Add pic variant to bacio (#32388)

* Add pic variant to bacio

* Fix black style error

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

@@ -27,3 +27,10 @@ class Bacio(CMakePackage):
         sha256="7b9b6ba0a288f438bfba6a08b6e47f8133f7dba472a74ac56a5454e2260a7200",
         preferred=True,
     )
+
+    variant("pic", default=True, description="Build with position-independent-code")
+
+    def cmake_args(self):
+        args = [self.define_from_variant("CMAKE_POSITION_INDEPENDENT_CODE", "pic")]
+
+        return args