gpac: lowercase exec, add optional deps

Build gpac's executables with lowercase filenames (e.g. mp4box instead
of MP4Box) Also document optional dependencies and update treatment of
ffmpeg and openjpeg dependencies when building HEAD.

Closes #8432.

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

1 files changed, 28 insertions, 5 deletions

diff --git a/Library/Formula/gpac.rb b/Library/Formula/gpac.rb
index 2eb8afe4d..cea9fb4dc 100644
--- a/Library/Formula/gpac.rb
+++ b/Library/Formula/gpac.rb
@@ -16,16 +16,39 @@ class Gpac < Formula
   md5 '755e8c438a48ebdb13525dd491f5b0d1'
   head 'https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac', :using => :svn
 
+  depends_on 'a52dec' => :optional
+  depends_on 'jpeg' => :optional
+  depends_on 'faad2' => :optional
+  depends_on 'libogg' => :optional
+  depends_on 'libvorbis' => :optional
+  depends_on 'mad' => :optional
   depends_on 'sdl' => :optional
+  depends_on 'theora' => :optional
+  
+  depends_on 'ffmpeg' => :optional if ARGV.build_head?
+  depends_on 'openjpeg' => :optional if ARGV.build_head?
 
   def install
     ENV.deparallelize
+    args = ["--disable-wx",
+            "--prefix=#{prefix}",
+            "--mandir=#{man}",
+            # Force detection of X libs on 64-bit kernel
+            "--extra-ldflags=-L/usr/X11/lib"]
+    args << "--use-ffmpeg=no" unless ARGV.build_head?
+    args << "--use-openjpeg=no" unless ARGV.build_head?
+
     system "chmod +x configure"
-    system "./configure", "--disable-wx", "--use-ffmpeg=no",
-                          "--prefix=#{prefix}",
-                          "--mandir=#{man}",
-                          # Force detection of X libs on 64-bit kernel
-                          "--extra-ldflags=-L/usr/X11/lib"
+    system "./configure", *args
+                          
+    system "chmod", "+rw", "Makefile"
+    ["MP4Box","MP4Client"].each do |name|
+      filename = "applications/#{name}/Makefile"
+      system "chmod", "+rw", filename
+      inreplace filename, name, name.downcase
+      inreplace "Makefile", name, name.downcase
+    end
+
     system "make"
     system "make install"
   end