Add missing dependency __sys_fstatfs64 (#14845)

Fixes: #14602

src/library_syscall.js

@@ -1173,6 +1173,7 @@ var SyscallsLibrary = {
     {{{ makeSetValue('buf', C_STRUCTS.statfs.f_namelen, '255', 'i32') }}};
     return 0;
   },
+  __sys_fstatfs64__deps: ['__sys_statfs64'],
   __sys_fstatfs64: function(fd, size, buf) {
     var stream = SYSCALLS.getStreamFromFD(fd);
     return ___sys_statfs64(0, size, buf);

tests/test_core.py

@@ -5471,6 +5471,9 @@ def test_unistd_misc(self):
         self.emcc_args += ['-lnodefs.js']
       self.do_run_in_out_file_test('unistd/misc.c', js_engines=[config.NODE_JS], interleaved_output=False)
 
+  def test_unistd_fstatfs(self):
+    self.do_run_in_out_file_test('unistd/fstatfs.c')
+
   # i64s in the API, which we'd need to legalize for JS, so in standalone mode
   # all we can test is wasm VMs
   @also_with_standalone_wasm(wasm2c=True)

tests/unistd/fstatfs.c

@@ -0,0 +1,12 @@
+#include <assert.h>
+#include <stdio.h>
+#include <sys/vfs.h>
+#include <unistd.h>
+
+int main() {
+  struct statfs buf;
+  int rtn = fstatfs(STDOUT_FILENO, &buf);
+  assert(rtn == 0);
+  printf("f_type: %ld\n", buf.f_type);
+  return 0;
+}

tests/unistd/fstatfs.out

@@ -0,0 +1 @@
+f_type: 0