Fix for old mingw-w64 (32-bit)

It appears that RtlGenRandom() wasn't supported in 32-bit builds
using mingw-w64 until version 7.0.0 (Fedora 33).  Use the time to
initialise the PRNG in earlier versions.

1 files changed, 3 insertions, 0 deletions

diff --git a/win32/sh_random.c b/win32/sh_random.c
index 32ce135c8..10e942e80 100644
--- a/win32/sh_random.c
+++ b/win32/sh_random.c
@@ -9,7 +9,10 @@
  */
 static void get_entropy(uint32_t state[2])
 {
+#if defined(__MINGW64_VERSION_MAJOR) && \
+                (__MINGW64_VERSION_MAJOR >= 7 || defined(__MINGW64__))
         if (!RtlGenRandom(state, sizeof(state[0])*2))
+#endif
                 GetSystemTimeAsFileTime((FILETIME *)state);
 
 #if 0