nspr 4.9.3

- Upgrade to 4.9.3.
- Remove the hand made `nspr.pc` that is created automatically now.
- Add flags to enable pthreads and ipv6.
- Remove flag to enable optimize, because Homebrew does that.
- Works with superenv on 10.8.2.

Closes Homebrew/homebrew#16047.

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

Formula/nspr.rb

@@ -2,8 +2,8 @@ require 'formula'
 
 class Nspr < Formula
   homepage 'http://www.mozilla.org/projects/nspr/'
-  url 'http://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v4.8.8/src/nspr-4.8.8.tar.gz'
-  sha256 '92f3f4ded2ee313e396c180d5445cc3c718ff347d86c06b7bf14a1b5e049d4c9'
+  url 'https://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v4.9.3/src/nspr-4.9.3.tar.gz'
+  sha256 '9ca3f30b5ae6784f9820b32939284a7f14f67230a916c5752acd8ddace72f3c5'
 
   def install
     ENV.deparallelize
@@ -13,30 +13,20 @@ class Nspr < Formula
       target_frameworks = (Hardware.is_32_bit? or MacOS.version == :leopard) ? "-framework Carbon" : ""
       inreplace "pr/src/Makefile.in", "-framework CoreServices -framework CoreFoundation", target_frameworks
 
-      args = ["--prefix=#{prefix}", "--disable-debug", "--enable-strip", "--enable-optimize"]
+      args = %W[
+        --disable-debug
+        --prefix=#{prefix}
+        --enable-strip
+        --enable-pthreads
+        --enable-ipv6
+      ]
       args << "--enable-64bit" if MacOS.prefer_64_bit?
       system "./configure", *args
-
       # Remove the broken (for anyone but Firefox) install_name
       inreplace "config/autoconf.mk", "-install_name @executable_path/$@ ", "-install_name #{lib}/$@ "
 
       system "make"
       system "make install"
-      (lib+'pkgconfig/nspr.pc').write pkg_file
     end
   end
-
-  def pkg_file; <<-EOF
-prefix=#{HOMEBREW_PREFIX}
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include/nspr
-
-Name: NSPR
-Description: Netscape Portable Runtime
-Version: 4.8.8
-Libs: -L${libdir} -lplds4 -lplc4 -lnspr4
-Cflags: -I${includedir}
-EOF
-  end
 end