Third batch of the Makefile.in migration: near-standard modules
(utils windows commands database) and the program/.so outliers
(lef plot router ext2spice ext2sim extcheck net2ir graphics oa).
Pure renames -- content unchanged, so each still builds via the defs.mak
srcdir derivation; the @srcdir@ substitution follows.
* git mv <dir>/Makefile -> <dir>/Makefile.in (13 modules)
* configure.in: AC_CONFIG_FILES for each; regenerated configure.
* .gitignore: ignore each generated <dir>/Makefile, same commit.
These modules carry sibling-object refs (${MAGICDIR}/<mod>/lib*.o) and
custom rules; those keep working unchanged (${MAGICDIR} = the build top,
$(srcdir) from the derivation). readline/ remains on the -f path.
Verified out-of-tree: config.status writes 35 module Makefiles (22 + 13);
`make modules libs` builds all 33 module libraries (rc=0).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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