ax_cpu_vendor

Find your CPU's vendor by requesting cpuid and define "ax_cpu_vendor" accordingly. This macro depends on AX_GCC_X86_CPUID.

AC_DEFUN([AX_CPU_VENDOR],
[
 AC_REQUIRE([AX_GCC_X86_CPUID])
 AX_GCC_X86_CPUID(0x0)

 AC_CACHE_CHECK(for the processor vendor, ax_cpu_vendor,
 [
   vendor=`echo $ax_cv_gcc_x86_cpuid_0x0 | cut -d ":" -f 2`

   case $vendor in
     756e6547*)
       ax_cpu_vendor="Intel"
       ;;
     68747541*)
       ax_cpu_vendor="AMD"
       ;;
     69727943*)
       ax_cpu_vendor="Cyrix"
       ;;
     746e6543*)
       ax_cpu_vendor="IDT"
       ;;
     646f6547*)
       ax_cpu_vendor="Natsemi Geode"
       ;;
     52697365*)
       ax_cpu_vendor="Rise"
       ;;
     65736952*)
       ax_cpu_vendor="Rise"
       ;;
     20536953*)
       ax_cpu_vendor="SiS"
       ;;
     *)
       ax_cpu_vendor="Unknown"
       ;;
   esac
 ])
])

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