On 2018-08-22 17:09:05 -0700, Andres Freund wrote:
> Attached is a version doing so.

Mildly updated version attached. This adds an explanatory commit
message, removes one stray docs C89 reference, and fixes a mis-squashing
of a patch.

Greetings,

Andres Freund
>From 4b63f3307180a778018439ad3dee9a89aa4f4352 Mon Sep 17 00:00:00 2001
From: Andres Freund <and...@anarazel.de>
Date: Wed, 22 Aug 2018 15:10:23 -0700
Subject: [PATCH v2 1/4] Require C99 (and thus MSCV 2013 upwards).

In 86d78ef50e01 I enabled configure to check for C99 support, with the
goal of checking which platforms support C99.  While there are a few
machines without C99 support, de-supporting them for v12 was deemed
acceptable.

While not tested in aforementioned commit, the biggest increase in
minimum version comes from MSVC, which gained C99 support fairly
late. The subset in MSVC 2013 is sufficient for our needs, at this
point.  While that is a significant increase in minimum version, the
existing windows binaries are already built with a new enough version.

Make configure error out if C99 support could not be detected. For
MSVC builds, increase the minimum version to 2013.

The increase to MSVC 2013 allows us to get rid of VCBuildProject.pm,
as that was only required for MSVC 2005/2008.

Author: Andres Freund
Discussion: https://postgr.es/m/97d4b165-192d-3605-749c-f614a0c4e...@2ndquadrant.com
---
 configure                         |  49 +++++
 configure.in                      |  10 +
 doc/src/sgml/install-windows.sgml |  26 +--
 doc/src/sgml/installation.sgml    |   2 +-
 doc/src/sgml/sources.sgml         |  33 ++--
 src/tools/msvc/MSBuildProject.pm  |  78 +-------
 src/tools/msvc/README             |  18 +-
 src/tools/msvc/Solution.pm        | 102 ----------
 src/tools/msvc/VCBuildProject.pm  | 309 ------------------------------
 src/tools/msvc/VSObjectFactory.pm |  37 +---
 src/tools/msvc/build.pl           |   6 +-
 11 files changed, 112 insertions(+), 558 deletions(-)
 delete mode 100644 src/tools/msvc/VCBuildProject.pm

diff --git a/configure b/configure
index 836d68dad37..dd439ddd2f6 100755
--- a/configure
+++ b/configure
@@ -4602,6 +4602,13 @@ if test "x$ac_cv_prog_cc_c99" != xno; then :
 fi
 
 
+
+# Error out if the compiler does not support C99, as the codebase
+# relies on that.
+if test "$ac_cv_prog_cc_c99" = no; then
+    as_fn_error $? "C compiler \"$CC\" does not support C99" "$LINENO" 5
+fi
+
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -5361,6 +5368,48 @@ fi
 
 
   # -Wdeclaration-after-statement isn't applicable for C++
+  # Really don't want VLAs to be used in our dialect of C
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${CC} supports -Werror=vla, for CFLAGS" >&5
+$as_echo_n "checking whether ${CC} supports -Werror=vla, for CFLAGS... " >&6; }
+if ${pgac_cv_prog_CC_cflags__Werror_vla+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  pgac_save_CFLAGS=$CFLAGS
+pgac_save_CC=$CC
+CC=${CC}
+CFLAGS="${CFLAGS} -Werror=vla"
+ac_save_c_werror_flag=$ac_c_werror_flag
+ac_c_werror_flag=yes
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  pgac_cv_prog_CC_cflags__Werror_vla=yes
+else
+  pgac_cv_prog_CC_cflags__Werror_vla=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_c_werror_flag=$ac_save_c_werror_flag
+CFLAGS="$pgac_save_CFLAGS"
+CC="$pgac_save_CC"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_prog_CC_cflags__Werror_vla" >&5
+$as_echo "$pgac_cv_prog_CC_cflags__Werror_vla" >&6; }
+if test x"$pgac_cv_prog_CC_cflags__Werror_vla" = x"yes"; then
+  CFLAGS="${CFLAGS} -Werror=vla"
+fi
+
+
+  # -Wvla is not applicable for C++
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${CC} supports -Wendif-labels, for CFLAGS" >&5
 $as_echo_n "checking whether ${CC} supports -Wendif-labels, for CFLAGS... " >&6; }
diff --git a/configure.in b/configure.in
index 6e141064e5c..5869ab7c5bc 100644
--- a/configure.in
+++ b/configure.in
@@ -359,6 +359,13 @@ esac
 
 AC_PROG_CC([$pgac_cc_list])
 AC_PROG_CC_C99()
+
+# Error out if the compiler does not support C99, as the codebase
+# relies on that.
+if test "$ac_cv_prog_cc_c99" = no; then
+    AC_MSG_ERROR([C compiler "$CC" does not support C99])
+fi
+
 AC_PROG_CXX([$pgac_cxx_list])
 
