--- CMakeLists.txt.orig	2026-05-25 05:18:48 UTC
+++ CMakeLists.txt
@@ -35,6 +35,8 @@ option(kep3_BUILD_PYTHON_BINDINGS "Build Python bindin
 option(kep3_BUILD_BENCHMARKS "Build benchmarks." OFF)
 option(kep3_BUILD_PYTHON_BINDINGS "Build Python bindings." OFF)
 
+if(kep3_BUILD_CPP_LIBRARY)
+
 # NOTE: on Unix systems, the correct library installation path
 # could be something other than just "lib", such as "lib64",
 # "lib32", etc., depending on platform/configuration. Apparently,
@@ -266,6 +268,8 @@ if(kep3_BUILD_BENCHMARKS)
 
 if(kep3_BUILD_BENCHMARKS)
     add_subdirectory(benchmark)
+
+endif()
 
 endif()