Add check for package compatibility

packages/sysstat.rb

@@ -4,6 +4,7 @@ class Sysstat < Package
   description 'The sysstat utilities are a collection of performance monitoring tools for Linux. These include sar, sadf, mpstat, iostat, tapestat, pidstat, cifsiostat and sa tools.'
   homepage 'http://sebastien.godard.pagesperso-orange.fr/'
   version '12.1.5'
+  compatibility 'all'
   source_url 'http://pagesperso-orange.fr/sebastien.godard/sysstat-12.1.5.tar.xz'
   source_sha256 'a496936bb3f5093d780a50735f00e39b0b7f3a688eb89051f2ef5f86739522c5'
 
@@ -20,20 +21,23 @@ class Sysstat < Package
      x86_64: '5aac1bfb1bdf0a8d3dbeb010f179bbddeac24134768755d9dc3ccad01fb26f24',
   })
 
-  def self.build
+  def self.patch
     system "sed -i 's/GRP=root/GRP=$(whoami)/' configure"
     system "sed -i 's/\"root\"/\"$(whoami)\"/g' configure"
     system "sed -i 's/root/$(whoami)/g' configure.in"
     system "sed -i 's/root/$(whoami)/g' sysstat-#{self.version}.spec"
+  end
+
+  def self.build
     system "./configure \
             --docdir=#{CREW_PREFIX}/doc \
             --infodir=#{CREW_PREFIX}/info \
-            --mandir=#{CREW_PREFIX}/man"
-    system "make"
+            --mandir=#{CREW_MAN_PREFIX}"
+    system 'make'
   end
 
   def self.install
-    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+    system 'make', "DESTDIR=#{CREW_DEST_DIR}", 'install'
   end
 end