From 5750f2e84eaa3ed61ced797ae6d39ecd2e3b5820 Mon Sep 17 00:00:00 2001
From: flagarde <lagarde@sjtu.edu.cn>
Date: Fri, 31 Jul 2020 18:06:57 +0800
Subject: [PATCH 1/4] Add options

---
 CMakeLists.txt         | 103 ++++++++++++++++++-----------------------
 src/cpp/CMakeLists.txt |  81 ++++++++++++++++----------------
 2 files changed, 86 insertions(+), 98 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ad4c5d40..2d2a2cf57 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,17 +5,39 @@
 CMAKE_MINIMUM_REQUIRED( VERSION 2.8 FATAL_ERROR )
 ########################################################
 
-
-
 # project name
 PROJECT( LCIO )
 
-
 # project version
 SET( LCIO_VERSION_MAJOR 2 )
 SET( LCIO_VERSION_MINOR 14 )
 SET( LCIO_VERSION_PATCH 2 )
 
+# lcio.jar
+OPTION( INSTALL_JAR "Set to OFF to skip build/install lcio.jar" OFF )
+OPTION( BUILD_APPS "Set to OFF to skip build/install of apps" ON )
+# allow C++ only builds
+OPTION( LCIO_GENERATE_HEADERS "Set to OFF to use pre-generated headers (no java needed)" OFF)
+OPTION( BUILD_ROOTDICT "Set to ON to build ROOT dictionary" OFF )
+OPTION( BUILD_FORTRAN  "Set to OFF to skip build/install Fortran codes" ON )
+OPTION( BUILD_F77_TESTJOBS "Set to ON to build LCIO F77 testjobs" OFF )
+OPTION( INSTALL_DOC "Set to OFF to skip build/install Documentation" OFF )
+OPTION( BUILD_LCIO_EXAMPLES "Set to ON to build LCIO examples" ON )
+OPTION( INSTALL_PYTHON "Set to ON to install python codes" ON)
+
+include(CheckLanguage)
+
+if(BUILD_FORTRAN OR BUILD_F77_TESTJOBS)
+  check_language(Fortran)
+  if(CMAKE_Fortran_COMPILER)
+    enable_language(Fortran)
+  else()
+  message(STATUS "No Fortran support !!!")
+    set(BUILD_FORTRAN OFF)
+    set(BUILD_F77_TESTJOBS OFF)
+  endif()
+endif()
+
 ### set correct LCIO version in relevant files  ############################
 
 configure_file (
@@ -51,8 +73,6 @@ configure_file (
   "${PROJECT_SOURCE_DIR}/pom.xml"
   )
 
-
-
 ### DEPENDENCIES ############################################################
 
 LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake )
@@ -66,25 +86,19 @@ IF( NOT CMAKE_CXX_STANDARD )
 ENDIF()
 SET( CMAKE_CXX_STANDARD_REQUIRED ON )
 
-# lcio.jar
-OPTION( INSTALL_JAR "Set to OFF to skip build/install lcio.jar" OFF )
-
-# allow C++ only builds
-OPTION( LCIO_GENERATE_HEADERS "Set to OFF to use pre-generated headers (no java needed)" OFF)
-
 IF( INSTALL_JAR )
-    INSTALL( CODE "EXECUTE_PROCESS( COMMAND ${CMAKE_BUILD_TOOL} jar)" )
-    INSTALL( FILES "${PROJECT_SOURCE_DIR}/lib/lcio.jar" DESTINATION lib )# OPTIONAL )
+  INSTALL( CODE "EXECUTE_PROCESS( COMMAND ${CMAKE_BUILD_TOOL} jar)" )
+  INSTALL( FILES "${PROJECT_SOURCE_DIR}/lib/lcio.jar" DESTINATION lib )# OPTIONAL )
 ENDIF()
 
