From aceb53ffab14d5333c7c2ac56d0a58473b2636e7 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 25 Aug 2005 23:07:24 +0000 Subject: add a note explaining the weird h_errno definition --- include/netdb.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/netdb.h b/include/netdb.h index 3023ba04f..9ed963d87 100644 --- a/include/netdb.h +++ b/include/netdb.h @@ -54,7 +54,9 @@ __BEGIN_DECLS /* Error status for non-reentrant lookup functions. - We use a macro to access always the thread-specific `h_errno' variable. */ + We use a macro to access always the thread-specific `h_errno' variable. + We always need the extern int here in case internal libc code undefines + the macro because it needs access to the underlying storage. */ extern int h_errno; #if defined(__UCLIBC_HAS_THREADS__) # define h_errno (*__h_errno_location ()) -- cgit v1.2.3