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39 lines
1.2 KiB
39 lines
1.2 KiB
From e408786075b9540f76783f5c3ce87f6d1ece13cf Mon Sep 17 00:00:00 2001
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From: Guillem Jover <guillem@hadrons.org>
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Date: Sun, 12 Feb 2023 23:55:09 +0100
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Subject: [PATCH] build: Fix version script linker support detection
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When the linker uses --no-undefined-version either specified by the user
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or as the default behavior (such as with newer clang >= 16 releases), a missing symbol definition will cause a linker error if that symbol is
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listed in the version script.
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Bug: https://bugs.gentoo.org/894010
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Upstream issue: https://gitlab.freedesktop.org/libbsd/libmd/-/issues/1
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Upstream commit: https://gitlab.freedesktop.org/libbsd/libmd/-/commit/e408786075b9540f76783f5c3ce87f6d1ece13cf
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---
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m4/libmd-linker.m4 | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/m4/libmd-linker.m4 b/m4/libmd-linker.m4
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index 7d1236a..3d6edcd 100644
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--- a/m4/libmd-linker.m4
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+++ b/m4/libmd-linker.m4
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@@ -8,7 +8,11 @@ AC_DEFUN([LIBMD_LINKER_VERSION_SCRIPT], [
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save_LDFLAGS=$LDFLAGS
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LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
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AC_LINK_IFELSE([
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- AC_LANG_PROGRAM([], [])
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+ AC_LANG_PROGRAM([[
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+extern int symbol(void);
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+int symbol(void) { return 0; }
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+]], [[
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+]])
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], [
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libmd_cv_version_script=yes
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], [
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--
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GitLab
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