 # Check if it's Intel's compiler, which (usually) pretends to be gcc,
@@ -477,6 +484,9 @@ if test "$GCC" = yes -a "$ICC" = no; then
   # These work in some but not all gcc versions
   PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
   # -Wdeclaration-after-statement isn't applicable for C++
+  # Really don't want VLAs to be used in our dialect of C
+  PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla])
+  # -Wvla is not applicable for C++
   PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
   PGAC_PROG_CXX_CFLAGS_OPT([-Wendif-labels])
   PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute])
diff --git a/doc/src/sgml/install-windows.sgml b/doc/src/sgml/install-windows.sgml
index 9597bc35a14..22a2ffd55ee 100644
--- a/doc/src/sgml/install-windows.sgml
+++ b/doc/src/sgml/install-windows.sgml
@@ -22,7 +22,7 @@
   Microsoft tools is to install <productname>Visual Studio Express 2017
   for Windows Desktop</productname> and use the included
   compiler. It is also possible to build with the full
-  <productname>Microsoft Visual C++ 2005 to 2017</productname>.
+  <productname>Microsoft Visual C++ 2013 to 2017</productname>.
   In some cases that requires the installation of the
   <productname>Windows SDK</productname> in addition to the compiler.
  </para>
@@ -77,20 +77,24 @@
  <para>
   Both 32-bit and 64-bit builds are possible with the Microsoft Compiler suite.
   32-bit PostgreSQL builds are possible with
-  <productname>Visual Studio 2005</productname> to
+  <productname>Visual Studio 2013</productname> to
   <productname>Visual Studio 2017</productname> (including Express editions),
   as well as standalone Windows SDK releases 6.0 to 8.1.
   64-bit PostgreSQL builds are supported with
   <productname>Microsoft Windows SDK</productname> version 6.0a to 8.1 or
-  <productname>Visual Studio 2008</productname> and above. Compilation
-  is supported down to <productname>Windows XP</productname> and
-  <productname>Windows Server 2003</productname> when building with
-  <productname>Visual Studio 2005</productname> to
-  <productname>Visual Studio 2013</productname>. Building with
-  <productname>Visual Studio 2015</productname> is supported down to
-  <productname>Windows Vista</productname> and <productname>Windows Server 2008</productname>.
-   Building with <productname>Visual Studio 2017</productname> is supported
-   down to <productname>Windows 7 SP1</productname> and <productname>Windows Server 2008 R2 SP1</productname>.
+  <productname>Visual Studio 2013</productname> and above. Compilation
+  is supported down to <productname>Windows 7</productname> and
+  <productname>Windows Server 2008 R2 SP1</productname> when building with
+  <productname>Visual Studio 2013</productname> to
+  <productname>Visual Studio 2017</productname>.
+   <!--
+       For 2013 requirements:
+       https://docs.microsoft.com/en-us/visualstudio/productinfo/vs2013-sysrequirements-vs
+       For 2015 requirements:
+       https://docs.microsoft.com/en-us/visualstudio/productinfo/vs2015-sysrequirements-vs
+       For 2017 requirements:
+       https://docs.microsoft.com/en-us/visualstudio/productinfo/vs2017-system-requirements-vs
+   -->
  </para>
 
  <para>
diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index 10c925d2905..4487d0cfd17 100644
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -85,7 +85,7 @@ su - postgres
     <listitem>
      <para>
       You need an <acronym>ISO</acronym>/<acronym>ANSI</acronym> C compiler (at least
-      C89-compliant). Recent
+      C99-compliant). Recent
       versions of <productname>GCC</productname> are recommended, but
       <productname>PostgreSQL</productname> is known to build using a wide variety
       of compilers from different vendors.
diff --git a/doc/src/sgml/sources.sgml b/doc/src/sgml/sources.sgml
index e53ee1dc6ad..419f753c7bc 100644
--- a/doc/src/sgml/sources.sgml
+++ b/doc/src/sgml/sources.sgml
@@ -867,19 +867,30 @@ BETTER: unrecognized node type: 42
     <title>C Standard</title>
     <para>
      Code in <productname>PostgreSQL</productname> should only rely on language
-     features available in the C89 standard. That means a conforming
-     C89 compiler has to be able to compile postgres, at least aside
-     from a few platform dependent pieces. Features from later
-     revision of the C standard or compiler specific features can be
-     used, if a fallback is provided.
+     features available in the C99 standard. That means a conforming
+     C99 compiler has to be able to compile postgres, at least aside
+     from a few platform dependent pieces.
     </para>
     <para>
-     For example <literal>static inline</literal> and
-     <literal>_StaticAssert()</literal> are currently used, even
-     though they are from newer revisions of the C standard. If not
-     available we respectively fall back to defining the functions
-     without inline, and to using a C89 compatible replacement that
-     performs the same checks, but emits rather cryptic messages.
+     A few features included in the C99 standard are, at this time, not be
+     permitted to be used in core <productname>PostgreSQL</productname>
+     code. This currently includes variable length arrays, intermingled
+     declarations and code, <literal>//</literal> comments, universal
+     character names. Reasons for that include portability and historical
+     practices.
+    </para>
+    <para>
+     Features from later revision of the C standard or compiler specific
+     features can be used, if a fallback is provided.
+    </para>
+    <para>
+     For example <literal>_StaticAssert()</literal> and
+     <literal>__builtin_constant_p</literal> are currently used, even though
+     they are from newer revisions of the C standard and a
+     <productname>GCC</productname> extension respectively. If not available
+     we respectively fall back to using a C99 compatible replacement that
+     performs the same checks, but emits rather cryptic messages and do not
+     use <literal>__builtin_constant_p</literal>.
     </para>
    </simplesect>
 
diff --git a/src/tools/msvc/MSBuildProject.pm b/src/tools/msvc/MSBuildProject.pm
index 47252533a1b..149213378cf 100644
--- a/src/tools/msvc/MSBuildProject.pm
+++ b/src/tools/msvc/MSBuildProject.pm
@@ -1,7 +1,7 @@
 package MSBuildProject;
 
 #
-# Package that encapsulates a MSBuild project file (Visual C++ 2010 or greater)
+# Package that encapsulates a MSBuild project file (Visual C++ 2013 or greater)
 #
 # src/tools/msvc/MSBuildProject.pm
 #
@@ -257,6 +257,7 @@ sub WriteConfigurationPropertyGroup
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
     <WholeProgramOptimization>$p->{wholeopt}</WholeProgramOptimization>
+    <PlatformToolset>$self->{PlatformToolset}</PlatformToolset>
   </PropertyGroup>
 EOF
 	return;
@@ -391,75 +392,6 @@ EOF
 	return;
 }
 
