[PATCH 07/10] 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.

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 741ff99f4f..741c33c7ad 100755
--- a/configure
+++ b/configure
@@ -646,6 +646,7 @@ case "$cpu" in
     cpu="i386"
     CPU_CFLAGS="-m32" ;;
   x32)
+    cpu="x86_64"
     CPU_CFLAGS="-mx32" ;;
   x86_64|amd64)
     cpu="x86_64"
@@ -3735,7 +3736,7 @@ fi
 if test "$linux" = "yes" ; then
   mkdir -p linux-headers
   case "$cpu" in
-  i386|x86_64|x32)
+  i386|x86_64)
     linux_arch=x86
     ;;
   ppc|ppc64)
@@ -3917,9 +3918,6 @@ if test "$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 96de1a6ef9..903d4f3b10 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'
@@ -1801,7 +1801,6 @@ 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