From 29a4c7ea895da8bb721f1d9342b0a8ef3ad89b2f Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Tue, 8 Oct 2024 16:20:06 +0200
Subject: [PATCH] Fixes to make sure each header can be compiled in a
 standalone way (#1178)

Verified with
``find include -name "*.h" -exec g++ -c {} -Iinclude -DUSE_UNSTABLE_GEOS_CPP_API \;``
---
 include/geos/edgegraph/MarkHalfEdge.h                    | 1 +
 include/geos/geom/prep/PreparedLineStringDistance.h      | 3 +++
 include/geos/geom/prep/PreparedLineStringNearestPoints.h | 7 +++++++
 include/geos/linearref/LocationIndexedLine.h             | 1 +
 include/geos/operation/relateng/EdgeSetIntersector.h     | 1 +
 include/geos/operation/union/CascadedPolygonUnion.h      | 2 ++
 include/geos/operation/union/PointGeometryUnion.h        | 1 +
 include/geos/triangulate/polygon/PolygonHoleJoiner.h     | 1 +
 include/geos/triangulate/polygon/PolygonNoder.h          | 7 +++++++
 include/geos/triangulate/tri/TriEdge.h                   | 9 +--------
 10 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/include/geos/edgegraph/MarkHalfEdge.h b/include/geos/edgegraph/MarkHalfEdge.h
index 5a73d6d18a..11eaeb9101 100644
--- a/include/geos/edgegraph/MarkHalfEdge.h
+++ b/include/geos/edgegraph/MarkHalfEdge.h
@@ -16,6 +16,7 @@
 #pragma once
 
 #include <geos/geom/Coordinate.h>
+#include <geos/edgegraph/HalfEdge.h>
 
 #include <geos/export.h>
 #include <string>
diff --git a/include/geos/geom/prep/PreparedLineStringDistance.h b/include/geos/geom/prep/PreparedLineStringDistance.h
index 89c886d3e8..04ef279582 100644
--- a/include/geos/geom/prep/PreparedLineStringDistance.h
+++ b/include/geos/geom/prep/PreparedLineStringDistance.h
@@ -21,6 +21,9 @@
 
 namespace geos {
 namespace geom { // geos::geom
+
+class Geometry;
+
 namespace prep { // geos::geom::prep
 
 class PreparedLineString;
diff --git a/include/geos/geom/prep/PreparedLineStringNearestPoints.h b/include/geos/geom/prep/PreparedLineStringNearestPoints.h
index d6366ef6a6..82939fa5f7 100644
--- a/include/geos/geom/prep/PreparedLineStringNearestPoints.h
+++ b/include/geos/geom/prep/PreparedLineStringNearestPoints.h
@@ -19,8 +19,15 @@
 
 #pragma once
 
+#include <memory>
+
+#include <geos/geom/prep/PreparedLineString.h>
+
 namespace geos {
 namespace geom { // geos::geom
+
+class CoordinateSequence;
+
 namespace prep { // geos::geom::prep
 
 class PreparedLineStringNearestPoints {
diff --git a/include/geos/linearref/LocationIndexedLine.h b/include/geos/linearref/LocationIndexedLine.h
index 98af39a3c8..f6035903e7 100644
--- a/include/geos/linearref/LocationIndexedLine.h
+++ b/include/geos/linearref/LocationIndexedLine.h
@@ -21,6 +21,7 @@
 #include <geos/export.h>
 #include <geos/geom/Coordinate.h>
 #include <geos/geom/Geometry.h>
+#include <geos/linearref/ExtractLineByLocation.h>
 #include <geos/linearref/LinearLocation.h>
 #include <geos/linearref/LocationIndexOfPoint.h>
 #include <geos/linearref/LocationIndexOfLine.h>
diff --git a/include/geos/operation/relateng/EdgeSetIntersector.h b/include/geos/operation/relateng/EdgeSetIntersector.h
index 35028b5bd4..0b59eabc94 100644
--- a/include/geos/operation/relateng/EdgeSetIntersector.h
+++ b/include/geos/operation/relateng/EdgeSetIntersector.h
@@ -43,6 +43,7 @@ using geos::geom::Envelope;
 using geos::geom::Geometry;
 using geos::index::strtree::TemplateSTRtree;
 using geos::index::chain::MonotoneChain;
+using geos::noding::SegmentString;
 using geos::operation::relateng::EdgeSegmentIntersector;
 
 
diff --git a/include/geos/operation/union/CascadedPolygonUnion.h b/include/geos/operation/union/CascadedPolygonUnion.h
index a89e6fa1c2..2b1e292670 100644
--- a/include/geos/operation/union/CascadedPolygonUnion.h
+++ b/include/geos/operation/union/CascadedPolygonUnion.h
@@ -20,6 +20,8 @@
 
 #pragma once
 
+#include <vector>
+
 #include <geos/export.h>
 
 #include <geos/operation/union/UnionStrategy.h>
diff --git a/include/geos/operation/union/PointGeometryUnion.h b/include/geos/operation/union/PointGeometryUnion.h
index 665c53043b..35d615ebbd 100644
--- a/include/geos/operation/union/PointGeometryUnion.h
+++ b/include/geos/operation/union/PointGeometryUnion.h
@@ -22,6 +22,7 @@
 
 #include <vector>
 #include <algorithm>
+#include <memory>
 
 // Forward declarations
 namespace geos {
diff --git a/include/geos/triangulate/polygon/PolygonHoleJoiner.h b/include/geos/triangulate/polygon/PolygonHoleJoiner.h
index 665b16126b..b65c0c0a04 100644
--- a/include/geos/triangulate/polygon/PolygonHoleJoiner.h
+++ b/include/geos/triangulate/polygon/PolygonHoleJoiner.h
@@ -31,6 +31,7 @@ namespace geom {
 class Envelope;
 class Geometry;
 class LinearRing;
+class Polygon;
 }
 namespace noding {
 }
diff --git a/include/geos/triangulate/polygon/PolygonNoder.h b/include/geos/triangulate/polygon/PolygonNoder.h
index 44d93877e8..94c3556414 100644
--- a/include/geos/triangulate/polygon/PolygonNoder.h
+++ b/include/geos/triangulate/polygon/PolygonNoder.h
@@ -18,7 +18,11 @@
 // #include <geos/geom/Coordinate.h>
 //#include <geos/geom/CoordinateSequence.h>
 
+#include <geos/export.h>
+
 #include <map>
+#include <memory>
+#include <vector>
 
 // Forward declarations
 namespace geos {
@@ -29,6 +33,9 @@ class CoordinateSequence;
 namespace noding {
 class NodedSegmentString;
 }
+namespace algorithm {
+class LineIntersector;
+}
 }
 
 using geos::geom::Coordinate;
diff --git a/include/geos/triangulate/tri/TriEdge.h b/include/geos/triangulate/tri/TriEdge.h
index 8058856027..208006449b 100644
--- a/include/geos/triangulate/tri/TriEdge.h
+++ b/include/geos/triangulate/tri/TriEdge.h
@@ -15,16 +15,9 @@
 #pragma once
 
 #include <geos/export.h>
+#include <geos/geom/Coordinate.h>
 #include <iostream>
 
-
-// Forward declarations
-namespace geos {
-namespace geom {
-class Coordinate;
-}
-}
-
 using geos::geom::Coordinate;
 
 namespace geos {        // geos.