plugins/meson.build: fix linker issue with weird paths

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Stefan Weil <sw@weilnetz.de>
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/712
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211129140932.4115115-5-alex.bennee@linaro.org>

plugins/meson.build

@@ -2,9 +2,9 @@ plugin_ldflags = []
 # Modules need more symbols than just those in plugins/qemu-plugins.symbols
 if not enable_modules
   if 'CONFIG_HAS_LD_DYNAMIC_LIST' in config_host
-    plugin_ldflags = ['-Wl,--dynamic-list=' + (meson.project_build_root() / 'qemu-plugins-ld.symbols')]
+    plugin_ldflags = ['-Wl,--dynamic-list=qemu-plugins-ld.symbols']
   elif 'CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST' in config_host
-    plugin_ldflags = ['-Wl,-exported_symbols_list,' + (meson.project_build_root() / 'qemu-plugins-ld64.symbols')]
+    plugin_ldflags = ['-Wl,-exported_symbols_list,qemu-plugins-ld64.symbols']
   endif
 endif