From 28bdb653cbbc91a49aa06457cacaf1ab94a911e1 Mon Sep 17 00:00:00 2001
From: David Gibson <david@gibson.dropbear.id.au>
Date: Wed, 6 Aug 2025 13:37:03 +1000
Subject: [PATCH] build: Fix linker version script support detection

The tests for linker version script support were incorrect in both make
and meson build systems. The problem was that the script needs to match
the object it's used with, whereas the tests used dummy objects with no
matching symbols.

Updated both systems to test with proper symbol matching between the test
object and version script using a dedicated test.lds file.

Generated-by: Claude Code 1.0.65 (claude-sonnet-4@20250514)
---
 Makefile           | 2 +-
 libfdt/meson.build | 3 ++-
 libfdt/test.lds    | 6 ++++++
 3 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 libfdt/test.lds

diff --git a/Makefile b/Makefile
index 83d8220..c9dc5eb 100644
--- a/Makefile
+++ b/Makefile
@@ -68,7 +68,7 @@ else
 	CFLAGS += $(shell $(PKG_CONFIG) --cflags yaml-0.1)
 endif
 
-HAS_VERSION_SCRIPT := $(shell echo 'int main(){}' | $(CC) -Wl,--version-script=/dev/null -x c - -o /dev/null 2>/dev/null && echo y)
+HAS_VERSION_SCRIPT := $(shell printf 'void test_func(){}\nint main(){}' | $(CC) -Wl,--version-script=libfdt/test.lds -x c - && echo y || echo n)
 
 ifeq ($(HOSTOS),darwin)
 SHAREDLIB_EXT     = dylib
diff --git a/libfdt/meson.build b/libfdt/meson.build
index 68d4c1d..46a5b3a 100644
--- a/libfdt/meson.build
+++ b/libfdt/meson.build
@@ -1,5 +1,6 @@
 version_script = '-Wl,--version-script=@0@'.format(meson.current_source_dir() / 'version.lds')
-if not cc.has_link_argument(version_script)
+test_code = 'void test_func(){} int main(){}'
+if not cc.links(test_code, args: ['-Wl,--version-script=' + meson.current_source_dir() / 'test.lds'])
   version_script = []
 endif
 
diff --git a/libfdt/test.lds b/libfdt/test.lds
new file mode 100644
index 0000000..2e7b5d6
--- /dev/null
+++ b/libfdt/test.lds
@@ -0,0 +1,6 @@
+TEST {
+	global:
+		test_func;
+	local:
+		*;
+};
\ No newline at end of file