diff --git a/Projects/MacOS/ProjectBuilder/XercesLib/XercesLib.pbproj/project.pbxproj b/Projects/MacOS/ProjectBuilder/XercesLib/XercesLib.pbproj/project.pbxproj
index 08579e4fc1a57e443132f679ce2a120acb4ea763..3445429abe64fcfb5d2b292117b1480c54ce1f8d 100644
--- a/Projects/MacOS/ProjectBuilder/XercesLib/XercesLib.pbproj/project.pbxproj
+++ b/Projects/MacOS/ProjectBuilder/XercesLib/XercesLib.pbproj/project.pbxproj
@@ -359,6 +359,8 @@
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 				F5F38FB1039FA5DB01A80066,
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@@ -3432,6 +3434,7 @@
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 				90FE1B2D04FAE65600A80082,
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+				9067ED1804FC0A9600A80082,
 			);
 			isa = PBXHeadersBuildPhase;
 			runOnlyForDeploymentPostprocessing = 0;
@@ -3751,6 +3754,7 @@
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 				90EF59DA04D99CF800DC5A2D,
 				90FE1B2904FAE65600A80082,
+				9067ED1904FC0A9600A80082,
 			);
 			isa = PBXSourcesBuildPhase;
 			runOnlyForDeploymentPostprocessing = 0;
@@ -4669,6 +4673,30 @@
 			settings = {
 			};
 		};
+		9067ED1604FC0A9600A80082 = {
+			fileEncoding = 30;
+			isa = PBXFileReference;
+			path = MemoryManagerArrayImpl.hpp;
+			refType = 4;
+		};
+		9067ED1704FC0A9600A80082 = {
+			fileEncoding = 30;
+			isa = PBXFileReference;
+			path = MemoryManagerArrayImpl.cpp;
+			refType = 4;
+		};
+		9067ED1804FC0A9600A80082 = {
+			fileRef = 9067ED1604FC0A9600A80082;
+			isa = PBXBuildFile;
+			settings = {
+			};
+		};
+		9067ED1904FC0A9600A80082 = {
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+			isa = PBXBuildFile;
+			settings = {
+			};
+		};
 		90796E490407DAAC0095DDBF = {
 			fileEncoding = 4;
 			isa = PBXFileReference;