Minor documentation improvement
diff --git a/src/include/lwip/arch.h b/src/include/lwip/arch.h
index 66adb77..a9c9998 100644
--- a/src/include/lwip/arch.h
+++ b/src/include/lwip/arch.h
@@ -50,6 +50,8 @@
/**
* @defgroup compiler_abstraction Compiler/platform abstraction
* @ingroup sys_layer
+ * All defines related to this section must not be places in lwipopts.h,
+ * but in arch/cc.h!
* @{
*/
@@ -137,7 +139,7 @@
* trailing padding bytes (see LWIP_MEM_ALIGN_BUFFER) or your own section placement
* requirements.
* e.g. if you use gcc and need 32 bit alignment:
- * \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[size] __attribute__((aligned(4)))
+ * \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[size] \_\_attribute\_\_((aligned(4)))
* or more portable:
* \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u32_t variable_name[(size + sizeof(u32_t) - 1) / sizeof(u32_t)]
*/
