make sisu: v2 require >=ruby1.8.7; v3 require >=ruby1.9.2

* bin/sisu bin/sisu3 modified accordingly
  note: there are issues with sisu and early versions of ruby1.9.2
  ruby1.9.2p0 is known to segfault on a number of operations
  ruby1.9.2p180 does not have these issues

* v3 includes changelog updates

* v2 includes changelog updates and version update 2.8.1

2 files changed, 31 insertions, 2 deletions

diff --git a/bin/sisu b/bin/sisu
index dd1db245..80eda718 100644
--- a/bin/sisu
+++ b/bin/sisu
@@ -2,7 +2,19 @@
 # coding: utf-8
 #SiSU: copyright (C) 1997 - 2011 Ralph Amissah; License GPL, see appended program information
 #raise "Please, use Ruby1.8 (1.8.4 or later), current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4' or RUBY_VERSION > '1.9'
-raise "Please, use Ruby1.8.4 or later, current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4'
+def check_sisu_stable_ruby_version?
+  rbv_sisu_stable='1.8.7'
+  if RUBY_VERSION < rbv_sisu_stable
+    raise "Please, use Ruby#{rbv_sisu_stable} or later, current Ruby #{RUBY_VERSION}"
+  end
+end
+def check_sisu_dev_ruby_version?
+  rbv_sisu_dev='1.9.2'
+  if RUBY_VERSION < rbv_sisu_dev
+    raise "Please, use Ruby#{rbv_sisu_dev} or later, current Ruby #{RUBY_VERSION}"
+  end
+end
+check_sisu_stable_ruby_version?
 $VERBOSE=nil
 $KCODE='u' if RUBY_VERSION < '1.9'
 argv=$*
@@ -10,8 +22,10 @@ SiSU_version_dir=case argv.inspect
 when /--v2/
   'v2'
 when /--v3/
+  check_sisu_dev_ruby_version?
   'v3'
 when /--dev/
+  check_sisu_dev_ruby_version?
   'v3'
 else
   'v2'
diff --git a/bin/sisu3 b/bin/sisu3
index ca5be5e7..03f41d6e 100644
--- a/bin/sisu3
+++ b/bin/sisu3
@@ -2,7 +2,19 @@
 # coding: utf-8
 #SiSU: copyright (C) 1997 - 2011 Ralph Amissah; License GPL, see appended program information
 #raise "Please, use Ruby1.8 (1.8.4 or later), current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4' or RUBY_VERSION > '1.9'
-raise "Please, use Ruby1.8.4 or later, current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4'
+def check_sisu_stable_ruby_version?
+  rbv_sisu_stable='1.8.7'
+  if RUBY_VERSION < rbv_sisu_stable
+    raise "Please, use Ruby#{rbv_sisu_stable} or later, current Ruby #{RUBY_VERSION}"
+  end
+end
+def check_sisu_dev_ruby_version?
+  rbv_sisu_dev='1.9.2'
+  if RUBY_VERSION < rbv_sisu_dev
+    raise "Please, use Ruby#{rbv_sisu_dev} or later, current Ruby #{RUBY_VERSION}"
+  end
+end
+check_sisu_stable_ruby_version?
 $VERBOSE=nil
 $KCODE='u' if RUBY_VERSION < '1.9'
 argv=$*
@@ -10,10 +22,13 @@ SiSU_version_dir=case argv.inspect
 when /--v2/
   'v2'
 when /--v3/
+  check_sisu_dev_ruby_version?
   'v3'
 when /--dev/
+  check_sisu_dev_ruby_version?
   'v3'
 else
+  check_sisu_dev_ruby_version?
   'v3'
 end
 SiSU_lib="sisu/#{SiSU_version_dir}"