Put include guards in the reserved namespace

fortify-headers is considered part of the implementation.

include/poll.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_POLL_H_
-#define FORTIFY_POLL_H_
+#ifndef _FORTIFY_POLL_H
+#define _FORTIFY_POLL_H
 
 #include_next <poll.h>
 

include/stdio.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_STDIO_H_
-#define FORTIFY_STDIO_H_
+#ifndef _FORTIFY_STDIO_H
+#define _FORTIFY_STDIO_H
 
 #include_next <stdio.h>
 

include/stdlib.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_STDLIB_H_
-#define FORTIFY_STDLIB_H_
+#ifndef _FORTIFY_STDLIB_H
+#define _FORTIFY_STDLIB_H
 
 #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #include_next <limits.h>

include/string.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_STRING_H_
-#define FORTIFY_STRING_H_
+#ifndef _FORTIFY_STRING_H
+#define _FORTIFY_STRING_H
 
 #include_next <string.h>
 

include/strings.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_STRINGS_H_
-#define FORTIFY_STRINGS_H_
+#ifndef _FORTIFY_STRINGS_H
+#define _FORTIFY_STRINGS_H
 
 #include_next <strings.h>
 

include/sys/select.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_SYS_SELECT_H_
-#define FORTIFY_SYS_SELECT_H_
+#ifndef _FORTIFY_SYS_SELECT_H
+#define _FORTIFY_SYS_SELECT_H
 
 #include_next <sys/select.h>
 

include/sys/socket.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_SYS_SOCKET_H_
-#define FORTIFY_SYS_SOCKET_H_
+#ifndef _FORTIFY_SYS_SOCKET_H
+#define _FORTIFY_SYS_SOCKET_H
 
 #include_next <sys/socket.h>
 

include/unistd.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_UNISTD_H_
-#define FORTIFY_UNISTD_H_
+#ifndef _FORTIFY_UNISTD_H
+#define _FORTIFY_UNISTD_H
 
 #include_next <unistd.h>
 

include/wchar.h

@@ -1,5 +1,5 @@
-#ifndef FORTIFY_WCHAR_H_
-#define FORTIFY_WCHAR_H_
+#ifndef _FORTIFY_WCHAR_H
+#define _FORTIFY_WCHAR_H
 
 #include_next <stdlib.h>
 #include_next <wchar.h>