From c9c7eecd8ea799d22223e38a6e5b16de78595067 Mon Sep 17 00:00:00 2001
From: Michael Lotz <mmlr@mlotz.ch>
Date: Fri, 23 Jan 2009 01:24:47 +0000
Subject: [PATCH] Comment out problematic inline asm statement for GCC 4. The
 direct reference to sAPMBiosEntry generates undefined symbols and I'm not in
 a condition to fix this right now. Added a TODO.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28986 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/kernel/arch/x86/apm.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/system/kernel/arch/x86/apm.cpp b/src/system/kernel/arch/x86/apm.cpp
index 7daa618c27..71c13b7dbe 100644
--- a/src/system/kernel/arch/x86/apm.cpp
+++ b/src/system/kernel/arch/x86/apm.cpp
@@ -91,6 +91,9 @@ apm_error(uint32 error)
 static status_t
 call_apm_bios(bios_regs *regs)
 {
+#if _GNUC_ >= 4
+	// TODO: Fix this for GCC 4.3! The direct reference to sAPMBiosEntry
+	// in the ASM below causes undefined references.
 	asm volatile(
 		"pushfl; "
 		"pushl %%ebp; "
@@ -104,6 +107,7 @@ call_apm_bios(bios_regs *regs)
 		  "=S" (regs->esi), "=m" (regs->flags)
 		: "a" (regs->eax), "b" (regs->ebx), "c" (regs->ecx)
 		: "memory", "edi", "cc");
+#endif
 
 	if (regs->flags & CARRY_FLAG)
 		return B_ERROR;