For Clang -fsanitize=vptr use -fvisibility-ms-compat, not -fvisibility=hidden

...same as f0aa1a78fb

Change-Id: I89e20a57125012a6805b8d61ec668068b7149be2

external/libwps/UnpackedTarball_libwps.mk

@@ -18,4 +18,12 @@ $(eval $(call gb_UnpackedTarball_add_patches,libwps,\
 	external/libwps/0001-error-C2065-M_PI-undeclared-identifier.patch \
 ))
 
+ifeq ($(COM_GCC_IS_CLANG),TRUE)
+ifneq ($(filter -fsanitize=%,$(CC)),)
+$(eval $(call gb_UnpackedTarball_add_patches,libwps, \
+    external/libwps/ubsan-visibility.patch.0 \
+))
+endif
+endif
+
 # vim: set noet sw=4 ts=4:

external/libwps/ubsan-visibility.patch.0

@@ -0,0 +1,11 @@
+--- configure
++++ configure
+@@ -16632,7 +16632,7 @@
+         { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fvisibility=hidden compiler flag" >&5
+ $as_echo_n "checking for -fvisibility=hidden compiler flag... " >&6; }
+         saved_CXXFLAGS="$CXXFLAGS"
+-        CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
++        CXXFLAGS="$CXXFLAGS -fvisibility-ms-compat"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+