Adding upstream version 1.65.7.

Signed-off-by: Daniel Baumann <daniel@debian.org>

all_test.go

@@ -0,0 +1,53 @@
+// Copyright 2025 The Libc Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package libc // import "modernc.org/libc"
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"testing"
+
+	ccgo "modernc.org/ccgo/v4/lib"
+)
+
+var (
+	goarch = runtime.GOARCH
+	goos   = runtime.GOOS
+)
+
+// https://gitlab.com/cznic/libc/-/issues/42
+func TestIssue42(t *testing.T) {
+	if goos == "windows" {
+		t.Skip("SKIP: windows")
+	}
+
+	dir := t.TempDir()
+
+	defer os.Remove("test_pread_pwrite.txt")
+
+	gof := filepath.Join(dir, "main.go")
+	if err := ccgo.NewTask(
+		goos, goarch,
+		[]string{
+			os.Args[0],
+			"-ignore-unsupported-alignment",
+			"-o", gof,
+			filepath.Join("testdata", "pread_test.c"),
+		},
+		os.Stdout, os.Stderr,
+		nil,
+	).Main(); err != nil {
+		t.Fatal(err)
+	}
+
+	b, err := exec.Command("go", "run", gof).CombinedOutput()
+	if err != nil {
+		t.Fatalf("FAIL err=%v\n%s", err, b)
+	}
+
+	t.Logf("%s", b)
+}