Add bin/compiler to PATH for intel-oneapi-compilers (#1922)

In spack-ext/lib/jcsda-emc/spack-stack/stack/meta_modules.py: for intel-oneapi-compilers, attempt to add subdirectory compiler of bin to PATH, and test in CI.

This will have no effect on Cray systems using the Cray compiler wrappers, but that's fine. Cray systems have their own, Cray-generated compiler modules anyway.

Author: climbfuji

.github/workflows/ubuntu-ci-x86_64-oneapi-ifx.yaml

@@ -239,3 +239,8 @@ jobs:
           module load ewok-env
           module load soca-env
           module list
+
+          # https://github.com/JCSDA/spack-stack/issues/1903
+          module show stack-intel-oneapi-compilers/2024.2.0
+          which llvm-ar
+          llvm-ar --version

.github/workflows/ubuntu-ci-x86_64-oneapi.yaml

@@ -239,3 +239,8 @@ jobs:
           module load ewok-env
           module load soca-env
           module list
+
+          # https://github.com/JCSDA/spack-stack/issues/1903
+          module show stack-intel-oneapi-compilers/2024.2.0
+          which llvm-ar
+          llvm-ar --version

spack-ext/lib/jcsda-emc/spack-stack/stack/meta_modules.py

@@ -399,7 +399,7 @@ def custom_sort_key(entry):
         logging.debug("  ... ... CC  : {}".format(substitutes["CC"]))
         logging.debug("  ... ... CXX : {}".format(substitutes["CXX"]))
         logging.debug("  ... ... F77 : {}".format(substitutes["F77"]))
-        logging.debug("  ... ... FC' : {}".format(substitutes["FC"]))
+        logging.debug("  ... ... FC  : {}".format(substitutes["FC"]))
 
         # Compiler flags; names are lowercase in spack
         if "flags" in compiler.extra_attributes.keys():
@@ -422,6 +422,17 @@ def custom_sort_key(entry):
                         env_name,
                         env_values
                     )
+        # https://github.com/JCSDA/spack-stack/issues/1903
+        # Attempt to locate directory "compiler" in the same directory where
+        # "icx" resides. If found, add it to PATH in the compiler module
+        if compiler.name=="intel-oneapi-compilers":
+            path_to_icx = os.path.dirname(substitutes["CC"])
+            if os.path.isdir(os.path.join(path_to_icx, "compiler")):
+                substitutes["ENVVARS"] +=  prepend_path_command(
+                    module_choice,
+                    "PATH",
+                    os.path.join(path_to_icx, "compiler"),
+                )
         substitutes["ENVVARS"] = substitutes["ENVVARS"].rstrip("\n")
         logging.debug("  ... ... ENVVARS  : {}".format(substitutes["ENVVARS"]))