Commit cee0b058fa0b4501b289a2da365182d60314d746 ("add aligned_alloc
required for latest gcc libstdc++") added the prototype of
aligned_alloc() to <stdlib.h>. This prototype contains
'__attribute_alloc_size__ ((2))', but this is not defined anywhere in
uClibc-ng.
This commit addresses that by adding the relevant definition in
<sys/cdefs.h>, borrowed from glibc.
Signed-off-by: Thomas Petazzoni <thomas.petazz...@free-electrons.com>
---
include/sys/cdefs.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index f725ce9..6cd3811 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -222,6 +222,15 @@
# define __attribute_malloc__ /* Ignore */
#endif
+/* Tell the compiler which arguments to an allocation function
+ indicate the size of the allocation. */
+#if __GNUC_PREREQ (4, 3)
+# define __attribute_alloc_size__(params) \
+ __attribute__ ((__alloc_size__ params))
+#else
+# define __attribute_alloc_size__(params) /* Ignore. */
+#endif
+
/* At some point during the gcc 2.96 development the `pure' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */
--
2.7.4
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