intc/openpic: Build openpic only once

[qemu.git] / configure

diff --git a/configure b/configure
index 31b778337e543b51853ed813d11b8ee1b8ead6ed..0e0adde4105adafafcb7e95edb4d0d37afc21277 100755 (executable)
--- a/configure
+++ b/configure
@@ -2486,6 +2486,26 @@ fi
 
 ##########################################
 # fdt probe
+# fdt support is mandatory for at least some target architectures,
+# so insist on it if we're building those system emulators.
+fdt_required=no
+for target in $target_list; do
+  case $target in
+    arm*-softmmu|ppc*-softmmu|microblaze*-softmmu)
+      fdt_required=yes
+    ;;
+  esac
+done
+
+if test "$fdt_required" = "yes"; then
+  if test "$fdt" = "no"; then
+    error_exit "fdt disabled but some requested targets require it." \
+      "You can turn off fdt only if you also disable all the system emulation" \
+      "targets which need it (by specifying a cut down --target-list)."
+  fi
+  fdt=yes
+fi
+
 if test "$fdt" != "no" ; then
   fdt_libs="-lfdt"
   # explicitly check for libfdt_env.h as it is missing in some stable installs
@@ -2509,7 +2529,7 @@ EOF
     fdt_libs="-L\$(BUILD_DIR)/dtc/libfdt $fdt_libs"
   elif test "$fdt" = "yes" ; then
     # have neither and want - prompt for system/submodule install
-    error_exit "ERROR: DTC not present. Your options:" \
+    error_exit "DTC not present. Your options:" \
         "  (1) Preferred: Install the DTC devel package" \
         "  (2) Fetch the DTC submodule, using:" \
         "      git submodule update --init dtc"
@@ -3309,6 +3329,7 @@ __uint128_t b;
 int main (void) {
   a = a + b;
   b = a * b;
+  a = a * a;
   return 0;
 }
 EOF