gnu: qt@5: Fix build failure on glibc 2.28.

* gnu/packages/patches/qt-5-renameat2.patch: New file.
* gnu/packages/qt.scm (qt)[source]: Use it.
* gnu/local.mk (dist_patch_DATA): Add it.

1 files changed, 35 insertions, 0 deletions

diff --git a/gnu/packages/patches/qt-5-renameat2.patch b/gnu/packages/patches/qt-5-renameat2.patch
new file mode 100644
index 0000000000..036070c7ff
--- /dev/null
+++ b/gnu/packages/patches/qt-5-renameat2.patch
@@ -0,0 +1,35 @@
+Avoid conflicting declaration of 'renameat2' on glibc 2.28
+(see <https://github.com/meta-qt5/meta-qt5/issues/94>.)
+
+Patch from <https://github.com/meta-qt5/meta-qt5/pull/95>
+by Andreas Müller <schnitzeltony@gmail.com>.
+
+---
+ src/corelib/io/qfilesystemengine_unix.cpp | 11 ++++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/src/corelib/io/qfilesystemengine_unix.cpp b/src/corelib/io/qfilesystemengine_unix.cpp
+index be6ce48d0cb..1bf1bebc7f1 100644
+--- a/qtbase/src/corelib/io/qfilesystemengine_unix.cpp
++++ b/qtbase/src/corelib/io/qfilesystemengine_unix.cpp
+@@ -98,6 +98,17 @@ extern "C" NSString *NSTemporaryDirectory();
+ #  define FICLONE       _IOW(0x94, 9, int)
+ #endif
+ 
++// renameat2/statx features for non bootstrapped build
++#ifndef QT_BOOTSTRAPPED
++#ifdef __GLIBC_PREREQ
++# define QT_FEATURE_renameat2 (__GLIBC_PREREQ(2, 28) ? 1 : -1)
++# define QT_FEATURE_statx (__GLIBC_PREREQ(2, 28) ? 1 : -1)
++#else
++# define QT_FEATURE_renameat2 -1
++# define QT_FEATURE_statx -1
++#endif
++#endif
++
+ #  if defined(Q_OS_ANDROID)
+ // renameat2() and statx() are disabled on Android because quite a few systems
+ // come with sandboxes that kill applications that make system calls outside a
+-- 
+2.14.4
+