gnu: clang-runtime-14: Fix build with newer glibc.

* gnu/packages/llvm.scm (%llvm-patches): Add patch for llvm-14.
* gnu/packages/patches/clang-runtime-14-glibc-2.36-compat.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

Change-Id: Ib5350be48f6580d00cb9b70435931abf0444c664

2 files changed, 52 insertions, 1 deletions

diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
index f27ab5e3b4..71ceb4e44f 100644
--- a/gnu/packages/llvm.scm
+++ b/gnu/packages/llvm.scm
@@ -548,7 +548,8 @@ output), and Binutils.")
     ("18.1.8" . "1l9wm0g9jrpdf309kxjx7xrzf13h81kz8bbp0md14nrz38qll9la")))
 
 (define %llvm-patches
-  '(("14.0.6" . ("clang-14.0-libc-search-path.patch"))
+  '(("14.0.6" . ("clang-14.0-libc-search-path.patch"
+                 "clang-runtime-14-glibc-2.36-compat.patch"))
     ("15.0.7" . ("clang-15.0-libc-search-path.patch"))
     ("16.0.6" . ("clang-16.0-libc-search-path.patch"))
     ("17.0.6" . ("clang-17.0-libc-search-path.patch"
diff --git a/gnu/packages/patches/clang-runtime-14-glibc-2.36-compat.patch b/gnu/packages/patches/clang-runtime-14-glibc-2.36-compat.patch
new file mode 100644
index 0000000000..79b36f1383
--- /dev/null
+++ b/gnu/packages/patches/clang-runtime-14-glibc-2.36-compat.patch
@@ -0,0 +1,50 @@
+This commit is from upstream and is included in the llvm-15 release
+
+commit b379129c4beb3f26223288627a1291739f33af02
+Author: Fangrui Song <i@maskray.me>
+Date:   Mon Jul 11 11:38:28 2022 -0700
+
+    [sanitizer] Remove #include <linux/fs.h> to resolve fsconfig_command/mount_attr conflict with glibc 2.36
+    
+    It is generally not a good idea to mix usage of glibc headers and Linux UAPI
+    headers (https://sourceware.org/glibc/wiki/Synchronizing_Headers). In glibc
+    since 7eae6a91e9b1670330c9f15730082c91c0b1d570 (milestone: 2.36), sys/mount.h
+    defines `fsconfig_command` which conflicts with linux/mount.h:
+    
+        .../usr/include/linux/mount.h:95:6: error: redeclaration of ‘enum fsconfig_command’
+    
+    Remove #include <linux/fs.h> which pulls in linux/mount.h. Expand its 4 macros manually.
+    
+    Fix https://github.com/llvm/llvm-project/issues/56421
+    
+    Reviewed By: #sanitizers, vitalybuka, zatrazz
+    
+    Differential Revision: https://reviews.llvm.org/D129471
+
+diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
+index 4bd425435d56..81740bf4ab39 100644
+--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
++++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
+@@ -73,7 +73,6 @@
+ #include <sys/vt.h>
+ #include <linux/cdrom.h>
+ #include <linux/fd.h>
+-#include <linux/fs.h>
+ #include <linux/hdreg.h>
+ #include <linux/input.h>
+ #include <linux/ioctl.h>
+@@ -876,10 +875,10 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
+   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
+   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
+ #endif
+-  unsigned IOCTL_FS_IOC_GETFLAGS = FS_IOC_GETFLAGS;
+-  unsigned IOCTL_FS_IOC_GETVERSION = FS_IOC_GETVERSION;
+-  unsigned IOCTL_FS_IOC_SETFLAGS = FS_IOC_SETFLAGS;
+-  unsigned IOCTL_FS_IOC_SETVERSION = FS_IOC_SETVERSION;
++  unsigned IOCTL_FS_IOC_GETFLAGS = _IOR('f', 1, long);
++  unsigned IOCTL_FS_IOC_GETVERSION = _IOR('v', 1, long);
++  unsigned IOCTL_FS_IOC_SETFLAGS = _IOW('f', 2, long);
++  unsigned IOCTL_FS_IOC_SETVERSION = _IOW('v', 2, long);
+   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
+   unsigned IOCTL_GIO_FONT = GIO_FONT;
+   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;