Support for Haiku OS

Author: gershnik

lib/inc/sys_string/impl/platform.h

@@ -123,7 +123,7 @@
 
     #endif
 
-#elif defined(__linux__) || defined(__FreeBSD__) || defined(__unix__)
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__unix__) || defined(__HAIKU__)
 
 
     #if !SYS_STRING_USE_PYTHON && !SYS_STRING_USE_GENERIC
@@ -140,4 +140,4 @@
 
 #else
     #error Unsupported platform
-#endif
+#endif