$NetBSD$

# Portability
--- Inchworm/CMakeLists.txt.orig	2018-09-01 15:19:04 UTC
+++ Inchworm/CMakeLists.txt
@@ -18,7 +18,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} 
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2 -march=native -DNDEBUG ")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g -O0")
 
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lm -ldl ")
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lm ")
 
 MESSAGE(STATUS "system: ${CMAKE_SYSTEM_NAME}")
 if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")