-
 # install python stuff (for out-of-source-build)
-INSTALL( DIRECTORY "${PROJECT_SOURCE_DIR}/src/python/" DESTINATION python )
-INSTALL( DIRECTORY "${PROJECT_SOURCE_DIR}/examples/python/" DESTINATION python/examples )
-
+IF( INSTALL_PYTHON )
+  INSTALL( DIRECTORY "${PROJECT_SOURCE_DIR}/src/python/" DESTINATION python )
+  INSTALL( DIRECTORY "${PROJECT_SOURCE_DIR}/examples/python/" DESTINATION python/examples )
+ENDIF()
 
 # JAVA (needed to generate c++ headers)
-if( INSTALL_JAR OR LCIO_GENERATE_HEADERS)
+if( INSTALL_JAR OR LCIO_GENERATE_HEADERS )
   INCLUDE( FindJAVA4LCIO )
   IF( NOT JAVA_FOUND )
     MESSAGE( FATAL_ERROR "Failed to find Java! Please set JAVA_DIR=/path/to/java \n"
@@ -92,14 +106,11 @@ if( INSTALL_JAR OR LCIO_GENERATE_HEADERS)
   ENDIF()
 endif()
 
-
 # ROOT
-OPTION( BUILD_ROOTDICT "Set to ON to build ROOT dictionary" OFF )
 IF( BUILD_ROOTDICT )
-    FIND_PACKAGE( ROOT 6.04 REQUIRED ) # look for ROOT versions >= 5.27.06
+  FIND_PACKAGE( ROOT 6.04 REQUIRED ) # look for ROOT versions >= 6.04
 ENDIF()
 
-
 # DCAP
 #OPTION( LCIO_DCAP "Set to ON to build LCIO with dcap (dCache) support" OFF )
 #MESSAGE( STATUS "LCIO_DCAP = ${LCIO_DCAP}" )
@@ -121,7 +132,6 @@ ENDIF()
 #    ENDIF()
 #ENDIF()
 
-
 # UNIX SHELL (needed for calling LCIO_ENV_INIT script)
 FIND_PROGRAM( SH sh ${CYGWIN_INSTALL_PATH}/bin /bin /usr/bin /usr/local/bin /sbin )
 MARK_AS_ADVANCED( SH )
@@ -129,16 +139,12 @@ IF( NOT SH )
     MESSAGE( FATAL_ERROR "unix shell not found" )
 ENDIF()
 
-
-
-
 ### GENERATE ENVIRONMENT SCRIPT FOR CALLING ANT #############################
 
 SET( LCIO_ENV_INIT "${PROJECT_BINARY_DIR}/lcio_env_init.sh" )
 
 IF( NOT EXISTS ${LCIO_ENV_INIT} )
     MESSAGE( STATUS "Generating lcio_env_init.sh ..." )
-    
     FILE( WRITE "${LCIO_ENV_INIT}"
 "
 #!/usr/bin/env bash
@@ -152,7 +158,6 @@ export PATH=${PROJECT_SOURCE_DIR}/tools:${JAVA_BIN_PATH}:$PATH
 eval $*
 "
     )
-
 ENDIF()
 
 # Deal with SIO
@@ -211,7 +216,6 @@ SET( LCIO_AID_HEADERS_DIR "${LCIO_SOURCE_DIR}/src/aid" )
 
 ### BUILD JAR LIBRARY (USING ANT OR MAVEN) ##################################
 if( INSTALL_JAR )
-
   SET( LCIO_JAVA_BUILD_CMD "ant aid" )
   OPTION( LCIO_JAVA_USE_MAVEN "Set to ON to build/install lcio.jar using maven" OFF )
   IF( LCIO_JAVA_USE_MAVEN )
@@ -225,8 +229,6 @@ if( INSTALL_JAR )
     COMMENT "Building lcio jar library..."
     )
 
-
-
   # custom command to generate jar library
   ADD_CUSTOM_COMMAND(
     OUTPUT "${PROJECT_SOURCE_DIR}/lib/lcio.jar"
@@ -237,8 +239,6 @@ if( INSTALL_JAR )
   
