qtbase: Fix build with gcc 4.8

Fixes errors like

In file included from ../include/QtCore/qendian.h:1:0,
                 from TOPDIR/build/tmp/work/x86_64-linux/qtbase-native/5.12.0+gitAUTOINC+13ed06640c-r0/git/src/corelib/codecs/qutfcodec.cpp:43:
../include/QtCore/../../../git/src/corelib/global/qendian.h:165:61: error: redeclaration ‘constexpr T qbswap(T) [with T = qfloat16]’ differs in ‘constexpr’

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/recipes-qt/qt5/qtbase/0021-Bootstrap-without-linkat-feature.patch b/recipes-qt/qt5/qtbase/0021-Bootstrap-without-linkat-feature.patch
new file mode 100644
index 00000000..6ac54fdf
--- /dev/null
+++ b/recipes-qt/qt5/qtbase/0021-Bootstrap-without-linkat-feature.patch
@@ -0,0 +1,27 @@
+From f21492a98b2a738e53134be8b7bf8ce44af71712 Mon Sep 17 00:00:00 2001
+From: Samuli Piippo <samuli.piippo@qt.io>
+Date: Fri, 24 Nov 2017 15:16:31 +0200
+Subject: [PATCH] Bootstrap without linkat feature
+
+qmake does not work together with pseudo when unnamed temporary files
+are used with linkat.
+
+Upstream-Status: Inappropriate [OE specific]
+[YOCTO #11996]
+---
+ src/corelib/global/qconfig-bootstrapped.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/corelib/global/qconfig-bootstrapped.h b/src/corelib/global/qconfig-bootstrapped.h
+index f6a5d6b1d4..de0111cc3c 100644
+--- a/src/corelib/global/qconfig-bootstrapped.h
++++ b/src/corelib/global/qconfig-bootstrapped.h
+@@ -91,7 +91,7 @@
+ #define QT_FEATURE_itemmodel -1
+ #define QT_FEATURE_library -1
+ #ifdef __linux__
+-# define QT_FEATURE_linkat 1
++# define QT_FEATURE_linkat -1
+ #else
+ # define QT_FEATURE_linkat -1
+ #endif