From f92be5511b617571c83865450a4d56664ba5d8f8 Mon Sep 17 00:00:00 2001
From: Hans Dembinski <hans.dembinski@gmail.com>
Date: Tue, 23 Apr 2019 12:09:44 +0200
Subject: [PATCH] pythia fixes

---
 Documentation/Examples/CMakeLists.txt | 132 ++++++++++++++------------
 1 file changed, 69 insertions(+), 63 deletions(-)

diff --git a/Documentation/Examples/CMakeLists.txt b/Documentation/Examples/CMakeLists.txt
index ffc14426..104a1513 100644
--- a/Documentation/Examples/CMakeLists.txt
+++ b/Documentation/Examples/CMakeLists.txt
@@ -22,27 +22,29 @@ target_link_libraries (stack_example SuperStupidStack CORSIKAunits
   CORSIKAlogging)
 CORSIKA_ADD_TEST (stack_example)
 
-add_executable (cascade_example cascade_example.cc)
-target_compile_options(cascade_example PRIVATE -g) # do not skip asserts
-target_link_libraries (cascade_example SuperStupidStack CORSIKAunits
-  CORSIKAlogging
-  CORSIKArandom
-  ProcessSibyll
-  ProcessPythia
-  CORSIKAcascade
-  ProcessEnergyLoss
-  ProcessStackInspector
-  ProcessTrackWriter
-  ProcessTrackingLine
-  CORSIKAprocesses
-  CORSIKAcascade
-  CORSIKAparticles
-  CORSIKAgeometry
-  CORSIKAenvironment
-  CORSIKAprocesssequence
-  )
-install (TARGETS cascade_example DESTINATION share/examples)
-CORSIKA_ADD_TEST (cascade_example)
+if (Pythia8_FOUND)
+  add_executable (cascade_example cascade_example.cc)
+  target_compile_options(cascade_example PRIVATE -g) # do not skip asserts
+  target_link_libraries (cascade_example SuperStupidStack CORSIKAunits
+    CORSIKAlogging
+    CORSIKArandom
+    ProcessSibyll
+    ProcessPythia
+    CORSIKAcascade
+    ProcessEnergyLoss
+    ProcessStackInspector
+    ProcessTrackWriter
+    ProcessTrackingLine
+    CORSIKAprocesses
+    CORSIKAcascade
+    CORSIKAparticles
+    CORSIKAgeometry
+    CORSIKAenvironment
+    CORSIKAprocesssequence
+    )
+  install (TARGETS cascade_example DESTINATION share/examples)
+  CORSIKA_ADD_TEST (cascade_example)
+endif()
 
 add_executable (boundary_example boundary_example.cc)
 target_compile_options(boundary_example PRIVATE -g) # do not skip asserts
@@ -62,50 +64,54 @@ target_link_libraries (boundary_example SuperStupidStack CORSIKAunits CORSIKAlog
 install (TARGETS boundary_example DESTINATION share/examples)
 CORSIKA_ADD_TEST (boundary_example)
 
-add_executable (cascade_proton_example cascade_proton_example.cc)
-target_compile_options(cascade_proton_example PRIVATE -g) # do not skip asserts
-target_link_libraries (cascade_proton_example SuperStupidStack CORSIKAunits
-  CORSIKAlogging
-  CORSIKArandom
-  ProcessSibyll
-  ProcessPythia
-  CORSIKAcascade
-  ProcessEnergyLoss
-  ProcessTrackWriter
-  ProcessTrackingLine
-  ProcessHadronicElasticModel
-  CORSIKAprocesses
-  CORSIKAcascade
-  CORSIKAparticles
-  CORSIKAgeometry
-  CORSIKAenvironment
-  CORSIKAprocesssequence
-  )
+if (Pythia8_FOUND)
+  add_executable (cascade_proton_example cascade_proton_example.cc)
+  target_compile_options(cascade_proton_example PRIVATE -g) # do not skip asserts
+  target_link_libraries (cascade_proton_example SuperStupidStack CORSIKAunits
+    CORSIKAlogging
+    CORSIKArandom
+    ProcessSibyll
+    ProcessPythia
+    CORSIKAcascade
+    ProcessEnergyLoss
+    ProcessTrackWriter
+    ProcessTrackingLine
+    ProcessHadronicElasticModel
+    CORSIKAprocesses
+    CORSIKAcascade
+    CORSIKAparticles
+    CORSIKAgeometry
+    CORSIKAenvironment
+    CORSIKAprocesssequence
+    )
 
-install (TARGETS cascade_proton_example DESTINATION share/examples)
-CORSIKA_ADD_TEST (cascade_proton_example)
+  install (TARGETS cascade_proton_example DESTINATION share/examples)
+  CORSIKA_ADD_TEST (cascade_proton_example)
+endif()
 
-add_executable (vertical_EAS vertical_EAS.cc)
-target_compile_options(vertical_EAS PRIVATE -g) # do not skip asserts
-target_link_libraries (vertical_EAS SuperStupidStack CORSIKAunits
-  CORSIKAlogging
-  CORSIKArandom
-  ProcessSibyll
-  ProcessPythia
-  CORSIKAcascade
-  ProcessEnergyLoss
-  ProcessTrackWriter
-  ProcessTrackingLine
-  ProcessHadronicElasticModel
-  CORSIKAprocesses
-  CORSIKAcascade
-  CORSIKAparticles
-  CORSIKAgeometry
-  CORSIKAenvironment
-  CORSIKAprocesssequence
-  )
-install (TARGETS vertical_EAS DESTINATION share/examples)
-# CORSIKA_ADD_TEST (vertical_EAS) not yet...
+if (Pythia8_FOUND)
+  add_executable (vertical_EAS vertical_EAS.cc)
+  target_compile_options(vertical_EAS PRIVATE -g) # do not skip asserts
+  target_link_libraries (vertical_EAS SuperStupidStack CORSIKAunits
+    CORSIKAlogging
+    CORSIKArandom
+    ProcessSibyll
+    ProcessPythia
+    CORSIKAcascade
+    ProcessEnergyLoss
+    ProcessTrackWriter
+    ProcessTrackingLine
+    ProcessHadronicElasticModel
+    CORSIKAprocesses
+    CORSIKAcascade
+    CORSIKAparticles
+    CORSIKAgeometry
+    CORSIKAenvironment
+    CORSIKAprocesssequence
+    )
+  install (TARGETS vertical_EAS DESTINATION share/examples)
+  # CORSIKA_ADD_TEST (vertical_EAS) not yet...
+endif()
 
 add_executable (staticsequence_example staticsequence_example.cc)
 target_compile_options(staticsequence_example PRIVATE -g) # do not skip asserts
-- 
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