Try out different Clad version for validation

Author: guitargeek

hist/hist/src/TFormula.cxx

@@ -3300,7 +3300,7 @@ bool TFormula::GenerateGradientPar() {
    // reuse the already generated gradient function.
    if (!functionExists(GetGradientFuncName())) {
       std::string GradientCall
-          ("clad::gradient(" + std::string(fClingName.Data()) + ", \"p\");");
+          ("clad::gradient<clad::opts::enable_va>(" + std::string(fClingName.Data()) + ", \"p\");");
       if (!DeclareGenerationInput(GetGradientFuncName(),
                                   GradientCall,
                                   fGradGenerationInput))

interpreter/cling/tools/plugins/clad/CMakeLists.txt

@@ -73,8 +73,8 @@ set(_clad_extra_settings
 if (DEFINED CLAD_SOURCE_DIR)
   list(APPEND _clad_extra_settings SOURCE_DIR ${CLAD_SOURCE_DIR})
 else()
-  list(APPEND _clad_extra_settings GIT_REPOSITORY https://github.com/vgvassilev/clad.git)
-  list(APPEND _clad_extra_settings GIT_TAG v2.1)
+  list(APPEND _clad_extra_settings GIT_REPOSITORY https://github.com/ovdiiuv/clad.git)
+  list(APPEND _clad_extra_settings GIT_TAG forw-act)
 endif()
 
 ## list(APPEND _clad_patches_list "patch1.patch" "patch2.patch")

roofit/roofitcore/src/RooEvaluatorWrapper.cxx

@@ -313,7 +313,7 @@ void RooFuncWrapper::createGradient()
    std::stringstream requestFuncStrm;
    requestFuncStrm << "#pragma clad ON\n"
                       "void " << requestName << "() {\n"
-                      "  clad::gradient(" << _funcName << ", \"params\");\n"
+                      "  clad::gradient<clad::opts::enable_va>(" << _funcName << ", \"params\");\n"
                       "}\n"
                       "#pragma clad OFF";
    // clang-format on

tmva/sofie/test/TestGemmDerivative.cxx

@@ -100,7 +100,7 @@ TEST_P(GemmTest, GemmTestDerivative)
 
             #pragma clad ON
             void clad_request() {
-               clad::gradient(gemm_function, "variables");
+               clad::gradient<clad::opts::enable_va>(gemm_function, "variables");
             }
             #pragma clad OFF
         )cpp");