add external dependencies in a pre-built way to avoid incompatibilities

external/include/sodium/runtime.h

@@ -0,0 +1,52 @@
+
+#ifndef sodium_runtime_H
+#define sodium_runtime_H
+
+#include "export.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_neon(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_sse2(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_sse3(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_ssse3(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_sse41(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_avx(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_avx2(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_avx512f(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_pclmul(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_aesni(void);
+
+SODIUM_EXPORT_WEAK
+int sodium_runtime_has_rdrand(void);
+
+/* ------------------------------------------------------------------------- */
+
+int _sodium_runtime_get_cpu_features(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif