e2f79f3c03
* cpplib.c (xcalloc): From from cppalloc.c.
* cpplib.c (cpp_push_buffer): If recursion too deap, return NULL
rather than exiting with fatal.
(make_assertion, cpp_expand_to_buffer, push_macro_expansion,
do_include, cpp_start_rea): Handle NULL return from cpp_push_buffer.
(output_line_command): Update position even if no_output.
(parse_clear_mark): Use fatal instead of abort.
From-SVN: r12207
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