Дополнения в описание проекта / Some addions in the description of the project

basic-geometry-dev/main.c

@@ -3,6 +3,8 @@
 #include <math.h>
 #include <basic-geometry.h>
 
+#define _POSIX_C_SOURCE >= 199309L
+
 #ifdef _WIN64
 #include <windows.h>
 #else
@@ -130,8 +132,8 @@ int main()
     now = GetTickCount64();
     srand((unsigned int)(now & 0xfffffff));
 #else
-    struct timespec now;
-    clock_gettime(CLOCK_REALTIME, &now);
+    timespec now;
+    clock_gettime(0, &now);
     srand((unsigned int)(now.tv_nsec & 0xfffffff));
 #endif // _WIN64