Fixed assembler detection in configure.ac, and added

detection for x86_64.

diff --git a/configure.ac b/configure.ac
index daa87d0..0a5c5dd 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -298,28 +298,28 @@ AC_ARG_ENABLE(assembler, AC_HELP_STRING([--disable-assembler],
                [], [enable_assembler=yes])
 if test "x$enable_assembler" = xyes; then
        case $host_cpu in
-               i?86)
-                       # Darwin has different ABI than GNU+Linux and Solaris,
-                       # and the x86 assembler code doesn't assemble.
-                       case $host_os in
-                               darwin*)
-                                       enable_assembler=no
-                                       ;;
-                               *)
-                                       enable_assembler=x86
-                                       ;;
-                       esac
-                       ;;
-               *)
-                       enable_assembler=no
-                       ;;
+               i?86)   enable_assembler=x86 ;;
+               x86_64) enable_assembler=x86_64 ;;
+               *)      enable_assembler=no ;;
+       esac
+       # Darwin has different ABI than GNU+Linux and Solaris,
+       # and the assembler code doesn't assemble.
+       case $host_os in
+               darwin*) enable_assembler=no ;;
+               *)       ;;
        esac
 fi
 case $enable_assembler in
-       x86|no)
+       x86)
                AC_DEFINE([HAVE_ASM_X86], 1,
                        [Define to 1 if using x86 assembler optimizations.])
                ;;
+       x86_64)
+               AC_DEFINE([HAVE_ASM_X86_64], 1,
+                       [Define to 1 if using x86_64 assembler optimizations.])
+               ;;
+       no)
+               ;;
        *)
                AC_MSG_RESULT([])
                AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', or \`x86'.])