   # create target to create jar library
   ADD_CUSTOM_TARGET( jar DEPENDS ${PROJECT_SOURCE_DIR}/lib/lcio.jar )
-  
-
 
   ### REMOVE RESTS GENERATED BY ANT IN THE SOURCE-TREE ########################
   
@@ -259,56 +259,45 @@ if( INSTALL_JAR )
     COMMAND ${SH} "${LCIO_ENV_INIT}" ant clean
     WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
     )
-
-
+    
   ADD_DEPENDENCIES( uninstall uninstall_headers )
 
 endif() 
 
 ### SUBDIRECTORIES ##########################################################
 
-# replaced by standard cmake variable BUILD_TESTING
-#OPTION( BUILD_LCIO_TESTS "Set to ON to build LCIO tests under src/cpp/src/TESTS" OFF )
-
-OPTION( BUILD_LCIO_EXAMPLES "Set to ON to build LCIO examples" ON )
-
 # lcio library
 ADD_SUBDIRECTORY( ./src/cpp lcio )
 
-
-
 # fortran examples
-OPTION( BUILD_F77_TESTJOBS "Set to ON to build LCIO F77 testjobs" OFF )
 IF( BUILD_F77_TESTJOBS )
     ADD_SUBDIRECTORY( ./src/f77 f77 )
 ENDIF()
 
-
 # directory containing lcio tests
-ADD_SUBDIRECTORY( ./tests )
-
+IF( BUILD_TESTING )
+  ADD_SUBDIRECTORY( ./tests )
+ENDIF()
 
 ### DOCUMENTATION ###########################################################
-
-OPTION( INSTALL_DOC "Set to OFF to skip build/install Documentation" OFF )
 IF( INSTALL_DOC )
     ADD_SUBDIRECTORY( ./doc )
     INSTALL( CODE "EXECUTE_PROCESS( COMMAND ${CMAKE_BUILD_TOOL} doc)" )
 ENDIF()
 
-
-
 # display some variables and write them to cache
 DISPLAY_STD_VARIABLES()
 
-MESSAGE( STATUS "BUILD_LCIO_EXAMPLES = ${BUILD_LCIO_EXAMPLES}" )
-MESSAGE( STATUS "BUILD_F77_TESTJOBS = ${BUILD_F77_TESTJOBS}" )
-MESSAGE( STATUS "BUILD_ROOTDICT = ${BUILD_ROOTDICT}" )
 MESSAGE( STATUS "INSTALL_JAR = ${INSTALL_JAR}" )
-MESSAGE( STATUS "LCIO_JAVA_USE_MAVEN = ${LCIO_JAVA_USE_MAVEN}" )
-MESSAGE( STATUS "SIO_PRINT_DEBUG = ${SIO_PRINT_DEBUG}" )
-MESSAGE( STATUS "" )
-
+MESSAGE( STATUS "BUILD_APPS = ${BUILD_APPS}" )
+MESSAGE( STATUS "LCIO_GENERATE_HEADERS = ${LCIO_GENERATE_HEADERS}" )
+MESSAGE( STATUS "BUILD_ROOTDICT = ${BUILD_ROOTDICT}" )
+MESSAGE( STATUS "BUILD_FORTRAN = ${BUILD_FORTRAN}" )
+MESSAGE( STATUS "BUILD_F77_TESTJOBS = ${BUILD_F77_TESTJOBS}" )
+MESSAGE( STATUS "INSTALL_DOC = ${INSTALL_DOC}" )
+MESSAGE( STATUS "BUILD_LCIO_EXAMPLES = ${BUILD_LCIO_EXAMPLES}" )
+MESSAGE( STATUS "INSTALL_PYTHON = ${INSTALL_PYTHON}" )
+MESSAGE( STATUS "BUILD_TESTING = ${BUILD_TESTING}" )
 
