Enable building with Visual Studion 2013.

Backpatch to 9.3.

Brar Piening.

src/tools/msvc/MSBuildProject.pm

@@ -18,6 +18,7 @@ sub _new
 	bless($self, $classname);
 
 	$self->{filenameExtension} = '.vcxproj';
+	$self->{ToolsVersion} = '4.0';
 
 	return $self;
 }
@@ -28,7 +29,7 @@ sub WriteHeader
 
 	print $f <<EOF;
 <?xml version="1.0" encoding="Windows-1252"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="$self->{ToolsVersion}" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
 EOF
 	$self->WriteConfigurationHeader($f, 'Debug');
@@ -414,6 +415,7 @@ sub new
 	bless($self, $classname);
 
 	$self->{vcver} = '11.00';
+	$self->{PlatformToolset} = 'v110';
 
 	return $self;
 }
@@ -434,9 +436,32 @@ sub WriteConfigurationPropertyGroup
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
     <WholeProgramOptimization>$p->{wholeopt}</WholeProgramOptimization>
-    <PlatformToolset>v110</PlatformToolset>
+    <PlatformToolset>$self->{PlatformToolset}</PlatformToolset>
   </PropertyGroup>
 EOF
 }
 
+package VC2013Project;
+
+#
+# Package that encapsulates a Visual C++ 2013 project file
+#
+
+use strict;
+use warnings;
+use base qw(VC2012Project);
+
+sub new
+{
+	my $classname = shift;
+	my $self      = $classname->SUPER::_new(@_);
+	bless($self, $classname);
+
+	$self->{vcver} = '12.00';
+	$self->{PlatformToolset} = 'v120';
+	$self->{ToolsVersion} = '12.0';
+
+	return $self;
+}
+
 1;

src/tools/msvc/Mkvcbuild.pm

@@ -70,9 +70,11 @@ sub mkvcbuild
 	  erand48.c snprintf.c strlcat.c strlcpy.c dirmod.c noblock.c path.c
 	  pgcheckdir.c pg_crc.c pgmkdirp.c pgsleep.c pgstrcasecmp.c pqsignal.c
 	  qsort.c qsort_arg.c quotes.c
-	  sprompt.c tar.c thread.c getopt.c getopt_long.c dirent.c rint.c
+	  sprompt.c tar.c thread.c getopt.c getopt_long.c dirent.c
 	  win32env.c win32error.c win32setlocale.c);
 
+	push(@pgportfiles, 'rint.c') if ($vsVersion < '12.00');
+
 	our @pgcommonallfiles = qw(
 	  exec.c pgfnames.c psprintf.c relpath.c rmtree.c username.c wait_error.c);
 

src/tools/msvc/Solution.pm

@@ -19,6 +19,8 @@ sub _new
 		options  => $options,
 		numver   => '',
 		strver   => '',
+		VisualStudioVersion => undef,
+		MinimumVisualStudioVersion => undef,
 		vcver    => undef,
 		platform => undef, };
 	bless($self, $classname);
@@ -59,6 +61,11 @@ sub _new
 	return $self;
 }
 
+sub GetAdditionalHeaders
+{
+	return '';
+}
+
 sub DeterminePlatform
 {
 	my $self = shift;
@@ -541,6 +548,8 @@ Microsoft Visual Studio Solution File, Format Version $self->{solutionFileVersio
 # $self->{visualStudioName}
 EOF
 
+	print SLN $self->GetAdditionalHeaders();
+
 	foreach my $fld (keys %{ $self->{projects} })
 	{
 		foreach my $proj (@{ $self->{projects}->{$fld} })
@@ -723,4 +732,39 @@ sub new
 	return $self;
 }
 
+package VS2013Solution;
+
+#
+# Package that encapsulates a Visual Studio 2013 solution file
+#
+
+use Carp;
+use strict;
+use warnings;
+use base qw(Solution);
+
+sub new
+{
+	my $classname = shift;
+	my $self      = $classname->SUPER::_new(@_);
+	bless($self, $classname);
+
+	$self->{solutionFileVersion}        = '12.00';
+	$self->{vcver}                      = '12.00';
+	$self->{visualStudioName}           = 'Visual Studio 2013';
+	$self->{VisualStudioVersion}        = '12.0.21005.1',
+	$self->{MinimumVisualStudioVersion} = '10.0.40219.1',
+
+	return $self;
+}
+
+sub GetAdditionalHeaders
+{
+	my ($self, $f) = @_;
+
+	return qq|VisualStudioVersion = $self->{VisualStudioVersion}
+MinimumVisualStudioVersion = $self->{MinimumVisualStudioVersion}
+|;
+}
+
 1;

src/tools/msvc/VSObjectFactory.pm

@@ -45,6 +45,10 @@ sub CreateSolution
 	{
 		return new VS2012Solution(@_);
 	}
+	elsif ($visualStudioVersion eq '12.00')
+	{
+		return new VS2013Solution(@_);
+	}
 	else
 	{
 		croak "The requested Visual Studio version is not supported.";
@@ -76,6 +80,10 @@ sub CreateProject
 	{
 		return new VC2012Project(@_);
 	}
+	elsif ($visualStudioVersion eq '12.00')
+	{
+		return new VC2013Project(@_);
+	}
 	else
 	{
 		croak "The requested Visual Studio version is not supported.";
@@ -115,11 +123,11 @@ sub DetermineVisualStudioVersion
 sub _GetVisualStudioVersion
 {
 	my ($major, $minor) = @_;
-	if ($major > 11)
+	if ($major > 12)
 	{
 		carp
 "The determined version of Visual Studio is newer than the latest supported version. Returning the latest supported version instead.";
-		return '11.00';
+		return '12.00';
 	}
 	elsif ($major < 6)
 	{