[7/7] ccid: configure: improve --enable-smartcard flags

diff --git a/Makefile.objs b/Makefile.objs
index 459bbdb..dc95f23 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -195,7 +195,8 @@  hw-obj-$(CONFIG_FDC) += fdc.o
 hw-obj-$(CONFIG_ACPI) += acpi.o acpi_piix4.o
 hw-obj-$(CONFIG_APM) += pm_smbus.o apm.o
 hw-obj-$(CONFIG_DMA) += dma.o
-hw-obj-$(CONFIG_SMARTCARD) += usb-ccid.o ccid-card-passthru.o ccid-card-emulated.o
+hw-obj-$(CONFIG_SMARTCARD) += usb-ccid.o ccid-card-passthru.o
+hw-obj-$(CONFIG_SMARTCARD_NSS) += ccid-card-emulated.o
 
 # PPC devices
 hw-obj-$(CONFIG_OPENPIC) += openpic.o
diff --git a/Makefile.target b/Makefile.target
index 902e15d..5135bec 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -340,7 +340,7 @@  obj-y += $(addprefix $(HWDIR)/, $(hw-obj-y))
 
 endif # CONFIG_SOFTMMU
 
-obj-y += $(addprefix ../libcacard/, $(libcacard-$(CONFIG_SMARTCARD)))
+obj-y += $(addprefix ../libcacard/, $(libcacard-$(CONFIG_SMARTCARD_NSS)))
 
 obj-y += $(addprefix ../, $(trace-obj-y))
 obj-$(CONFIG_GDBSTUB_XML) += gdbstub-xml.o
diff --git a/configure b/configure
index 9926ed4..4189814 100755
--- a/configure
+++ b/configure
@@ -174,7 +174,8 @@  trace_backend="nop"
 trace_file="trace"
 spice=""
 rbd=""
-smartcard="yes"
+smartcard=""
+smartcard_nss=""
 
 # parse CC options first
 for opt do
@@ -720,6 +721,14 @@  for opt do
   ;;
   --enable-rbd) rbd="yes"
   ;;
+  --disable-smartcard) smartcard="no"
+  ;;
+  --enable-smartcard) smartcard="yes"
+  ;;
+  --disable-smartcard-nss) smartcard_nss="no"
+  ;;
+  --enable-smartcard-nss) smartcard_nss="yes"
+  ;;
   *) echo "ERROR: unknown option $opt"; show_help="yes"
   ;;
   esac
@@ -915,6 +924,10 @@  echo "                           Default:trace-<pid>"
 echo "  --disable-spice          disable spice"
 echo "  --enable-spice           enable spice"
 echo "  --enable-rbd             enable building the rados block device (rbd)"
+echo "  --disable-smartcard      disable smartcard support"
+echo "  --enable-smartcard       enable smartcard support"
+echo "  --disable-smartcard-nss  disable smartcard nss support"
+echo "  --enable-smartcard-nss   enable smartcard nss support"
 echo ""
 echo "NOTE: The object files are built at the place where configure is launched"
 exit 1
@@ -2241,16 +2254,28 @@  EOF
 fi
 
 # check for libcacard for smartcard support
-smartcard_cflags="-I\$(SRC_PATH)/libcacard"
-libcacard_libs=$($pkgconfig --libs nss 2>/dev/null)
-libcacard_cflags=$($pkgconfig --cflags nss)
-# TODO - what's the minimal nss version we support?
-if $pkgconfig --atleast-version=3.12.8 nss; then
+if test "$smartcard" != "no" ; then
     smartcard="yes"
-    QEMU_CFLAGS="$QEMU_CFLAGS $smartcard_cflags $libcacard_cflags"
-    LIBS="$libcacard_libs $LIBS"
-else
-    smartcard="no"
+    smartcard_cflags=""
+    # TODO - what's the minimal nss version we support?
+    if test "$smartcard_nss" != "no"; then
+        if $pkg_config --atleast-version=3.12.8 nss >/dev/null 2>&1 ; then
+            smartcard_nss="yes"
+            smartcard_cflags="-I\$(SRC_PATH)/libcacard"
+            libcacard_libs=$($pkg_config --libs nss 2>/dev/null)
+            libcacard_cflags=$($pkg_config --cflags nss 2>/dev/null)
+            QEMU_CFLAGS="$QEMU_CFLAGS $smartcard_cflags $libcacard_cflags"
+            LIBS="$libcacard_libs $LIBS"
+        else
+            if test "$smartcard_nss" == "yes"; then
+                feature_not_found "nss"
+            fi
+            smartcard_nss="no"
+        fi
+    fi
+fi
+if test "$smartcard" == "no" ; then
+    smartcard_nss="no"
 fi
 
 ##########################################
@@ -2486,7 +2511,7 @@  echo "Trace output file $trace_file-<pid>"
 echo "spice support     $spice"
 echo "rbd support       $rbd"
 echo "xfsctl support    $xfs"
-echo "smartcard support $smartcard"
+echo "nss used          $smartcard_nss"
 
 if test $sdl_too_old = "yes"; then
 echo "-> Your SDL version is too old - please upgrade to have SDL support"
@@ -2763,6 +2788,10 @@  if test "$smartcard" = "yes" ; then
   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
 fi
 
+if test "$smartcard_nss" = "yes" ; then
+  echo "CONFIG_SMARTCARD_NSS=y" >> $config_host_mak
+fi
+
 # XXX: suppress that
 if [ "$bsd" = "yes" ] ; then
   echo "CONFIG_BSD=y" >> $config_host_mak
@@ -3088,7 +3117,7 @@  fi
 if test "$target_darwin_user" = "yes" ; then
   echo "CONFIG_DARWIN_USER=y" >> $config_target_mak
 fi
-if test "$smartcard" = "yes" ; then
+if test "$smartcard_nss" = "yes" ; then
   echo "subdir-$target: subdir-libcacard" >> $config_host_mak
   echo "libcacard_libs=$libcacard_libs" >> $config_host_mak
   echo "libcacard_cflags=$libcacard_cflags" >> $config_host_mak
@@ -3306,7 +3335,7 @@  for hwlib in 32 64; do
   echo "QEMU_CFLAGS+=-DTARGET_PHYS_ADDR_BITS=$hwlib" > $d/config.mak
 done
 
-if [ $source_path != $workdir ]; then
+if [ $source_path != `pwd` ]; then
     # out of tree build
     mkdir -p libcacard
     rm -f libcacard/Makefile