xpdf: fix build of the actual xpdf tool

Tentatively fixes Homebrew/homebrew#10588.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/xpdf.rb

@@ -1,15 +1,34 @@
 require 'formula'
 
 class Xpdf < Formula
-  url 'ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.03.tar.gz'
   homepage 'http://www.foolabs.com/xpdf/'
+  url 'ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.03.tar.gz'
   md5 'af75f772bee0e5ae4a811ff9d03eac5a'
 
+  # see: http://gnats.netbsd.org/45562
+  def patches; DATA; end
+
   def install
-    system "./configure", "--disable-debug", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}",
-                          "--mandir=#{man}"
+    ENV.x11
+    ENV.append_to_cflags '-I/usr/X11/include -I/usr/X11/include/freetype2'
+
+    system "./configure", "--prefix=#{prefix}", "--mandir=#{man}"
     system "make"
     system "make install"
   end
 end
+
+__END__
+diff --git a/xpdf/XPDFViewer.cc b/xpdf/XPDFViewer.cc
+index 2de349d..e6ef7fa 100644
+--- a/xpdf/XPDFViewer.cc
++++ b/xpdf/XPDFViewer.cc
+@@ -1803,7 +1803,7 @@ void XPDFViewer::initToolbar(Widget parent) {
+   menuPane = XmCreatePulldownMenu(toolBar, "zoomMenuPane", args, n);
+   for (i = 0; i < nZoomMenuItems; ++i) {
+     n = 0;
+-    s = XmStringCreateLocalized(zoomMenuInfo[i].label);
++    s = XmStringCreateLocalized((char *)zoomMenuInfo[i].label);
+     XtSetArg(args[n], XmNlabelString, s); ++n;
+     XtSetArg(args[n], XmNuserData, (XtPointer)i); ++n;
+     sprintf(buf, "zoom%d", i);