From 30df38f926d20e69a4724afdd73157669616f32b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20M=C3=BCller?= <robytemueller@gmail.com>
Date: Thu, 7 Dec 2023 20:36:30 +0100
Subject: [PATCH] Add compile time errors for unsupported endianness

We support little and big endian but not PDP endian (Middle-endian).

Define endianness as string `CONF_ARCH_ENDIAN_STRING` to avoid conditional compilation when printing endianness.
---
 src/base/detect.h            | 8 ++++++++
 src/engine/shared/engine.cpp | 9 +--------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/src/base/detect.h b/src/base/detect.h
index 90eeeae78..8bceed086 100644
--- a/src/base/detect.h
+++ b/src/base/detect.h
@@ -195,4 +195,12 @@
 #define CONF_ARCH_STRING "unknown"
 #endif
 
+#if defined(CONF_ARCH_ENDIAN_LITTLE)
+#define CONF_ARCH_ENDIAN_STRING "little endian"
+#elif defined(CONF_ARCH_ENDIAN_BIG)
+#define CONF_ARCH_ENDIAN_STRING "big endian"
+#else
+#error "Unsupported endianness"
+#endif
+
 #endif
diff --git a/src/engine/shared/engine.cpp b/src/engine/shared/engine.cpp
index 259c28523..7ab141ebb 100644
--- a/src/engine/shared/engine.cpp
+++ b/src/engine/shared/engine.cpp
@@ -49,15 +49,8 @@ public:
 		str_copy(m_aAppName, pAppname);
 		if(!Test)
 		{
-			//
 			dbg_msg("engine", "running on %s-%s-%s", CONF_FAMILY_STRING, CONF_PLATFORM_STRING, CONF_ARCH_STRING);
-#ifdef CONF_ARCH_ENDIAN_LITTLE
-			dbg_msg("engine", "arch is little endian");
-#elif defined(CONF_ARCH_ENDIAN_BIG)
-			dbg_msg("engine", "arch is big endian");
-#else
-			dbg_msg("engine", "unknown endian");
-#endif
+			dbg_msg("engine", "arch is %s", CONF_ARCH_ENDIAN_STRING);
 
 			char aVersionStr[128];
 			if(os_version_str(aVersionStr, sizeof(aVersionStr)))