Add support for embedding libraries when building on SunOS.

Based on the work of Denis Kozadaev on DilOS.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit ad602fcd91)

modules/TDEMacros.cmake

@@ -780,7 +780,11 @@ macro( tde_add_library _arg_target )
 
   # set embedded archives
   if( _embed )
-    list( INSERT _link 0 -Wl,-whole-archive ${_embed} -Wl,-no-whole-archive )
+    if( ${CMAKE_SYSTEM_NAME} MATCHES "SunOS" )
+      list( INSERT _link 0 -Wl,-zallextract ${_embed} -Wl,-zdefaultextract )
+    else( )
+      list( INSERT _link 0 -Wl,-whole-archive ${_embed} -Wl,-no-whole-archive )
+    endif( )
   endif( _embed )
 
   # set link libraries