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-rw-r--r--lib/sys_random.in.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sys_random.in.h b/lib/sys_random.in.h
index f14ac1f5723..a82d716de2e 100644
--- a/lib/sys_random.in.h
+++ b/lib/sys_random.in.h
@@ -23,6 +23,10 @@
#if @HAVE_SYS_RANDOM_H@
+/* On uClibc, <sys/random.h> assumes prior inclusion of <stddef.h>. */
+# if defined __UCLIBC__
+# include <stddef.h>
+# endif
/* On Mac OS X 10.5, <sys/random.h> assumes prior inclusion of <sys/types.h>.
On Max OS X 10.13, <sys/random.h> assumes prior inclusion of a file that
includes <Availability.h>, such as <stdlib.h> or <unistd.h>. */