ncrack: disable openssl header check

Fixes Homebrew/homebrew#23160.

Formula/ncrack.rb

@@ -6,8 +6,10 @@ class Ncrack < Formula
   sha256 'f8bd7e0ef68559490064ec0a5f139b2b9c49aeaf9f6323e080db9ff344c87603'
 
   def install
+    # --without-openssl-header-check is necessary because Apple bumps
+    # openssl versions in security updates, but never updates the headers
     system "./configure", "--disable-debug", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}"
+                          "--prefix=#{prefix}", "--without-openssl-header-check"
     system "make"
     system "make install"
   end

Formula/nginx.rb

@@ -2,12 +2,12 @@ require 'formula'
 
 class Nginx < Formula
   homepage 'http://nginx.org/'
-  url 'http://nginx.org/download/nginx-1.4.3.tar.gz'
-  sha1 '8d0c34c84ce6dd8ba4442889e8f2599044c90930'
+  url 'http://nginx.org/download/nginx-1.4.2.tar.gz'
+  sha1 '8f006dc773840b6624a137a584ff8850d5155e3f'
 
   devel do
-    url 'http://nginx.org/download/nginx-1.5.6.tar.gz'
-    sha1 '24d84eccc7fecd98d19330ef708d3ea29031abc7'
+    url 'http://nginx.org/download/nginx-1.5.5.tar.gz'
+    sha1 '8526d41cdabcd40d4ffa5ae12c8a2cc325255431'
   end
 
   head 'http://hg.nginx.org/nginx/', :using => :hg