#####################################################################
# Look for $$package in the sandbox
#
# source: $$filename 
#####################################################################
AC_MSG_CHECKING([$$package in sandbox])
if test x$sandbox_location = x
then
	if test x$enabled_sandbox = xno
	then
		AC_MSG_RESULT([no - sandbox disabled])	
	else
		AC_MSG_RESULT([no - sandbox not found])	
	fi
else
	AC_MSG_RESULT([searching headers])	
	if test x$found_$$package_esc = xno
	then
		found=1
		for file in $$headers{$$package}
		do
			AC_MSG_CHECKING([$file for $$package in sandbox])
			if test -r $sandbox_location/$$sandbox{$$package}/include/$file
			then
				AC_MSG_RESULT([yes])
				include_dirs_$$package_esc="$sandbox_location/$$sandbox{$$package}/include"
			else
				AC_MSG_RESULT([no])
				found=0
			fi
		done
		AC_MSG_CHECKING([[$$package header(s) found in sandbox]])
		if test $found = 1
		then
			AC_MSG_RESULT([yes])
			sep=""
			found=1
			libdirset=no
			for file in $$libs{$$package}
			do
				AC_MSG_CHECKING([lib$file for $$package in sandbox])
				if test -r $sandbox_location/$$sandbox{$$package}/lib/lib$file.$dllext
					then
					AC_MSG_RESULT([yes])
					libs_in_sandbox_$$package_esc="$libs_in_sandbox_$$package_esc$sep$file"
					if test x$libdirset = xno
					then
						lib_dirs_$$package_esc="$sandbox_location/$$sandbox{$$package}/lib"
						libdirset=yes
					fi
					sep=" "
				else
					AC_MSG_RESULT([no])
					found=0
				fi
			done
			AC_MSG_CHECKING([[all $$package lib(s) found in sandbox]])
			if test $found = 1
			then
				AC_MSG_RESULT([yes - adding to library path])
				found_$$package_esc=yes
				found_in_sandbox_$$package_esc=yes
			else
				AC_MSG_RESULT([no])
				found_$$package_esc=no
			fi
		else
			AC_MSG_RESULT([no])
			found_$$package_esc=no
		fi
	fi
fi
if test x$found_in_sandbox_$$package_esc = xyes
then
	setenv DYLD_LIBRARY_PATH "$DYLD_LIBRARY_PATH:$lib_dirs_$$package_esc"
	AC_MSG_NOTICE([DYLD_LIBRARY_PATH is now $DYLD_LIBRARY_PATH])
	LIBS=
	old_CXXFLAGS=$CXXFLAGS
	old_LDFLAGS=$LDFLAGS
	for tmp in $include_dirs_$$package_esc
	do
		CXXFLAGS="$CXXFLAGS -I$tmp"
	done
	for tmp in $lib_dirs_$$package_esc
	do
		LDFLAGS="$LDFLAGS -L$tmp"
	done
	AC_MSG_CHECKING([libraries needed for $$package])
	AC_COMPILE_IFELSE(
	[
		AC_LANG_SOURCE(
[[
$$source{$$package}
]]	
	)],[
		links_ok=0
		tmp_libs=""
		sep=""
		for tmp in $libs_in_sandbox_$$package_esc $$ext_libs{$$package}
		do
			LDFLAGS="$LDFLAGS -l$tmp"
			tmp_libs="$tmp_libs$sep$tmp"
			sep=" "
			AC_LINK_IFELSE(
			[
				AC_LANG_SOURCE(
[[
$$source{$$package};
]])	
			],[
				links_ok=yes
			],[
			]
			)
			if test x$links_ok = xyes; then
				break 2
			fi
		done
		if test x$links_ok = xyes; then
			libs_$$package_esc=$tmp_libs
			found_$$package_esc=yes
			AC_MSG_RESULT([$libs_$$package_esc])
		else
			AC_MSG_RESULT([linking failed])
		fi
	],[
		AC_MSG_RESULT([compilation failed])
	])
	CXXFLAGS=$old_CXXFLAGS
	LDFLAGS=$old_LDFLAGS
fi