rhash: un-block intel builds (#29117)

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

@@ -23,6 +23,10 @@ class Rhash(MakefilePackage):
     patch('https://github.com/rhash/RHash/commit/4dc506066cf1727b021e6352535a8bb315c3f8dc.patch?full_index=1',
           when='@1.4.2', sha256='3fbfe4603d2ec5228fd198fc87ff3ee281e1f68d252c1afceaa15cba76e9b6b4')
 
+    # Intel 20xx.yy.z works just fine.  Un-block it from the configure script
+    # https://github.com/rhash/RHash/pull/197
+    patch('rhash-intel20.patch')
+
     # For macOS build instructions, see:
     # https://github.com/Homebrew/homebrew-core/blob/master/Formula/rhash.rb
 

var/spack/repos/builtin/packages/rhash/rhash-intel20.patch

@@ -0,0 +1,13 @@
+diff --git a/configure b/configure
+index 59d432b..cadbffe 100755
+--- a/configure
++++ b/configure
+@@ -500,7 +500,7 @@ if test "$(basename $CC)" = "icc" || test "$(basename $CC)" = "ecc"; then
+       cc_version="v. ?.??, bad"
+       cc_fail=yes
+       ;;
+-    10.1|11.1|12.*|13.*)
++    10.1|11.1|12.*|13.*|20*)
+       cc_version="$cc_version, ok"
+       ;;
+     *)