ddidderr/zstd-rs
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[trace] Remove default definitions of weak symbols

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Instead of providing a default no-op implementation, check the symbols
for `NULL` before accessing them. Providing a default implementation
doesn't reliably work with dynamic linking. Depending on link order the
default implementations may not be overridden. By skipping the default
implementation, all link order issues are resolved. If the symbols
aren't provided the weak function will be `NULL`.
This commit is contained in:
Nick Terrell
2021-04-26 16:05:39 -07:00
parent 3e2fbfd056
commit 6cee3c2c4f
5 changed files with 11 additions and 52 deletions
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build/meson/lib/meson.build
-1
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@@ -22,7 +22,6 @@ libzstd_sources = [join_paths(zstd_rootdir, 'lib/common/entropy_common.c'),
join_paths(zstd_rootdir, 'lib/common/threading.c'),
join_paths(zstd_rootdir, 'lib/common/pool.c'),
join_paths(zstd_rootdir, 'lib/common/zstd_common.c'),
join_paths(zstd_rootdir, 'lib/common/zstd_trace.c'),
join_paths(zstd_rootdir, 'lib/common/error_private.c'),
join_paths(zstd_rootdir, 'lib/common/xxhash.c'),
join_paths(zstd_rootdir, 'lib/compress/hist.c'),