From 245bf9342929fa1e9e340ea554be1e9d00f85e92 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <contact@klayout.de>
Date: Sun, 24 Jan 2021 17:36:12 +0000
Subject: [PATCH] Some build fixes to enable basic compilation on CentOS6

---
 src/db/db/dbColdProxy.cc                  | 12 ++++++++----
 src/db/db/dbColdProxy.h                   | 14 ++++++++++++++
 src/pymod/bridge_sample/bridge_sample.cc  |  1 -
 src/pymod/bridge_sample/bridge_sample.pro |  4 ++++
 src/tl/tl/tlHttpStreamQt.cc               |  2 ++
 5 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/src/db/db/dbColdProxy.cc b/src/db/db/dbColdProxy.cc
index 3471d0ed6..b1a70549d 100644
--- a/src/db/db/dbColdProxy.cc
+++ b/src/db/db/dbColdProxy.cc
@@ -33,16 +33,16 @@ namespace db
 {
 
 static tl::Mutex s_map_mutex;
-static std::map<std::string, tl::weak_collection<ColdProxy> > s_proxies_per_library_name;
+static std::map<std::string, tl::weak_collection<ColdProxy> *> s_proxies_per_library_name;
 
 const tl::weak_collection<ColdProxy> &
 ColdProxy::cold_proxies_per_lib_name (const std::string &libname)
 {
   tl::MutexLocker locker (&s_map_mutex);
 
-  std::map<std::string, tl::weak_collection<ColdProxy> >::const_iterator i = s_proxies_per_library_name.find (libname);
+  std::map<std::string, tl::weak_collection<ColdProxy> *>::const_iterator i = s_proxies_per_library_name.find (libname);
   if (i != s_proxies_per_library_name.end ()) {
-    return i->second;
+    return *i->second;
   } else {
     static tl::weak_collection<ColdProxy> s_empty;
     return s_empty;
@@ -54,7 +54,11 @@ ColdProxy::ColdProxy (db::cell_index_type ci, db::Layout &layout, const ProxyCon
 {
   if (! info.lib_name.empty ()) {
     tl::MutexLocker locker (&s_map_mutex);
-    s_proxies_per_library_name [info.lib_name].push_back (this);
+    std::map<std::string, tl::weak_collection<ColdProxy> *>::iterator i = s_proxies_per_library_name.find (info.lib_name);
+    if (i != s_proxies_per_library_name.end ()) {
+      i = s_proxies_per_library_name.insert (std::make_pair (info.lib_name, new tl::weak_collection<ColdProxy> ())).first;
+    }
+    i->second->push_back (this);
   }
 }
 
diff --git a/src/db/db/dbColdProxy.h b/src/db/db/dbColdProxy.h
index 728b8dd82..a8481f89b 100644
--- a/src/db/db/dbColdProxy.h
+++ b/src/db/db/dbColdProxy.h
@@ -30,6 +30,7 @@
 #include "dbCell.h"
 
 #include "tlObject.h"
+#include "tlTypeTraits.h"
 
 namespace db
 {
@@ -102,10 +103,23 @@ public:
 
 private:
   ProxyContextInfo *mp_context_info;
+
+  ColdProxy (const ColdProxy &d);
+  ColdProxy &operator= (const ColdProxy &d);
 };
 
 }
 
+namespace tl
+{
+  template <>
+  struct type_traits<db::ColdProxy> : public type_traits<void>
+  {
+    typedef tl::false_tag has_default_constructor;
+    typedef tl::false_tag has_copy_constructor;
+  };
+}
+
 #endif
 
 
diff --git a/src/pymod/bridge_sample/bridge_sample.cc b/src/pymod/bridge_sample/bridge_sample.cc
index 5735913a8..47e28ce55 100644
--- a/src/pymod/bridge_sample/bridge_sample.cc
+++ b/src/pymod/bridge_sample/bridge_sample.cc
@@ -44,7 +44,6 @@
 #include "pyaRefs.h"
 #include "dbPolygon.h"
 
-
 static PyObject *BridgeError;
 
 static PyObject *
diff --git a/src/pymod/bridge_sample/bridge_sample.pro b/src/pymod/bridge_sample/bridge_sample.pro
index 1e1f58527..abbf68470 100644
--- a/src/pymod/bridge_sample/bridge_sample.pro
+++ b/src/pymod/bridge_sample/bridge_sample.pro
@@ -88,10 +88,14 @@ LIBS += -L$$LIBDIR -lklayout_db
       -Wno-deprecated-declarations \
       -Wno-reserved-user-defined-literal \
 
+  # because we use unordered_map/unordered_set:
+  QMAKE_CXXFLAGS += -std=c++0x
+
   # Python is somewhat sloppy and relies on the compiler initializing fields
   # of strucs to 0:
   QMAKE_CXXFLAGS_WARN_ON += \
       -Wno-missing-field-initializers
+
 } else {
 
   # disable some warnings
diff --git a/src/tl/tl/tlHttpStreamQt.cc b/src/tl/tl/tlHttpStreamQt.cc
index ab7c0f981..e53b94f57 100644
--- a/src/tl/tl/tlHttpStreamQt.cc
+++ b/src/tl/tl/tlHttpStreamQt.cc
@@ -342,10 +342,12 @@ InputHttpStreamPrivateData::finished (QNetworkReply *reply)
   }
 
   if (tl::verbosity() >= 40) {
+#if QT_VERSION >= 0x40800
     const QList<QNetworkReply::RawHeaderPair> &raw_headers = reply->rawHeaderPairs ();
     for (QList<QNetworkReply::RawHeaderPair>::const_iterator h = raw_headers.begin (); h != raw_headers.end (); ++h) {
       tl::info << "HTTP response header: " << h->first.constData () << ": " << h->second.constData ();
     }
+#endif
   }
 
   QVariant redirect_target = reply->attribute (QNetworkRequest::RedirectionTargetAttribute);