ios - iOS duplicate symbols from different versions of the same library

Question

App A requires third-party libraries B and C. Both B and C include different versions of library D (from a further third-party). No third-party source code is available. This will give duplicate symbol errors when linking the app.

What solutions are available?

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Related question involving identical libraries, allowing one copy to simply be deleted: How to handle duplicate symbol error from 3rd party libraries?

Answer 1

这通过重命名 B 中的冲突符号（以及它的 D 版本，如果单独）来解决。这可以直接在二进制文件上完成，只要重命名的长度与原始文件的长度相同（例如，通过反转库前缀）。

local $/ = "\0";
open my $fh, '<+', $library;
binmode $fh;

while (my $field = <$fh>) {
    my $length = length $field;
    chomp $field;

    if (defined $translation{$field}) {
        seek $fh, -$length, SEEK_CUR;
        print $fh $translation{$field};
    }
}