diff --git a/Formula/fortune.rb b/Formula/fortune.rb
index bb714e1fc7..3352020580 100644
--- a/Formula/fortune.rb
+++ b/Formula/fortune.rb
@@ -14,14 +14,15 @@ class Fortune <Formula
   def install
     ENV.deparallelize
 
-    inreplace 'Makefile', 'FORTDIR=/usr/local/games', "FORTDIR=/usr/local/bin"
-    inreplace 'Makefile', '/usr/local', prefix
-    inreplace 'Makefile', 'CC=gcc', "CC=#{ENV.cc}"
-    # OS X only supports POSIX regexes
-    inreplace 'Makefile', 'REGEXDEFS=-DHAVE_REGEX_H -DBSD_REGEX', 'REGEXDEFS=-DHAVE_REGEX_H -DPOSIX_REGEX'
-
-    # Don't install offensive fortunes
-    inreplace 'Makefile', 'OFFENSIVE=1', 'OFFENSIVE=0' if ARGV.include? '--no-offensive'
+    inreplace 'Makefile' do |contents|
+      contents.change_make_var! 'FORTDIR', "/usr/local/bin" # indeed, correct
+      contents.gsub! '/usr/local', prefix
+      contents.change_make_var! 'CC', ENV.cc
+      # OS X only supports POSIX regexes
+      contents.change_make_var! 'REGEXDEFS', '-DHAVE_REGEX_H -DPOSIX_REGEX'
+      # Don't install offensive fortunes
+      contents.change_make_var! 'OFFENSIVE', '0' if ARGV.include? '--no-offensive'
+    end
 
     system "make install"
   end
diff --git a/Formula/frotz.rb b/Formula/frotz.rb
index 9a63ee8282..c872d6c63e 100644
--- a/Formula/frotz.rb
+++ b/Formula/frotz.rb
@@ -6,10 +6,11 @@ class Frotz <Formula
   @md5='efe51879e012b92bb8d5f4a82e982677'
 
   def install
-    inreplace "Makefile", "CC = gcc", ""
-    inreplace "Makefile", "OPTS = -O2", ""
-    inreplace "Makefile", "PREFIX = /usr/local", "PREFIX = #{prefix}"
-    inreplace "Makefile", "CONFIG_DIR = /usr/local/etc", ""
+    inreplace "Makefile" do |contents|
+      contents.remove_make_var! %w[CC OPTS]
+      contents.change_make_var! "PREFIX", prefix
+      contents.change_make_var! "CONFIG_DIR", etc
+    end
 
     system "make frotz"
     system "make install"
diff --git a/Formula/haproxy.rb b/Formula/haproxy.rb
index ed637ba5e2..a96740950d 100644
--- a/Formula/haproxy.rb
+++ b/Formula/haproxy.rb
@@ -6,13 +6,12 @@ class Haproxy <Formula
   homepage 'http://haproxy.1wt.eu'
 
   def install
-    inreplace 'Makefile', 'PREFIX = /usr/local', "PREFIX = #{prefix}"
-    inreplace 'Makefile', 'DOCDIR = $(PREFIX)/doc/haproxy', "DOCDIR = #{doc}"
-    # use our CC, LD, CFLAGS and LDFLAGS
-    inreplace 'Makefile', 'LDFLAGS = $(ARCH_FLAGS) -g', ''
-    inreplace 'Makefile', 'CFLAGS = $(ARCH_FLAGS) $(CPU_CFLAGS) $(DEBUG_CFLAGS)', ''
-    inreplace 'Makefile', 'CC = gcc', ''
-    inreplace 'Makefile', 'LD = $(CC)', ''
+    inreplace 'Makefile' do |contents|
+      contents.change_make_var! 'PREFIX', prefix
+      contents.change_make_var! 'DOCDIR', doc
+      # use our CC, LD, CFLAGS and LDFLAGS
+      contents.remove_make_var! %w[LDFLAGS CFLAGS CC LD]
+    end
 
     # We build generic since the Makefile.osx doesn't appear to work
     system "make", "TARGET=generic"
diff --git a/Formula/mod_wsgi.rb b/Formula/mod_wsgi.rb
index 3f0cd4d59e..d57afc5e44 100644
--- a/Formula/mod_wsgi.rb
+++ b/Formula/mod_wsgi.rb
@@ -12,29 +12,18 @@ class ModWsgi <Formula
   end
 
   def install
-    FileUtils.mv 'LICENCE', 'LICENSE'
-    system "./configure --prefix='#{prefix}' --disable-debug --disable-dependency-tracking"
+    system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking"
 
