Fixed __ATTR_PROGMEM__ by utilizing the variant available in clang (l…

…lvm/llvm-project#55921 (comment)).
avrdudes · Jul 26, 2022 · b920e31 · b920e31
1 parent 55e8cac
commit b920e31
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/include/avr/pgmspace.h b/include/avr/pgmspace.h
@@ -95,8 +95,16 @@
 #endif
 
 #ifndef __ATTR_PROGMEM__
+#if __has_attribute(__progmem__)
 #define __ATTR_PROGMEM__ __attribute__((__progmem__))
 #endif
+#endif
+
+#ifndef __ATTR_PROGMEM__
+#ifdef __clang_version__
+#define __ATTR_PROGMEM__ __flash  // not really an attr
+#endif
+#endif
 
 #ifndef __ATTR_PURE__
 #define __ATTR_PURE__ __attribute__((__pure__))