Fix dlopen of secrets driver

* src/Makefile.am: Add gnulib.la for base64 functions
* src/libvirt_private.syms: Export virFileNameMatchesSuffix

src/Makefile.am

@@ -469,7 +469,7 @@ noinst_LTLIBRARIES += libvirt_driver_secret.la
 libvirt_la_LIBADD += libvirt_driver_secret.la
 endif
 if WITH_DRIVER_MODULES
-libvirt_driver_secret_la_LDFLAGS = -module -avoid-version
+libvirt_driver_secret_la_LDFLAGS = -module -avoid-version ../gnulib/lib/libgnu.la
 endif
 libvirt_driver_secret_la_SOURCES = $(SECRET_DRIVER_SOURCES)
 endif

src/libvirt_private.syms

@@ -433,6 +433,8 @@ virGetUserID;
 virGetGroupID;
 virFileFindMountPoint;
 virFileWaitForDevices;
+virFileMatchesNameSuffix;
+
 
 # usb.h
 usbGetDevice;