Ensure cpuid macro is only defined on AMD64

Signed-off-by: sigsegv7 <ian@vegaa.systems>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
index a42d05b..7a05ca6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -42,10 +42,12 @@
 #error "Big endian machines not supported yet"
 #endif
 
+#if defined(__x86_64__)
 #define cpuid(level, a, b, c, d)					\
   __asm__ __volatile__ ("cpuid\n\t"					\
 			: "=a" (a), "=b" (b), "=c" (c), "=d" (d)	\
 			: "0" (level))
+#endif
 
 #define flip_block(TMP_VAR, TYPE, BUF, POS)         \
         TMP_VAR = *(TYPE *)&BUF[POS];               \