Sharpmake.Options.Vc.Compiler.UseStandardConformingPreprocessor support

Sharpmake.Generators/FastBuild/Bff.Template.cs

@@ -355,6 +355,7 @@ public static class ConfigurationFile
             + ' [cmdLineOptions.IgnoreStandardIncludePath]'
             + ' [cmdLineOptions.GeneratePreprocessedFile]'
             + ' [cmdLineOptions.KeepComments]'
+            + ' [cmdLineOptions.UseStandardConformingPreprocessor]'
             + ' [cmdLineOptions.StringPooling]'
             + ' [cmdLineOptions.MinimalRebuild]'
             + ' [cmdLineOptions.ExceptionHandling]'

Sharpmake.Generators/VisualStudio/ProjectOptionsGenerator.cs

@@ -695,6 +695,28 @@ private void GenerateCompilerOptions(IGenerationContext context, ProjectOptionsG
             Options.Option(Options.Vc.Compiler.KeepComment.Enable, () => { context.Options["KeepComments"] = "true"; context.CommandLineOptions["KeepComments"] = "/C"; })
             );
 
+            //Options.Vc.Compiler.UseStandardConformingPreprocessor.    See: https://learn.microsoft.com/en-us/cpp/build/reference/zc-preprocessor?view=msvc-170
+            //    Disable                                 /Zc:preprocessor-
+            //    Enable                                  /Zc:preprocessor
+            context.SelectOption
+            (
+            Options.Option(Options.Vc.Compiler.UseStandardConformingPreprocessor.Default, () =>
+            {
+                context.Options["UseStandardConformingPreprocessor"] = FileGeneratorUtilities.RemoveLineTag;
+                context.CommandLineOptions["UseStandardConformingPreprocessor"] = FileGeneratorUtilities.RemoveLineTag;
+            }),
+            Options.Option(Options.Vc.Compiler.UseStandardConformingPreprocessor.Disable, () =>
+            {
+                context.Options["UseStandardConformingPreprocessor"] = "false";
+                context.CommandLineOptions["UseStandardConformingPreprocessor"] = "/Zc:preprocessor-";
+            }),
+            Options.Option(Options.Vc.Compiler.UseStandardConformingPreprocessor.Enable, () =>
+            {
+                context.Options["UseStandardConformingPreprocessor"] = "true";
+                context.CommandLineOptions["UseStandardConformingPreprocessor"] = "/Zc:preprocessor";
+            })
+            );
+
             //Options.Vc.Compiler.StringPooling.
             //    Disable                                 StringPooling="false"
             //    Enable                                  StringPooling="true"                            /GF

Sharpmake.Platforms/Sharpmake.CommonPlatforms/BasePlatform.Vcxproj.Template.cs

@@ -35,6 +35,7 @@ public abstract partial class BasePlatform
       <PreprocessToFile>[options.GeneratePreprocessedFile]</PreprocessToFile>
       <PreprocessSuppressLineNumbers>[options.PreprocessSuppressLineNumbers]</PreprocessSuppressLineNumbers>
       <PreprocessKeepComments>[options.KeepComments]</PreprocessKeepComments>
+      <UseStandardPreprocessor>[options.UseStandardConformingPreprocessor]</UseStandardPreprocessor>
       <StringPooling>[options.StringPooling]</StringPooling>
       <MinimalRebuild>[options.MinimalRebuild]</MinimalRebuild>
       <ExceptionHandling>[options.ExceptionHandling]</ExceptionHandling>

Sharpmake/Options.Vc.cs

@@ -679,6 +679,17 @@ public enum KeepComment
                     Enable
                 }
 
+                /// <summary>
+                /// Enables a token-based preprocessor that conforms to C99 and C++11 and later standards.
+                /// </summary>
+                public enum UseStandardConformingPreprocessor
+                {
+                    [Default]
+                    Default,
+                    Disable,
+                    Enable
+                }
+
                 /// <summary>
                 /// Enables the compiler to create a single read-only copy of identical strings in the program image and in memory during execution, resulting in smaller programs, an optimization called string pooling. /O1, /O2, and /ZI  automatically set /GF option.
                 /// </summary>