diff --git a/auto/bin/make_def_fun.pl b/auto/bin/make_def_fun.pl
index d6915e8..40e67d5 100755
--- a/auto/bin/make_def_fun.pl
+++ b/auto/bin/make_def_fun.pl
@@ -30,8 +30,6 @@ if (@ARGV)
 	foreach my $ext (sort @extlist)
 	{
 		my ($extname, $exturl, $extstring, $types, $tokens, $functions, $exacts) = parse_ext($ext);
-		print "\n#if !defined(GLEW_SUBSET) || defined(GLEW_SUBSET_$extname)\n";
 		output_decls($functions, \&make_pfn_decl);
-		print "\n#endif /* GLEW_SUBSET_$extname */\n";
 	}
 }
diff --git a/auto/bin/make_header.pl b/auto/bin/make_header.pl
index 5ee101a..934ef77 100755
--- a/auto/bin/make_header.pl
+++ b/auto/bin/make_header.pl
@@ -55,15 +55,12 @@ if (@ARGV)
 		my ($extname, $exturl, $extstring, $types, $tokens, $functions, $exacts) = parse_ext($ext);
 
 		make_separator($extname);
-		print "#ifndef $extname\n";
+		print "#ifndef $extname\n#define $extname 1\n";
 		output_tokens($tokens, \&make_define);
 		output_types($types, \&make_type);
 		output_exacts($exacts, \&make_exact);
 		output_decls($functions, \&make_pfn_type);
-		print "\n#if !defined(GLEW_SUBSET) || defined(GLEW_SUBSET_$extname)\n";
-		print "#define $extname 1\n";
 		output_decls($functions, \&make_pfn_alias);
-		print "\n#endif /* GLEW_SUBSET_$extname */\n";
 
 		my $extvar = $extname;
 		$extvar =~ s/GL(X*)_/GL$1EW_/;
diff --git a/auto/bin/make_struct_fun.pl b/auto/bin/make_struct_fun.pl
index 139ad18..c885960 100755
--- a/auto/bin/make_struct_fun.pl
+++ b/auto/bin/make_struct_fun.pl
@@ -31,8 +31,6 @@ if (@ARGV)
 	foreach my $ext (sort @extlist)
 	{
 		my ($extname, $exturl, $extstring, $types, $tokens, $functions, $exacts) = parse_ext($ext);
-		print "\n#if !defined(GLEW_SUBSET) || defined(GLEW_SUBSET_$extname)\n";
 		output_decls($functions, \&make_pfn_decl);
-		print "\n#endif /* GLEW_SUBSET_$extname */\n";
 	}
 }
diff --git a/auto/src/glew_head.h b/auto/src/glew_head.h
index e54d640..26b8808 100644
--- a/auto/src/glew_head.h
+++ b/auto/src/glew_head.h
@@ -158,20 +158,6 @@ typedef _W64 int ptrdiff_t;
 
 #endif /* _WIN32 */
 
-/* GLEW depends on extension string entry points for internal purposes */
-
-#ifdef GLEW_SUBSET
-#ifndef GLEW_SUBSET_WGL_ARB_extensions_string
-#define GLEW_SUBSET_WGL_ARB_extensions_string
-#endif
-#ifndef GLEW_SUBSET_WGL_EXT_extensions_string
-#define GLEW_SUBSET_WGL_EXT_extensions_string
-#endif
-#ifndef GLEW_SUBSET_GLX_VERSION_1_2
-#define GLEW_SUBSET_GLX_VERSION_1_2
-#endif
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif