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-rw-r--r--inet/herrno.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/inet/herrno.c b/inet/herrno.c
index 406e91ec4b..f0ee81b804 100644
--- a/inet/herrno.c
+++ b/inet/herrno.c
@@ -25,7 +25,7 @@
/* We need to have the error status variable of the resolver
accessible in the libc. */
-#if USE_TLS && HAVE___THREAD
+#if USE___THREAD
__thread int h_errno;
extern __thread int __libc_h_errno __attribute__ ((alias ("h_errno")))
attribute_hidden;
@@ -33,6 +33,17 @@ extern __thread int __libc_h_errno __attribute__ ((alias ("h_errno")))
#else
int h_errno = 0;
weak_alias (h_errno, _h_errno)
+
+/* This alias is needed by libpthread. */
+strong_alias (h_errno, __libc_h_errno)
+
+/* We declare these with compat_symbol so that they are not
+ visible at link time. Programs must use the accessor functions. */
+# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
+# include <shlib-compat.h>
+compat_symbol (libc, h_errno, h_errno, GLIBC_2_0);
+compat_symbol (libc, _h_errno, _h_errno, GLIBC_2_0);
+# endif
#endif
/* When threaded, h_errno may be a per-thread variable. */