-package VC2010Project;
-
-#
-# Package that encapsulates a Visual C++ 2010 project file
-#
-
-use strict;
-use warnings;
-use base qw(MSBuildProject);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{vcver} = '10.00';
-
-	return $self;
-}
-
-package VC2012Project;
-
-#
-# Package that encapsulates a Visual C++ 2012 project file
-#
-
-use strict;
-use warnings;
-use base qw(MSBuildProject);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{vcver}           = '11.00';
-	$self->{PlatformToolset} = 'v110';
-
-	return $self;
-}
-
-# This override adds the <PlatformToolset> element
-# to the PropertyGroup labeled "Configuration"
-sub WriteConfigurationPropertyGroup
-{
-	my ($self, $f, $cfgname, $p) = @_;
-	my $cfgtype =
-	  ($self->{type} eq "exe")
-	  ? 'Application'
-	  : ($self->{type} eq "dll" ? 'DynamicLibrary' : 'StaticLibrary');
-
-	print $f <<EOF;
-  <PropertyGroup Condition="'\$(Configuration)|\$(Platform)'=='$cfgname|$self->{platform}'" Label="Configuration">
-    <ConfigurationType>$cfgtype</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-    <WholeProgramOptimization>$p->{wholeopt}</WholeProgramOptimization>
-    <PlatformToolset>$self->{PlatformToolset}</PlatformToolset>
-  </PropertyGroup>
-EOF
-	return;
-}
-
 package VC2013Project;
 
 #
@@ -468,7 +400,7 @@ package VC2013Project;
 
 use strict;
 use warnings;
-use base qw(VC2012Project);
+use base qw(MSBuildProject);
 
 no warnings qw(redefine);    ## no critic
 
@@ -493,7 +425,7 @@ package VC2015Project;
 
 use strict;
 use warnings;
-use base qw(VC2012Project);
+use base qw(MSBuildProject);
 
 no warnings qw(redefine);    ## no critic
 
@@ -518,7 +450,7 @@ package VC2017Project;
 
 use strict;
 use warnings;
-use base qw(VC2012Project);
+use base qw(MSBuildProject);
 
 no warnings qw(redefine);    ## no critic
 
diff --git a/src/tools/msvc/README b/src/tools/msvc/README
index bfa98045f22..4ab81d3402f 100644
--- a/src/tools/msvc/README
+++ b/src/tools/msvc/README
@@ -4,7 +4,7 @@ MSVC build
 ==========
 
 This directory contains the tools required to build PostgreSQL using
-Microsoft Visual Studio 2005 - 2017. This builds the whole backend, not just
+Microsoft Visual Studio 2013 - 2017. This builds the whole backend, not just
 the libpq frontend library. For more information, see the documentation
 chapter "Installation on Windows" and the description below.
 
@@ -67,14 +67,12 @@ Install.pm             module containing the install logic
 Mkvcbuild.pm           module containing the code to generate the Visual
                        Studio build (project/solution) files
 MSBuildProject.pm      module containing the code to generate MSBuild based
-                       project files (Visual Studio 2010 or greater)
+                       project files (Visual Studio 2013 or greater)
 Project.pm             module containing the common code to generate the
                        Visual Studio project files. Also provides the
                        common interface of all project file generators
 Solution.pm            module containing the code to generate the Visual
                        Studio solution files.
-VCBuildProject.pm      module containing the code to generate VCBuild based
-                       project files (Visual Studio 2005/2008)
 VSObjectFactory.pm     factory module providing the code to create the
                        appropriate project/solution files for the current
                        environment
@@ -90,14 +88,12 @@ config_default.pl to create the configuration arguments.
 These configuration arguments are passed over to Mkvcbuild::mkvcbuild
 (Mkvcbuild.pm) which creates the Visual Studio project and solution files.
 It does this by using VSObjectFactory::CreateSolution to create an object
-implementing the Solution interface (this could be either a VS2005Solution,
-a VS2008Solution, a VS2010Solution or a VS2012Solution or a VS2013Solution,
+implementing the Solution interface (this could be either a VS2013Solution,
 or a VS2015Solution or a VS2017Solution, all in Solution.pm, depending on
 the user's build environment) and adding objects implementing the corresponding
-Project interface (VC2005Project or VC2008Project from VCBuildProject.pm or
-VC2010Project or VC2012Project or VC2013Project or VC2015Project or VC2017Project
-from MSBuildProject.pm) to it.
+Project interface (VC2013Project or VC2015Project or VC2017Project from
+MSBuildProject.pm) to it.
 When Solution::Save is called, the implementations of Solution and Project
 save their content in the appropriate format.
-The final step of starting the appropriate build program (msbuild or vcbuild)
-is performed in build.pl again.
+The final step of starting the appropriate build program (msbuild) is
+performed in build.pl again.
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 78db247b291..7d7ce8b0312 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -760,108 +760,6 @@ sub GetFakeConfigure
 	return $cfg;
 }
 
-package VS2005Solution;
-
-#
-# Package that encapsulates a Visual Studio 2005 solution file
-#
-
-use strict;
-use warnings;
-use base qw(Solution);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{solutionFileVersion} = '9.00';
-	$self->{vcver}               = '8.00';
-	$self->{visualStudioName}    = 'Visual Studio 2005';
-
-	return $self;
-}
-
-package VS2008Solution;
-
-#
-# Package that encapsulates a Visual Studio 2008 solution file
-#
-
-use strict;
-use warnings;
-use base qw(Solution);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{solutionFileVersion} = '10.00';
-	$self->{vcver}               = '9.00';
-	$self->{visualStudioName}    = 'Visual Studio 2008';
-
-	return $self;
-}
-
-package VS2010Solution;
-
-#
-# Package that encapsulates a Visual Studio 2010 solution file
-#
-
-use Carp;
-use strict;
-use warnings;
-use base qw(Solution);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{solutionFileVersion} = '11.00';
-	$self->{vcver}               = '10.00';
-	$self->{visualStudioName}    = 'Visual Studio 2010';
-
-	return $self;
-}
-
-package VS2012Solution;
-
-#
-# Package that encapsulates a Visual Studio 2012 solution file
-#
-
-use Carp;
-use strict;
-use warnings;
-use base qw(Solution);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{solutionFileVersion} = '12.00';
-	$self->{vcver}               = '11.00';
-	$self->{visualStudioName}    = 'Visual Studio 2012';
-
-	return $self;
-}
-
 package VS2013Solution;
 
