1# 2# libwebsockets - small server side websockets and web server implementation 3# 4# Copyright (C) 2010 - 2020 Andy Green <andy@warmcat.com> 5# 6# Permission is hereby granted, free of charge, to any person obtaining a copy 7# of this software and associated documentation files (the "Software"), to 8# deal in the Software without restriction, including without limitation the 9# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10# sell copies of the Software, and to permit persons to whom the Software is 11# furnished to do so, subject to the following conditions: 12# 13# The above copyright notice and this permission notice shall be included in 14# all copies or substantial portions of the Software. 15# 16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 22# IN THE SOFTWARE. 23# 24# The strategy is to only export to PARENT_SCOPE 25# 26# - changes to LIB_LIST 27# - includes via include_directories 28# 29# and keep everything else private 30 31include_directories(.) 32 33set(LWS_LIBEV_LIBRARIES CACHE PATH "Path to the libev library") 34set(LWS_LIBEV_INCLUDE_DIRS CACHE PATH "Path to the libev include directory") 35 36if (NOT LIBEV_FOUND) 37 find_path(LIBEV_INCLUDE_DIRS NAMES ev.h) 38 find_library(LIBEV_LIBRARIES NAMES ev) 39endif() 40message("libev include dir: ${LIBEV_INCLUDE_DIRS}") 41message("libev libraries: ${LIBEV_LIBRARIES}") 42include_directories("${LIBEV_INCLUDE_DIRS}") 43 44if ("${LWS_LIBEV_LIBRARIES}" STREQUAL "" OR "${LWS_LIBEV_INCLUDE_DIRS}" STREQUAL "") 45else() 46 set(LIBEV_LIBRARIES ${LWS_LIBEV_LIBRARIES}) 47 set(LIBEV_INCLUDE_DIRS ${LWS_LIBEV_INCLUDE_DIRS}) 48endif() 49 50if (LWS_WITH_EVLIB_PLUGINS) 51 52 create_evlib_plugin( 53 evlib_ev 54 libev.c 55 private-lib-event-libs-libev.h 56 ${LIBEV_LIBRARIES}) 57 58else() 59 60 list(APPEND LIB_LIST ${LIBEV_LIBRARIES}) 61 62 list(APPEND SOURCES 63 event-libs/libev/libev.c) 64# see README.build.md for discussion of why of the supported event libs, 65# only libev cannot cope with -Werror 66 set_source_files_properties(event-libs/libev/libev.c 67 PROPERTIES COMPILE_FLAGS "-Wno-error" ) 68endif() 69 70set(CMAKE_REQUIRED_LIBRARIES ${LIB_LIST}) 71 72CHECK_C_SOURCE_COMPILES( 73 "#include <ev.h> 74 int main(int argc, char **argv) { return EVBACKEND_LINUXAIO; } 75 " LWS_HAVE_EVBACKEND_LINUXAIO) 76 77CHECK_C_SOURCE_COMPILES( 78 "#include <ev.h> 79 int main(int argc, char **argv) { return EVBACKEND_IOURING; } 80 " LWS_HAVE_EVBACKEND_IOURING) 81 82# 83# Keep explicit parent scope exports at end 84# 85 86exports_to_parent_scope() 87set(LWS_HAVE_EVBACKEND_LINUXAIO ${LWS_HAVE_EVBACKEND_LINUXAIO} PARENT_SCOPE) 88set(LWS_HAVE_EVBACKEND_IOURING ${LWS_HAVE_EVBACKEND_IOURING} PARENT_SCOPE) 89