From bb1f225bc8db6fe565f7e39714ef3565cf1b6e0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Thu, 28 May 2026 15:53:48 +0200
Subject: [PATCH] libc: backport glibc header fix to avoid __unused

https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=243bdfec8f7cd4a85a8ce6e4e9a5a5accd3ce1aa;hp=ad9784419e274cef9ba7152d7cd2490d291f837b
---
 lib/libc/include/powerpc-linux-gnu/bits/struct_mutex.h | 4 ++--
 lib/libc/include/s390x-linux-gnu/bits/fenv.h           | 4 ++--
 lib/libc/include/s390x-linux-gnu/bits/struct_mutex.h   | 4 ++--
 lib/libc/include/x86-linux-gnu/bits/struct_mutex.h     | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/lib/libc/include/powerpc-linux-gnu/bits/struct_mutex.h b/lib/libc/include/powerpc-linux-gnu/bits/struct_mutex.h
index 00a85da7667b8540cc89ad17d4c4f51648687920..ebf2d50922ee0114298519286785f965771985d9 100644
--- a/lib/libc/include/powerpc-linux-gnu/bits/struct_mutex.h
+++ b/lib/libc/include/powerpc-linux-gnu/bits/struct_mutex.h
@@ -32,7 +32,7 @@ struct __pthread_mutex_s
   int __kind;
 #if __WORDSIZE == 64
   short __spins;
-  short __unused;
+  short __glibc_reserved;
   __pthread_list_t __list;
 # define __PTHREAD_MUTEX_HAVE_PREV      1
 #else
@@ -59,4 +59,4 @@ struct __pthread_mutex_s
   0, 0, 0, __kind, 0, { { 0, 0 } }
 #endif
 
-#endif
\ No newline at end of file
+#endif
diff --git a/lib/libc/include/s390x-linux-gnu/bits/fenv.h b/lib/libc/include/s390x-linux-gnu/bits/fenv.h
index eafcaa425b6835d5dd985020e748f3aa64e0c4a5..6fb9372043231b6e4303457c2b102b56fc39e728 100644
--- a/lib/libc/include/s390x-linux-gnu/bits/fenv.h
+++ b/lib/libc/include/s390x-linux-gnu/bits/fenv.h
@@ -76,7 +76,7 @@ typedef unsigned int fexcept_t; /* size of fpc */
 typedef struct
 {
   fexcept_t __fpc;
-  void *__unused;
+  void *__glibc_reserved;
   /* The field __unused (formerly __ieee_instruction_pointer) is a relict from
      commit "Remove PTRACE_PEEKUSER" (87b9b50f0d4b92248905e95a06a13c513dc45e59)
      and isn't used anymore.  */
@@ -96,4 +96,4 @@ typedef unsigned int femode_t;
 
 /* Default floating-point control modes.  */
 # define FE_DFL_MODE	((const femode_t *) -1L)
-#endif
\ No newline at end of file
+#endif
diff --git a/lib/libc/include/s390x-linux-gnu/bits/struct_mutex.h b/lib/libc/include/s390x-linux-gnu/bits/struct_mutex.h
index 7fc73321151dba01025bdf6f61e525f4a82d8e70..571265267c2edbc388e00aed800c03b3d2c05b2d 100644
--- a/lib/libc/include/s390x-linux-gnu/bits/struct_mutex.h
+++ b/lib/libc/include/s390x-linux-gnu/bits/struct_mutex.h
@@ -32,7 +32,7 @@ struct __pthread_mutex_s
   int __kind;
 #if __WORDSIZE == 64
   short __spins;
-  short __unused;
+  short __glibc_reserved;
   __pthread_list_t __list;
 # define __PTHREAD_MUTEX_HAVE_PREV      1
 #else
@@ -59,4 +59,4 @@ struct __pthread_mutex_s
   0, 0, 0, __kind, 0, { { 0, 0 } }
 #endif
 
-#endif
\ No newline at end of file
+#endif
diff --git a/lib/libc/include/x86-linux-gnu/bits/struct_mutex.h b/lib/libc/include/x86-linux-gnu/bits/struct_mutex.h
index aecbadb5fdbdc2ece477ae5d6c09e96dd5f39f52..13c9894ad4b3156677a2475ede4c0bc47d1df68a 100644
--- a/lib/libc/include/x86-linux-gnu/bits/struct_mutex.h
+++ b/lib/libc/include/x86-linux-gnu/bits/struct_mutex.h
@@ -32,7 +32,7 @@ struct __pthread_mutex_s
   int __kind;
 #ifdef __x86_64__
   short __spins;
-  short __unused;
+  short __glibc_reserved;
   __pthread_list_t __list;
 # define __PTHREAD_MUTEX_HAVE_PREV      1
 #else
@@ -59,4 +59,4 @@ struct __pthread_mutex_s
   0, 0, 0, __kind, 0, { { 0, 0 } }
 #endif
 
-#endif
\ No newline at end of file
+#endif
-- 
2.54.0