From 8699aa501c4d4e1567ebe8901e5ec80cadaa9323 Mon Sep 17 00:00:00 2001

From: Felix Yan <felixonmars@archlinux.org>

Date: Thu, 12 Aug 2021 02:44:43 +0800

Subject: [PATCH] deps: fix building with system c-ares on Linux

The change in #39724 breaks building with system c-ares

(`--shared-cares`):

```

In file included from ../src/cares_wrap.cc:25:

../src/cares_wrap.h:25:11: fatal error: ares_nameser.h: No such file or

directory

   25 | # include <ares_nameser.h>

      |           ^~~~~~~~~~~~~~~~

```

Since `ares_nameser.h` isn't available with a default system c-ares

installation, let's add back the include check and use the old

`arpa/nameser.h` routine instead.

Tested to build fine on Arch Linux with shared c-ares.

---

 src/cares_wrap.h | 8 ++++++++

 1 file changed, 8 insertions(+)

diff --git a/src/cares_wrap.h b/src/cares_wrap.h

index 60f99e65edf3..d5575ac64db4 100644

--- a/src/cares_wrap.h

+++ b/src/cares_wrap.h

@@ -22,7 +22,15 @@

 # include <netdb.h>

 #endif  // __POSIX__

+#if defined(__ANDROID__) || \

+    defined(__MINGW32__) || \

+    defined(__OpenBSD__) || \

+    defined(_MSC_VER)

+

 # include <ares_nameser.h>

+#else

+# include <arpa/nameser.h>

+#endif

 namespace node {

 namespace cares_wrap {