gnu: metabat: Update to 2.11.1.

* gnu/packages/bioinformatics.scm (metabat): Update to 2.11.1.
[source]: Add patch to fix compilation.
[arguments]: Adjust regular expressions modifying 'SConstruct'.
* gnu/packages/patches/metabat-fix-compilation.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu/packages/patches/metabat-fix-compilation.patch

@@ -0,0 +1,39 @@
+This patch changes metabat so that (1) it is not build statically, (2) it uses
+shared libraries rather than static libraries where possible.
+
+diff --git a/SConstruct b/SConstruct
+index 69cdc0a..ac99bcb 100644
+--- a/SConstruct
++++ b/SConstruct
+@@ -26,8 +26,6 @@ debug = ARGUMENTS.get('DEBUG', None)
+ build_flags = ['-Wall', '-g', '-std=c++11', '-fopenmp']
+ link_flags = ['-lstdc++', '-lm', '-fopenmp']
+ 
+-if platform.platform(True, True).find('Darwin') == -1:
+-    link_flags.extend(['-static', '-static-libgcc', '-static-libstdc++'])
+ 
+ if debug is None:
+     build_flags.extend(['-O3', '-DNDEBUG', '-Wno-unknown-pragmas', '-Wno-deprecated-declarations', '-Wno-overflow', '-Wno-unused-variable'])
+@@ -110,17 +108,17 @@ def findStaticOrShared( lib, testPaths, static_source_list, link_flag_list, stat
+     for path in testPaths:
+         if not os.path.isdir(path):
+             continue
++        for testfile in ('%s/lib%s.so' % (path, lib), '%s/lib%s.dylib' % (path, lib)):
++            if os.path.isfile(testfile):
++                print "Found shared library %s as %s" % (lib, testfile)
++                link_flag_list.extend( ["-L%s" % (path), "-l%s" % (lib) ] )
++                return
+         for suffix in staticSuffixes:
+             testfile = '%s/lib%s%s' % (path, lib, suffix)
+             if os.path.isfile(testfile):
+                 static_source_list.append(testfile)
+                 print "Found static library %s as %s" % (lib, testfile)
+                 return
+-        for testfile in ('%s/lib%s.so' % (path, lib), '%s/lib%s.dylib' % (path, lib)):
+-            if os.path.isfile(testfile):
+-                print "Found shared library %s as %s" % (lib, testfile)
+-                link_flag_list.extend( ["-L%s" % (path), "-l%s" % (lib) ] )
+-                return
+     print "Could not find library for %s!!! Looked in %s" % (lib, testPaths)
+     return
+