From 44e06b963f3a052913b24f014640e093fdc09991 Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Fri, 21 Nov 2014 01:46:10 +0100
Subject: added __linux__ check

---
 README.md       |  1 +
 kernel/kernel.c | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 6fedeea..8b323f9 100644
--- a/README.md
+++ b/README.md
@@ -80,6 +80,7 @@ Some might be disabled temporarily due to conflicts or regressions.
 Todos
 -----
 
+* allow GRUB as bootloader (multiboot spec)
 * set up os-specific toolchain!
 * use linker script!
 * more syscalls
diff --git a/kernel/kernel.c b/kernel/kernel.c
index fe9ffa9..128f5dd 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -1,3 +1,13 @@
+/*
+ * in freestanding mode we can just use this c lib headers
+ * stdbool,sddef,stdint, 
+ * float,iso646,limits,stdarg
+ */
+
+#ifdef __linux__
+#error "watchout! this is not linux but FoolOS. Use a cross-compiler"
+#endif
+
 #define FOOLOS_MODULE_NAME "kernel"
 #include "config.h"
 #include "asm/asm.h"
-- 
cgit v1.2.3