-    # The arch flags should match your Python's arch flags.
-    archs = arch_for_command "`which python`"
+    archs = archs_for_command("python").collect{ |arch| "-arch #{arch}" }
     
-    comp_flags = ''
-    link_flags = ''
-    archs.each do |a|
-      comp_flags += " -Wc,'-arch #{a}'"
-      link_flags += " -arch #{a}"
+    inreplace 'Makefile' do |s|
+      s.gsub! "-Wc,'-arch ppc7400' -Wc,'-arch ppc64' -Wc,'-arch i386' -Wc,'-arch x86_64'",
+              archs.collect{ |a| "-Wc,'#{a}'" }.join(' ')
+      s.gsub! "-arch ppc7400 -arch ppc64 -arch i386 -arch x86_64",
+              archs*' '
+      # --libexecdir parameter to ./configure isn't changing this, so cram it in
+      s.change_make_var! "LIBEXECDIR", libexec
     end
-    
-    inreplace 'Makefile',
-      "-Wc,'-arch ppc7400' -Wc,'-arch ppc64' -Wc,'-arch i386' -Wc,'-arch x86_64'",
-      "#{comp_flags}"
- 
-    inreplace 'Makefile',
-      "-arch ppc7400 -arch ppc64 -arch i386 -arch x86_64",
-      "#{link_flags}"
-    
-    # --libexecdir parameter to ./configure isn't changing this, so cram it in
-    inreplace 'Makefile', "LIBEXECDIR = /usr/libexec/apache2", "LIBEXECDIR = #{libexec}"
 
     system "make install"
   end
diff --git a/Formula/pngcrush.rb b/Formula/pngcrush.rb
index decc007ffa..682cd8200a 100644
--- a/Formula/pngcrush.rb
+++ b/Formula/pngcrush.rb
@@ -7,10 +7,9 @@ class Pngcrush <Formula
 
   def install
     # use our CFLAGS, LDFLAGS, CC, and LD
-    inreplace 'Makefile', 'CFLAGS = -I. -O3 -fomit-frame-pointer -Wall -Wshadow', ''
-    inreplace 'Makefile', 'LDFLAGS =', ''
-    inreplace 'Makefile', 'CC = gcc', ''
-    inreplace 'Makefile', 'LD = gcc', ''
+    inreplace 'Makefile' do |contents|
+      contents.remove_make_var! %w[CFLAGS LDFLAGS CC LD]
+    end
 
     system "make"
     bin.install 'pngcrush'
diff --git a/Formula/rabbitmq.rb b/Formula/rabbitmq.rb
index 416c4ddfd6..b06a9cdb54 100644
--- a/Formula/rabbitmq.rb
+++ b/Formula/rabbitmq.rb
@@ -21,15 +21,14 @@ class Rabbitmq <Formula
     (var + "log" + "couchdb").mkpath
 
     %w{rabbitmq-server rabbitmq-multi rabbitmqctl rabbitmq-env}.each do |script|
-      inreplace sbin+script, '/etc/rabbitmq', "#{etc}/rabbitmq"
-      inreplace sbin+script, '/var/log/rabbitmq', "#{var}/log/rabbitmq"
-      inreplace sbin+script, '/var/lib/rabbitmq', "#{var}/lib/rabbitmq"
+      inreplace sbin+script do |contents|
+        contents.gsub! '/etc/rabbitmq', "#{etc}/rabbitmq"
+        contents.gsub! '/var/((log|lib)/rabbitmq)', "#{var}/\1"
+      end
     end
 
-    %w{rabbitmq-env}.each do |script|
-      # RabbitMQ Erlang binaries are installed in lib/rabbitmq/erlang/lib/rabbitmq-x.y.z/ebin
-      # therefore need to add this path for erl -pa
-      inreplace sbin+script, '${SCRIPT_DIR}/..', "#{target_dir}"
-    end
+    # RabbitMQ Erlang binaries are installed in lib/rabbitmq/erlang/lib/rabbitmq-x.y.z/ebin
+    # therefore need to add this path for erl -pa
+    inreplace sbin+'rabbitmq-env', '${SCRIPT_DIR}/..', "#{target_dir}"
   end
 end
diff --git a/Formula/uwsgi.rb b/Formula/uwsgi.rb
index 3228c178d9..977dd5c9b2 100644
--- a/Formula/uwsgi.rb
+++ b/Formula/uwsgi.rb
@@ -5,19 +5,24 @@ class Uwsgi <Formula
   homepage 'http://projects.unbit.it/uwsgi/'
   md5 'dd72040daea5a9ee982f3b3b98946ed9'
 
