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path: root/gnu/packages/patches/crossmap-allow-system-pysam.patch
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This patch modifies the build process such that the bundled copy of pysam does
not need to be built if CROSSMAP_USE_SYSTEM_PYSAM is set and the pysam module
can be imported.

Upstream has agreed to apply the patch in the next maintenance release of
crossmap.  The patch has already been uploaded to
http://sourceforge.net/projects/crossmap/files/patch/.

diff --git a/setup.py b/setup.py
--- a/setup.py	2015-02-26 15:28:49.771189185 +0100
+++ b/setup.py	2015-02-26 15:55:03.440327752 +0100
@@ -19,6 +19,15 @@
 except:
 	have_numpy = False
 
+try:
+	import pysam
+	if os.environ['CROSSMAP_USE_SYSTEM_PYSAM']:
+		have_pysam = True
+	else:
+		have_pysam = False
+except ImportError:
+	have_pysam = False
+
 if platform.system()=='Windows':
 	print >> sys.stderr, "Sorry, Windows platform is not supported!"
 	sys.exit()
@@ -165,49 +174,50 @@
 	
 	
 	#================= pysam samtools ====================
-	extensions.append(Extension(
-    	"pysam.csamtools",              
-		csamtools_sources + [ "lib/pysam/%s" % x for x in ("pysam_util.c", )] +\
-		glob.glob( os.path.join( "lib/samtools", "*.pysam.c" )) +\
-		os_c_files + \
-		glob.glob( os.path.join( "lib/samtools", "*", "*.pysam.c" ) ),
-		library_dirs=[],
-		include_dirs=[ "lib/samtools", "lib/pysam" ] + include_os,
-		libraries=[ "z", ],
-		language="c",
-		define_macros = [('_FILE_OFFSET_BITS','64'),('_USE_KNETFILE','')], 
-    ))
-
-	extensions.append(Extension(
-		"pysam.ctabix",                   
-		tabix_sources + [ "lib/pysam/%s" % x for x in ( "tabix_util.c", )] +\
-		os_c_files + \
-		glob.glob( os.path.join( "lib/tabix", "*.pysam.c" ) ),
-		library_dirs=[],
-		include_dirs=[ "lib/tabix", "lib/pysam" ] + include_os,
-		libraries=[ "z", ],
-		language="c",
-		define_macros = [('_FILE_OFFSET_BITS','64'),
-                     ('_USE_KNETFILE','')], 
-    ))
-
-	extensions.append(Extension(
-		"pysam.TabProxies",               
-		tabproxies_sources + os_c_files,
-		library_dirs=[],
-		include_dirs= include_os,
-		libraries=[ "z", ],
-		language="c",
-    ))
-
-	extensions.append(Extension(
-		"pysam.cvcf",                   
-		cvcf_sources + os_c_files,
-		library_dirs=[],
-		include_dirs= ["lib/tabix",] + include_os,
-		libraries=[ "z", ],
-		language="c",
-    ))
+        if not have_pysam:
+                extensions.append(Extension(
+                        "pysam.csamtools",              
+                        csamtools_sources + [ "lib/pysam/%s" % x for x in ("pysam_util.c", )] +\
+                        glob.glob( os.path.join( "lib/samtools", "*.pysam.c" )) +\
+                        os_c_files + \
+                        glob.glob( os.path.join( "lib/samtools", "*", "*.pysam.c" ) ),
+                        library_dirs=[],
+                        include_dirs=[ "lib/samtools", "lib/pysam" ] + include_os,
+                        libraries=[ "z", ],
+                        language="c",
+                        define_macros = [('_FILE_OFFSET_BITS','64'),('_USE_KNETFILE','')], 
+                ))
+
+                extensions.append(Extension(
+                        "pysam.ctabix",                   
+                        tabix_sources + [ "lib/pysam/%s" % x for x in ( "tabix_util.c", )] +\
+                        os_c_files + \
+                        glob.glob( os.path.join( "lib/tabix", "*.pysam.c" ) ),
+                        library_dirs=[],
+                        include_dirs=[ "lib/tabix", "lib/pysam" ] + include_os,
+                        libraries=[ "z", ],
+                        language="c",
+                        define_macros = [('_FILE_OFFSET_BITS','64'),
+                                         ('_USE_KNETFILE','')], 
+                ))
+
+                extensions.append(Extension(
+                        "pysam.TabProxies",               
+                        tabproxies_sources + os_c_files,
+                        library_dirs=[],
+                        include_dirs= include_os,
+                        libraries=[ "z", ],
+                        language="c",
+                ))
+
+                extensions.append(Extension(
+                        "pysam.cvcf",                   
+                        cvcf_sources + os_c_files,
+                        library_dirs=[],
+                        include_dirs= ["lib/tabix",] + include_os,
+                        libraries=[ "z", ],
+                        language="c",
+                ))
 
 
 	return extensions