Rename __unused struct members to include a namespace

Rename various spare fields in structs to include a namespace
This should avoid accidental clashes with uses of the __unused symbol
in upstream projects. eg currently it causes a compile error in dhcpcd 8.x
due to their re-use of the __unused symbol as a macro

This follows the style of glibc which does something equivalent

1 files changed, 9 insertions, 9 deletions

diff --git a/libc/sysdeps/linux/csky/bits/shm.h b/libc/sysdeps/linux/csky/bits/shm.h
index dced1321e..d464318ec 100644
--- a/libc/sysdeps/linux/csky/bits/shm.h
+++ b/libc/sysdeps/linux/csky/bits/shm.h
@@ -40,16 +40,16 @@ struct shmid_ds
     struct ipc_perm shm_perm;		/* operation permission struct */
     size_t shm_segsz;			/* size of segment in bytes */
     __time_t shm_atime;			/* time of last shmat() */
-    unsigned long int __unused1;
+    unsigned long int __uclibc_unused1;
     __time_t shm_dtime;			/* time of last shmdt() */
-    unsigned long int __unused2;
+    unsigned long int __uclibc_unused2;
     __time_t shm_ctime;			/* time of last change by shmctl() */
-    unsigned long int __unused3;
+    unsigned long int __uclibc_unused3;
     __pid_t shm_cpid;			/* pid of creator */
     __pid_t shm_lpid;			/* pid of last shmop */
     shmatt_t shm_nattch;		/* number of current attaches */
-    unsigned long int __unused4;
-    unsigned long int __unused5;
+    unsigned long int __uclibc_unused4;
+    unsigned long int __uclibc_unused5;
   };
 
 #ifdef __USE_MISC
@@ -71,10 +71,10 @@ struct	shminfo
     unsigned long int shmmni;
     unsigned long int shmseg;
     unsigned long int shmall;
-    unsigned long int __unused1;
-    unsigned long int __unused2;
-    unsigned long int __unused3;
-    unsigned long int __unused4;
+    unsigned long int __uclibc_unused1;
+    unsigned long int __uclibc_unused2;
+    unsigned long int __uclibc_unused3;
+    unsigned long int __uclibc_unused4;
   };
 
 struct shm_info