1From 758ba58c81273d9075a539216f8a322935c2e434 Mon Sep 17 00:00:00 2001
2From: Paul Cercueil <paul@crapouillou.net>
3Date: Fri, 12 Nov 2021 16:49:21 +0000
4Subject: [PATCH] CMake: Move include(CheckCSourceCompiles) before its macros
5 are used
6
7Move include(CheckCSourceCompiles) before any of the
8check_c_source_compiles() macros is called.
9
10This fixes a CMake error when compiling with WITH_NETWORK_GET_BUFFER
11disabled.
12
13Upstream-Status: Accepted [https://github.com/analogdevicesinc/libiio/commit/758ba58c81273d9075a539216f8a322935c2e434]
14
15Signed-off-by: Paul Cercueil <paul@crapouillou.net>
16---
17 CMakeLists.txt | 3 ++-
18 1 file changed, 2 insertions(+), 1 deletion(-)
19
20diff --git a/CMakeLists.txt b/CMakeLists.txt
21index 7437136c8210..05b4feff233b 100644
22--- a/CMakeLists.txt
23+++ b/CMakeLists.txt
24@@ -296,9 +296,10 @@ if(WITH_NETWORK_BACKEND)
25 	endif()
26
27 	if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
28+		include(CheckCSourceCompiles)
29+
30 		option(WITH_NETWORK_GET_BUFFER "Enable experimental zero-copy transfers" OFF)
31 		if (WITH_NETWORK_GET_BUFFER)
32-			include(CheckCSourceCompiles)
33 			check_c_source_compiles("#define _GNU_SOURCE=1\n#include <fcntl.h>\nint main(void) { return O_TMPFILE; }"
34 				HAS_O_TMPFILE)
35
36--
372.34.1
38
39