From 38a0273087b38fdda2e7dbe8b61007dcc6688628 Mon Sep 17 00:00:00 2001
From: Lars Bogner <upyxo@student.kit.edu>
Date: Thu, 11 Jun 2026 11:10:44 +0200
Subject: [PATCH] link run_pbwo4 to build root in both build modes

Superbuild: install step creates build/run_pbwo4 symlink pointing at
the executable in build/minicalosim-build/.
Regular build: CMAKE_RUNTIME_OUTPUT_DIRECTORY ensures the executable
lands in build/ regardless of generator.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 CMakeLists.txt            | 2 ++
 superbuild/CMakeLists.txt | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b0133e5..381d34d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,8 @@ target_link_libraries(minicalo PUBLIC ${Geant4_LIBRARIES} ${Python3_LIBRARIES})
 #----------------------------------------------------------------------------
 # Add the executable, and link it to the Geant4 and Python libraries
 #
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
+
 add_executable(run_pbwo4 run_pbwo4.cc ${sources} ${headers})
 target_link_libraries(run_pbwo4 ${Geant4_LIBRARIES} ${Python3_LIBRARIES})
 
diff --git a/superbuild/CMakeLists.txt b/superbuild/CMakeLists.txt
index 4a64abe..20b8514 100644
--- a/superbuild/CMakeLists.txt
+++ b/superbuild/CMakeLists.txt
@@ -43,6 +43,8 @@ ExternalProject_Add(run_pbwo4
     -DCMAKE_PREFIX_PATH=${G4_INSTALL}
     -DWITH_GEANT4_UIVIS=OFF
   BUILD_COMMAND   cmake --build <BINARY_DIR> --target run_pbwo4 --parallel ${NPROC}
-  INSTALL_COMMAND ""
+  INSTALL_COMMAND ${CMAKE_COMMAND} -E create_symlink
+    ${CMAKE_BINARY_DIR}/minicalosim-build/run_pbwo4
+    ${CMAKE_BINARY_DIR}/run_pbwo4
   DEPENDS geant4
 )