[cbase] fix error on arm architecture (#1857)

* Update cbase.rb

* Update cbase.rb

* Update cbase.rb

packages/cbase.rb

@@ -3,20 +3,26 @@ require 'package'
 class Cbase < Package
   description 'cbase is a C library of useful functions that simplify systems software development on System V UNIX.'
   homepage 'http://www.hyperrealm.com/oss_cbase.shtml'
-  version '1.3.7-1'
+  version '1.3.7-2'
   source_url 'http://www.hyperrealm.com/packages/cbase-1.3.7.tar.gz'
   source_sha256 'c4d155686ac2e9d1480319de311967fadad745a6ab6971d53d495d9a9e52dc47'
 
   binary_url ({
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/cbase-1.3.7-1-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/cbase-1.3.7-1-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-       i686: '9ce31b80b473652f8da8ede23294d5a8c7fb4b4d9c678d9452a3f8d77a91a8a0',
-     x86_64: '2f504105cc4c0aef846e0d5fc272a7baf919517f40cc19a86e55b59c12ab0d61',
   })
 
+  depends_on 'expat'
+  
   def self.build
+    # fix error on arm architecture
+    case ARCH
+      when 'armv7l','aarch64'
+        Dir.chdir("lib") do
+          system "sed -i '376c if (&vp == NULL)' strings.c"  # change from   if(!vp)   to    if (&vp == NULL),  tested on armv7l   
+        end
+    end
+    
     system "./configure --prefix=#{CREW_PREFIX}"
     system "make"
   end