Index: openmp/trunk/runtime/src/dllexports
===================================================================
--- openmp/trunk/runtime/src/dllexports
+++ openmp/trunk/runtime/src/dllexports
@@ -403,6 +403,7 @@
     %ifdef OMP_45
         __kmpc_task_reduction_init          268
         __kmpc_task_reduction_get_th_data   269
+        __kmpc_get_target_offload           271
     %endif
 %endif
 
Index: openmp/trunk/runtime/src/kmp.h
===================================================================
--- openmp/trunk/runtime/src/kmp.h
+++ openmp/trunk/runtime/src/kmp.h
@@ -3813,6 +3813,18 @@
 KMP_EXPORT void KMPC_CONVENTION kmpc_set_defaults(char const *);
 KMP_EXPORT void KMPC_CONVENTION kmpc_set_disp_num_buffers(int);
 
+#if OMP_50_ENABLED
+enum kmp_target_offload_kind {
+  tgt_disabled = 0,
+  tgt_default = 1,
+  tgt_mandatory = 2
+};
+typedef enum kmp_target_offload_kind kmp_target_offload_kind_t;
+// Set via OMP_TARGET_OFFLOAD if specified, defaults to tgt_default otherwise
+extern kmp_target_offload_kind_t __kmp_target_offload;
+extern int __kmpc_get_target_offload();
+#endif
+
 #ifdef __cplusplus
 }
 #endif
Index: openmp/trunk/runtime/src/kmp_csupport.cpp
===================================================================
--- openmp/trunk/runtime/src/kmp_csupport.cpp
+++ openmp/trunk/runtime/src/kmp_csupport.cpp
@@ -4065,4 +4065,8 @@
 }
 #endif
 
+#if OMP_50_ENABLED
+int __kmpc_get_target_offload(void) { return __kmp_target_offload; }
+#endif // OMP_50_ENABLED
+
 // end of file //
Index: openmp/trunk/runtime/src/kmp_global.cpp
===================================================================
--- openmp/trunk/runtime/src/kmp_global.cpp
+++ openmp/trunk/runtime/src/kmp_global.cpp
@@ -502,4 +502,7 @@
 int _You_must_link_with_Microsoft_OpenMP_library = 1;
 #endif
 
+#if OMP_50_ENABLED
+kmp_target_offload_kind_t __kmp_target_offload = tgt_default;
+#endif
 // end of file //
Index: openmp/trunk/runtime/src/kmp_settings.cpp
===================================================================
--- openmp/trunk/runtime/src/kmp_settings.cpp
+++ openmp/trunk/runtime/src/kmp_settings.cpp
@@ -1179,6 +1179,46 @@
 } // __kmp_stg_print_default_device
 #endif
 
+#if OMP_50_ENABLED
+// -----------------------------------------------------------------------------
+// OpenMP 5.0: OMP_TARGET_OFFLOAD
+static void __kmp_stg_parse_target_offload(char const *name, char const *value,
+                                           void *data) {
+  const char *next = value;
+  const char *scan = next;
+
+  __kmp_target_offload = tgt_default;
+  SKIP_WS(next);
+  if (*next == '\0')
+    return;
+  scan = next;
+  if (__kmp_match_str("MANDATORY", scan, &next)) {
+    __kmp_target_offload = tgt_mandatory;
+  } else if (__kmp_match_str("DISABLED", scan, &next)) {
+    __kmp_target_offload = tgt_disabled;
+  } else if (__kmp_match_str("DEFAULT", scan, &next)) {
+    __kmp_target_offload = tgt_default;
+  } else {
+    KMP_WARNING(SyntaxErrorUsing, name, "DEFAULT");
+  }
+
+} // __kmp_stg_parse_target_offload
+
+static void __kmp_stg_print_target_offload(kmp_str_buf_t *buffer,
+                                           char const *name, void *data) {
+  const char *value = NULL;
+  if (__kmp_target_offload == tgt_default)
+    value = "DEFAULT";
+  else if (__kmp_target_offload == tgt_mandatory)
+    value = "MANDATORY";
+  else if (__kmp_target_offload == tgt_disabled)
+    value = "DISABLED";
+  if (value) {
+    __kmp_str_buf_print(buffer, "   %s=%s\n", name, value);
+  }
+} // __kmp_stg_print_target_offload
+#endif
+
 #if OMP_45_ENABLED
 // -----------------------------------------------------------------------------
 // OpenMP 4.5: OMP_MAX_TASK_PRIORITY
@@ -4443,6 +4483,10 @@
     {"OMP_DEFAULT_DEVICE", __kmp_stg_parse_default_device,
      __kmp_stg_print_default_device, NULL, 0, 0},
 #endif
+#if OMP_50_ENABLED
+    {"OMP_TARGET_OFFLOAD", __kmp_stg_parse_target_offload,
+     __kmp_stg_print_target_offload, NULL, 0, 0},
+#endif
 #if OMP_45_ENABLED
     {"OMP_MAX_TASK_PRIORITY", __kmp_stg_parse_max_task_priority,
      __kmp_stg_print_max_task_priority, NULL, 0, 0},