 #
diff --git a/src/tools/msvc/VCBuildProject.pm b/src/tools/msvc/VCBuildProject.pm
deleted file mode 100644
index 6cdf822a637..00000000000
--- a/src/tools/msvc/VCBuildProject.pm
+++ /dev/null
@@ -1,309 +0,0 @@
-package VCBuildProject;
-
-#
-# Package that encapsulates a VCBuild (Visual C++ 2005/2008) project file
-#
-# src/tools/msvc/VCBuildProject.pm
-#
-
-use Carp;
-use strict;
-use warnings;
-use base qw(Project);
-
-no warnings qw(redefine);    ## no critic
-
-sub _new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{filenameExtension} = '.vcproj';
-
-	return $self;
-}
-
-sub WriteHeader
-{
-	my ($self, $f) = @_;
-
-	print $f <<EOF;
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject ProjectType="Visual C++" Version="$self->{vcver}" Name="$self->{name}" ProjectGUID="$self->{guid}">
- <Platforms><Platform Name="$self->{platform}"/></Platforms>
- <Configurations>
-EOF
-
-	$self->WriteConfiguration(
-		$f, 'Debug',
-		{
-			defs     => "_DEBUG;DEBUG=1",
-			wholeopt => 0,
-			opt      => 0,
-			strpool  => 'false',
-			runtime  => 3
-		});
-	$self->WriteConfiguration(
-		$f,
-		'Release',
-		{
-			defs     => "",
-			wholeopt => 0,
-			opt      => 3,
-			strpool  => 'true',
-			runtime  => 2
-		});
-	print $f <<EOF;
- </Configurations>
-EOF
-	$self->WriteReferences($f);
-	return;
-}
-
-sub WriteFiles
-{
-	my ($self, $f) = @_;
-	print $f <<EOF;
- <Files>
-EOF
-	my @dirstack = ();
-	my %uniquefiles;
-	foreach my $fileNameWithPath (sort keys %{ $self->{files} })
-	{
-		confess "Bad format filename '$fileNameWithPath'\n"
-		  unless ($fileNameWithPath =~ m!^(.*)/([^/]+)\.(c|cpp|y|l|rc)$!);
-		my $dir  = $1;
-		my $file = $2;
-
-		# Walk backwards down the directory stack and close any dirs
-		# we're done with.
-		while ($#dirstack >= 0)
-		{
-			if (join('/', @dirstack) eq
-				substr($dir, 0, length(join('/', @dirstack))))
-			{
-				last if (length($dir) == length(join('/', @dirstack)));
-				last
-				  if (substr($dir, length(join('/', @dirstack)), 1) eq '/');
-			}
-			print $f ' ' x $#dirstack . "  </Filter>\n";
-			pop @dirstack;
-		}
-
-		# Now walk forwards and create whatever directories are needed
-		while (join('/', @dirstack) ne $dir)
-		{
-			my $left = substr($dir, length(join('/', @dirstack)));
-			$left =~ s/^\///;
-			my @pieces = split /\//, $left;
-			push @dirstack, $pieces[0];
-			print $f ' ' x $#dirstack
-			  . "  <Filter Name=\"$pieces[0]\" Filter=\"\">\n";
-		}
-
-		# VC builds do not like file paths with forward slashes.
-		my $fileNameWithPathFormatted = $fileNameWithPath;
-		$fileNameWithPathFormatted =~ s/\//\\/g;
-
-		print $f ' ' x $#dirstack
-		  . "   <File RelativePath=\"$fileNameWithPathFormatted\"";
-		if ($fileNameWithPath =~ /\.y$/)
-		{
-			my $of = $fileNameWithPath;
-			$of =~ s/\.y$/.c/;
-			$of =~
-			  s{^src/pl/plpgsql/src/gram.c$}{src/pl/plpgsql/src/pl_gram.c};
-			print $f '>'
-			  . $self->GenerateCustomTool(
-				'Running bison on ' . $fileNameWithPath,
-				"perl src/tools/msvc/pgbison.pl $fileNameWithPath", $of)
-			  . '</File>' . "\n";
-		}
-		elsif ($fileNameWithPath =~ /\.l$/)
-		{
-			my $of = $fileNameWithPath;
-			$of =~ s/\.l$/.c/;
-			print $f '>'
-			  . $self->GenerateCustomTool(
-				'Running flex on ' . $fileNameWithPath,
-				"perl src/tools/msvc/pgflex.pl $fileNameWithPath", $of)
-			  . '</File>' . "\n";
-		}
-		elsif (defined($uniquefiles{$file}))
-		{
-
-			# File already exists, so fake a new name
-			my $obj = $dir;
-			$obj =~ s!/!_!g;
-			print $f
-			  "><FileConfiguration Name=\"Debug|$self->{platform}\"><Tool Name=\"VCCLCompilerTool\" ObjectFile=\".\\debug\\$self->{name}\\$obj"
-			  . "_$file.obj\" /></FileConfiguration><FileConfiguration Name=\"Release|$self->{platform}\"><Tool Name=\"VCCLCompilerTool\" ObjectFile=\".\\release\\$self->{name}\\$obj"
-			  . "_$file.obj\" /></FileConfiguration></File>\n";
-		}
-		else
-		{
-			$uniquefiles{$file} = 1;
-			print $f " />\n";
-		}
-	}
-	while ($#dirstack >= 0)
-	{
-		print $f ' ' x $#dirstack . "  </Filter>\n";
-		pop @dirstack;
-	}
-	print $f <<EOF;
- </Files>
-EOF
-	return;
-}
-
-sub Footer
-{
-	my ($self, $f) = @_;
-
-	print $f <<EOF;
- <Globals/>
-</VisualStudioProject>
-EOF
-	return;
-}
-
-sub WriteConfiguration
-{
-	my ($self, $f, $cfgname, $p) = @_;
-	my $cfgtype =
-	  ($self->{type} eq "exe") ? 1 : ($self->{type} eq "dll" ? 2 : 4);
-	my $libs = $self->GetAdditionalLinkerDependencies($cfgname, ' ');
-
