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$NetBSD: patch-.._seabios-rel-1.14.0_src_string.c,v 1.1 2021/04/18 12:31:26 bouyer Exp $
when the code is compiled -fwhole-program, memcpy() will be ommitted by gcc
because nothing in the file references it. Later the link fails with
undefined references to memcpy().
Force the inclusion with (externally_visible) attribute
--- ../seabios-rel-1.14.0/src/string.c.orig 2021-04-17 22:32:25.409876075 +0200
+++ ../seabios-rel-1.14.0/src/string.c 2021-04-17 22:32:39.873615679 +0200
@@ -149,7 +149,7 @@
memcpy(d_fl, s_fl, len);
}
-void *
+__attribute__((externally_visible)) void *
#undef memcpy
memcpy(void *d1, const void *s1, size_t len)
#if MODESEGMENT == 0
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