libcircle: add develop version from git master branch (#14420)

* libcircle: add develop version from git master branch

* Update var/spack/repos/builtin/packages/libcircle/package.py

Co-Authored-By: Adam J. Stewart <ajstewart426@gmail.com>

* libcircle: flake8 fix i think

* libcircle: naming things

* libcircle: 

 my sacrifice to the flake8 gods

Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>

var/spack/repos/builtin/packages/libcircle/package.py

@@ -11,8 +11,17 @@ class Libcircle(AutotoolsPackage):
        using self-stabilizing work stealing."""
 
     homepage = "https://github.com/hpc/libcircle"
+    git      = "https://github.com/hpc/libcircle.git"
+    url      = "https://github.com/hpc/libcircle/releases/download/0.2.1-rc.1/libcircle-0.2.1-rc.1.tar.gz"
 
-    version('0.2.1-rc.1', sha256='5747f91cf4417023304dcc92fd07e3617ac712ca1eeb698880979bbca3f54865',
-            url='https://github.com/hpc/libcircle/releases/download/0.2.1-rc.1/libcircle-0.2.1-rc.1.tar.gz')
+    version('master', branch='master')
+    version('0.2.1-rc.1', sha256='5747f91cf4417023304dcc92fd07e3617ac712ca1eeb698880979bbca3f54865')
 
     depends_on('mpi')
+
+    @when('@master')
+    def autoreconf(self, spec, prefix):
+        with working_dir(self.configure_directory):
+            # Bootstrap with autotools
+            bash = which('bash')
+            bash('./autogen.sh')