 # generate and install following configuration files
 GENERATE_PACKAGE_CONFIGURATION_FILES( LCIOConfig.cmake LCIOConfigVersion.cmake )
diff --git a/src/cpp/CMakeLists.txt b/src/cpp/CMakeLists.txt
index 1b38d103b..20b043d21 100644
--- a/src/cpp/CMakeLists.txt
+++ b/src/cpp/CMakeLists.txt
@@ -3,8 +3,8 @@
 # @author Frank Gaede, DESY
 # @author Jan Engels, DESY
 #################################
-
-SET( LCIO_CPPFORT_SRCS
+IF( BUILD_FORTRAN )
+ SET( LCIO_CPPFORT_SRCS
   ./src/CPPFORT/HEPEVT.cc
   ./src/CPPFORT/lccah.cc
   ./src/CPPFORT/lcclu.cc
@@ -29,7 +29,21 @@ SET( LCIO_CPPFORT_SRCS
   ./src/CPPFORT/lcvec.cc
   ./src/CPPFORT/lcvtx.cc
   ./src/CPPFORT/lcwrt.cc
-)
+  )
+  #---- special flags for cfortran code : --------
+  SET_SOURCE_FILES_PROPERTIES(
+    ${LCIO_CPPFORT_SRCS} PROPERTIES
+    COMPILE_FLAGS "-Df2cFortran -Wno-unused"
+  )
+  # ----------------------------------------------------------------------------
+  # ------- libraries lcio + lcioF77 -------------------------------------------
+  ADD_LIBRARY( lcioF77 STATIC ${LCIO_CPPFORT_SRCS} )
+  INSTALL( TARGETS lcioF77 DESTINATION lib )
+  TARGET_LINK_LIBRARIES( lcioF77 lcio )
+ENDIF()
+
+
+
 
 SET( LCIO_IMPL_SRCS
   ./src/IMPL/AccessChecked.cc
@@ -226,7 +240,9 @@ if( LCIO_GENERATE_HEADERS )
   SET( IO_AID_HEADERS_DEP_LIST ${AID_HEADERS_LIST};${CXX_HEADERS_LIST} )
 
   # make source files depend on generated header files + aid files
-  SET_SOURCE_FILES_PROPERTIES( ${LCIO_CPPFORT_SRCS} PROPERTIES OBJECT_DEPENDS "${EVENT_AID_HEADERS_DEP_LIST};${IO_AID_HEADERS_DEP_LIST}" )
+  IF( BUILD_FORTRAN )
+    SET_SOURCE_FILES_PROPERTIES( ${LCIO_CPPFORT_SRCS} PROPERTIES OBJECT_DEPENDS "${EVENT_AID_HEADERS_DEP_LIST};${IO_AID_HEADERS_DEP_LIST}" )
+  ENDIF()
   SET_SOURCE_FILES_PROPERTIES( ${LCIO_IMPL_SRCS} PROPERTIES OBJECT_DEPENDS "${EVENT_AID_HEADERS_DEP_LIST}" )
   SET_SOURCE_FILES_PROPERTIES( ${LCIO_IOIMPL_SRCS} PROPERTIES OBJECT_DEPENDS "${IO_AID_HEADERS_DEP_LIST}" )
   # ----------------------------------------------------------------------------
@@ -249,16 +265,6 @@ endif()
 #ADD_DEFINITIONS( "-Wall -ansi -pedantic" )
 #ADD_DEFINITIONS( "-Wno-long-long -fno-strict-aliasing" )
 
-#---- special flags for cfortran code : --------
-SET_SOURCE_FILES_PROPERTIES(
-  ${LCIO_CPPFORT_SRCS} PROPERTIES
-  COMPILE_FLAGS "-Df2cFortran -Wno-unused"
-)
-# ----------------------------------------------------------------------------
-
-
-
-
 # -------- include directories -----------------------------------------------
 INCLUDE_DIRECTORIES( BEFORE "${LCIO_AID_HEADERS_OUTPUT_DIR}" )
 INCLUDE_DIRECTORIES( BEFORE "${LCIO_CXX_HEADERS_DIR}" )
@@ -279,12 +285,6 @@ INSTALL_DIRECTORY( ${LCIO_CXX_HEADERS_DIR}/ DESTINATION include
 INSTALL_DIRECTORY( ${LCIO_AID_HEADERS_OUTPUT_DIR}/ DESTINATION include )
 # ----------------------------------------------------------------------------
 