-	my $targetmachine = $self->{platform} eq 'Win32' ? 1 : 17;
-
-	print $f <<EOF;
-  <Configuration Name="$cfgname|$self->{platform}" OutputDirectory=".\\$cfgname\\$self->{name}" IntermediateDirectory=".\\$cfgname\\$self->{name}"
-	ConfigurationType="$cfgtype" UseOfMFC="0" ATLMinimizesCRunTimeLibraryUsage="FALSE" CharacterSet="2" WholeProgramOptimization="$p->{wholeopt}">
-	<Tool Name="VCCLCompilerTool" Optimization="$p->{opt}"
-		AdditionalIncludeDirectories="$self->{prefixincludes}src/include;src/include/port/win32;src/include/port/win32_msvc;$self->{includes}"
-		PreprocessorDefinitions="WIN32;_WINDOWS;__WINDOWS__;__WIN32__;EXEC_BACKEND;WIN32_STACK_RLIMIT=4194304;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE$self->{defines}$p->{defs}"
-		StringPooling="$p->{strpool}"
-		RuntimeLibrary="$p->{runtime}" DisableSpecificWarnings="$self->{disablewarnings}"
-		AdditionalOptions="/MP"
-EOF
-	print $f <<EOF;
-		AssemblerOutput="0" AssemblerListingLocation=".\\$cfgname\\$self->{name}\\" ObjectFile=".\\$cfgname\\$self->{name}\\"
-		ProgramDataBaseFileName=".\\$cfgname\\$self->{name}\\" BrowseInformation="0"
-		WarningLevel="3" SuppressStartupBanner="TRUE" DebugInformationFormat="3" CompileAs="0"/>
-	<Tool Name="VCLinkerTool" OutputFile=".\\$cfgname\\$self->{name}\\$self->{name}.$self->{type}"
-		AdditionalDependencies="$libs"
-		LinkIncremental="0" SuppressStartupBanner="TRUE" AdditionalLibraryDirectories="" IgnoreDefaultLibraryNames="libc"
-		StackReserveSize="4194304" DisableSpecificWarnings="$self->{disablewarnings}"
-		GenerateDebugInformation="TRUE" ProgramDatabaseFile=".\\$cfgname\\$self->{name}\\$self->{name}.pdb"
-		GenerateMapFile="FALSE" MapFileName=".\\$cfgname\\$self->{name}\\$self->{name}.map"
-		RandomizedBaseAddress="FALSE"
-		SubSystem="1" TargetMachine="$targetmachine"
-EOF
-	if ($self->{disablelinkerwarnings})
-	{
-		print $f
-		  "\t\tAdditionalOptions=\"/ignore:$self->{disablelinkerwarnings}\"\n";
-	}
-	if ($self->{implib})
-	{
-		my $l = $self->{implib};
-		$l =~ s/__CFGNAME__/$cfgname/g;
-		print $f "\t\tImportLibrary=\"$l\"\n";
-	}
-	if ($self->{def})
-	{
-		my $d = $self->{def};
-		$d =~ s/__CFGNAME__/$cfgname/g;
-		print $f "\t\tModuleDefinitionFile=\"$d\"\n";
-	}
-
-	print $f "\t/>\n";
-	print $f
-	  "\t<Tool Name=\"VCLibrarianTool\" OutputFile=\".\\$cfgname\\$self->{name}\\$self->{name}.lib\" IgnoreDefaultLibraryNames=\"libc\" />\n";
-	print $f
-	  "\t<Tool Name=\"VCResourceCompilerTool\" AdditionalIncludeDirectories=\"src\\include\" />\n";
-	if ($self->{builddef})
-	{
-		print $f
-		  "\t<Tool Name=\"VCPreLinkEventTool\" Description=\"Generate DEF file\" CommandLine=\"perl src\\tools\\msvc\\gendef.pl $cfgname\\$self->{name} $self->{platform}\" />\n";
-	}
-	print $f <<EOF;
-  </Configuration>
-EOF
-	return;
-}
-
-sub WriteReferences
-{
-	my ($self, $f) = @_;
-	print $f " <References>\n";
-	foreach my $ref (@{ $self->{references} })
-	{
-		print $f
-		  "  <ProjectReference ReferencedProjectIdentifier=\"$ref->{guid}\" Name=\"$ref->{name}\" />\n";
-	}
-	print $f " </References>\n";
-	return;
-}
-
-sub GenerateCustomTool
-{
-	my ($self, $desc, $tool, $output, $cfg) = @_;
-	if (!defined($cfg))
-	{
-		return $self->GenerateCustomTool($desc, $tool, $output, 'Debug')
-		  . $self->GenerateCustomTool($desc, $tool, $output, 'Release');
-	}
-	return
-	  "<FileConfiguration Name=\"$cfg|$self->{platform}\"><Tool Name=\"VCCustomBuildTool\" Description=\"$desc\" CommandLine=\"$tool\" AdditionalDependencies=\"\" Outputs=\"$output\" /></FileConfiguration>";
-}
-
-package VC2005Project;
-
-#
-# Package that encapsulates a Visual C++ 2005 project file
-#
-
-use strict;
-use warnings;
-use base qw(VCBuildProject);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{vcver} = '8.00';
-
-	return $self;
-}
-
-package VC2008Project;
-
-#
-# Package that encapsulates a Visual C++ 2008 project file
-#
-
-use strict;
-use warnings;
-use base qw(VCBuildProject);
-
-no warnings qw(redefine);    ## no critic
-
-sub new
-{
-	my $classname = shift;
-	my $self      = $classname->SUPER::_new(@_);
-	bless($self, $classname);
-
-	$self->{vcver} = '9.00';
-
-	return $self;
-}
-
-1;
diff --git a/src/tools/msvc/VSObjectFactory.pm b/src/tools/msvc/VSObjectFactory.pm
index 92a4fb6841f..1a94cd866ee 100644
--- a/src/tools/msvc/VSObjectFactory.pm
+++ b/src/tools/msvc/VSObjectFactory.pm
@@ -13,7 +13,6 @@ use warnings;
 use Exporter;
 use Project;
 use Solution;
-use VCBuildProject;
 use MSBuildProject;
 
