mpifileutils: roll back to dtcmp v1.0.3, add option to build master branch (#7949)

* mpifileutils: roll back to dtcmp v1.0.3 due to API change, add option to build master branch

* add comment to explain why certain dtcmp is required, rename version for git branch

* dtcmp v1.0.2 is missing github tarball

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

@@ -38,13 +38,18 @@ class Mpifileutils(AutotoolsPackage):
     homepage = "https://github.com/hpc/mpifileutils"
     url      = "https://github.com/hpc/mpifileutils/releases/download/v0.6/mpifileutils-0.6.tar.gz"
 
+    version('develop', git='https://github.com/hpc/mpifileutils.git')
     version('0.7', 'c081f7f72c4521dddccdcf9e087c5a2b')
     version('0.6', '620bcc4966907481f1b1a965b28fc9bf')
 
     depends_on('mpi')
     depends_on('libcircle')
     depends_on('lwgrp')
-    depends_on('dtcmp')
+
+    # need precise version of dtcmp, since DTCMP_Segmented_exscan added
+    # in v1.0.3 but renamed in v1.1.0 and later
+    depends_on('dtcmp@1.0.3')
+
     depends_on('libarchive')
 
     variant('xattr', default=True,