_LIB(asound, snd_cards,
		[LIBS="$LIBS -lasound"
		 AC_DEFINE(USE_ALSA)],
		AC_MSG_WARN("ALSA not used"))
fi

if test $ESD = guess ; then
	AM_PATH_ESD(0.2.6,
		[CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
		 LIBS="$LIBS $ESD_LIBS"
		 AC_DEFINE(USE_ESD)],
		AC_MSG_WARN("Esd not used"))
fi

dnl Checks for X locale.
AC_CHECK_LIB(X11, _Xsetlocale, AC_DEFINE(X_LOCALE))
AC_CHECK_LIB(xpg4, setlocale, LIBS="$LIBS -lxpg4")

dnl Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_PID_T
AC_TYPE_SIZE_T

# If we use gcc 2.95, add -fpermissive to CFLAGS and CXXFLAGS
if test $ac_cv_prog_gcc = yes ; then
	AC_CACHE_CHECK(
		[if gcc version is >= 2.95],
		qvwm_cv_gcc_fpermissive,
		AC_LANG_SAVE
		AC_LANG_CPLUSPLUS
		AC_TRY_RUN([
int main()
{
#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 95)
	exit(0);
#else
	exit(1);
#endif
}],
		qvwm_cv_gcc_fpermissive=yes,
		qvwm_cv_gcc_fpermissive=no,
		qvwm_cv_gcc_fpermissive=no)
		AC_LANG_RESTORE)
	if test $qvwm_cv_gcc_fpermissive = yes ; then
		CFLAGS="$CFLAGS -fpermissive"
		CXXFLAGS="$CXXFLAGS -fpermissive"
	fi
fi

dnl Checks for functions.
AC_FUNC_VFORK
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(usleep)

dnl Makes a symbolic link
AC_LINK_FILES(man/$MANUAL, man/qvwm.1x)

# Select language for manual page from the specified parameter or, if missing,
# the LANGUAGE environment variable. LANG can not be used, as autoconf alters it
# to cope with broken systems.
if test -z "$MAN_LOCALE"; then
	MAN_LOCALE=$LANGUAGE
fi
case "$MAN_LOCALE" in
	# short iso|long iso|existing broken names|allowed parameter
	ja|ja_*|[jJ]apan*|[jJ][pP])
		MANUAL=qvwm.man-jp
	;;
	fr|fr_*|french*|c-french*|[fF][rR])
		MANUAL=qvwm.man-fr
	;;
	*)
		MANUAL=qvwm.man
	;;
esac

if test -z "$QVWMDIR"; then
	if test "x$prefix" = xNONE ; then
		QVWMDIR=$ac_default_prefix/share/qvwm
	else
		QVWMDIR=$prefix/share/qvwm
	fi
fi
AC_SUBST(QVWMDIR)

if test -z "$IMGDIR"; then
	IMGDIR=$QVWMDIR/images
fi
AC_SUBST(IMGDIR)

if test -z "$SNDDIR"; then
	SNDDIR=$QVWMDIR/sounds
fi
AC_SUBST(SNDDIR)

AC_OUTPUT(Makefile
	src/Makefile
	src/bitmaps/Makefile
	images/Makefile
	sounds/Makefile
	doc/Makefile
	man/Makefile
	rc/Makefile
	rc/system.qvwmrc
	rc/kanji.qvwmrc
	rc/french.qvwmrc
	rc/korean.qvwmrc
	rc/german.qvwmrc
	rc/portuguese.qvwmrc
	rc/italian.qvwmrc
	rc/light.qvwmrc)