Allow disabling binary compilation (useful for multilib builds in Gentoo)

build/CMakeLists.txt

@@ -5,6 +5,7 @@ project ( "i2pd" )
 option(WITH_AESNI     "Use AES-NI instructions set" OFF)
 option(WITH_HARDENING "Use hardening compiler flags" OFF)
 option(WITH_LIBRARY   "Build library" ON)
+option(WITH_BINARY    "Build binary" ON)
 option(WITH_STATIC    "Static build" OFF)
 
 # paths
@@ -140,12 +141,14 @@ message(STATUS "Options:")
 message(STATUS "  AESNI            : ${WITH_AESNI}")
 message(STATUS "  HARDENING        : ${WITH_HARDENING}")
 message(STATUS "  LIBRARY          : ${WITH_LIBRARY}")
+message(STATUS "  BINARY           : ${WITH_BINARY}")
 message(STATUS "  STATIC BUILD     : ${WITH_STATIC}")
 message(STATUS "---------------------------------------")
 
 #Handle paths nicely
 include(GNUInstallDirs)
 
+if (WITH_BINARY)
   add_executable ( "${PROJECT_NAME}-bin" ${COMMON_SRC} ${DAEMON_SRC})
   set_target_properties("${PROJECT_NAME}-bin" PROPERTIES OUTPUT_NAME "${PROJECT_NAME}")
 
@@ -161,6 +164,7 @@ endif ()
   target_link_libraries( "${PROJECT_NAME}-bin" ${Boost_LIBRARIES} ${CRYPTO++_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} )
 
   install(TARGETS "${PROJECT_NAME}-bin" RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} )
+endif ()
 
 if (WITH_LIBRARY)
   add_library(${PROJECT_NAME} SHARED ${COMMON_SRC} ${LIBRARY_SRC})