From ca97bfb4b80b03dec103afabccc4aa155c88673e Mon Sep 17 00:00:00 2001
From: Nuno Lopes <nlopes@microsoft.com>
Date: Sun, 5 Jul 2020 11:44:12 +0100
Subject: [PATCH] fix build

---
 src/api/z3_api.h    |  6 +++---
 src/smt/smt_enode.h |  4 ++--
 src/util/mpq_inf.h  | 10 +++++-----
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/api/z3_api.h b/src/api/z3_api.h
index ac7f899ef..f8448a81b 100644
--- a/src/api/z3_api.h
+++ b/src/api/z3_api.h
@@ -2,7 +2,7 @@
     Copyright (c) 2015 Microsoft Corporation
 --*/
 
-#ifndef Z3_API_H_
+#pragma once
 
 DEFINE_TYPE(Z3_symbol);
 DEFINE_TYPE(Z3_literals);
@@ -5557,12 +5557,12 @@ extern "C" {
     */
 
     Z3_string Z3_API Z3_eval_smtlib2_string(Z3_context, Z3_string str);
-    
+
     /*@}*/
 
     /** @name Error Handling */
     /*@{*/
-#pragma once
+#ifndef SAFE_ERRORS
     /**
        \brief Return the error code for the last API call.
 
diff --git a/src/smt/smt_enode.h b/src/smt/smt_enode.h
index 6e2796dc1..7047c97c4 100644
--- a/src/smt/smt_enode.h
+++ b/src/smt/smt_enode.h
@@ -16,7 +16,7 @@ Author:
 Revision History:
 
 --*/
-#ifndef SMT_ENODE_H_
+#pragma once
 
 #include "ast/ast.h"
 #include "smt/smt_types.h"
@@ -46,7 +46,7 @@ namespace smt {
 
     // #define SPARSE_MAP
 
-#pragma once
+#ifndef SPARSE_MAP
     typedef ptr_vector<enode> app2enode_t;    // app -> enode
 #else
     class app2enode_t : public u_map<enode *> {
diff --git a/src/util/mpq_inf.h b/src/util/mpq_inf.h
index 16d3da866..e2bcbcba6 100644
--- a/src/util/mpq_inf.h
+++ b/src/util/mpq_inf.h
@@ -16,7 +16,7 @@ Author:
 Revision History:
 
 --*/
-#ifndef MPQ_INF_H_
+#pragma once
 
 #include "util/mpq.h"
 #include "util/hash.h"
@@ -39,14 +39,14 @@ public:
     }
 
     enum inf_kind { NEG=-1, ZERO, POS };
-    
+
     void reset(mpq_inf & a) {
         m.reset(a.first);
         m.reset(a.second);
     }
-    
+
     unsigned hash(mpq_inf const & a) const { return hash_u_u(m.hash(a.first), m.hash(a.second)); }
-    
+
     void del(mpq_inf & a) {
         m.del(a.first);
         m.del(a.second);
@@ -278,7 +278,7 @@ public:
     mpq_manager<SYNCH>& get_mpq_manager() { return m; }
 };
 
-#pragma once
+#ifndef SINGLE_THREAD
 typedef mpq_inf_manager<true>  synch_mpq_inf_manager;
 #else
 typedef mpq_inf_manager<false> synch_mpq_inf_manager;