Update Xcode.
diff --git a/developer-xcode/libzip.xcodeproj/project.pbxproj b/developer-xcode/libzip.xcodeproj/project.pbxproj
index 413ca0a..70f9e80 100644
--- a/developer-xcode/libzip.xcodeproj/project.pbxproj
+++ b/developer-xcode/libzip.xcodeproj/project.pbxproj
@@ -615,6 +615,7 @@
4B51DDB21FDADEDF00C5CA85 /* INSTALL.md */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = net.daringfireball.markdown; path = INSTALL.md; sourceTree = "<group>"; };
4B51DDB31FDAE1DB00C5CA85 /* ziptool_regress.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = ziptool_regress.c; sourceTree = "<group>"; };
4B51DDC01FDAE20A00C5CA85 /* ziptool_regress */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = ziptool_regress; sourceTree = BUILT_PRODUCTS_DIR; };
+ 4B55D93F2475274B00CE8C38 /* CMakeLists.txt */ = {isa = PBXFileReference; lastKnownFileType = text; path = CMakeLists.txt; sourceTree = "<group>"; };
4B5D0CD4244B154E006C2E93 /* zip_source_get_file_attributes.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = zip_source_get_file_attributes.c; sourceTree = "<group>"; };
4B69E6ED2032F1870001EEE7 /* zip_winzip_aes.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = zip_winzip_aes.c; sourceTree = "<group>"; };
4B69E6F020330D460001EEE7 /* zip_crypto_gnutls.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = zip_crypto_gnutls.c; sourceTree = "<group>"; };
@@ -1054,6 +1055,7 @@
4B01D72015B2F54C002D5007 /* src */ = {
isa = PBXGroup;
children = (
+ 4B55D93F2475274B00CE8C38 /* CMakeLists.txt */,
4B01D72115B2F572002D5007 /* zipcmp.c */,
4B01D72215B2F572002D5007 /* zipmerge.c */,
4BACD57C15BC2AEF00920691 /* ziptool.c */,
