diff -ruN yajl-2.1.0-orig/CMakeLists.txt yajl-2.1.0/CMakeLists.txt
--- yajl-2.1.0-orig/CMakeLists.txt	2014-03-19 04:58:29.000000000 +0100
+++ yajl-2.1.0/CMakeLists.txt	2016-06-15 11:39:01.048338100 +0200
@@ -28,7 +28,7 @@
 
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
 
-IF (WIN32)
+IF (MSVC)
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4")
   ADD_DEFINITIONS(-DWIN32)
   SET(linkFlags "/PDB:NONE /INCREMENTAL:NO /OPT:NOREF /OPT:NOICF")
@@ -46,7 +46,7 @@
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4996 /wd4255 /wd4130 /wd4100 /wd4711")
   SET(CMAKE_C_FLAGS_DEBUG "/D DEBUG /Od /Z7")
   SET(CMAKE_C_FLAGS_RELEASE "/D NDEBUG /O2")
-ELSE (WIN32)
+ELSE (MSVC)
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
   IF(CMAKE_COMPILER_IS_GNUCC)
     INCLUDE(CheckCCompilerFlag)
@@ -60,7 +60,7 @@
 
   SET(CMAKE_C_FLAGS_DEBUG "-DDEBUG -g")
   SET(CMAKE_C_FLAGS_RELEASE "-DNDEBUG -O2 -Wuninitialized")
-ENDIF (WIN32)
+ENDIF (MSVC)
 
 
 ADD_SUBDIRECTORY(src)