Merge pull request #2548 from jedwards4b/configure_clean_location

clean should not look for mpilibs
configure --clean shouldn't need to figure out what mpi library it needs.

Test suite: by hand configure --clean on cheyenne
Test baseline:
Test namelist changes:
Test status: [bit for bit, roundoff, climate changing]

Fixes #2542

User interface changes?:

Update gh-pages html (Y/N)?:

Code review:mnlevy1981

tools/configure

@@ -108,6 +108,19 @@ def parse_command_line(args):
            % compiler)
     opts['compiler'] = compiler
     opts['os'] = machobj.get_value('OS')
+
+    if args.clean:
+        files = ["Macros.make", "Macros.cmake", "env_mach_specific.xml", ".env_mach_specific.sh",
+                 ".env_mach_specific.csh", "Depends.%s"%compiler, "Depends.%s"%args.machine,
+                  "Depends.%s.%s"%(args.machine,compiler)]
+        for file_ in files:
+            if os.path.isfile(file_):
+                logger.warn("Removing file %s"%file_)
+                os.remove(file_)
+        if argcnt == 2:
+            opts['clean_only'] = True
+            return opts
+
     # Set MPI library.
     if args.mpilib is not None:
         mpilib = args.mpilib
@@ -134,17 +147,6 @@ def parse_command_line(args):
     opts['debug'] = debug
 
 
-    if args.clean:
-        files = ["Macros.make", "Macros.cmake", "env_mach_specific.xml", ".env_mach_specific.sh",
-                 ".env_mach_specific.csh", "Depends.%s"%compiler, "Depends.%s"%args.machine,
-                  "Depends.%s.%s"%(args.machine,compiler)]
-        for file_ in files:
-            if os.path.isfile(file_):
-                logger.warn("Removing file %s"%file_)
-                os.remove(file_)
-        if argcnt == 2:
-            opts['clean_only'] = True
-
     return opts
 
 def _main():