diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56bd936..13a862d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,8 +7,8 @@ set(CMAKE_BUILD_TYPE "Release" CACHE STRING "default build type")
 set(CMAKE_INSTALL_SO_NO_EXE False)
 set(CMAKE_LEGACY_CYGWIN_WIN32 False)
 
-if (UNIX AND NOT CYGWIN)
-	set(CMD_LDCONFIG "ldconfig" CACHE STRING "ldconfig command")
+if (UNIX)
+	find_program(LDCONFIG_EXECUTABLE "ldconfig")
 endif()
 
 project(arib_std_b25 C)
@@ -91,7 +91,7 @@ if(UNIX AND NOT CYGWIN)
 	install(TARGETS arib25-static arib25-shared ARCHIVE DESTINATION lib LIBRARY DESTINATION lib)
 	install(FILES src/arib_std_b25.h src/b_cas_card.h src/multi2.h src/ts_section_parser.h src/portable.h ${CMAKE_CURRENT_BINARY_DIR}/arib25_api.h DESTINATION include/arib25)
 	install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_SHARED_LIBRARY_PREFIX}${ARIB25_LIB_NAME}.pc DESTINATION lib/pkgconfig)
-	install(CODE "execute_process(COMMAND ${CMAKE_COMMAND} -DCMD_LDCONFIG=${CMD_LDCONFIG} -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/PostInstall.cmake)")
+	install(CODE "execute_process(COMMAND ${CMAKE_COMMAND} -DLDCONFIG_EXECUTABLE=${LDCONFIG_EXECUTABLE} -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/PostInstall.cmake)")
 	
 	add_custom_target(uninstall ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Uninstall.cmake)
 endif()
diff --git a/cmake/PostInstall.cmake b/cmake/PostInstall.cmake
index 4cee8b4..473a7d3 100644
--- a/cmake/PostInstall.cmake
+++ b/cmake/PostInstall.cmake
@@ -1,6 +1,7 @@
-message(STATUS "Running: ldconfig")
-
-execute_process(COMMAND ${CMD_LDCONFIG} RESULT_VARIABLE ldconfig_result)
-if (NOT ldconfig_result EQUAL 0)
-	message(WARNING "ldconfig failed")
+if(LDCONFIG_EXECUTABLE)
+	message(STATUS "Running: ldconfig")
+	execute_process(COMMAND ${LDCONFIG_EXECUTABLE} RESULT_VARIABLE ldconfig_result)
+	if (NOT ldconfig_result EQUAL 0)
+		message(WARNING "ldconfig failed")
+	endif()
 endif()