From 5b4d9331c8c60a69e850617e23970d635aa19537 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Tue, 26 Sep 2023 12:32:12 -0400
Subject: [PATCH] build: provide typical default value for CMAKE_INSTALL_RPATH

---
 CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ed3c4486..a0cdb52c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,6 @@ include(cmake/code-coverage.cmake)
 # unit test setup
 
 enable_testing()
-
 # activate code coverage for all executables + libraries (when configured with -DCODE_COVERAGE=ON)
 add_code_coverage()
 # 1. assuming that /nix/store/ prefixes .hpp files belonging to gcc, catch2 etc.
@@ -39,6 +38,10 @@ set(CMAKE_CXX_STANDARD_REQUIRED True)
 # always write compile_commands.json
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
 
+if(NOT CMAKE_INSTALL_RPATH)
+    set(CMAKE_INSTALL_RPATH $(CMAKE_INSTALL_PREFIX)/lib CACHE STRING "runpath in installed libraries/executables")
+endif()
+
 # ----------------------------------------------------------------
 # sources