pdfjam: add pdflatex Requirement

Fixes #13508.

1 files changed, 18 insertions, 0 deletions

diff --git a/Library/Formula/pdfjam.rb b/Library/Formula/pdfjam.rb
index ef5300bf6..6a48355ed 100644
--- a/Library/Formula/pdfjam.rb
+++ b/Library/Formula/pdfjam.rb
@@ -1,3 +1,19 @@
+class PdfLatexRequirement < Requirement
+  def message; <<-EOS.undent
+    pdfjam requires pdflatex to run. You can install this using MacTex:
+      http://tug.org/mactex/
+    EOS
+  end
+
+  def satisfied?
+    which 'pdflatex'
+  end
+
+  def fatal?
+    true
+  end
+end
+
 require 'formula'
 
 class Pdfjam < Formula
@@ -6,6 +22,8 @@ class Pdfjam < Formula
   md5 '7df075df7f129091f826275ce8c1f374'
   version '2.08'
 
+  depends_on PdfLatexRequirement.new
+
   def install
     bin.install Dir['bin/*']
     man.install 'man1'