Re: make universe fails with MAKEOBJDIRPREFIX [cross builds part: sh: ./make_keys: Exec format error for init_keytry.h]

[Mark Millard]

Quoting:

> --- lib/ncurses/ncurses__L ---
> ./make_keys keys.list > init_keytry.h
. .
> --- lib/ncurses/ncurses__L ---
> sh: ./make_keys: Exec format error
> *** [init_keytry.h] Error code 126


Since the reworking of the build handling in recent (many) months "sh: ./make_keys: Exec format error" is a long standing problem for buildworld for cross builds. The native part of the build execution is trying to execute the cross-build target's make_keys (that was likely left from a prior cross-build and now doing incremental-build activity). lib/ncurses/ncurses__L is not the only place that this can happen. There is past list exchanges for this issue with other examples.

I rebuild after cleanworld when this happens in order to force a full rebuild instead of an incremental one --but I only build one cross build target at a time, not universe. I've never had such an after-cleanworld rebuild fail: only some later incremental builds.

Luckily in my experience so far most incremental builds do not go back through those areas (such as lib/ncurses/ncurses__L ) and so do not try to execute make_keys (stated in terms of this example). So the incremental builds for me are usually effective --but sometimes lib/ncurses/ncurses__L is rebuilt.

It has been a fairly long time since my 11.0 related activities (tracking stable/11 now) have run into this but likely lib/ncurses/ncurses__L (and the like) simply have not rebuilt in my cross builds. I've no head (CURRENT) activities going on at this point.

===
Mark Millard
markmi at dsl-only.net

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