diff --git a/devtools/create_project/cmake.cpp b/devtools/create_project/cmake.cpp
index 7077b6a8bdc..c421d699c2d 100644
--- a/devtools/create_project/cmake.cpp
+++ b/devtools/create_project/cmake.cpp
@@ -330,7 +330,7 @@ void CMakeProvider::writeDefines(const BuildSetup &setup, std::ofstream &output)
 	}
 }
 
-void CMakeProvider::writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+void CMakeProvider::writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 												const std::string &objPrefix, const std::string &filePrefix) {
 
 	std::string lastName;
diff --git a/devtools/create_project/cmake.h b/devtools/create_project/cmake.h
index f2e3047c658..8f62e22b573 100644
--- a/devtools/create_project/cmake.h
+++ b/devtools/create_project/cmake.h
@@ -46,7 +46,7 @@ protected:
 	void createProjectFile(const std::string &name, const std::string &uuid, const BuildSetup &setup, const std::string &moduleDir,
 						   const StringList &includeList, const StringList &excludeList) final;
 
-	void writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+	void writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 								const std::string &objPrefix, const std::string &filePrefix) final;
 
 	const char *getProjectExtension() final;
diff --git a/devtools/create_project/codeblocks.cpp b/devtools/create_project/codeblocks.cpp
index 14183521405..2921fe6be46 100644
--- a/devtools/create_project/codeblocks.cpp
+++ b/devtools/create_project/codeblocks.cpp
@@ -248,7 +248,7 @@ void CodeBlocksProvider::writeDefines(const StringList &defines, std::ofstream &
 		output << "\t\t\t\t\t<Add option=\"-D" << *i << "\" />\n";
 }
 
-void CodeBlocksProvider::writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+void CodeBlocksProvider::writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 												const std::string &objPrefix, const std::string &filePrefix) {
 
 	for (FileNode::NodeList::const_iterator i = dir.children.begin(); i != dir.children.end(); ++i) {
diff --git a/devtools/create_project/codeblocks.h b/devtools/create_project/codeblocks.h
index fbd82bc182d..340b77bf429 100644
--- a/devtools/create_project/codeblocks.h
+++ b/devtools/create_project/codeblocks.h
@@ -41,7 +41,7 @@ protected:
 	void createProjectFile(const std::string &name, const std::string &uuid, const BuildSetup &setup, const std::string &moduleDir,
 						   const StringList &includeList, const StringList &excludeList) final;
 
-	void writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+	void writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 								const std::string &objPrefix, const std::string &filePrefix) final;
 
 	void writeReferences(const BuildSetup &setup, std::ofstream &output) final;
diff --git a/devtools/create_project/create_project.cpp b/devtools/create_project/create_project.cpp
index d93468eff85..4e945a71692 100644
--- a/devtools/create_project/create_project.cpp
+++ b/devtools/create_project/create_project.cpp
@@ -1800,7 +1800,7 @@ std::string ProjectProvider::getLastPathComponent(const std::string &path) {
 		return path.substr(pos + 1);
 }
 
-void ProjectProvider::addFilesToProject(const std::string &dir, std::ofstream &projectFile,
+void ProjectProvider::addFilesToProject(const std::string &dir, std::ostream &projectFile,
 										const StringList &includeList, const StringList &excludeList,
 										const std::string &filePrefix) {
 	FileNode *files = scanFiles(dir, includeList, excludeList);
diff --git a/devtools/create_project/create_project.h b/devtools/create_project/create_project.h
index feb7615fc93..af2450bb021 100644
--- a/devtools/create_project/create_project.h
+++ b/devtools/create_project/create_project.h
@@ -551,7 +551,7 @@ protected:
 	 * @param objPrefix Prefix to use for object files, which would name clash.
 	 * @param filePrefix Generic prefix to all files of the node.
 	 */
-	virtual void writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+	virtual void writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 	                                    const std::string &objPrefix, const std::string &filePrefix) = 0;
 
 	/**
@@ -575,7 +575,7 @@ protected:
 	 * @param excludeList Files to exclude (must have a relative directory as prefix).
 	 * @param filePrefix Prefix to use for relative path arguments.
 	 */
-	void addFilesToProject(const std::string &dir, std::ofstream &projectFile,
+	void addFilesToProject(const std::string &dir, std::ostream &projectFile,
 	                       const StringList &includeList, const StringList &excludeList,
 	                       const std::string &filePrefix);
 
diff --git a/devtools/create_project/msbuild.cpp b/devtools/create_project/msbuild.cpp
index 574d2cf3850..f866a089f71 100644
--- a/devtools/create_project/msbuild.cpp
+++ b/devtools/create_project/msbuild.cpp
@@ -506,7 +506,7 @@ void MSBuildProvider::outputNasmCommand(std::ostream &projectFile, const std::st
 	}
 }
 
-void MSBuildProvider::writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int,
+void MSBuildProvider::writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int,
 											 const std::string &objPrefix, const std::string &filePrefix) {
 	// Reset lists
 	_filters.clear();
diff --git a/devtools/create_project/msbuild.h b/devtools/create_project/msbuild.h
index f92376b0f0b..cd0f4d992a8 100644
--- a/devtools/create_project/msbuild.h
+++ b/devtools/create_project/msbuild.h
@@ -36,7 +36,7 @@ protected:
 
 	void outputProjectSettings(std::ofstream &project, const std::string &name, const BuildSetup &setup, bool isRelease, MSVC_Architecture arch, const std::string &configuration);
 
-	void writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+	void writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 	                            const std::string &objPrefix, const std::string &filePrefix) override;
 
 	void writeReferences(const BuildSetup &setup, std::ofstream &output) override;
diff --git a/devtools/create_project/xcode.cpp b/devtools/create_project/xcode.cpp
index a25d7dabf23..bd9b56062f0 100644
--- a/devtools/create_project/xcode.cpp
+++ b/devtools/create_project/xcode.cpp
@@ -375,7 +375,7 @@ void XcodeProvider::outputMainProjectFile(const BuildSetup &setup) {
 //////////////////////////////////////////////////////////////////////////
 // Files
 //////////////////////////////////////////////////////////////////////////
-void XcodeProvider::writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+void XcodeProvider::writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 										   const std::string &objPrefix, const std::string &filePrefix) {
 
 	// Ensure that top-level groups are generated for i.e. engines/
diff --git a/devtools/create_project/xcode.h b/devtools/create_project/xcode.h
index 5305d9c3191..c5a01e733ee 100644
--- a/devtools/create_project/xcode.h
+++ b/devtools/create_project/xcode.h
@@ -44,7 +44,7 @@ protected:
 	void createProjectFile(const std::string &name, const std::string &uuid, const BuildSetup &setup, const std::string &moduleDir,
 						   const StringList &includeList, const StringList &excludeList) final;
 
-	void writeFileListToProject(const FileNode &dir, std::ofstream &projectFile, const int indentation,
+	void writeFileListToProject(const FileNode &dir, std::ostream &projectFile, const int indentation,
 								const std::string &objPrefix, const std::string &filePrefix) final;
 private:
 	enum {