diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1f604f76ee..0a070dc9bb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2020-02-22  Tom Tromey  <tom@tromey.com>
+
+	* dwarf2/loc.h (dwarf2_compile_expr_to_ax): Don't declare.
+	* dwarf2/loc.c (dwarf2_compile_expr_to_ax): Now static.
+
 2020-02-22  Tom Tromey  <tom@tromey.com>
 
 	* tui/tui-data.h (TUI_DISASM_WIN): Cast to tui_disasm_window.
diff --git a/gdb/dwarf2/loc.c b/gdb/dwarf2/loc.c
index a9523e9f7e..a5074da8bf 100644
--- a/gdb/dwarf2/loc.c
+++ b/gdb/dwarf2/loc.c
@@ -2881,7 +2881,7 @@ get_ax_pc (void *baton)
    example, if the expression cannot be compiled, or if the expression
    is invalid.  */
 
-void
+static void
 dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
 			   unsigned int addr_size, const gdb_byte *op_ptr,
 			   const gdb_byte *op_end,
diff --git a/gdb/dwarf2/loc.h b/gdb/dwarf2/loc.h
index 8fff663ebf..4514fa93c7 100644
--- a/gdb/dwarf2/loc.h
+++ b/gdb/dwarf2/loc.h
@@ -242,26 +242,6 @@ extern const struct symbol_computed_ops dwarf2_loclist_funcs;
 extern const struct symbol_block_ops dwarf2_block_frame_base_locexpr_funcs;
 extern const struct symbol_block_ops dwarf2_block_frame_base_loclist_funcs;
 
-/* Compile a DWARF location expression to an agent expression.
-   
-   EXPR is the agent expression we are building.
-   LOC is the agent value we modify.
-   ARCH is the architecture.
-   ADDR_SIZE is the size of addresses, in bytes.
-   OP_PTR is the start of the location expression.
-   OP_END is one past the last byte of the location expression.
-   
-   This will throw an exception for various kinds of errors -- for
-   example, if the expression cannot be compiled, or if the expression
-   is invalid.  */
-
-extern void dwarf2_compile_expr_to_ax (struct agent_expr *expr,
-				       struct axs_value *loc,
-				       unsigned int addr_size,
-				       const gdb_byte *op_ptr,
-				       const gdb_byte *op_end,
-				       struct dwarf2_per_cu_data *per_cu);
-
 /* Determined tail calls for constructing virtual tail call frames.  */
 
 struct call_site_chain