Use perl in Git installation for openssl

Author: orgads

ext/tiny_tds/extconf.rb

@@ -151,6 +151,17 @@ def extract_file(file, target)
         end
       end
 
+      def execute
+        prev_path = ENV['PATH']
+        git_perl = 'C:/Program Files/Git/usr/bin'
+        if File.directory?(git_perl)
+          ENV['PATH'] = git_perl + ';' + ENV['PATH']
+          ENV['PERL'] = 'perl'
+        end
+        super
+        ENV['PATH'] = prev_path
+      end
+
       def configure
         config = if host=~/mingw/
           host=~/x86_64/ ? 'mingw64' : 'mingw'