Fixed flags bug in icon-ham package

repos/c2sm/packages/icon-ham/package.py

@@ -1,5 +1,6 @@
 from spack import *
 from spack.pkg.c2sm.icon import Icon as C2SMIcon
+from collections import defaultdict
 
 
 class IconHam(C2SMIcon):
@@ -27,6 +28,8 @@ def generate_hammoz_nml(self):
     def configure_args(self):
         args = super().configure_args()
 
+        flags = defaultdict(list)
+
         claw = self.spec.variants['claw'].value
         if claw == 'none':
             args.append('--disable-claw')
@@ -44,6 +47,10 @@ def configure_args(self):
         args.append('--enable-atm-phy-echam-submodels')
         args.append('--enable-hammoz')
 
+        args.extend([
+            '{0}={1}'.format(var, ' '.join(val)) for var, val in flags.items()
+        ])
+
         return args
 
     def build(self, spec, prefix):
@@ -57,4 +64,4 @@ def build(self, spec, prefix):
             make.jobs = 8
             make('preprocess')
             make.jobs = make_jobs
-        make(*self.build_targets)
+        make(*self.build_targets)