From: Anton Khirnov <anton@khirnov.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH] configure: add -fno-semantic-interposition to optflags
Date: Mon, 30 Jan 2023 13:22:13 +0100
Message-ID: <20230130122213.28822-1-anton@khirnov.net> (raw)
Gcc flag -fsemantic-interposition, which is on by default with current
gcc versions, makes the compiler assume exported symbols can be
interposed by the linker, which prevents various kinds of optimization.
Since we do not support such interposition and disable it with
-Bsymbolic, explicitly disable this assumption.
---
configure | 1 +
1 file changed, 1 insertion(+)
diff --git a/configure b/configure
index cb895cf9ac..6f702bfb64 100755
--- a/configure
+++ b/configure
@@ -7174,6 +7174,7 @@ check_optflags(){
check_optflags $optflags
check_optflags -fno-math-errno
check_optflags -fno-signed-zeros
+check_optflags -fno-semantic-interposition
if enabled lto; then
test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
--
2.35.1
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next reply other threads:[~2023-01-30 12:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-30 12:22 Anton Khirnov [this message]
2023-01-31 15:11 ` Andreas Rheinhardt
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