include/c.h: fix inverted #ifdef for sys/auxv.h

The #ifndef was inverted, causing sys/auxv.h to be included when it
is NOT available. Fix to #ifdef.

Addresses: https://github.com/util-linux/util-linux/issues/4144

diff --git a/include/c.h b/include/c.h
index e74a4486bf97d722ed85c3af05d616e892c11083..991048dbd17bc1f7d6c3879d5a609fc4cfba0249 100644 (file)
--- a/include/c.h
+++ b/include/c.h
@@ -38,7 +38,7 @@
 # define NAME_MAX PATH_MAX
 #endif
 
-#ifndef HAVE_SYS_AUXV_H
+#ifdef HAVE_SYS_AUXV_H
 # include <sys/auxv.h>
 #endif