test: run the main executable after installation

tests/install/Taskfile.yml

@@ -20,6 +20,10 @@ tasks:
     cmds:
       - task: myproj:test.release
       - cmake --install ./build --config Release --prefix {{.CWD}}/install
+      - cmd: '{{.CWD}}/install/bin/main.exe'
+        platforms: [windows]
+      - cmd: '{{.CWD}}/install/bin/main'
+        platforms: [linux, darwin]
 
   default:
     cmds:

tests/myproj/CMakeLists.txt

@@ -24,6 +24,8 @@ run_conan()
 
 project(myproj VERSION 0.2.0 LANGUAGES CXX C)
 
+include(cmake/rpath.cmake)  # Set rpath for installed programs, used in runtime installation test
+
 set(PCH_HEADERS
     <Eigen/Dense>
     <fmt/core.h>

tests/myproj/cmake/rpath.cmake

@@ -0,0 +1,14 @@
+# - A workaround to correctly resolve installed runtime dependencies on unix for now
+# Include this module in the main CMakeLists.txt before adding targets to make use
+include_guard()
+
+include(GNUInstallDirs)
+
+set(CMAKE_SKIP_INSTALL_RPATH OFF)
+
+if(APPLE)
+  set(CMAKE_MACOSX_RPATH ON)
+  list(APPEND CMAKE_INSTALL_RPATH @loader_path/../${CMAKE_INSTALL_LIBDIR})
+else()
+  list(APPEND CMAKE_INSTALL_RPATH $ORIGIN/../${CMAKE_INSTALL_LIBDIR})
+endif()