-
-
-# ------- libraries lcio + lcioF77 -------------------------------------------
-ADD_LIBRARY( lcioF77 STATIC ${LCIO_CPPFORT_SRCS} )
-INSTALL( TARGETS lcioF77 DESTINATION lib )
-
 ADD_SHARED_LIBRARY( lcio
   ${LCIO_IMPL_SRCS}
   ${LCIO_IOIMPL_SRCS}
@@ -296,14 +296,11 @@ INSTALL_SHARED_LIBRARY( lcio DESTINATION lib )
 
 TARGET_LINK_LIBRARIES( lcio ${CMAKE_THREAD_LIBS_INIT} )
 TARGET_LINK_LIBRARIES( lcio ${SIO_LIBRARIES} )
-TARGET_LINK_LIBRARIES( lcioF77 lcio )
+
 
 ADD_CUSTOM_TARGET( lib DEPENDS lcio lcioF77 )
 # ----------------------------------------------------------------------------
 
-
-
-
 # -------- rootdict library --------------------------------------------------
 
 IF( BUILD_ROOTDICT )
@@ -458,24 +455,26 @@ MACRO( ADD_LCIO_EXAMPLE file )
   INSTALL( TARGETS bin_${file} DESTINATION bin )
 ENDMACRO()
 
-ADD_LCIO_EXAMPLE( simjob )
-ADD_LCIO_EXAMPLE( anajob )
-ADD_LCIO_EXAMPLE( recjob )
-ADD_LCIO_EXAMPLE( dumpevent )
-ADD_LCIO_EXAMPLE( copyfix )
-ADD_LCIO_EXAMPLE( stdhepjob )
-ADD_LCIO_EXAMPLE( stdhepjob_new )
-ADD_LCIO_EXAMPLE( addRandomAccess )
-ADD_LCIO_EXAMPLE( lcio_event_counter )
-ADD_LCIO_EXAMPLE( lcio_check_col_elements )
-ADD_LCIO_EXAMPLE( lcio_split_file ) 
-ADD_LCIO_EXAMPLE( lcio_merge_files ) 
-ADD_LCIO_EXAMPLE( readmcparticles ) 
-ADD_LCIO_EXAMPLE( lcio_performance )
-ADD_LCIO_EXAMPLE( lcio_parallel_read ) 
-ADD_LCIO_EXAMPLE( lcio_parallel_processing ) 
+IF( BUILD_APPS )
+  ADD_LCIO_EXAMPLE( simjob )
+  ADD_LCIO_EXAMPLE( anajob )
+  ADD_LCIO_EXAMPLE( recjob )
+  ADD_LCIO_EXAMPLE( dumpevent )
+  ADD_LCIO_EXAMPLE( copyfix )
+  ADD_LCIO_EXAMPLE( stdhepjob )
+  ADD_LCIO_EXAMPLE( stdhepjob_new )
+  ADD_LCIO_EXAMPLE( addRandomAccess )
+  ADD_LCIO_EXAMPLE( lcio_event_counter )
+  ADD_LCIO_EXAMPLE( lcio_check_col_elements )
+  ADD_LCIO_EXAMPLE( lcio_split_file ) 
+  ADD_LCIO_EXAMPLE( lcio_merge_files ) 
+  ADD_LCIO_EXAMPLE( readmcparticles ) 
+  ADD_LCIO_EXAMPLE( lcio_performance )
+  ADD_LCIO_EXAMPLE( lcio_parallel_read ) 
+  ADD_LCIO_EXAMPLE( lcio_parallel_processing )
+ENDIF()
 
-IF( BUILD_ROOTDICT )
+IF( BUILD_ROOTDICT AND BUILD_LCIO_EXAMPLES )
   ADD_LCIO_EXAMPLE( lcio_io_benchmark )
   TARGET_LINK_LIBRARIES( bin_lcio_io_benchmark ${ROOT_LIBRARIES} )
 ENDIF()

