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https://github.com/json-c/json-c/pull/988
From: ShengYi Hung <aokblast@FreeBSD.org>
Date: Tue, 20 Oct 2026 23:23:48 -0500
Subject: [PATCH] meson: Fix lld version script detection
In lld, a symbol version with undefined symbol is rejected by
default. In previous CMake, we use a wildcard for all symbol, which is
fine for empty program. Add --undefined-version to the detection to
fix it.
---
--- a/meson.build
+++ b/meson.build
@@ -227,12 +227,18 @@
add_project_arguments(cc.get_supported_arguments('-Wno-unused-parameter'), language : 'c')
-sym = cc.get_supported_link_arguments(
- '-Wl,--version-script,@0@/json-c.sym'.format(
- meson.current_source_dir(),
- ),
+version_script_arg = '-Wl,--version-script,@0@/json-c.sym'.format(
+ meson.current_source_dir(),
)
+sym = []
+if cc.has_link_argument(version_script_arg) or cc.has_multi_link_arguments(
+ version_script_arg,
+ '-Wl,--undefined-version',
+)
+ sym = [version_script_arg]
+endif
+
# Source files
sources = files(
'arraylist.c', 'debug.c', 'json_c_version.c', 'json_object.c',
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