Export conditional state driver symbols only when they are defined

This is necessary for MinGW builds.

src/Makefile.am

@@ -813,13 +813,18 @@ if WITH_MACVTAP
 USED_SYM_FILES += libvirt_macvtap.syms
 endif
 
+if WITH_LIBVIRTD
+USED_SYM_FILES += libvirt_daemon.syms
+endif
+
 EXTRA_DIST += \
   libvirt_public.syms		\
   libvirt_private.syms		\
   libvirt_driver_modules.syms	\
   libvirt_bridge.syms		\
   libvirt_linux.syms		\
-  libvirt_macvtap.syms
+  libvirt_macvtap.syms		\
+  libvirt_daemon.syms
 
 BUILT_SOURCES = libvirt.syms
 

src/libvirt_daemon.syms

+#
+# These symbols are dependent upon --with-libvirtd via WITH_LIBVIRTD.
+#
+
+# libvirt_internal.h
+virStateInitialize;
+virStateCleanup;
+virStateReload;
+virStateActive;
+virRegisterStateDriver;

src/libvirt_private.syms

@@ -285,10 +285,6 @@ iptablesRemoveUdpInput;
 
 
 # libvirt_internal.h
-virStateInitialize;
-virStateCleanup;
-virStateReload;
-virStateActive;
 virDrvSupportsFeature;
 virDomainMigratePrepare;
 virDomainMigratePerform;
@@ -299,7 +295,6 @@ virDomainMigratePrepareTunnel;
 virRegisterDriver;
 virRegisterInterfaceDriver;
 virRegisterNetworkDriver;
-virRegisterStateDriver;
 virRegisterStorageDriver;
 virRegisterDeviceMonitor;
 virRegisterSecretDriver;