Modified MidnightCommander Formula to support PROMPT_COMMAND shell variable

midnight-commander.rb

require 'formula'

class MidnightCommander < Formula
  homepage 'http://www.midnight-commander.org/'
  url 'http://www.midnight-commander.org/downloads/mc-4.8.10.tar.bz2',
      :using => CurlUnsafeDownloadStrategy
  mirror 'http://fossies.org/linux/misc/mc-4.8.10.tar.bz2'
  sha256 '5f4166fe78fbf4b42f51ed526ca7f79fea8c77d04355c2b97d4df2a6bd2a1b1a'

  depends_on 'pkg-config' => :build
  depends_on 'glib'
  depends_on 's-lang'
  depends_on 'libssh2'
  def patches
    DATA # http://www.midnight-commander.org/ticket/2027
  end

  def install
    system "./configure", "--disable-debug", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--without-x",
                          "--with-screen=slang",
                          "--enable-vfs-sftp"
    system "make install"
  end
end

__END__
diff -udpr src0/subshell.c src/subshell.c
--- src0/subshell.c	2009-12-30 21:58:49.000000000 +0300
+++ src/subshell.c	2010-02-14 15:47:15.000000000 +0300
@@ -372,7 +372,7 @@ init_subshell (void)
 {
     /* This must be remembered across calls to init_subshell() */
     static char pty_name[BUF_SMALL];
-    char precmd[BUF_SMALL];
+    char precmd[BUF_MEDIUM];

     switch (check_sid ()) {
     case 1:
@@ -482,7 +482,8 @@ init_subshell (void)
     switch (subshell_type) {
     case BASH:
 	g_snprintf (precmd, sizeof (precmd),
-		    " PROMPT_COMMAND='pwd>&%d;kill -STOP $$'\n",
+		    " if [ -n \"$PROMPT_COMMAND\" ]; then PROMPT_COMMAND=\"$PROMPT_COMMAND;\"; fi;"
+		    " PROMPT_COMMAND=\"$PROMPT_COMMAND pwd>&%d;kill -STOP \\$\\$\"\n",
 		    subshell_pipe[WRITE]);
 	break;

Patch Details: http://www.midnight-commander.org/ticket/2027
Local path: /usr/local/Library/Formula/midnight-commander.rb