From 85afbd3d5a11b48a2d0fa77bcefab20c2f9f5292 Mon Sep 17 00:00:00 2001
From: Daniel Kolesa <daniel@octaforge.org>
Date: Tue, 1 Nov 2022 01:03:48 +0100
Subject: [PATCH] avoid __extension__ with clang

It seems useless and triggers 'error: expected external declaration'
---
 include/poll.h       | 2 +-
 include/stdio.h      | 2 +-
 include/stdlib.h     | 4 ++--
 include/string.h     | 2 +-
 include/sys/select.h | 2 +-
 include/sys/socket.h | 2 +-
 include/unistd.h     | 2 +-
 include/wchar.h      | 8 ++++----
 8 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/poll.h b/include/poll.h
index 60a7623..b8d5c0b 100644
--- a/include/poll.h
+++ b/include/poll.h
@@ -17,7 +17,7 @@
 #ifndef _FORTIFY_POLL_H
 #define _FORTIFY_POLL_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <poll.h>
diff --git a/include/stdio.h b/include/stdio.h
index e50f65f..a5aaa8f 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -17,7 +17,7 @@
 #ifndef _FORTIFY_STDIO_H
 #define _FORTIFY_STDIO_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <stdio.h>
diff --git a/include/stdlib.h b/include/stdlib.h
index 2b854d0..c43a835 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -17,14 +17,14 @@
 #ifndef _FORTIFY_STDLIB_H
 #define _FORTIFY_STDLIB_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <stdlib.h>
 
 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
 #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <limits.h>
diff --git a/include/string.h b/include/string.h
index 9d4658c..834d262 100644
--- a/include/string.h
+++ b/include/string.h
@@ -17,7 +17,7 @@
 #ifndef _FORTIFY_STRING_H
 #define _FORTIFY_STRING_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <string.h>
diff --git a/include/sys/select.h b/include/sys/select.h
index 527d8e4..75c4829 100644
--- a/include/sys/select.h
+++ b/include/sys/select.h
@@ -17,7 +17,7 @@
 #ifndef _FORTIFY_SYS_SELECT_H
 #define _FORTIFY_SYS_SELECT_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <sys/select.h>
diff --git a/include/sys/socket.h b/include/sys/socket.h
index 02cad5f..5a1821c 100644
--- a/include/sys/socket.h
+++ b/include/sys/socket.h
@@ -17,7 +17,7 @@
 #ifndef _FORTIFY_SYS_SOCKET_H
 #define _FORTIFY_SYS_SOCKET_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <sys/socket.h>
diff --git a/include/unistd.h b/include/unistd.h
index 9f8a187..d36dfc4 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -17,7 +17,7 @@
 #ifndef _FORTIFY_UNISTD_H
 #define _FORTIFY_UNISTD_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <unistd.h>
diff --git a/include/wchar.h b/include/wchar.h
index 41423a8..e359452 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -17,19 +17,19 @@
 #ifndef _FORTIFY_WCHAR_H
 #define _FORTIFY_WCHAR_H
 
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <limits.h>
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <stdlib.h>
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <string.h>
-#ifndef __cplusplus
+#if !defined(__cplusplus) && !defined(__clang__)
 __extension__
 #endif
 #include_next <wchar.h>