 our (@ISA, @EXPORT);
@@ -31,23 +30,7 @@ sub CreateSolution
 		$visualStudioVersion = DetermineVisualStudioVersion();
 	}
 
-	if ($visualStudioVersion eq '8.00')
-	{
-		return new VS2005Solution(@_);
-	}
-	elsif ($visualStudioVersion eq '9.00')
-	{
-		return new VS2008Solution(@_);
-	}
-	elsif ($visualStudioVersion eq '10.00')
-	{
-		return new VS2010Solution(@_);
-	}
-	elsif ($visualStudioVersion eq '11.00')
-	{
-		return new VS2012Solution(@_);
-	}
-	elsif ($visualStudioVersion eq '12.00')
+	if ($visualStudioVersion eq '12.00')
 	{
 		return new VS2013Solution(@_);
 	}
@@ -78,23 +61,7 @@ sub CreateProject
 		$visualStudioVersion = DetermineVisualStudioVersion();
 	}
 
-	if ($visualStudioVersion eq '8.00')
-	{
-		return new VC2005Project(@_);
-	}
-	elsif ($visualStudioVersion eq '9.00')
-	{
-		return new VC2008Project(@_);
-	}
-	elsif ($visualStudioVersion eq '10.00')
-	{
-		return new VC2010Project(@_);
-	}
-	elsif ($visualStudioVersion eq '11.00')
-	{
-		return new VC2012Project(@_);
-	}
-	elsif ($visualStudioVersion eq '12.00')
+	if ($visualStudioVersion eq '12.00')
 	{
 		return new VC2013Project(@_);
 	}
diff --git a/src/tools/msvc/build.pl b/src/tools/msvc/build.pl
index 9a234d1cc25..35649fe5a24 100644
--- a/src/tools/msvc/build.pl
+++ b/src/tools/msvc/build.pl
@@ -53,16 +53,12 @@ elsif (uc($ARGV[0]) ne "RELEASE")
 
 # ... and do it
 
-if ($buildwhat and $vcver >= 10.00)
+if ($buildwhat)
 {
 	system(
 		"msbuild $buildwhat.vcxproj /verbosity:normal $msbflags /p:Configuration=$bconf"
 	);
 }
-elsif ($buildwhat)
-{
-	system("vcbuild $msbflags $buildwhat.vcproj $bconf");
-}
 else
 {
 	system(
-- 
2.18.0.rc2.dirty

>From 15832a329d9f9bbeb6c31d916fd0b3d6f412c0f2 Mon Sep 17 00:00:00 2001
From: Andres Freund <and...@anarazel.de>
Date: Wed, 22 Aug 2018 16:44:33 -0700
Subject: [PATCH v2 2/4] Introduce minimal C99 usage to verify compiler
 support.

This just converts a few for loops in postgres.c to declare variables
in the loop initializer, and uses designated initializers in smgr.c's
definition of smgr callbacks.

Author: Andres Freund
Discussion: https://postgr.es/m/97d4b165-192d-3605-749c-f614a0c4e...@2ndquadrant.com
---
 src/backend/storage/smgr/smgr.c | 21 ++++++++++++++++++---
 src/backend/tcop/postgres.c     | 25 +++++++------------------
 2 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/src/backend/storage/smgr/smgr.c b/src/backend/storage/smgr/smgr.c
index 08f06bade25..189342ef86a 100644
--- a/src/backend/storage/smgr/smgr.c
+++ b/src/backend/storage/smgr/smgr.c
@@ -67,9 +67,24 @@ typedef struct f_smgr
 
 static const f_smgr smgrsw[] = {
 	/* magnetic disk */
-	{mdinit, NULL, mdclose, mdcreate, mdexists, mdunlink, mdextend,
-		mdprefetch, mdread, mdwrite, mdwriteback, mdnblocks, mdtruncate,
-		mdimmedsync, mdpreckpt, mdsync, mdpostckpt
+	{
+		.smgr_init = mdinit,
+		.smgr_shutdown = NULL,
+		.smgr_close = mdclose,
+		.smgr_create = mdcreate,
+		.smgr_exists = mdexists,
+		.smgr_unlink = mdunlink,
+		.smgr_extend = mdextend,
+		.smgr_prefetch = mdprefetch,
+		.smgr_read = mdread,
+		.smgr_write = mdwrite,
+		.smgr_writeback = mdwriteback,
+		.smgr_nblocks = mdnblocks,
+		.smgr_truncate = mdtruncate,
+		.smgr_immedsync = mdimmedsync,
+		.smgr_pre_ckpt = mdpreckpt,
+		.smgr_sync = mdsync,
+		.smgr_post_ckpt = mdpostckpt
 	}
 };
 
