configure: Don't implicitly hardcode list of KVM architectures

The code creating the symlink from linux-headers/asm to the
architecture specific linux-headers/asm-$arch directory was
implicitly hardcoding a list of KVM supporting architectures.
Add a default case for the common "Linux architecture name and
QEMU CPU name match" case, so future architectures will only
need to add code if they've managed to get mismatched names.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/configure b/configure
index 280726c3f8b31815ec80464679a270aa401685be..b9a0b2741ebca5a1f78235bfe18fc59d3ae752f2 100755 (executable)
--- a/configure
+++ b/configure
@@ -3538,15 +3538,23 @@ if test "$linux" = "yes" ; then
   mkdir -p linux-headers
   case "$cpu" in
   i386|x86_64)
-    symlink "$source_path/linux-headers/asm-x86" linux-headers/asm
+    linux_arch=x86
     ;;
   ppcemb|ppc|ppc64)
-    symlink "$source_path/linux-headers/asm-powerpc" linux-headers/asm
+    linux_arch=powerpc
     ;;
   s390x)
-    symlink "$source_path/linux-headers/asm-s390" linux-headers/asm
+    linux_arch=s390
+    ;;
+  *)
+    # For most CPUs the kernel architecture name and QEMU CPU name match.
+    linux_arch="$cpu"
     ;;
   esac
+    # For non-KVM architectures we will not have asm headers
+    if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
+      symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
+    fi
 fi
 
 for target in $target_list; do