[PULL 05/16] configure: unify x86_64 and x32

[Paolo Bonzini <pbonzini@redhat.com>]

The only difference between the two, as far as either configure or
Meson are concerned, is in the multilib flags passed to the compiler.

For QEMU, this fixes the handling of TYPE_OLDDEVT in
include/exec/user/thunk.h and enables testing of dirty ring buffer,
because both are using HOST_X86_64.

For tests/tcg, this means that on a hypothetical x32 host the
cross compiler will not be used to build the tests.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure   | 6 ++----
 meson.build | 3 +--
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/configure b/configure
index 85caf2e9ef..108b7621e2 100755
--- a/configure
+++ b/configure
@@ -647,6 +647,7 @@ case "$cpu" in
     cpu="i386"
     CPU_CFLAGS="-m32" ;;
   x32)
+    cpu="x86_64"
     CPU_CFLAGS="-mx32" ;;
   x86_64|amd64)
     cpu="x86_64"
@@ -3719,7 +3720,7 @@ fi
 if test "$linux" = "yes" ; then
   mkdir -p linux-headers
   case "$cpu" in
-  i386|x86_64|x32)
+  i386|x86_64)
     linux_arch=x86
     ;;
   ppc|ppc64)
@@ -3901,9 +3902,6 @@ if test "$skip_meson" = no; then
         i386)
             echo "cpu_family = 'x86'" >> $cross
             ;;
-        x86_64|x32)
-            echo "cpu_family = 'x86_64'" >> $cross
-            ;;
         *)
             echo "cpu_family = '$ARCH'" >> $cross
             ;;
diff --git a/meson.build b/meson.build
index ae67ca28ab..69cca2aa9f 100644
--- a/meson.build
+++ b/meson.build
@@ -355,7 +355,7 @@ if not get_option('tcg').disabled()
     tcg_arch = 'tci'
   elif config_host['ARCH'] == 'sparc64'
     tcg_arch = 'sparc'
-  elif config_host['ARCH'] in ['x86_64', 'x32']
+  elif config_host['ARCH'] == 'x86_64'
     tcg_arch = 'i386'
   elif config_host['ARCH'] == 'ppc64'
     tcg_arch = 'ppc'
@@ -1806,7 +1806,6 @@ disassemblers = {
   'hppa' : ['CONFIG_HPPA_DIS'],
   'i386' : ['CONFIG_I386_DIS'],
   'x86_64' : ['CONFIG_I386_DIS'],
-  'x32' : ['CONFIG_I386_DIS'],
   'm68k' : ['CONFIG_M68K_DIS'],
   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
   'mips' : ['CONFIG_MIPS_DIS'],
-- 
2.33.1