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 07b956553a7..7a9ada2c719 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -1310,7 +1310,6 @@ exec_parse_message(const char *query_string,	/* string to execute */
 	{
 		Query	   *query;
 		bool		snapshot_set = false;
-		int			i;
 
 		raw_parse_tree = linitial_node(RawStmt, parsetree_list);
 
@@ -1366,7 +1365,7 @@ exec_parse_message(const char *query_string,	/* string to execute */
 		/*
 		 * Check all parameter types got determined.
 		 */
-		for (i = 0; i < numParams; i++)
+		for (int i = 0; i < numParams; i++)
 		{
 			Oid			ptype = paramTypes[i];
 
@@ -1555,10 +1554,8 @@ exec_bind_message(StringInfo input_message)
 	numPFormats = pq_getmsgint(input_message, 2);
 	if (numPFormats > 0)
 	{
-		int			i;
-
 		pformats = (int16 *) palloc(numPFormats * sizeof(int16));
-		for (i = 0; i < numPFormats; i++)
+		for (int i = 0; i < numPFormats; i++)
 			pformats[i] = pq_getmsgint(input_message, 2);
 	}
 
@@ -1641,8 +1638,6 @@ exec_bind_message(StringInfo input_message)
 	 */
 	if (numParams > 0)
 	{
-		int			paramno;
-
 		params = (ParamListInfo) palloc(offsetof(ParamListInfoData, params) +
 										numParams * sizeof(ParamExternData));
 		/* we have static list of params, so no hooks needed */
@@ -1654,7 +1649,7 @@ exec_bind_message(StringInfo input_message)
 		params->parserSetupArg = NULL;
 		params->numParams = numParams;
 
-		for (paramno = 0; paramno < numParams; paramno++)
+		for (int paramno = 0; paramno < numParams; paramno++)
 		{
 			Oid			ptype = psrc->param_types[paramno];
 			int32		plength;
@@ -1782,10 +1777,8 @@ exec_bind_message(StringInfo input_message)
 	numRFormats = pq_getmsgint(input_message, 2);
 	if (numRFormats > 0)
 	{
-		int			i;
-
 		rformats = (int16 *) palloc(numRFormats * sizeof(int16));
-		for (i = 0; i < numRFormats; i++)
+		for (int i = 0; i < numRFormats; i++)
 			rformats[i] = pq_getmsgint(input_message, 2);
 	}
 
@@ -2212,7 +2205,6 @@ errdetail_params(ParamListInfo params)
 	{
 		StringInfoData param_str;
 		MemoryContext oldcontext;
-		int			paramno;
 
 		/* This code doesn't support dynamic param lists */
 		Assert(params->paramFetch == NULL);
@@ -2222,7 +2214,7 @@ errdetail_params(ParamListInfo params)
 
 		initStringInfo(&param_str);
 
-		for (paramno = 0; paramno < params->numParams; paramno++)
+		for (int paramno = 0; paramno < params->numParams; paramno++)
 		{
 			ParamExternData *prm = &params->params[paramno];
 			Oid			typoutput;
@@ -2325,7 +2317,6 @@ static void
 exec_describe_statement_message(const char *stmt_name)
 {
 	CachedPlanSource *psrc;
-	int			i;
 
 	/*
 	 * Start up a transaction command. (Note that this will normally change
@@ -2384,7 +2375,7 @@ exec_describe_statement_message(const char *stmt_name)
 														 * message type */
 	pq_sendint16(&row_description_buf, psrc->num_params);
 
-	for (i = 0; i < psrc->num_params; i++)
+	for (int i = 0; i < psrc->num_params; i++)
 	{
 		Oid			ptype = psrc->param_types[i];
 
@@ -4179,10 +4170,8 @@ PostgresMain(int argc, char *argv[],
 					numParams = pq_getmsgint(&input_message, 2);
 					if (numParams > 0)
 					{
-						int			i;
-
 						paramTypes = (Oid *) palloc(numParams * sizeof(Oid));
-						for (i = 0; i < numParams; i++)
+						for (int i = 0; i < numParams; i++)
 							paramTypes[i] = pq_getmsgint(&input_message, 4);
 					}
 					pq_getmsgend(&input_message);
-- 
2.18.0.rc2.dirty

>From 6f8acfd2c5ae1c296c8cc314ceb144beb6b353a7 Mon Sep 17 00:00:00 2001
From: Andres Freund <and...@anarazel.de>
Date: Wed, 22 Aug 2018 16:04:47 -0700
Subject: [PATCH v2 3/4] Remove test for VA_ARGS, implied by C99.

This simplifies logic / reduces duplication in a few headers.

Author: Andres Freund
Discussion: https://postgr.es/m/97d4b165-192d-3605-749c-f614a0c4e...@2ndquadrant.com
---
 config/c-compiler.m4          | 19 -------------------
 configure                     | 32 --------------------------------
 configure.in                  |  1 -
 src/include/pg_config.h.in    |  3 ---
 src/include/pg_config.h.win32 |  3 ---
 src/include/utils/elog.h      |  8 +-------
 src/pl/plpython/plpy_elog.h   |  4 ----
 7 files changed, 1 insertion(+), 69 deletions(-)

diff --git a/config/c-compiler.m4 b/config/c-compiler.m4
index 67675a31bb6..eedaf12d69c 100644
--- a/config/c-compiler.m4
+++ b/config/c-compiler.m4
@@ -415,25 +415,6 @@ fi])# PGAC_C_COMPUTED_GOTO
 
 
 
