#!/bin/sh

XINERAMA=yes
XCONFIG=$1/qmake.conf
VERBOSE=$2
shift 2
IN_LIBDIRS=""
IN_INCDIRS=""
PARAMS=$@
for PARAM in $PARAMS; do
    PREFIX=`echo $PARAM | sed 's/^\(..\).*/\1/'`
    case $PREFIX in
    -L)
	CLIBDIR=`echo $PARAM | sed -e 's/^-L//'`
	IN_LIBDIRS="$IN_LIBDIRS $CLIBDIR"
	;;
    -I)
        CINCDIR=`echo $PARAM | sed -e 's/^-I//'`
        IN_INCDIRS="$IN_INCDIRS $CINCDIR"
        ;;
    *) ;;
    esac 
done

# debuggery
[ "$VERBOSE" = "yes" ] && echo "Xinerama auto-detection... ($*)"

# check for lib
XDIRS=`sed -n -e '/^QMAKE_LIBDIR_X11[	]*=/ { s/[^=]*=[	 ]*//; s/-L/ /g; p; }' $XCONFIG`
LIBDIRS="$IN_LIBDIRS $XDIRS /usr/shlib /usr/lib /lib"
F=
for LIBDIR in $LIBDIRS; do
    FOUND_LIB=`ls $LIBDIR/libXinerama.* 2>/dev/null`
    if [ ! -z "$FOUND_LIB" ]; then
	F=yes
	[ "$VERBOSE" = "yes" ] && echo "  Found Xinerama lib in $LIBDIR"
	break
    fi
done
if [ -z "$F" ]; then
    XINERAMA=no
    if [ "$VERBOSE" = "yes" ]; then
	echo "  Could not find Xinerama lib anywhere in $LIBDIRS"
    fi
fi
    
# check for headers
if [ "$XINERAMA" = "yes" ]; then
    INC="X11/extensions/Xinerama.h"
    XDIRS=`sed -n -e '/^QMAKE_INCDIR_X11[	]*=/ { s/[^=]*=[	 ]*//; s/-I/ /g; p; }' $XCONFIG`
    INCDIRS="$IN_INCDIRS $XDIRS /usr/include /include"
    F=
    for INCDIR in $INCDIRS; do
	if [ -f $INCDIR/$INC ]; then
	    F=yes
	    [ "$VERBOSE" = "yes" ] && echo "  Found $INC in $INCDIR"
	    break
	fi
    done
    if [ -z "$F" ]; then
	XINERAMA=no
	if [ "$VERBOSE" = "yes" ]; then
	    echo "  Could not find $INC anywhere in $INCDIRS"
	fi
    fi
fi

# done
if [ "$XINERAMA" != "yes" ]; then
    [ "$VERBOSE" = "yes" ] && echo "Xinerama disabled."
    exit 0
else
    [ "$VERBOSE" = "yes" ] && echo "Xinerama enabled."
    exit 1
fi