| From: | Wolfgang Walther <walther(at)technowledgy(dot)de> |
|---|---|
| To: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andres Freund <andres(at)anarazel(dot)de> |
| Subject: | Build with LTO / -flto on macOS |
| Date: | 2024-06-03 14:22:01 |
| Message-ID: | 427c7c25-e8e1-4fc5-a1fb-01ceff185e5b@technowledgy.de |
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| Thread: | |
| Lists: | pgsql-hackers |
Building with clang and -flto on macOS currently fails with errors
similar to [1]. This is because the --export-dynamic flag is called
-export_dynamic [2] instead and we have not been passing this variant to
the linker, so far.
Attached patch fixes that for configure/make.
CC: Tom, who hit the same in [3] and Andres who last touched
--export-dynamic in 9db49fc5bfdc0126be03f4b8986013e59d93b91d.
Will also create an issue upstream for meson, because the logic is
built-in there.
Would be great if this could be back-patched, since this is the same in
all live versions.
Best,
Wolfgang
[1]: https://postgr.es/m/1581936537572-0.post%40n3.nabble.com
[2]:
https://opensource.apple.com/source/ld64/ld64-609/doc/man/man1/ld.1.auto.html
(grep for export_dynamic)
[3]: https://postgr.es/m/21800.1499270547%40sss.pgh.pa.us
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Make-building-with-clang-s-LTO-work-on-macOS.patch | text/x-patch | 3.9 KB |
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