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-rw-r--r--include/libc-internal.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/libc-internal.h b/include/libc-internal.h
index 8e79b0c9d..feb27b812 100644
--- a/include/libc-internal.h
+++ b/include/libc-internal.h
@@ -173,6 +173,9 @@ extern ssize_t __write(int __fd, __const void *__buf, size_t __n) attribute_hidd
extern int __close(int __fd) attribute_hidden;
extern __pid_t __getpid (void) attribute_hidden;
+/* #include <stdio.h> */
+extern void __perror (__const char *__s) attribute_hidden;
+
/* #include <stdlib.h> */
extern char *__getenv (__const char *__name) attribute_hidden;