$NetBSD: patch-lib_CMakeLists.txt,v 1.1 2025/10/17 08:08:32 wiz Exp $

boost 1.89 made system header-only.

--- lib/CMakeLists.txt.orig	2021-11-26 06:44:20.000000000 +0000
+++ lib/CMakeLists.txt
@@ -85,10 +85,10 @@ target_link_libraries(${APNGASM_STATIC_L
 #endif ()
 #set(Boost_USE_STATIC_LIBS OFF)
 #SET(CMAKE_FIND_LIBRARY_SUFFIXES .dll.a .a .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
-find_package(Boost REQUIRED COMPONENTS program_options regex system)
+find_package(Boost REQUIRED COMPONENTS program_options regex)
 include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
-target_link_libraries(${APNGASM_DYNAMIC_LIB_TARGET} Boost::program_options Boost::regex Boost::system)
-target_link_libraries(${APNGASM_STATIC_LIB_TARGET} Boost::program_options Boost::regex Boost::system)
+target_link_libraries(${APNGASM_DYNAMIC_LIB_TARGET} Boost::program_options Boost::regex)
+target_link_libraries(${APNGASM_STATIC_LIB_TARGET} Boost::program_options Boost::regex)
 
 get_target_property(APNGASM_DYNAMIC_LIB_TARGET_NAME ${APNGASM_DYNAMIC_LIB_TARGET} OUTPUT_NAME)
 get_target_property(APNGASM_STATIC_LIB_TARGET_NAME ${APNGASM_STATIC_LIB_TARGET} OUTPUT_NAME)