update gettext to 0.19.8.1 and add source compile method.

change to strip binary and libraries also.

packages/gettext.rb

 require 'package'
 
 class Gettext < Package
-  version '0.18.3.1'
-  binary_url ({
-    aarch64: 'https://dl.dropboxusercontent.com/s/wmfctz7x8bj6cwe/gettext-0.18.3.1-chromeos-armv7l.tar.xz',
-    armv7l:  'https://dl.dropboxusercontent.com/s/wmfctz7x8bj6cwe/gettext-0.18.3.1-chromeos-armv7l.tar.xz',
-    i686:    'https://dl.dropboxusercontent.com/s/xmsfr7q9r99dhcs/gettext-0.18.3.1-chromeos-i686.tar.gz?token_hash=AAGJo0pqudCOkGU3NHOcBuFG2zLwWpapNXLX-zUJLcS3aA&dl=1',
-    x86_64:  'https://dl.dropboxusercontent.com/s/nidj0ehxwserhz6/gettext-0.18.3.1-chromeos-x86_64.tar.gz?token_hash=AAFn-kdXlB23HDVDCKTn9n_U-i9LFNCIB6HU0jSUiJTctA&dl=1',
-  })
-  binary_sha1 ({
-    aarch64: '5224004048dd80bb523cd0091ad577b21448790b',
-    armv7l:  '5224004048dd80bb523cd0091ad577b21448790b',
-    i686:    '1ecbff59d6134c7f8804bcf18fb2b1b7a9a6d4c0',
-    x86_64:  '22174347defa4f034a360078c248a61710c5f854',
-  })
+  version '0.19.8.1'
+  source_url 'ftp://ftp.gnu.org/gnu/gettext/gettext-0.19.8.1.tar.xz'
+  source_sha1 'e0fe90ede22f7f16bbde7bdea791a835f2773fc9'
+
+  depends_on 'diffutils' => :build
+  depends_on 'ncurses'
+  depends_on 'libxml2'
+
+  def self.build
+    system "./configure", "--enable-shared", "--disable-static", "--with-pic"
+    system "make"
+    system "find . -name '*.so.*' -print | xargs strip -S"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install-strip"
+  end
+
+  def self.check
+    system "make", "check"
+  end
 end