intel-oneapi-mkl: add cluster libs and option for static linking (#26256)

lib/spack/spack/build_systems/oneapi.py

@@ -99,7 +99,13 @@ def setup_run_environment(self, env):
 
 
 class IntelOneApiLibraryPackage(IntelOneApiPackage):
-    """Base class for Intel oneAPI library packages."""
+    """Base class for Intel oneAPI library packages.
+
+    Contains some convenient default implementations for libraries.
+    Implement the method directly in the package if something
+    different is needed.
+
+    """
 
     @property
     def headers(self):
@@ -111,3 +117,36 @@ def libs(self):
         lib_path = join_path(self.component_path, 'lib', 'intel64')
         lib_path = lib_path if isdir(lib_path) else dirname(lib_path)
         return find_libraries('*', root=lib_path, shared=True, recursive=True)
+
+
+class IntelOneApiStaticLibraryList(object):
+    """Provides ld_flags when static linking is needed
+
+    Oneapi puts static and dynamic libraries in the same directory, so
+    -l will default to finding the dynamic library. Use absolute
+    paths, as recommended by oneapi documentation.
+
+    Allow both static and dynamic libraries to be supplied by the
+    package.
+    """
+
+    def __init__(self, static_libs, dynamic_libs):
+        self.static_libs = static_libs
+        self.dynamic_libs = dynamic_libs
+
+    @property
+    def directories(self):
+        return self.dynamic_libs.directories
+
+    @property
+    def search_flags(self):
+        return self.dynamic_libs.search_flags
+
+    @property
+    def link_flags(self):
+        return '-Wl,--start-group {0} -Wl,--end-group {1}'.format(
+            ' '.join(self.static_libs.libraries), self.dynamic_libs.link_flags)
+
+    @property
+    def ld_flags(self):
+        return '{0} {1}'.format(self.search_flags, self.link_flags)

lib/spack/spack/pkgkit.py

@@ -29,7 +29,11 @@
 from spack.build_systems.maven import MavenPackage
 from spack.build_systems.meson import MesonPackage
 from spack.build_systems.octave import OctavePackage
-from spack.build_systems.oneapi import IntelOneApiLibraryPackage, IntelOneApiPackage
+from spack.build_systems.oneapi import (
+    IntelOneApiLibraryPackage,
+    IntelOneApiPackage,
+    IntelOneApiStaticLibraryList,
+)
 from spack.build_systems.perl import PerlPackage
 from spack.build_systems.python import PythonPackage
 from spack.build_systems.qmake import QMakePackage