gtk-vnc 0.5.4 (new formula)

Signed-off-by: You-Sheng Yang (楊有勝) <vicamo@gmail.com>

Closes Homebrew/homebrew#48814.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/gtk-vnc.rb

@@ -0,0 +1,81 @@
+class GtkVnc < Formula
+  desc "VNC viewer widget for GTK."
+  homepage "https://wiki.gnome.org/Projects/gtk-vnc"
+  url "https://download.gnome.org/sources/gtk-vnc/0.5/gtk-vnc-0.5.4.tar.xz"
+  sha256 "488aa97a76ce6868160699cd45d4a0ee0fe6f0ad4631737c6ddd84450f6c9ce7"
+
+  depends_on "gettext" => :build
+  depends_on "gnutls"
+  depends_on "gtk+3"
+  depends_on "intltool" => :build
+  depends_on "libgcrypt"
+  depends_on "libtool" => :build
+  depends_on "pkg-config" => :build
+
+  depends_on "gobject-introspection" => :optional
+  depends_on "pulseaudio" => :optional
+  depends_on "vala" => :optional
+
+  # Fix build failure with xcode 7.1 or older.
+  # Upstream bug: https://bugzilla.gnome.org/show_bug.cgi?id=602371
+  patch :DATA if MacOS.version < :el_capitan
+
+  def install
+    args = %W[
+      --prefix=#{prefix}
+      --with-gtk=3.0
+      --with-examples
+      --with-python
+    ]
+
+    args << "--enable-introspection" if build.with? "gobject-introspection"
+    args << "--enable-pulseaudio" if build.with? "pulseaudio"
+    if build.with? "vala"
+      args << "--enable-vala"
+    else
+      args << "--disable-vala"
+    end
+
+    # fix "The deprecated ucontext routines require _XOPEN_SOURCE to be defined"
+    ENV.append "CPPFLAGS", "-D_XOPEN_SOURCE=600"
+    # for MAP_ANON
+    ENV.append "CPPFLAGS", "-D_DARWIN_C_SOURCE"
+
+    system "./configure", *args
+
+    system "make"
+    system "make", "install"
+  end
+
+  test do
+    system "#{bin}/gvncviewer", "--help-all"
+  end
+end
+
+__END__
+diff --git a/src/continuation.h b/src/continuation.h
+index 46f7a71..1b97207 100644
+--- a/src/continuation.h
++++ b/src/continuation.h
+@@ -21,6 +21,7 @@
+ #ifndef _CONTINUATION_H_
+ #define _CONTINUATION_H_
+
++#include <sys/types.h>
+ #include <ucontext.h>
+
+ struct continuation
+diff --git a/src/coroutine_ucontext.c b/src/coroutine_ucontext.c
+index 8fe650e..600f726 100644
+--- a/src/coroutine_ucontext.c
++++ b/src/coroutine_ucontext.c
+@@ -63,6 +63,9 @@ int coroutine_init(struct coroutine *co)
+     co->cc.stack_size = co->stack_size;
+     co->cc.stack = mmap(0, co->stack_size,
+                         PROT_READ | PROT_WRITE,
++#if !defined(MAP_ANONYMOUS)
++#  define MAP_ANONYMOUS MAP_ANON
++#endif
+                         MAP_PRIVATE | MAP_ANONYMOUS,
+                         -1, 0);
+     if (co->cc.stack == MAP_FAILED)