vendor dependencies, make some changes to how input is done

vendor/github.com/ebitengine/purego/internal/fakecgo/libcgo_darwin.go

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
+
+package fakecgo
+
+type (
+	pthread_mutex_t struct {
+		sig    int64
+		opaque [56]byte
+	}
+	pthread_cond_t struct {
+		sig    int64
+		opaque [40]byte
+	}
+)
+
+var (
+	PTHREAD_COND_INITIALIZER  = pthread_cond_t{sig: 0x3CB0B1BB}
+	PTHREAD_MUTEX_INITIALIZER = pthread_mutex_t{sig: 0x32AAABA7}
+)