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a578696)
Summary:
Both the autoconf and cmake build scripts check for
`cplus_demangle_v3_callback()` and define
`FOLLY_HAVE_CPLUS_DEMANGLE_V3_CALLBACK` appropriately.
Reviewed By: meyering
Differential Revision:
D6745365
fbshipit-source-id:
3020593c60a21568781b835490b8d64913366cb9
-// TODO(tudorb): Detect this with autoconf for the open-source version.
-//
// __attribute__((__weak__)) doesn't work, because cplus_demangle_v3_callback
// is exported by an object file in libiberty.a, and the ELF spec says
// "The link editor does not extract archive members to resolve undefined weak
// __attribute__((__weak__)) doesn't work, because cplus_demangle_v3_callback
// is exported by an object file in libiberty.a, and the ELF spec says
// "The link editor does not extract archive members to resolve undefined weak