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--- a/crypto/random/seed/GetEntropyRandomSeed.c 2017-03-18 16:58:52.044846562 +0100
+++ b/crypto/random/seed/GetEntropyRandomSeed.c 2017-03-18 16:13:30.859893443 +0100
@@ -21,10 +21,10 @@
#include <errno.h>
#include <sys/syscall.h>
-#define GetEntropyRandomSeed_GLIBC_HAS_IT \
- (defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 25))
-
-#if !defined(__OPENBSD__) && !GetEntropyRandomSeed_GLIBC_HAS_IT
+#if !defined(__OPENBSD__) && \
+ (!defined(__GNU_LIBRARY__) || !defined(__GLIBC__) || \
+ !defined(__GLIBC_MINOR__) || __GLIBC__ < 2 || \
+ (__GLIBC__ == 2 && __GLIBC_MINOR__ < 25))
static int getentropy(void *buf, size_t buflen)
{
int ret;
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