If I compile from bash-4.2 from source, cumulatively applying patches through 52, things work fine. If I start from scratch and apply through 53, it errors out:
gcc -L./builtins -L./lib/readline -L./lib/readline -L./lib/glob -L./lib/tilde -L./lib/malloc -L./lib/sh -rdynamic -g -O2 -o bash shell.o eval.o y.tab.o general.o make_cmd.o print_cmd.o dispose_cmd.o execute_cmd.o variables.o copy_cmd.o error.o expr.o flags.o jobs.o subst.o hashcmd.o hashlib.o mailcheck.o trap.o input.o unwind_prot.o pathexp.o sig.o test.o version.o alias.o array.o arrayfunc.o assoc.o braces.o bracecomp.o bashhist.o bashline.o list.o stringlib.o locale.o findcmd.o redir.o pcomplete.o pcomplib.o syntax.o xmalloc.o -lbuiltins -lglob -lsh -lreadline -lhistory -ltermcap -ltilde -lmalloc -ldl ./builtins/libbuiltins.a(evalstring.o): In function `parse_and_execute': /home/ttrimmer/depot/ext/bash/patch/src/builtins/evalstring.c:274: undefined reference to `parser_remaining_input' collect2: ld returned 1 exit status make: *** [bash] Error 1 I can see parser_remaining_input patched in parse.y and builtins/evalstring.c. However, it will not compile.