Explicitly expose std::__once_call* in SO files.

apache · May 10, 2018 · 1a96830 · 1a96830
1 parent 154860c
commit 1a96830
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/cpp/src/arrow/symbols.map b/cpp/src/arrow/symbols.map
@@ -16,6 +16,15 @@
 # under the License.
 
 {
+  global:
+    extern "C++" {
+      # Export pthread_once-related symbols so that two SO files
+      # (e.g. libarrow.so and libplasma.so) don't use separate copies of
+      # those symbols.
+      # See https://github.com/apache/arrow/pull/1953#issuecomment-386057063
+      std::__once*;
+    };
+
   # Symbols marked as 'local' are not exported by the DSO and thus may not
   # be used by client applications.
   local: