Add a bunch of common symbols to allow tests to run. Those that added in
safe_symbols initially should probably go upstream, _Jv_RegisterClasses is
a strange one (weak symbol everywhere in the whole system) and others are
coming from libgcc.a.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=9892

Index: buildtools/wafsamba/symbols.py
--- buildtools/wafsamba/symbols.py.orig
+++ buildtools/wafsamba/symbols.py
@@ -572,7 +572,14 @@ def symbols_whyneeded(task):
 
 def report_duplicate(bld, binname, sym, libs, fail_on_error):
     '''report duplicated symbols'''
-    if sym in ['_init', '_fini', '_edata', '_end', '__bss_start']:
+
+    safe_symbols = ['_init', '_fini', '_edata', '_end', '__bss_start', '__cxa_finalize', '__got_start', '__got_end', '__data_start', '__data_end']
+
+    if sys.platform.startswith("openbsd"):
+        safe_symbols.extend('__udiv_w_sdiv __fixxfdi __fixunsxfdi __divdi3 __udivmoddi4 __floatundidf __floatundixf __floatdixf __divdc3 __umoddi3 __fixdfdi __fixunsdfdi __divxc3 __negdi2 __popcountdi2 __divsc3 __muldi3 __udivdi3 __mulvsi3 __clear_cache __powisf2 __mulvdi3 __powixf2 __gcc_personality_v0 _Unwind_Backtrace _Unwind_DeleteException _Unwind_FindEnclosingFunction _Unwind_ForcedUnwind _Unwind_GetCFA _Unwind_GetDataRelBase _Unwind_GetGR _Unwind_GetIP _Unwind_GetIPInfo _Unwind_GetLanguageSpecificData _Unwind_GetRegionStart _Unwind_GetTextRelBase _Unwind_RaiseException _Unwind_Resume _Unwind_Resume_or_Rethrow _Unwind_SetGR _Unwind_SetIP __frame_state_for _Unwind_Find_FDE __deregister_frame __deregister_frame_info __deregister_frame_info_bases __register_frame __register_frame_info __register_frame_info_bases __register_frame_info_table __register_frame_info_table_bases __register_frame_table __absvdi2 __mulxc3 __floatundisf __ashrdi3 __fixsfdi __fixunssfdi __fixunsdfsi __paritydi2 __paritysi2 __ucmpdi2 __muldc3 __fixunsxfsi __negvdi2 __floatdisf __ffsdi2 __negvsi2 __ffssi2 __moddi3 __ashldi3 __floatdidf __ctzdi2 __gnat_default_lock __gnat_default_unlock __gnat_install_locks __gthread_active_p __gthread_mutex_lock __gthread_mutex_unlock __absvsi2 __popcountsi2 __ctzsi2 __addvsi3 __fixunssfsi __powidf2 __cmpdi2 __lshrdi3 __clzdi2 __addvdi3 __subvsi3 __clzsi2 __subvdi3 __mulsc3 __enable_execute_stack'.split(' '))
+        safe_symbols.append('_Jv_RegisterClasses')
+
+    if sym in safe_symbols:
         return
     libnames = []
     for lib in libs: