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39 lines
1.7 KiB
Text
39 lines
1.7 KiB
Text
-*-text-*-
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This subtree contains a locally modified version of libltdl from
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libtool.
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guile-ltdl.h describes the interface that Guile actually uses.
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guile-ltdl.c is the main source file which directly #includes
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raw-ltdl.h and raw-ltdl.c
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The two raw-* files are Guile's patched versions of the
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upstream/ltdl.* files, the latter of which are the original libtool
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source from which the current raw-* files are derived.
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We use this unusual inclusion trick, along with a few modifications
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to the raw-* files and some #defines in guile-ltdl.c to allow us to
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use the upstream source with as few unnecessary changes as possible,
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while still making all of the upstream symbols non-extern. This
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means that libguile-ltdl *only* exports the few symbols that Guile
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actually needs right now.
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In general libguile-ltdl exports the needed libltdl functions and
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data structures with scm_ prepended to them, so we have
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scm_lt_dlinit, etc.
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The upstream/* subdirectory contains the clean upstream source from
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which the raw-ltdl.h and raw-ltdl.c files were derived, and an
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automatically generated diff from the upstream. Note that during
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the diff process we automatically remove a set of changes we've made
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to the upstream source (mostly related to making all of the upstream
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exports static) that are uninteresting outside of Guile.
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We hope that taking these steps will make it easier to fold our
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changes back into the main version of libltdl, and in fact, it looks
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like most, if not all of our original serious bug fixes have been
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incorporated upstream, leaving essentially only the scoping related
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changes mentioned above in our filtered upstream/*.diff files.
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The current upstream/* source is from libtool version 1.5.
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