vbfnlo: add v3.0; depends on tcsh (build) (#47532)

* vbfnlo: depends on tcsh (build)

* vbfnlo: add v3.0

* vbfnlo: comment

Co-authored-by: Valentin Volkl <valentin.volkl@cern.ch>

---------

Co-authored-by: Valentin Volkl <valentin.volkl@cern.ch>

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

@@ -20,6 +20,7 @@ class Vbfnlo(AutotoolsPackage):
     license("GPL-2.0-only")
 
     # The commented out versions exist, but are not tested
+    version("3.0", sha256="b9df02603e4f801f866360c720191a29afdb958d0bd4369ea7d810e761503e51")
     version(
         "3.0.0beta5", sha256="777a3dedb365ea9abc38848a60f30d325da3799cbad69fa308664b94a8c31a90"
     )
@@ -41,7 +42,6 @@ class Vbfnlo(AutotoolsPackage):
 
     depends_on("cxx", type="build")  # generated
     depends_on("fortran", type="build")  # generated
-    # version('2.7.0',      sha256='0e96c0912599e3000fffec5305700b947b604a7b06c7975851503f445311e4ef')
 
     # Documentation is broken on some systems:
     # See https://github.com/vbfnlo/vbfnlo/issues/2
@@ -55,6 +55,8 @@ class Vbfnlo(AutotoolsPackage):
     depends_on("autoconf", type="build")
     depends_on("m4", type="build")
     depends_on("libtool", type="build")
+    # needed as tcsh is hardcoded in m4/vbfnlo.m4, could be patched out in the future
+    depends_on("tcsh", type="build")
 
     @when("@2.7.1")
     def setup_build_environment(self, env):