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-rw-r--r--libc/sysdeps/linux/common/bits/errno.h1
-rw-r--r--libc/sysdeps/linux/common/bits/uClibc_errno.h3
2 files changed, 4 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/errno.h b/libc/sysdeps/linux/common/bits/errno.h
index de9688ac1..0bf6354fb 100644
--- a/libc/sysdeps/linux/common/bits/errno.h
+++ b/libc/sysdeps/linux/common/bits/errno.h
@@ -43,6 +43,7 @@
# ifndef __ASSEMBLER__
/* Function to get address of global `errno' variable. */
extern int *__errno_location (void) __THROW __attribute__ ((__const__));
+libc_hidden_proto(__errno_location)
# ifdef __UCLIBC_HAS_THREADS__
/* When using threads, errno is a per-thread value. */
diff --git a/libc/sysdeps/linux/common/bits/uClibc_errno.h b/libc/sysdeps/linux/common/bits/uClibc_errno.h
index 79eb7e6bd..9c1561841 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_errno.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_errno.h
@@ -33,6 +33,9 @@ extern int *__errno_location (void) __THROW __attribute__ ((__const__))
;
# if defined __UCLIBC_HAS_THREADS__
# include <tls.h>
+# if defined USE___THREAD && USE___THREAD
+libc_hidden_proto(__errno_location)
+# endif
# endif
#endif /* !__ASSEMBLER__ */