gettext: Add Emacs support option

Closes #20313.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 28 insertions, 11 deletions

diff --git a/Library/Formula/gettext.rb b/Library/Formula/gettext.rb
index dc0a8ed71..cb8f41070 100644
--- a/Library/Formula/gettext.rb
+++ b/Library/Formula/gettext.rb
@@ -1,5 +1,14 @@
 require 'formula'
 
+class Emacs < Requirement
+  fatal true
+  satisfy { which('emacs') }
+
+  def message
+    "Emacs support requires Emacs to be installed."
+  end
+end
+
 class Gettext < Formula
   homepage 'http://www.gnu.org/software/gettext/'
   url 'http://ftpmirror.gnu.org/gettext/gettext-0.18.2.tar.gz'
@@ -15,8 +24,11 @@ class Gettext < Formula
   end
 
   option :universal
+  option 'with-emacs', 'Build with emacs support'
   option 'with-examples', 'Keep example files'
 
+  depends_on Emacs if build.include? "with-emacs"
+
   def patches
     unless build.include? 'with-examples'
       # Use a MacPorts patch to disable building examples at all,
@@ -29,17 +41,22 @@ class Gettext < Formula
     ENV.libxml2
     ENV.universal_binary if build.universal?
 
-    system "./configure", "--disable-dependency-tracking",
-                          "--disable-debug",
-                          "--prefix=#{prefix}",
-                          "--with-included-gettext",
-                          "--with-included-glib",
-                          "--with-included-libcroco",
-                          "--with-included-libunistring",
-                          "--without-emacs",
-                          # Don't use VCS systems to create these archives
-                          "--without-git",
-                          "--without-cvs"
+    args = ["--disable-dependency-tracking",
+            "--disable-debug",
+            "--prefix=#{prefix}",
+            "--with-included-gettext",
+            "--with-included-glib",
+            "--with-included-libcroco",
+            "--with-included-libunistring",
+            # Don't use VCS systems to create these archives
+            "--without-git",
+            "--without-cvs"]
+    if build.include? "with-emacs"
+      args << "--with-emacs"
+    else
+      args << "--without-emacs"
+    end
+    system "./configure", *args
     system "make"
     ENV.deparallelize # install doesn't support multiple make jobs
     system "make install"