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-rw-r--r--support/xunistd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/support/xunistd.h b/support/xunistd.h
index 05c2626a7b..00376f7aae 100644
--- a/support/xunistd.h
+++ b/support/xunistd.h
@@ -39,6 +39,7 @@ void xstat (const char *path, struct stat64 *);
 void xmkdir (const char *path, mode_t);
 void xchroot (const char *path);
 void xunlink (const char *path);
+long xsysconf (int name);
 
 /* Read the link at PATH.  The caller should free the returned string
    with free.  */