Merge branch 'master' of https://github.com/hyperrealm/libconfig

CMakeLists.txt

 cmake_minimum_required(VERSION 3.1)
 
 # Extract version from configure.ac.
-set(VERSION_REGEX "^AC_INIT\\(libconfig,[ \t]+([0-9\.]+),.*")
+set(VERSION_REGEX "^AC_INIT\\(libconfig,[ \t]+([0-9.]+),.*")
 file(STRINGS "configure.ac"
   VERSION_STRING REGEX ${VERSION_REGEX})
 string(REGEX REPLACE ${VERSION_REGEX} "\\1" VERSION_STRING "${VERSION_STRING}")

tests/CMakeLists.txt

@@ -4,6 +4,8 @@ else()
     set(libname "config")
 endif()
 
+include_directories(${CMAKE_SOURCE_DIR}/lib)
+
 add_executable(libconfig_tests
     tests.c
 )