Add static-only option for udunits (#38099)

* Add static-only option for udunits

* add maintainer to udunits

var/spack/repos/builtin/packages/udunits/package.py

@@ -12,6 +12,8 @@ class Udunits(AutotoolsPackage):
     homepage = "https://www.unidata.ucar.edu/software/udunits"
     url = "https://artifacts.unidata.ucar.edu/repository/downloads-udunits/2.2.28/udunits-2.2.28.tar.gz"
 
+    maintainers("AlexanderRichert-NOAA")
+
     # Unidata now only provides the latest version of each X.Y branch.
     # Older 2.2 versions have been deprecated accordingly but are still
     # available in the build cache.
@@ -34,6 +36,11 @@ class Udunits(AutotoolsPackage):
 
     depends_on("expat")
 
+    variant("shared", default=True, description="Build shared library")
+
     @property
     def libs(self):
         return find_libraries(["libudunits2"], root=self.prefix, recursive=True, shared=True)
+
+    def configure_args(self):
+        return self.enable_or_disable("shared")