src/drt/src/global.h is very generic; rename

`src/drt/src/global.h` is often used witout any prefix
at all (so just included as "global.h"), which is conflicing
if there happens to be e.g. `@abc` in the include path (which also
has a `"global.h"`. It also makes the current cyclic dependencies
to fix a bit more confusing.

Rename to `drt-global.h` to have an unambiguous name.

Signed-off-by: Henner Zeller <h.zeller@acm.org>

Author: hzeller

src/drt/BUILD

@@ -118,10 +118,10 @@ cc_library(
         "src/dr/FlexDR.h",
         "src/dr/FlexGridGraph.h",
         "src/dr/FlexWavefront.h",
+        "src/drt-global.h",
         "src/frDesign.h",
         "src/frRegionQuery.h",
         "src/gc/FlexGC.h",
-        "src/global.h",
         "src/pa/AbstractPAGraphics.h",
         "src/pa/FlexPA.h",
         "src/pa/FlexPA_unique.h",

src/drt/src/GraphicsFactory.cpp

@@ -8,9 +8,9 @@
 
 #include "dr/AbstractDRGraphics.h"
 #include "dr/FlexDR_graphics.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
 #include "frDesign.h"
-#include "global.h"
 #include "gui/gui.h"
 #include "odb/db.h"
 #include "pa/AbstractPAGraphics.h"

src/drt/src/TritonRoute.cpp

@@ -35,6 +35,7 @@
 #include "distributed/frArchive.h"
 #include "dr/AbstractDRGraphics.h"
 #include "dr/FlexDR.h"
+#include "drt-global.h"
 #include "drt/PinAccessService.h"
 #include "dst/Distributed.h"
 #include "dst/JobMessage.h"
@@ -43,7 +44,6 @@
 #include "frProfileTask.h"
 #include "frRTree.h"
 #include "gc/FlexGC.h"
-#include "global.h"
 #include "io/GuideProcessor.h"
 #include "io/io.h"
 #include "odb/db.h"

src/drt/src/db/drObj/drNet.h

@@ -21,8 +21,8 @@
 #include "db/infra/frSegStyle.h"
 #include "db/obj/frAccess.h"
 #include "db/obj/frBlockObject.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
-#include "global.h"
 
 namespace drt {
 class frNet;

src/drt/src/db/obj/frNet.h

@@ -14,8 +14,8 @@
 #include "db/obj/frGuide.h"
 #include "db/obj/frShape.h"
 #include "db/obj/frVia.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
-#include "global.h"
 #include "odb/dbTypes.h"
 
 namespace drt {

src/drt/src/db/tech/frTechObject.h

@@ -18,8 +18,8 @@
 #include "db/tech/frLayer.h"
 #include "db/tech/frViaDef.h"
 #include "db/tech/frViaRuleGenerate.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
-#include "global.h"
 #include "odb/dbTypes.h"
 #include "utl/Logger.h"
 

src/drt/src/distributed/RoutingCallBack.h

@@ -20,11 +20,11 @@
 #include "distributed/frArchive.h"
 #include "distributed/paUpdate.h"
 #include "dr/FlexDR.h"
+#include "drt-global.h"
 #include "drt/TritonRoute.h"
 #include "dst/Distributed.h"
 #include "dst/JobCallBack.h"
 #include "dst/JobMessage.h"
-#include "global.h"
 #include "omp.h"
 #include "pa/FlexPA.h"
 #include "utl/Logger.h"

src/drt/src/dr/FlexGridGraph.h

@@ -25,9 +25,9 @@
 #include "db/tech/frTechObject.h"
 #include "dr/FlexMazeTypes.h"
 #include "dr/FlexWavefront.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
 #include "frDesign.h"
-#include "global.h"
 #include "odb/dbTypes.h"
 #include "utl/Logger.h"
 

src/drt/src/dr/FlexGridGraph_maze.cpp

@@ -17,8 +17,8 @@
 #include "dr/FlexGridGraph.h"
 #include "dr/FlexMazeTypes.h"
 #include "dr/FlexWavefront.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
-#include "global.h"
 #include "odb/dbTypes.h"
 #include "odb/geom.h"
 

src/drt/src/dr/FlexWavefront.h

@@ -9,8 +9,8 @@
 
 #include "db/infra/frBox.h"
 #include "dr/FlexMazeTypes.h"
+#include "drt-global.h"
 #include "frBaseTypes.h"
-#include "global.h"
 
 namespace drt {
 class FlexWavefrontGrid