From 23cfbaa371f82d0b4652c9e37189a2be82fa3d4c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADt=20Ondruch?= <vondruch@redhat.com>
Date: Thu, 25 Aug 2011 14:33:51 +0200
Subject: [PATCH] Allow to disable versioned paths.

---
 configure.in         | 11 +++++++++++
 lib/rdoc/ri/paths.rb |  4 ++--
 tool/mkconfig.rb     |  9 ++++++---
 tool/rbinstall.rb    |  2 +-
 version.c            | 10 ++++++++++
 5 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/configure.in b/configure.in
index f2d22ef..db3641b 100644
--- a/configure.in
+++ b/configure.in
@@ -3346,6 +3346,17 @@ else
 fi
 AC_SUBST(USE_RUBYGEMS)
 
+AC_ARG_ENABLE(versioned-paths,
+	AS_HELP_STRING([--disable-versioned-paths], [disable paths with version number]),
+	[enable_versioned_paths="$enableval"], [enable_versioned_paths=yes])
+if test x"$enable_versioned_paths" = xno; then
+    AC_DEFINE(DISABLE_VERSIONED_PATHS, 1)
+    USE_VERSIONED_PATHS=NO
+else
+    USE_VERSIONED_PATHS=YES
+fi
+AC_SUBST(USE_VERSIONED_PATHS)
+
 arch_hdrdir="${EXTOUT}/include/${arch}/ruby"
 AS_MKDIR_P("${arch_hdrdir}")
 config_h="${arch_hdrdir}/config.h"
diff --git a/lib/rdoc/ri/paths.rb b/lib/rdoc/ri/paths.rb
index a3c65bf..a4e8559 100644
--- a/lib/rdoc/ri/paths.rb
+++ b/lib/rdoc/ri/paths.rb
@@ -12,9 +12,9 @@ module RDoc::RI::Paths
   version = RbConfig::CONFIG['ruby_version']
 
   BASE    = if RbConfig::CONFIG.key? 'ridir' then
-              File.join RbConfig::CONFIG['ridir'], version
+              File.join [RbConfig::CONFIG['ridir'], RbConfig::CONFIG['USE_VERSIONED_PATHS'] == 'YES' ? version : nil].compact
             else
-              File.join RbConfig::CONFIG['datadir'], 'ri', version
+              File.join [RbConfig::CONFIG['datadir'], 'ri', RbConfig::CONFIG['USE_VERSIONED_PATHS'] == 'YES' ? version : nil].compact
             end
 
   homedir = begin
diff --git a/tool/mkconfig.rb b/tool/mkconfig.rb
index f9d97d3..d9e26c1 100755
--- a/tool/mkconfig.rb
+++ b/tool/mkconfig.rb
@@ -43,6 +43,7 @@ v_runtime = {}
 vars = {}
 continued_name = nil
 continued_line = nil
+path_version = "/$(ruby_version)"
 File.foreach "config.status" do |line|
   next if /^#/ =~ line
   name = nil
@@ -142,6 +143,8 @@ File.foreach "config.status" do |line|
     case name
     when "ruby_version"
       version = val[/\A"(.*)"\z/, 1]
+    when /^USE_VERSIONED_PATHS$/
+      path_version = nil if /NO/ =~ val
     end
   end
 #  break if /^CEOF/
@@ -207,15 +210,15 @@ end
 print(*v_fast)
 print(*v_others)
 print <<EOS
-  CONFIG["rubylibdir"] = "$(rubylibprefix)/$(ruby_version)"
+  CONFIG["rubylibdir"] = "$(rubylibprefix)#{path_version}"
   CONFIG["archdir"] = "$(rubylibdir)/$(arch)"
 EOS
 print <<EOS unless v_disabled["sitedir"]
-  CONFIG["sitelibdir"] = "$(sitedir)/$(ruby_version)"
+  CONFIG["sitelibdir"] = "$(sitedir)#{path_version}"
   CONFIG["sitearchdir"] = "$(sitelibdir)/$(sitearch)"
 EOS
 print <<EOS unless v_disabled["vendordir"]
-  CONFIG["vendorlibdir"] = "$(vendordir)/$(ruby_version)"
+  CONFIG["vendorlibdir"] = "$(vendordir)#{path_version}"
   CONFIG["vendorarchdir"] = "$(vendorlibdir)/$(sitearch)"
 EOS
 print <<EOS
diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index f5facca..17294a2 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -392,7 +392,7 @@ end
 
 install?(:doc, :rdoc) do
   if $rdocdir
-    ridatadir = File.join(CONFIG['ridir'], CONFIG['ruby_version'], "system")
+    ridatadir = File.join([CONFIG['ridir'], RbConfig::CONFIG['USE_VERSIONED_PATHS'] == 'YES' ? version : nil, "system"].compact)
     prepare "rdoc", ridatadir
     install_recursive($rdocdir, ridatadir, :mode => $data_mode)
   end
diff --git a/version.c b/version.c
index 26e275a..05e5069 100644
--- a/version.c
+++ b/version.c
@@ -39,9 +39,15 @@
 #define RUBY_VENDOR_LIB RUBY_LIB_PREFIX"/vendor_ruby"
 #endif
 
+#ifdef DISABLE_VERSIONED_PATHS
+#define RUBY_LIB                    RUBY_LIB_PREFIX
+#define RUBY_SITE_LIB2              RUBY_SITE_LIB
+#define RUBY_VENDOR_LIB2            RUBY_VENDOR_LIB
+#else
 #define RUBY_LIB                    RUBY_LIB_PREFIX  "/"RUBY_LIB_VERSION
 #define RUBY_SITE_LIB2              RUBY_SITE_LIB    "/"RUBY_LIB_VERSION
 #define RUBY_VENDOR_LIB2            RUBY_VENDOR_LIB  "/"RUBY_LIB_VERSION
+#endif
 #define RUBY_ARCHLIB                RUBY_LIB         "/"RUBY_ARCH
 #define RUBY_SITE_ARCHLIB           RUBY_SITE_LIB2   "/"RUBY_SITEARCH
 #define RUBY_VENDOR_ARCHLIB         RUBY_VENDOR_LIB2 "/"RUBY_SITEARCH
@@ -76,8 +82,10 @@ const char ruby_initial_load_paths[] =
     RUBY_SITE_THIN_ARCHLIB "\0"
 #endif
     RUBY_SITE_ARCHLIB "\0"
+#ifndef DISABLE_VERSIONED_PATHS
     RUBY_SITE_LIB "\0"
 #endif
+#endif
 
 #ifndef NO_RUBY_VENDOR_LIB
     RUBY_VENDOR_LIB2 "\0"
@@ -85,8 +93,10 @@ const char ruby_initial_load_paths[] =
     RUBY_VENDOR_THIN_ARCHLIB "\0"
 #endif
     RUBY_VENDOR_ARCHLIB "\0"
+#ifndef DISABLE_VERSIONED_PATHS
     RUBY_VENDOR_LIB "\0"
 #endif
+#endif
 
     RUBY_LIB "\0"
 #ifdef RUBY_THIN_ARCHLIB
-- 
1.8.0