-# PGAC_C_VA_ARGS
-# --------------
-# Check if the C compiler understands C99-style variadic macros,
-# and define HAVE__VA_ARGS if so.
-AC_DEFUN([PGAC_C_VA_ARGS],
-[AC_CACHE_CHECK(for __VA_ARGS__, pgac_cv__va_args,
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>],
-[#define debug(...) fprintf(stderr, __VA_ARGS__)
-debug("%s", "blarg");
-])],
-[pgac_cv__va_args=yes],
-[pgac_cv__va_args=no])])
-if test x"$pgac_cv__va_args" = xyes ; then
-AC_DEFINE(HAVE__VA_ARGS, 1,
-          [Define to 1 if your compiler understands __VA_ARGS__ in macros.])
-fi])# PGAC_C_VA_ARGS
-
-
-
 # PGAC_PROG_VARCC_VARFLAGS_OPT
 # -----------------------
 # Given a compiler, variable name and a string, check if the compiler
diff --git a/configure b/configure
index dd439ddd2f6..b143c6d6ba4 100755
--- a/configure
+++ b/configure
@@ -13962,38 +13962,6 @@ if test x"$pgac_cv_computed_goto" = xyes ; then
 
 $as_echo "#define HAVE_COMPUTED_GOTO 1" >>confdefs.h
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __VA_ARGS__" >&5
-$as_echo_n "checking for __VA_ARGS__... " >&6; }
-if ${pgac_cv__va_args+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdio.h>
-int
-main ()
-{
-#define debug(...) fprintf(stderr, __VA_ARGS__)
-debug("%s", "blarg");
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  pgac_cv__va_args=yes
-else
-  pgac_cv__va_args=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv__va_args" >&5
-$as_echo "$pgac_cv__va_args" >&6; }
-if test x"$pgac_cv__va_args" = xyes ; then
-
-$as_echo "#define HAVE__VA_ARGS 1" >>confdefs.h
-
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether struct tm is in sys/time.h or time.h" >&5
 $as_echo_n "checking whether struct tm is in sys/time.h or time.h... " >&6; }
diff --git a/configure.in b/configure.in
index 5869ab7c5bc..3280afa0dab 100644
--- a/configure.in
+++ b/configure.in
@@ -1434,7 +1434,6 @@ PGAC_C_BUILTIN_BSWAP64
 PGAC_C_BUILTIN_CONSTANT_P
 PGAC_C_BUILTIN_UNREACHABLE
 PGAC_C_COMPUTED_GOTO
-PGAC_C_VA_ARGS
 PGAC_STRUCT_TIMEZONE
 PGAC_UNION_SEMUN
 PGAC_STRUCT_SOCKADDR_UN
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 827574ee40d..37649d77d67 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -754,9 +754,6 @@
 /* Define to 1 if your compiler understands _Static_assert. */
 #undef HAVE__STATIC_ASSERT
 
-/* Define to 1 if your compiler understands __VA_ARGS__ in macros. */
-#undef HAVE__VA_ARGS
-
 /* Define to 1 if you have the `__strtoll' function. */
 #undef HAVE___STRTOLL
 
diff --git a/src/include/pg_config.h.win32 b/src/include/pg_config.h.win32
index 46ce49def2f..4e2bd3c1352 100644
--- a/src/include/pg_config.h.win32
+++ b/src/include/pg_config.h.win32
@@ -597,9 +597,6 @@
 /* Define to 1 if your compiler understands _Static_assert. */
 /* #undef HAVE__STATIC_ASSERT */
 
-/* Define to 1 if your compiler understands __VA_ARGS__ in macros. */
-#define HAVE__VA_ARGS 1
-
 /* Define to the appropriate printf length modifier for 64-bit ints. */
 #define INT64_MODIFIER "ll"
 
diff --git a/src/include/utils/elog.h b/src/include/utils/elog.h
index 4350b120aab..33c6b53e278 100644
--- a/src/include/utils/elog.h
+++ b/src/include/utils/elog.h
@@ -207,9 +207,8 @@ extern int	getinternalerrposition(void);
  *		elog(ERROR, "portal \"%s\" not found", stmt->portalname);
  *----------
  */
-#ifdef HAVE__VA_ARGS
 /*
- * If we have variadic macros, we can give the compiler a hint about the
+ * Using variadic macros, we can give the compiler a hint about the
  * call not returning when elevel >= ERROR.  See comments for ereport().
  * Note that historically elog() has called elog_start (which saves errno)
  * before evaluating "elevel", so we preserve that behavior here.
@@ -236,11 +235,6 @@ extern int	getinternalerrposition(void);
 		} \
 	} while(0)
 #endif							/* HAVE__BUILTIN_CONSTANT_P */
-#else							/* !HAVE__VA_ARGS */
-#define elog  \
-	elog_start(__FILE__, __LINE__, PG_FUNCNAME_MACRO), \
-	elog_finish
-#endif							/* HAVE__VA_ARGS */
 
 extern void elog_start(const char *filename, int lineno, const char *funcname);
 extern void elog_finish(int elevel, const char *fmt,...) pg_attribute_printf(2, 3);
diff --git a/src/pl/plpython/plpy_elog.h b/src/pl/plpython/plpy_elog.h
index e4b30c3cca1..b56ac412476 100644
--- a/src/pl/plpython/plpy_elog.h
+++ b/src/pl/plpython/plpy_elog.h
@@ -15,7 +15,6 @@ extern PyObject *PLy_exc_spi_error;
  *
  * See comments at elog() about the compiler hinting.
  */
-#ifdef HAVE__VA_ARGS
 #ifdef HAVE__BUILTIN_CONSTANT_P
 #define PLy_elog(elevel, ...) \
 	do { \
@@ -32,9 +31,6 @@ extern PyObject *PLy_exc_spi_error;
 			pg_unreachable(); \
 	} while(0)
 #endif							/* HAVE__BUILTIN_CONSTANT_P */
-#else							/* !HAVE__VA_ARGS */
-#define PLy_elog PLy_elog_impl
-#endif							/* HAVE__VA_ARGS */
 
 extern void PLy_elog_impl(int elevel, const char *fmt,...) pg_attribute_printf(2, 3);
 
-- 
2.18.0.rc2.dirty

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