+  def python_archs
+    archs_for_command("python").collect{ |arch| "-arch #{arch}" }.join(' ')
+  end
+
+  def python_version
+    `python -c "import sys; print '%s.%s' % sys.version_info[:2]"`.chomp
+  end
+
   def install
-    # Getting the current Python version to determine pythonX.Y-config
-    py_version = `python -c "import sys; print '%s.%s' % sys.version_info[:2]"`.chomp
-    # The arch flags should match your Python's arch flags.
-    archs = arch_for_command "`which python`"
-    arch_flags = ''
-    archs.each do |a|
-      arch_flags += " -arch #{a}"
+    mv 'Makefile.OSX.ub.Py25', 'Makefile'
+
+    inreplace "Makefile" do |s|
+      s.gsub! "python2.5-config", "python#{ python_version }-config"
+      # The arch flags should match your Python's arch flags
+      s.gsub! "-arch ppc -arch i386", python_archs
     end
-    FileUtils.mv 'Makefile.OSX.ub.Py25', 'Makefile.OSX'
-    inreplace "Makefile.OSX", "python2.5-config", "python#{py_version}-config"
-    inreplace "Makefile.OSX", "-arch ppc -arch i386", "#{arch_flags}"
-    system "make -f Makefile.OSX"
+
+    system "make all"
     bin.install "uwsgi"
   end
 end
diff --git a/Formula/xmlstarlet.rb b/Formula/xmlstarlet.rb
index ca99a340c2..6e0cae1bf2 100644
--- a/Formula/xmlstarlet.rb
+++ b/Formula/xmlstarlet.rb
@@ -7,9 +7,11 @@ class Xmlstarlet <Formula
 
   def install
     # thanks, xmlstarlet but OS X doesn't have the static versions
-    inreplace 'configure', '${LIBXML_PREFIX}/lib/libxml2.a', '-lxml2'
-    inreplace 'configure', '${LIBXSLT_PREFIX}/lib/libxslt.a', '-lxslt'
-    inreplace 'configure', '${LIBXSLT_PREFIX}/lib/libexslt.a', '-lexslt'
+    inreplace 'configure' do |s|
+      s.gsub! '${LIBXML_PREFIX}/lib/libxml2.a', '-lxml2'
+      s.gsub! '${LIBXSLT_PREFIX}/lib/libxslt.a', '-lxslt'
+      s.gsub! '${LIBXSLT_PREFIX}/lib/libexslt.a', '-lexslt'
+    end
 
     system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking"
     system "make"
diff --git a/Formula/xu4.rb b/Formula/xu4.rb
index bf9e472979..afff4e2c14 100644
--- a/Formula/xu4.rb
+++ b/Formula/xu4.rb
@@ -26,14 +26,13 @@ class Xu4 <Formula
       # ...so we can copy the ObjC main files.
       `cp -R #{sdl_prefix}/libexec/* macosx`
       
-      inreplace "Makefile.macosx", "WHICH_FRAMEWORK=10.4u", "WHICH_FRAMEWORK=#{MACOS_VERSION}"
-      inreplace "Makefile.macosx", "ARCHES=-arch i386 -arch ppc", "ARCHES="
-      inreplace "Makefile.macosx",
-        "BUNDLE_CONTENTS=../../xu4.app/Contents",
-        "BUNDLE_CONTENTS=xu4.app/Contents"
-
-      inreplace "Makefile.macosx", "../../ultima4.zip", "../ultima4-1.01.zip"
-      inreplace "Makefile.macosx", "../../u4upgrad.zip", "../u4upgrad.zip"
+      inreplace "Makefile.macosx" do |s|
+        s.change_make_var! "WHICH_FRAMEWORK", MACOS_VERSION
+        s.remove_make_var! "ARCHES"
+        s.change_make_var! "BUNDLE_CONTENTS", "xu4.app/Contents"
+        s.gsub! "../../ultima4.zip", "../ultima4-1.01.zip"
+        s.gsub! "../../u4upgrad.zip", "../u4upgrad.zip"
+      end
       
       system "make -f Makefile.macosx"
       system "make -f Makefile.macosx install"