From 92bd5bd567011371de00b9cb8ab9d5150785719d Mon Sep 17 00:00:00 2001
From: flagarde <lagarde@sjtu.edu.cn>
Date: Fri, 31 Jul 2020 18:08:08 +0800
Subject: [PATCH 2/4] Supress some noise

---
 src/cpp/CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/cpp/CMakeLists.txt b/src/cpp/CMakeLists.txt
index 20b043d21..07dceaa64 100644
--- a/src/cpp/CMakeLists.txt
+++ b/src/cpp/CMakeLists.txt
@@ -344,7 +344,7 @@ IF( BUILD_ROOTDICT )
     LIST( REMOVE_ITEM UTIL_CXX_HEADERS_LIST ${exclude_headers} )
 
 
-    MESSAGE( STATUS "********************* UTIL_CXX_HEADERS_LIST:  ${UTIL_CXX_HEADERS_LIST}" )
+  #MESSAGE( STATUS "********************* UTIL_CXX_HEADERS_LIST:  ${UTIL_CXX_HEADERS_LIST}" )
 
     # generate dictionary source files!
     GEN_ROOT_DICT_LINKDEF_HEADER( UTIL ${UTIL_CXX_HEADERS_LIST} )
@@ -355,7 +355,7 @@ IF( BUILD_ROOTDICT )
 
 #  MESSAGE( STATUS "********************* IO_CXX_HEADERS_LIST:  ${IO_CXX_HEADERS_LIST}" )
 #  MESSAGE( STATUS "********************* EVENT_CXX_HEADERS_LIST:  ${EVENT_CXX_HEADERS_LIST}" )
-  MESSAGE( STATUS "********************* UTIL_CXX_HEADERS_LIST:  ${UTIL_CXX_HEADERS_LIST}" )
+ # MESSAGE( STATUS "********************* UTIL_CXX_HEADERS_LIST:  ${UTIL_CXX_HEADERS_LIST}" )
 
 
     # ------ generate dictionary for IO classes --------------------

From 6144ce84f0ba593e2d5c921e8c213044dbaf8413 Mon Sep 17 00:00:00 2001
From: flagarde <lagarde@sjtu.edu.cn>
Date: Fri, 31 Jul 2020 18:14:18 +0800
Subject: [PATCH 3/4] CMAKE_CXX_STANDARD need at least CMake 3.1

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2d2a2cf57..deb98a7f8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@
 # cmake file for building LCIO
 # @author Frank Gaede, DESY
 # @author Jan Engels, DESY
-CMAKE_MINIMUM_REQUIRED( VERSION 2.8 FATAL_ERROR )
+CMAKE_MINIMUM_REQUIRED( VERSION 3.1 FATAL_ERROR )
 ########################################################
 
 # project name

From 980c58c7c111bc73dd65565fbb09caad0ef32ec5 Mon Sep 17 00:00:00 2001
From: flagarde <lagarde@sjtu.edu.cn>
Date: Fri, 31 Jul 2020 18:14:51 +0800
Subject: [PATCH 4/4] this is an app not an example

---
 src/cpp/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cpp/CMakeLists.txt b/src/cpp/CMakeLists.txt
index 07dceaa64..c0b5fe324 100644
--- a/src/cpp/CMakeLists.txt
+++ b/src/cpp/CMakeLists.txt
@@ -474,7 +474,7 @@ IF( BUILD_APPS )
   ADD_LCIO_EXAMPLE( lcio_parallel_processing )
 ENDIF()
 
-IF( BUILD_ROOTDICT AND BUILD_LCIO_EXAMPLES )
+IF( BUILD_ROOTDICT AND BUILD_APPS )
   ADD_LCIO_EXAMPLE( lcio_io_benchmark )
   TARGET_LINK_LIBRARIES( bin_lcio_io_benchmark ${ROOT_LIBRARIES} )
 ENDIF()