diff --git a/crypto/armcap.c b/crypto/armcap.c
index 74c2c5729595008a464c8ae6e4a3a92c393d6b8c..8dbd7410878a8c36f019475dc807a8165cd8d29f 100644
--- a/crypto/armcap.c
+++ b/crypto/armcap.c
@@ -29,6 +29,9 @@ unsigned int OPENSSL_rdtsc(void)
 		return 0;
 	}
 
+#if defined(__GNUC__) && __GNUC__>=2
+void OPENSSL_cpuid_setup(void) __attribute__((constructor))
+#endif
 void OPENSSL_cpuid_setup(void)
 	{
 	char *e;