Steps to Reproduce:
1. Unpack xsldbg 3.1.7 source, change to the source directory
2. Run aclocal-1.8; automake-1.8

Actual Results:  
File src/libxsldbg/Makefile.in contains a bogus replica of a multi-line variable
assignment without trailing backslashes:

SOURCES =
        $(noinst_HEADERS)
        xsldbg.c
        cmds.h
        debugXSL.c
        arraylist.c
        callstack.c
        breakpoint.c
        search.c
        debug.c
        files.c
        utils.c
        options.c
        breakpoint_cmds.c
        template_cmds.c
        nodeview_cmds.c
        os_cmds.c
        file_cmds.c
        param_cmds.c
        option_cmds.c
        trace_cmds.c

A correct assignment to SOURCES with the same file list can be seen later in the
file.


Expected Results:  
Correct src/libxsldbg/Makefile.in file as produced by automake-1.7 in the same
source tree.