kumquat-buildroot/package/libinput/0001-meson.build-enable-CPP-include-check-only-in-case-CP.patch

From 3656db7fd23d166238cb8816c0d097095911b3fc Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Sat, 12 Jan 2019 10:22:38 +0100
Subject: [PATCH] meson.build: enable CPP include check only in case CPP
 compiler is available

Drop hard meson C++/CPP dependency, only needed for the build-time
header inclusion test, build the test only in case C++/CPP compiler
is available.

Upstream: https://gitlab.freedesktop.org/libinput/libinput/commit/4516ba977c1e22d01da4cc50a8ebffa5d11d73f1

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
[Rebased on 1.12.6, add upstream link]
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
---
 meson.build | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/meson.build b/meson.build
index 8127c674..86960d84 100644
--- a/meson.build
+++ b/meson.build
@@ -1,4 +1,4 @@
-project('libinput', 'c', 'cpp',
+project('libinput', 'c',
 	version : '1.12.6',
 	license : 'MIT/Expat',
 	default_options : [ 'c_std=gnu99', 'warning_level=2' ],
@@ -642,12 +642,14 @@ executable('test-build-linker',
 	   include_directories : [includes_src, includes_include],
 	   dependencies : [ dep_libinput, dep_libinput_util ],
 	   install : false)
-# test including from C++
-executable('test-build-cxx',
-	   'test/build-cxx.cc',
-	   dependencies : [dep_udev],
-	   include_directories : [includes_src, includes_include],
-	   install : false)
+# test including from C++ (in case CPP compiler is available)
+if add_languages('cpp', required: false)
+	executable('test-build-cxx',
+		   'test/build-cxx.cc',
+		   dependencies : [dep_udev],
+		   include_directories : [includes_src, includes_include],
+		   install : false)
+endif
 
 # This is the test suite runner, we allow disabling that one because of
 # dependencies
-- 
2.20.1