From f201bfb9980c9e1f1b4d2e8d9de8e13da4f49386 Mon Sep 17 00:00:00 2001
From: Todd Gamblin <tgamblin@llnl.gov>
Date: Wed, 4 Nov 2015 17:43:22 -0800
Subject: Modified bzip2 package to work properly on macs.

---
 var/spack/packages/bzip2/package.py | 58 ++++++++++++++++++++++++++-----------
 1 file changed, 41 insertions(+), 17 deletions(-)

diff --git a/var/spack/packages/bzip2/package.py b/var/spack/packages/bzip2/package.py
index d88336664d..638ba1fa4d 100644
--- a/var/spack/packages/bzip2/package.py
+++ b/var/spack/packages/bzip2/package.py
@@ -1,36 +1,60 @@
 from spack import *
-from glob import glob
 
 class Bzip2(Package):
     """bzip2 is a freely available, patent free high-quality data
        compressor. It typically compresses files to within 10% to 15%
        of the best available techniques (the PPM family of statistical
        compressors), whilst being around twice as fast at compression
-       and six times faster at decompression."""
+       and six times faster at decompression.
+
+    """
     homepage = "http://www.bzip.org"
     url      = "http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz"
 
     version('1.0.6', '00b516f4704d4a7cb50a1d97e6e8e15b')
 
-    def install(self, spec, prefix):
-        # No configure system -- have to filter the makefile for this package.
-        filter_file(r'CC=gcc', 'CC=cc', 'Makefile', string=True)
 
+    def patch(self):
+        mf = FileFilter('Makefile-libbz2_so')
+        mf.filter(r'^CC=gcc', 'CC=cc')
+
+        # Below stuff patches the link line to use RPATHs on Mac OS X.
+        if 'darwin' in self.spec.architecture:
+            v = self.spec.version
+            v1, v2, v3 = (v.up_to(i) for i in (1,2,3))
+
+            mf.filter('$(CC) -shared -Wl,-soname -Wl,libbz2.so.{0} -o libbz2.so.{1} $(OBJS)'.format(v2, v3),
+                      '$(CC) -dynamiclib -Wl,-install_name -Wl,@rpath/libbz2.{0}.dylib -current_version {1} -compatibility_version {2} -o libbz2.{3}.dylib $(OBJS)'.format(v1, v2, v3, v3), string=True)
+
+            mf.filter('$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.{0}'.format(v3),
+                      '$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.{0}.dylib'.format(v3), string=True)
+            mf.filter('rm -f libbz2.so.{0}'.format(v2),
+                      'rm -f libbz2.{0}.dylib'.format(v2), string=True)
+            mf.filter('ln -s libbz2.so.{0} libbz2.so.{1}'.format(v3, v2),
+                      'ln -s libbz2.{0}.dylib libbz2.{1}.dylib'.format(v3, v2), string=True)
+
+
+    def install(self, spec, prefix):
         make('-f', 'Makefile-libbz2_so')
         make('clean')
         make("install", "PREFIX=%s" % prefix)
 
-        bzip2_exe = join_path(prefix.bin, 'bzip2')
-        install('bzip2-shared', bzip2_exe)
-        for i, libfile in enumerate(glob('libbz2.so*')):
-            install(libfile, prefix.lib)
-            if i == 0:
-                symlink(join_path(prefix.lib, libfile), join_path(prefix.lib, 'libbz2.so'))
+        install('bzip2-shared', join_path(prefix.bin, 'bzip2'))
+
+        v1, v2, v3 = (self.spec.version.up_to(i) for i in (1,2,3))
+        if 'darwin' in self.spec.architecture:
+            lib = 'libbz2.dylib'
+            lib1, lib2, lib3 = ('libbz2.{0}.dylib'.format(v) for v in (v1, v2, v3))
+        else:
+            lib = 'libbz2.so'
+            lib1, lib2, lib3 = ('libbz2.so.{0}'.format(v) for v in (v1, v2, v3))
 
-        bunzip2 = join_path(prefix.bin, 'bunzip2')
-        remove(bunzip2)
-        symlink(bzip2_exe, bunzip2)
+        install(lib3, join_path(prefix.lib, lib3))
+        with working_dir(prefix.lib):
+            for l in (lib, lib1, lib2):
+                symlink(lib3, l)
 
-        bzcat   = join_path(prefix.bin, 'bzcat')
-        remove(bzcat)
-        symlink(bzip2_exe, bzcat)
+        with working_dir(prefix.bin):
+            force_remove('bunzip2', 'bzcat')
+            symlink('bzip2', 'bunzip2')
+            symlink('bzip2', 'bzcat')
-- 
cgit v1.2.3-60-g2f50