From 4b75162b0e865316a2413731e97256d6f83dc0a2 Mon Sep 17 00:00:00 2001
From: Sven Fischer <sven@leiderfischer.de>
Date: Tue, 15 May 2012 17:50:57 +0200
Subject: [PATCH 1/2] Introduced a dependency mapping for != dependency

There exist gems in the wild that have a dependency !=
Example is sprocket gem (at least version 2.1.3). Use a mapping
that prevents dpkg to choke on != and appended it to the conflicts.
---
 lib/fpm/package/deb.rb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/fpm/package/deb.rb b/lib/fpm/package/deb.rb
index 006421f065..61d9d5660d 100644
--- a/lib/fpm/package/deb.rb
+++ b/lib/fpm/package/deb.rb
@@ -261,6 +261,13 @@ def fix_dependency(dep)
       nextversion[l-1] = 0
       nextversion = nextversion.join(".")
       return ["#{name} (>= #{version})", "#{name} (<< #{nextversion})"]
+    elsif (m = dep.match(/(\S+)\s+\(!= (.+)\)/))
+      # Convert 'foo (!= x)' to 'foo (>= x+1)'
+      name, version = m[1..2]
+      nextversion = version.split('.').collect { |v| v.to_i }
+      nextversion[-1] += 1
+      nextversion = nextversion.join(".")
+      return ["#{name} (>= #{nextversion})"]
     elsif (m = dep.match(/(\S+)\s+\(= (.+)\)/)) and
         self.attributes[:deb_ignore_iteration_in_dependencies?]
       # Convert 'foo (= x)' to 'foo (>= x)' and 'foo (<< x+1)'

From 0182d6f0ad15f1083b723451838c3b5f6b83680b Mon Sep 17 00:00:00 2001
From: Sven Fischer <sven@leiderfischer.de>
Date: Tue, 15 May 2012 20:18:19 +0200
Subject: [PATCH 2/2] Add != dependencies as Conflicts for debian packages

Added correct patch now.
---
 lib/fpm/package/deb.rb | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/fpm/package/deb.rb b/lib/fpm/package/deb.rb
index 61d9d5660d..89c3616dce 100644
--- a/lib/fpm/package/deb.rb
+++ b/lib/fpm/package/deb.rb
@@ -262,12 +262,9 @@ def fix_dependency(dep)
       nextversion = nextversion.join(".")
       return ["#{name} (>= #{version})", "#{name} (<< #{nextversion})"]
     elsif (m = dep.match(/(\S+)\s+\(!= (.+)\)/))
-      # Convert 'foo (!= x)' to 'foo (>= x+1)'
-      name, version = m[1..2]
-      nextversion = version.split('.').collect { |v| v.to_i }
-      nextversion[-1] += 1
-      nextversion = nextversion.join(".")
-      return ["#{name} (>= #{nextversion})"]
+      # Append this to conflicts
+      self.conflicts += [dep.gsub(/!=/,"=")]
+      return []
     elsif (m = dep.match(/(\S+)\s+\(= (.+)\)/)) and
         self.attributes[:deb_ignore_iteration_in_dependencies?]
       # Convert 'foo (= x)' to 'foo (>= x)' and 'foo (<< x+1)'