From: Viktor Szakats <commit@vsz.me>
Date: Mon, 30 Dec 2024 22:48:09 +0000 (+0100)
Subject: cmake: fix `net/in.h` detection for MS-DOS
X-Git-Tag: curl-8_12_0~234
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4badbbeb5bb8c4466efdb5d597f1ae97ab3edcb9;p=thirdparty%2Fcurl.git

cmake: fix `net/in.h` detection for MS-DOS

Syncing this with autotools.

Follow-up to 8e345057761a8f796403923a96f2c8fd3edca647 #15164
Closes #15869
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f79895d044..d2f8a899c7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1553,7 +1553,7 @@ check_include_file("io.h"             HAVE_IO_H)
 check_include_file_concat_curl("libgen.h"         HAVE_LIBGEN_H)
 check_include_file("linux/tcp.h"      HAVE_LINUX_TCP_H)
 check_include_file("locale.h"         HAVE_LOCALE_H)
-check_include_file("net/if.h"         HAVE_NET_IF_H)
+check_include_file_concat_curl("net/if.h"         HAVE_NET_IF_H)  # sys/select.h (e.g. MS-DOS/Watt-32)
 check_include_file_concat_curl("netdb.h"          HAVE_NETDB_H)
 check_include_file_concat_curl("netinet/in.h"     HAVE_NETINET_IN_H)
 check_include_file("netinet/in6.h"    HAVE_NETINET_IN6_H)