msbuilds now writes a custom props file to disable 4566

src/pch.cpp

@@ -1,4 +1,2 @@
 #include "pch.h"
-
-#pragma warning(disable: 4566)  // character cannot be represented in CP
 #include <fmt/format.cc>

src/pch.h

@@ -43,7 +43,6 @@
 #pragma warning(disable: 4242)  // possible loss of data
 #pragma warning(disable: 4244)  // possible loss of data
 #pragma warning(disable: 4275)  // non dll-interface base
-#pragma warning(disable: 4566)  // character cannot be represented in CP
 
 
 #include <string>

src/tasks/python.cpp

@@ -126,7 +126,7 @@ void python::build_and_install_from_source()
 		.projects({
 			"python", "pythonw", "python3dll", "select", "pyexpat",
 			"unicodedata", "_queue", "_bz2", "_ssl"})
-			.parameters({
+		.parameters({
 			"bz2Dir=" + path_to_utf8(bzip2::source_path()),
 			"zlibDir=" + path_to_utf8(zlib::source_path()),
 			"opensslIncludeDir=" + path_to_utf8(openssl::include_path()),

src/tools/msbuild.cpp

@@ -60,6 +60,8 @@ int msbuild::result() const
 
 void msbuild::do_run()
 {
+	write_custom_props_file();
+
 	// 14.2 to v142
 	const auto toolset = "v" + replace_all(tools::vs::toolset(), ".", "");
 
@@ -132,4 +134,27 @@ void msbuild::do_run()
 	execute_and_join();
 }
 
+void msbuild::write_custom_props_file()
+{
+	const fs::path file = sln_.parent_path() / "Directory.Build.props";
+	if (fs::exists(file))
+	{
+		cx_->trace(context::generic, "props file {} already exists", file);
+		return;
+	}
+
+	const std::string content = R"(<!-- generated by mob.exe -->
+<Project>
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<DisableSpecificWarnings>4566</DisableSpecificWarnings>
+		</ClCompile>
+	</ItemDefinitionGroup>
+</Project>
+)";
+
+	op::write_text_file(*cx_, file, content);
+
+}
+
 }	// namespace

src/tools/tools.h

@@ -284,6 +284,8 @@ private:
 	std::string platform_;
 	arch arch_;
 	flags_t flags_;
+
+	void write_custom_props_file();
 };
 
 

vs/props.props

@@ -21,6 +21,7 @@
       <ObjectFileName>$(IntDir)fake\%(RelativeDir)</ObjectFileName>
       <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_SILENCE_CXX17_OLD_ALLOCATOR_MEMBERS_DEPRECATION_WARNING;CURL_STATICLIB;NOMINMAX;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\third-party\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <DisableSpecificWarnings>4566</DisableSpecificWarnings>
     </ClCompile>
     <Link>
       <AdditionalLibraryDirectories>..\third-party\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>