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-rw-r--r--include/errno.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/errno.h b/include/errno.h
index 7e1f583a8..fb7c1f561 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -47,6 +47,9 @@ __BEGIN_DECLS
extern int errno;
#endif
+#ifdef _LIBC
+extern const char *__progname, *__progname_full;
+#endif
#if defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__
/* The full and simple forms of the name with which the program was