Fix compiler warnings, fix issue 52.

CMakeLists.txt

@@ -2,14 +2,20 @@ PROJECT(libnfc C)
 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 SET(VERSION_MAJOR "1")
 SET(VERSION_MINOR "3")
-SET(VERSION_PATCH "0")
+SET(VERSION_PATCH "2")
 
 SET(VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 
 SET(PACKAGE_NAME "libnfc")
 SET(PACKAGE_VERSION ${VERSION})
 SET(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
+
+IF(NOT MSVC)
+  SET(_XOPEN_SOURCE 600)
+ENDIF(NOT MSVC)
+
 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake ${CMAKE_CURRENT_SOURCE_DIR}/config.h)
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
 
 # make it easy to locate CMake modules for finding libraries
 SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake_modules/")
@@ -50,6 +56,8 @@ IF(LIBNFC_DEBUG_OUTPUT)
   ADD_DEFINITIONS(-DDEBUG -g3)
 ENDIF(LIBNFC_DEBUG_OUTPUT)
 
+ADD_DEFINITIONS("-DHAVE_CONFIG_H")
+
 ADD_DEFINITIONS(-Wall -pedantic -std=c99)
 
 IF(NOT MSVC)

config.h.cmake

@@ -1,3 +1,4 @@
 #cmakedefine PACKAGE_NAME "@PACKAGE_NAME@"
 #cmakedefine PACKAGE_VERSION "@PACKAGE_VERSION@"
 #cmakedefine PACKAGE_STRING "@PACKAGE_STRING@"
+#cmakedefine _XOPEN_SOURCE "@_XOPEN_SOURCE@"