AC_INIT(src/eviacamapp.cpp)
AC_PREREQ(2.61)
AM_CONFIG_HEADER(config.h)

##############################################################
# Editable parameters
AM_INIT_AUTOMAKE([eviacam], 2.0.1)
COPYRIGHT="© 2008-15"
PUBLISHER="César Mauri Loba"
##############################################################

AC_SUBST(COPYRIGHT, [`echo $COPYRIGHT`])
AC_SUBST(PUBLISHER, [`echo $PUBLISHER`])

# Use libtool for building static libraries only
#
#AC_DISABLE_SHARED
AC_ENABLE_SHARED
AC_DISABLE_STATIC

AC_PROG_LIBTOOL
AM_PROG_LIBTOOL

# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_AWK
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_MKDIR_P

ALL_LINGUAS="ca es gl it tr ast de oc fr ar he ru pt_BR ja el lt zh_TW zh_CN"

AM_GNU_GETTEXT([external])

# Check debug mode
AC_ARG_ENABLE(debug,
[  --enable-debug    Turn on debugging],
[case "${enableval}" in
yes) debug=true ;;
full) debug=true ;;
no)  debug=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-debug) ;;
esac],[debug=false])
AM_CONDITIONAL(DEBUG, test x"$debug" = x"true")


# Checks for libraries.
# FIXME: Replace `main' with a function of each library

AC_CHECK_LIB([X11], [main])
AC_CHECK_LIB([Xext], [main], , AC_MSG_ERROR([libXext is required.]) )
AC_CHECK_LIB([Xtst], [main], , AC_MSG_ERROR([libXtst is required.]) )

AC_CHECK_FUNCS([pow])
AC_CHECK_FUNCS([sqrt])

#AC_CHECK_LIB([cv], [main])
#AC_CHECK_LIB([cvaux], [main])
#AC_CHECK_LIB([cxcore], [main])
#AC_CHECK_LIB([highgui], [main])
#AC_CHECK_LIB([ml], [main])

# -----------------       gtk+-2.0  --------------------
# TODO: check if gtk-2.0-devel is really needed
# Put this early on, since gtk may rely on it.
AC_PATH_XTRA

GTKCONFIG='pkg-config gtk+-2.0'
AC_DEFUN([GTKTEST],
[
	AC_REQUIRE([AC_PROG_AWK])
	AC_MSG_CHECKING([gdk version])
	if gdkversion=`pkg-config gtk+-2.0 --modversion`; then
		AC_MSG_RESULT([$gdkversion])
	else
		AC_MSG_RESULT([not found])
		AC_MSG_ERROR([gtk+-2.0 is required.])
	fi])

# Call test func
GTKTEST

GTK_CPPFLAGS="`$GTKCONFIG --cflags`"
GTK_LIBS="`$GTKCONFIG --libs`"

# -----------------   gtk+-2.0      --------------------

# -----------------       wxWidgets --------------------
WXCONFIG=wx-config
AC_ARG_WITH(wx-config,
[[  --with-wx-config=FILE     Use the given path to wx-config when determining
                            wxWidgets configuration; defaults to "wx-config"]],
[
    if test "$withval" != "yes" -a "$withval" != ""; then
        WXCONFIG=$withval
    fi
])

wxversion=0

AC_DEFUN([WXTEST],
[
	AC_REQUIRE([AC_PROG_AWK])
	AC_MSG_CHECKING([wxWidgets version])
	if wxversion=`$WXCONFIG --version`; then
		AC_MSG_RESULT([$wxversion])
	else
		AC_MSG_RESULT([not found])
		AC_MSG_ERROR([wxWidgets is required. Try --with-wx-config.])
	fi])

