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

6 files changed, 28 insertions, 28 deletions

diff --git a/libc/sysdeps/linux/x86_64/bits/fenv.h b/libc/sysdeps/linux/x86_64/bits/fenv.h
index 8e38c16ec..f16b64ad3 100644
--- a/libc/sysdeps/linux/x86_64/bits/fenv.h
+++ b/libc/sysdeps/linux/x86_64/bits/fenv.h
@@ -69,18 +69,18 @@ typedef unsigned short int fexcept_t;
 typedef struct
   {
     unsigned short int __control_word;
-    unsigned short int __unused1;
+    unsigned short int __uclibc_unused1;
     unsigned short int __status_word;
-    unsigned short int __unused2;
+    unsigned short int __uclibc_unused2;
     unsigned short int __tags;
-    unsigned short int __unused3;
+    unsigned short int __uclibc_unused3;
     unsigned int __eip;
     unsigned short int __cs_selector;
     unsigned int __opcode:11;
-    unsigned int __unused4:5;
+    unsigned int __uclibc_unused4:5;
     unsigned int __data_offset;
     unsigned short int __data_selector;
-    unsigned short int __unused5;
+    unsigned short int __uclibc_unused5;
 #if __WORDSIZE == 64
     unsigned int __mxcsr;
 #endif
diff --git a/libc/sysdeps/linux/x86_64/bits/kernel_stat.h b/libc/sysdeps/linux/x86_64/bits/kernel_stat.h
index e194a7f76..d01d81d69 100644
--- a/libc/sysdeps/linux/x86_64/bits/kernel_stat.h
+++ b/libc/sysdeps/linux/x86_64/bits/kernel_stat.h
@@ -21,7 +21,7 @@ struct kernel_stat {
 	struct timespec st_atim;
 	struct timespec st_mtim;
 	struct timespec st_ctim;
-	long           __unused[3];
+	long           __uclibc_unused[3];
 };
 
 /* x86-64 stat64 is same as stat */
diff --git a/libc/sysdeps/linux/x86_64/bits/msq.h b/libc/sysdeps/linux/x86_64/bits/msq.h
index 838910713..3141266bc 100644
--- a/libc/sysdeps/linux/x86_64/bits/msq.h
+++ b/libc/sysdeps/linux/x86_64/bits/msq.h
@@ -39,23 +39,23 @@ struct msqid_ds
   struct ipc_perm msg_perm;	/* structure describing operation permission */
   __time_t msg_stime;		/* time of last msgsnd command */
 #if __WORDSIZE == 32
-  unsigned long int __unused1;
+  unsigned long int __uclibc_unused1;
 #endif
   __time_t msg_rtime;		/* time of last msgrcv command */
 #if __WORDSIZE == 32
-  unsigned long int __unused2;
+  unsigned long int __uclibc_unused2;
 #endif
   __time_t msg_ctime;		/* time of last change */
 #if __WORDSIZE == 32
-  unsigned long int __unused3;
+  unsigned long int __uclibc_unused3;
 #endif
   unsigned long int __msg_cbytes; /* current number of bytes on queue */
   msgqnum_t msg_qnum;		/* number of messages currently on queue */
   msglen_t msg_qbytes;		/* max number of bytes allowed on queue */
   __pid_t msg_lspid;		/* pid of last msgsnd() */
   __pid_t msg_lrpid;		/* pid of last msgrcv() */
-  unsigned long int __unused4;
-  unsigned long int __unused5;
+  unsigned long int __uclibc_unused4;
+  unsigned long int __uclibc_unused5;
 };
 
 #ifdef __USE_MISC
diff --git a/libc/sysdeps/linux/x86_64/bits/sem.h b/libc/sysdeps/linux/x86_64/bits/sem.h
index 8c09031c7..9dfab87cb 100644
--- a/libc/sysdeps/linux/x86_64/bits/sem.h
+++ b/libc/sysdeps/linux/x86_64/bits/sem.h
@@ -39,12 +39,12 @@ struct semid_ds
 {
   struct ipc_perm sem_perm;		/* operation permission struct */
   __time_t sem_otime;			/* last semop() time */
-  unsigned long int __unused1;
+  unsigned long int __uclibc_unused1;
   __time_t sem_ctime;			/* last time changed by semctl() */
-  unsigned long int __unused2;
+  unsigned long int __uclibc_unused2;
   unsigned long int sem_nsems;		/* number of semaphores in set */
-  unsigned long int __unused3;
-  unsigned long int __unused4;
+  unsigned long int __uclibc_unused3;
+  unsigned long int __uclibc_unused4;
 };
 
 /* The user should define a union like the following to use it for arguments
diff --git a/libc/sysdeps/linux/x86_64/bits/shm.h b/libc/sysdeps/linux/x86_64/bits/shm.h
index 3a25de562..316895853 100644
--- a/libc/sysdeps/linux/x86_64/bits/shm.h
+++ b/libc/sysdeps/linux/x86_64/bits/shm.h
@@ -52,21 +52,21 @@ struct shmid_ds
     size_t shm_segsz;			/* size of segment in bytes */
     __time_t shm_atime;			/* time of last shmat() */
 #if __WORDSIZE == 32
-    unsigned long int __unused1;
+    unsigned long int __uclibc_unused1;
 #endif
     __time_t shm_dtime;			/* time of last shmdt() */
 #if __WORDSIZE == 32
-    unsigned long int __unused2;
+    unsigned long int __uclibc_unused2;
 #endif
     __time_t shm_ctime;			/* time of last change by shmctl() */
 #if __WORDSIZE == 32
-    unsigned long int __unused3;
+    unsigned long int __uclibc_unused3;
 #endif
     __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
@@ -88,10 +88,10 @@ 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
diff --git a/libc/sysdeps/linux/x86_64/bits/stat.h b/libc/sysdeps/linux/x86_64/bits/stat.h
index e25f01521..a7412c8f9 100644
--- a/libc/sysdeps/linux/x86_64/bits/stat.h
+++ b/libc/sysdeps/linux/x86_64/bits/stat.h
@@ -99,11 +99,11 @@ struct stat
     unsigned long int st_ctimensec;	/* Nsecs of last status change.  */
 #endif
 #if __WORDSIZE == 64
-    long int __unused[3];
+    long int __uclibc_unused[3];
 #else
 # ifndef __USE_FILE_OFFSET64
-    unsigned long int __unused4;
-    unsigned long int __unused5;
+    unsigned long int __uclibc_unused4;
+    unsigned long int __uclibc_unused5;
 # else
     __ino64_t st_ino;			/* File serial number.	*/
 # endif
@@ -160,7 +160,7 @@ struct stat64
     unsigned long int st_ctimensec;	/* Nsecs of last status change.  */
 #endif
 #if __WORDSIZE == 64
-    long int __unused[3];
+    long int __uclibc_unused[3];
 #else
     __ino64_t st_ino;			/* File serial number.		*/
 #endif