Added __errno_location() when building under Linux - we might adopt this

as standard, though (and keep errnop() for BeOS compatibility only).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10914 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/libroot/posix/errno.c

@@ -1,6 +1,6 @@
 /* 
-** Copyright 2003, Axel Dörfler, [email protected]. All rights reserved.
+** Copyright 2003-2005, Axel Dörfler, [email protected]. All rights reserved.
-** Distributed under the terms of the OpenBeOS License.
+** Distributed under the terms of the MIT License.
 */
 
 /* Provides user space storage for "errno", located in TLS
@@ -18,3 +18,11 @@ _errnop(void)
 	return (int *)tls_address(TLS_ERRNO_SLOT);
 }
 
+
+// This is part of the Linuxbase binary specification
+// and is referenced by some code in libgcc.a.
+// ToDo: maybe we even want to include this always
+#ifdef __linux__
+extern int *(*__errno_location)(void) __attribute__ ((weak, alias("_errnop")));
+#endif
+