Added +repro variant

packages/mom5/package.py

@@ -19,6 +19,7 @@ class Mom5(MakefilePackage):
     version("master", branch="master")
 
     variant("deterministic", default=False, description="Deterministic build.")
+    variant("repro", default=False, description="Reproducible build.")
     variant("optimisation_report", default=False, description="Generate optimisation reports.")
 
     # Depend on virtual package "mpi".
@@ -60,6 +61,9 @@ def edit(self, spec, prefix):
         if "+deterministic" in self.spec:
             FFLAGS_OPT = "-g0 -O0 -xCORE-AVX2 -debug none -check none"
             CFLAGS_OPT = "-O0 -debug none -xCORE-AVX2"
+        if "+repro" in self.spec:
+            FFLAGS_OPT += "-fp-model precise -fp-model source -align all"
+            CFLAGS_OPT += "-fp-model precise -fp-model source"
 
         # Copied from bin/mkmf.template.ubuntu
         config["gcc"] = f"""
@@ -84,7 +88,7 @@ def edit(self, spec, prefix):
 
 #
 FFLAGS_OPT = -O2
-FFLAGS_REPRO = 
+FFLAGS_REPRO =
 FFLAGS_DEBUG = -O0 -g -W -fbounds-check 
 FFLAGS_OPENMP = -fopenmp
 FFLAGS_VERBOSE = 
@@ -94,6 +98,7 @@ def edit(self, spec, prefix):
 CFLAGS_OPT = -O2
 CFLAGS_OPENMP = -fopenmp
 CFLAGS_DEBUG = -O0 -g 
+CFLAGS_REPRO = 
 
 # Optional Testing compile flags.  Mutually exclusive from DEBUG, REPRO, and OPT
 # *_TEST will match the production if no new option(s) is(are) to be tested.