Added option to build the static library with PIC

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3ae869..6076f38 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 2.8.9)
 
 if(NOT DEFINED CMAKE_BUILD_TYPE)
        set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type")
@@ -102,6 +102,7 @@ option(LWS_WITH_SQLITE3 "Require SQLITE3 support" OFF)
 option(LWS_WITH_SMTP "Provide SMTP support" OFF)
 option(LWS_WITH_ESP8266 "Build for ESP8266" OFF)
 option(LWS_WITH_NO_LOGS "Disable all logging from being compiled in" OFF)
+option(LWS_STATIC_PIC "Build the static version of the library with position-independent code" OFF)
 
 if (LWS_WITH_LWSWS)
  message(STATUS "LWS_WITH_LWSWS --> Enabling LWS_WITH_PLUGINS and LWS_WITH_LIBUV")
@@ -705,6 +706,9 @@ source_group("Sources"          FILES ${SOURCES})
 set(LWS_LIBRARIES)
 
 if (LWS_WITH_STATIC)
+    if (LWS_STATIC_PIC)
+        set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+    endif()
        add_library(websockets STATIC
                                ${HDR_PRIVATE}
                                ${HDR_PUBLIC}
@@ -1617,6 +1621,7 @@ message(" LWS_WITH_LEJP = ${LWS_WITH_LEJP}")
 message(" LWS_WITH_LEJP_CONF = ${LWS_WITH_LEJP_CONF}")
 message(" LWS_WITH_SMTP = ${LWS_WITH_SMTP}")
 message(" LWS_WITH_GENERIC_SESSIONS = ${LWS_WITH_GENERIC_SESSIONS}")
+message(" LWS_STATIC_PIC = ${LWS_STATIC_PIC}")
 
 
 message("---------------------------------------------------------------------")