# Call WXTEST func
WXTEST

# Verify minimum requires
vers=`echo $wxversion | $AWK 'BEGIN { FS = "."; } { printf "% d", ($1 * 1000 + $2) * 1000 + $3;}'`
if test -n "$vers" && test "$vers" -ge 2006003; then
	if ! "$debug"; then
		WX_CPPFLAGS="`$WXCONFIG --cppflags`"
		WX_CXXFLAGS="`$WXCONFIG --cxxflags | sed -e 's/-fno-exceptions//'`"
		WX_LIBS="`$WXCONFIG --libs`"
	else
# Lines below are used to with to wx debug library
#		WX_CPPFLAGS="`$WXCONFIG --debug=yes --cppflags`"
#		WX_CXXFLAGS="`$WXCONFIG --debug=yes --cxxflags | sed -e 's/-fno-exceptions//'`"
#		WX_LIBS="`$WXCONFIG --debug=yes --libs`"
		WX_CPPFLAGS="`$WXCONFIG --cppflags`"
		WX_CXXFLAGS="`$WXCONFIG --cxxflags | sed -e 's/-fno-exceptions//'`"
		WX_LIBS="`$WXCONFIG --libs`"
	fi
else
	AC_MSG_ERROR([wxWidgets 2.6.3 or newer is required])
fi
# -----------------       wxWidgets --------------------

# -----------------       opencv  --------------------
OPENCVCONFIG='pkg-config opencv'
AC_DEFUN([OPENCVTEST],
[
	AC_REQUIRE([AC_PROG_AWK])
	AC_MSG_CHECKING([opencv version])
	if opencvversion=`pkg-config opencv --modversion`; then
		AC_MSG_RESULT([$opencvversion])
	else
		AC_MSG_RESULT([not found])
		AC_MSG_ERROR([opencv is required.])
	fi])

# Call OPENCVTEST func
OPENCVTEST

OPENCVVERSION=`echo $opencvversion | $AWK 'BEGIN { FS = "."; } { printf "% d", ($1 * 1000 + $2) * 1000 + $3;}'`
AC_SUBST(OPENCVVERSION)
# -----------------       opencv  --------------------

# Checks for header files.
AC_PATH_X
AC_CHECK_HEADERS([float.h])
AC_CHECK_HEADERS([sys/timeb.h])

AC_CHECK_HEADER([libv4l1-videodev.h],
	[AC_SUBST(VIDEODEV_INCLUDE_FILE, libv4l1-videodev.h)],
	[AC_CHECK_HEADER([linux/videodev.h],
		[AC_SUBST(VIDEODEV_INCLUDE_FILE, linux/videodev.h)],
		[AC_MSG_ERROR([Couldn't find linux/videodev.h nor libv4l1-videodev.h])])
	]
	)

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE

OPENCV_CPPFLAGS="`$OPENCVCONFIG --cflags`"
OPENCV_LIBS="`$OPENCVCONFIG --libs`"

COMPFLAGS="-Wall -fexceptions -Wconversion $WX_CPPFLAGS $OPENCV_CPPFLAGS $GTK_CPPFLAGS"


if ! "$debug"; then
	COMPFLAGS="$COMPFLAGS -DNDEBUG -O2"
else
	COMPFLAGS="$COMPFLAGS -DDEBUG -g -O0"
fi

#CPPFLAGS="$CPPFLAGS $COMPFLAGS"
CPPFLAGS="$COMPFLAGS"
#CXXFLAGS="$CXXFLAGS $COMPFLAGS"
CXXFLAGS="$COMPFLAGS"

#AC_MSG_NOTICE([CPPFLAGS: $CPPFLAGS])
#AC_MSG_NOTICE([CXXFLAGS: $CXXFLAGS])

LDFLAGS="$LDFLAGS -Wl,--as-needed"

AC_SUBST(WX_LIBS)
AC_SUBST(OPENCV_LIBS)
AC_SUBST(GTK_LIBS)

# libtool variables
Xsed="sed -e s/^X//"
LTLIBOBJS=`echo X"$LIBOBJS"|\
           [$Xsed -e "s,\.[^.]* ,.lo ,g;s,\.[^.]*$,.lo,"]`
AC_SUBST(LTLIBOBJS)

#LTALLOCA=`echo X"$ALLOCA"|[$Xsed -e "s,\.$[^.]*,.lo,g"]`
#AC_SUBST(LTALLOCA)
#BUILD_DATE=`LC_ALL="C" date`

AC_OUTPUT(
	[Makefile] 
	[po/Makefile.in] 
	[doc/Makefile] 
	[wxutil/Makefile] 
	[creavision/Makefile] 
	[creavision/libwebcam/Makefile] 
	[simplelog/Makefile] 
	[wxcamwindow/Makefile] 
	[src/Makefile] 
	[src/version.h]
	[src/eviacamloader.c]
	[rpm/Makefile]
	[rpm/eviacam.spec]
	[win32/installer.iss]
	[creavision/libwebcam/incvideodev.h]
)