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diff -urN mpeg2dec-0.4.0.orig/libmpeg2/cpu_accel.c mpeg2dec-0.4.0/libmpeg2/cpu_accel.c
--- mpeg2dec-0.4.0.orig/libmpeg2/cpu_accel.c 2003-10-06 04:31:52.000000000 +0200
+++ mpeg2dec-0.4.0/libmpeg2/cpu_accel.c 2005-10-01 11:46:23.000000000 +0200
@@ -37,7 +37,7 @@
int AMD;
uint32_t caps;
-#if !defined(PIC) && !defined(__PIC__)
+#if defined(__x86_64__) || (!defined(PIC) && !defined(__PIC__))
#define cpuid(op,eax,ebx,ecx,edx) \
__asm__ ("cpuid" \
: "=a" (eax), \
@@ -46,7 +46,7 @@
"=d" (edx) \
: "a" (op) \
: "cc")
-#else /* PIC version : save ebx */
+#else /* PIC version : save ebx (not needed on x86_64) */
#define cpuid(op,eax,ebx,ecx,edx) \
__asm__ ("push %%ebx\n\t" \
"cpuid\n\t" \
@@ -60,6 +60,7 @@
: "cc")
#endif
+#ifndef __x86_64__ /* x86_64 supports the cpuid op */
__asm__ ("pushf\n\t"
"pushf\n\t"
"pop %0\n\t"
@@ -77,6 +78,7 @@
if (eax == ebx) /* no cpuid */
return 0;
+#endif
cpuid (0x00000000, eax, ebx, ecx, edx);
if (!eax) /* vendor string only */
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