+
+def have_ld_plugin_support():
+ if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
+ return False
+
+ ld_cmd = subprocess.Popen(['ld', '--help'], stdout = subprocess.PIPE)
+ if not '-plugin' in ld_cmd.stdout.read():
+ return False
+ ld_cmd.wait()
+
+ ld_version = subprocess.Popen(['ld', '--version'], stdout = subprocess.PIPE)
+ if not 'GNU gold' in ld_version.stdout.read():
+ return False
+ ld_version.wait()
+
+ return True
+
+if have_ld_plugin_support():
+ config.available_features.add('ld_plugin')
+
+# Ask llvm-config about assertion mode.