pixman: pass extra cflags and ldflags

Store --extra-cflags and --extra-ldflags in config-host.mak,
then pass them on to the pixman configure script.

Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/configure b/configure
index ea42fe2..a750bb5 100755
--- a/configure
+++ b/configure
@@ -240,8 +240,10 @@
   --cpu=*) cpu="$optarg"
   ;;
   --extra-cflags=*) QEMU_CFLAGS="$optarg $QEMU_CFLAGS"
+                    EXTRA_CFLAGS="$optarg"
   ;;
   --extra-ldflags=*) LDFLAGS="$optarg $LDFLAGS"
+                     EXTRA_LDFLAGS="$optarg"
   ;;
   --enable-debug-info) debug_info="yes"
   ;;
@@ -3349,6 +3351,8 @@
 echo "qemu_docdir=$qemu_docdir" >> $config_host_mak
 echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
+echo "extra_cflags=$EXTRA_CFLAGS" >> $config_host_mak
+echo "extra_ldflags=$EXTRA_LDFLAGS" >> $config_host_mak
 
 echo "ARCH=$ARCH" >> $config_host_mak
 if test "$debug_tcg" = "yes" ; then