add a dd4hep formula

.github/workflows/tests.yml

@@ -8,7 +8,9 @@ jobs:
   test-bot:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: 
+          # - ubuntu-latest
+          - macos-latest
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Homebrew

Formula/dd4hep.rb

@@ -0,0 +1,63 @@
+class Dd4hep < Formula
+  desc "Detector Description Toolkit for High Energy Physics"
+  homepage "https://dd4hep.web.cern.ch"
+  url "https://github.com/AIDASoft/DD4hep/archive/refs/tags/v01-17.tar.gz"
+  version "01-17"
+  sha256 "036a9908aaf1e13eaf5f2f43b6f5f4a8bdda8183ddc5befa77a4448dbb485826"
+  license "LGPL-3.0-only"
+
+  depends_on "cmake" => :build
+  depends_on "boost"
+  depends_on "geant4"
+  depends_on "python"
+  depends_on "root"
+  depends_on "xerces-c"
+  uses_from_macos "expat"
+  uses_from_macos "zlib"
+
+  patch :p1, :DATA
+
+  def install
+    system "cmake",
+           "-S",
+           ".",
+           "-B",
+           "build",
+          "-DCMAKE_BUILD_TYPE=Release",
+          "-DDD4HEP_USE_GEANT4=ON",
+          "-DDD4HEP_IGNORE_GEANT4_TLS=ON",
+          "-DCMAKE_CXX_STANDARD=17",
+          "-DBUILD_DOCS=OFF",
+           *std_cmake_args
+    system "cmake", "--build", "build"
+    system "cmake", "--install", "build"
+  end
+
+  test do
+    system "true"
+  end
+end
+__END__
+diff --git a/cmake/DD4hepBuild.cmake b/cmake/DD4hepBuild.cmake
+index 6a2ddde..148c16a 100644
+--- a/cmake/DD4hepBuild.cmake
++++ b/cmake/DD4hepBuild.cmake
+@@ -684,7 +684,7 @@ macro(DD4HEP_SETUP_ROOT_TARGETS)
+     ENDIF()
+     dd4hep_debug("D++> Python version used for building ROOT ${ROOT_PYTHON_VERSION}" )
+     dd4hep_debug("D++> Required python version ${REQUIRE_PYTHON_VERSION}")
+-    FIND_PACKAGE(Python ${REQUIRE_PYTHON_VERSION} EXACT REQUIRED COMPONENTS Development)
++    FIND_PACKAGE(Python ${REQUIRE_PYTHON_VERSION} REQUIRED COMPONENTS Development)
+   ELSE()
+     FIND_PACKAGE(Python COMPONENTS Development)
+   ENDIF()
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -135,6 +135,7 @@ if(DD4HEP_USE_GEANT4)
+   IF(NOT Geant4_builtin_clhep_FOUND)
+     SET(DD4HEP_USE_CLHEP TRUE)
+   ENDIF()
++  message(STATUS ${Geant4_TLS_MODEL})
+   DD4HEP_SETUP_GEANT4_TARGETS()
+   # Geant4 sets the CLHEP include directory to include_directories, we undo this here
+   # we don't do this inside DD4hep_SETUP_GEANT4_TARGETS, because that is also used in