Examples all build and test

examples/.gitignore

@@ -0,0 +1,14 @@
+Testing
+CMakeFiles
+build*
+G__*
+*.pcm
+*.root
+*.rootmap
+*.dylib
+*.so
+Makefile
+cmake_install.cmake
+CMakeCache.txt
+MyExample
+CTestTestfile.cmake

examples/CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.11)
+
+project(ModernCMakeExamples)
+
+enable_testing()
+
+add_subdirectory(root-simple)
+add_subdirectory(root-simple-3.11)
+add_subdirectory(root-dict)

examples/root-dict/CMakeLists.txt

@@ -2,7 +2,7 @@
 ## [main]
 cmake_minimum_required(VERSION 3.1)
 
-project(RootExampleDict LANGUAGES CXX)
+project(RootDictExample LANGUAGES CXX)
 
 find_package(ROOT CONFIG REQUIRED)
 include("${ROOT_DIR}/modules/RootNewMacros.cmake")
@@ -17,11 +17,14 @@ set_target_properties(ROOT::Core PROPERTIES
     )
 
 include_directories(ROOT_BUG)
-root_generate_dictionary(G__MyExample MyExample.h LINKDEF SimpleLinkDef.h)
+root_generate_dictionary(G__DictExample DictExample.h LINKDEF DictLinkDef.h)
 
-add_library(MyExample SHARED MyExample.cxx MyExample.h G__MyExample.cxx)
+add_library(DictExample SHARED DictExample.cxx DictExample.h G__DictExample.cxx)
-target_link_libraries(MyExample PUBLIC ROOT::Core)
+target_link_libraries(DictExample PUBLIC ROOT::Core)
 
 ## [main]
-#enable_testing()
+
-#add_test(NAME MyExample COMMAND )
+enable_testing()
+add_test(NAME RootDictExample
+    WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
+    COMMAND "${ROOT_root_CMD}" -b -l -q "${CMAKE_CURRENT_SOURCE_DIR}/CheckLoad.C")

examples/root-dict/CheckLoad.C

@@ -1,5 +1,5 @@
 {
-gSystem->Load("libMyExample");
+gSystem->Load("libDictExample");
 Simple s;
 cout << s.GetX() << endl;
 TFile *_file = TFile::Open("tmp.root", "RECREATE");

examples/root-dict/DictExample.cxx

@@ -1,4 +1,4 @@
-#include "MyExample.h"
+#include "DictExample.h"
 
 Double_t Simple::GetX() const {return x;}
 

examples/root-simple-3.11/CMakeLists.txt

@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.11)
+
+project(RootSimpleExample311 LANGUAGES CXX)
+
+find_package(ROOT CONFIG REQUIRED)
+message(STATUS "Found ROOT: ${ROOT_VERSION} at ${ROOT_DIR}")
+
+string(REPLACE " " ";" ROOT_CXX_FLAG_LIST "${ROOT_CXX_FLAGS}")
+
+## [modern_fix]
+target_include_directories(ROOT::Core INTERFACE "${ROOT_INCLUDE_DIRS}")
+target_compile_options(ROOT::Core INTERFACE "${ROOT_CXX_FLAG_LIST}")
+## [modern_fix]
+
+add_executable(RootSimpleExample311 SimpleExample.cxx)
+target_link_libraries(RootSimpleExample311 PUBLIC ROOT::Physics)
+
+enable_testing()
+add_test(NAME RootSimpleExample311 COMMAND RootSimpleExample311)

examples/root-simple/CMakeLists.txt

@@ -22,11 +22,11 @@ set_property(TARGET ROOT::Core APPEND PROPERTY
 ## [setup_properties]
 
 ## [add_and_link]
-add_executable(MyExample MyExample.cxx)
+add_executable(RootSimpleExample SimpleExample.cxx)
-target_link_libraries(MyExample PUBLIC ROOT::Physics)
+target_link_libraries(RootSimpleExample PUBLIC ROOT::Physics)
 ## [add_and_link]
 
 ## [main]
 
 enable_testing()
-add_test(NAME RootSimpleExample COMMAND MyExample)
+add_test(NAME RootSimpleExample COMMAND RootSimpleExample)

examples/root-simple/SimpleExample.cxx

@@ -0,0 +1,7 @@
+
+#include <TLorentzVector.h>
+int main() {
+    TLorentzVector v(1,2,3,4);
+    v.Print();
+    return 0;
+}