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8e72608c1c
All variables that are assigned a value should be exported while
the allexport shell option is enabled. This works in most cases,
but variables assigned to with ${var:=foo} or $((var=123)) aren't
exported while allexport is on.
src/cmd/ksh93/sh/name.c:
- nv_putval(): This is the central assignment function; all forms
of variable assignment end up here. So this is the best place
to check for SH_ALLEXPORT and turn on the export attribute.
- nv_setlist(): Remove allexport handling, now redundant.
src/cmd/ksh93/bltins/read.c: sh_readline():
- Remove allexport handling, now redundant.
src/cmd/ksh93/sh/main.c: sh_main():
- nv_putval() is used to initialize PS4 and IFS using nv_putval();
this is after an -a/--allexport specified on the ksh command
line has been processed, so temporarily turn that off.
Co-authored-by: Martijn Dekker <martijn@inlv.org>
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