diff --git a/libconfig-1.4.9/contrib/cmake/CMakeFiles/CompilerIdC/CMakeCCompilerId.c b/libconfig-1.4.9/contrib/cmake/CMakeFiles/CompilerIdC/CMakeCCompilerId.c
new file mode 100644
index 0000000000000000000000000000000000000000..7fd008853e62a4a9d2037765aa258bd53527ed1e
--- /dev/null
+++ b/libconfig-1.4.9/contrib/cmake/CMakeFiles/CompilerIdC/CMakeCCompilerId.c
@@ -0,0 +1,182 @@
+#ifdef __cplusplus
+# error "A C++ compiler has been selected for C."
+#endif
+
+#if defined(__18CXX)
+# define ID_VOID_MAIN
+#endif
+
+#if defined(__INTEL_COMPILER) || defined(__ICC)
+# define COMPILER_ID "Intel"
+
+#elif defined(__BORLANDC__)
+# define COMPILER_ID "Borland"
+
+#elif defined(__WATCOMC__)
+# define COMPILER_ID "Watcom"
+
+#elif defined(__SUNPRO_C)
+# define COMPILER_ID "SunPro"
+
+#elif defined(__HP_cc)
+# define COMPILER_ID "HP"
+
+#elif defined(__DECC)
+# define COMPILER_ID "Compaq"
+
+#elif defined(__IBMC__)
+# define COMPILER_ID "VisualAge"
+
+#elif defined(__PGI)
+# define COMPILER_ID "PGI"
+
+#elif defined(__GNUC__)
+# define COMPILER_ID "GNU"
+
+#elif defined(_MSC_VER)
+# define COMPILER_ID "MSVC"
+
+#elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
+/* Analog Devices C++ compiler for Blackfin, TigerSHARC and
+   SHARC (21000) DSPs */
+# define COMPILER_ID "ADSP"
+
+/* IAR Systems compiler for embedded systems.
+   http://www.iar.com
+   Not supported yet by CMake
+#elif defined(__IAR_SYSTEMS_ICC__)
+# define COMPILER_ID "IAR" */
+
+/* sdcc, the small devices C compiler for embedded systems,
+   http://sdcc.sourceforge.net  */
+#elif defined(SDCC)
+# define COMPILER_ID "SDCC"
+
+#elif defined(_COMPILER_VERSION)
+# define COMPILER_ID "MIPSpro"
+
+/* This compiler is either not known or is too old to define an
+   identification macro.  Try to identify the platform and guess that
+   it is the native compiler.  */
+#elif defined(__sgi)
+# define COMPILER_ID "MIPSpro"
+
+#elif defined(__hpux) || defined(__hpua)
+# define COMPILER_ID "HP"
+
+#else /* unknown compiler */
+# define COMPILER_ID ""
+
+#endif
+
+/* Construct the string literal in pieces to prevent the source from
+   getting matched.  Store it in a pointer rather than an array
+   because some compilers will just produce instructions to fill the
+   array rather than assigning a pointer to a static array.  */
+char* info_compiler = "INFO" ":" "compiler[" COMPILER_ID "]";
+
+/* Identify known platforms by name.  */
+#if defined(__linux) || defined(__linux__) || defined(linux)
+# define PLATFORM_ID "Linux"
+
+#elif defined(__CYGWIN__)
+# define PLATFORM_ID "Cygwin"
+
+#elif defined(__MINGW32__)
+# define PLATFORM_ID "MinGW"
+
+#elif defined(__APPLE__)
+# define PLATFORM_ID "Darwin"
+
+#elif defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
+# define PLATFORM_ID "Windows"
+
+#elif defined(__FreeBSD__) || defined(__FreeBSD)
+# define PLATFORM_ID "FreeBSD"
+
+#elif defined(__NetBSD__) || defined(__NetBSD)
+# define PLATFORM_ID "NetBSD"
+
+#elif defined(__OpenBSD__) || defined(__OPENBSD)
+# define PLATFORM_ID "OpenBSD"
+
+#elif defined(__sun) || defined(sun)
+# define PLATFORM_ID "SunOS"
+
+#elif defined(_AIX) || defined(__AIX) || defined(__AIX__) || defined(__aix) || defined(__aix__)
+# define PLATFORM_ID "AIX"
+
+#elif defined(__sgi) || defined(__sgi__) || defined(_SGI)
+# define PLATFORM_ID "IRIX"
+
+#elif defined(__hpux) || defined(__hpux__)
+# define PLATFORM_ID "HP-UX"
+
+#elif defined(__HAIKU) || defined(__HAIKU__) || defined(_HAIKU)
+# define PLATFORM_ID "Haiku"
+/* Haiku also defines __BEOS__ so we must 
+   put it prior to the check for __BEOS__
+*/
+
+#elif defined(__BeOS) || defined(__BEOS__) || defined(_BEOS)
+# define PLATFORM_ID "BeOS"
+
+#elif defined(__QNX__) || defined(__QNXNTO__)
+# define PLATFORM_ID "QNX"
+
+#elif defined(__tru64) || defined(_tru64) || defined(__TRU64__)
+# define PLATFORM_ID "Tru64"
+
+#elif defined(__riscos) || defined(__riscos__)
+# define PLATFORM_ID "RISCos"
+
+#elif defined(__sinix) || defined(__sinix__) || defined(__SINIX__)
+# define PLATFORM_ID "SINIX"
+
+#elif defined(__UNIX_SV__)
+# define PLATFORM_ID "UNIX_SV"
+
+#elif defined(__bsdos__)
+# define PLATFORM_ID "BSDOS"
+
+#elif defined(_MPRAS) || defined(MPRAS)
+# define PLATFORM_ID "MP-RAS"
+
+#elif defined(__osf) || defined(__osf__)
+# define PLATFORM_ID "OSF1"
+
+#elif defined(_SCO_SV) || defined(SCO_SV) || defined(sco_sv)
+# define PLATFORM_ID "SCO_SV"
+
+#elif defined(__ultrix) || defined(__ultrix__) || defined(_ULTRIX)
+# define PLATFORM_ID "ULTRIX"
+
+#elif defined(__XENIX__) || defined(_XENIX) || defined(XENIX)
+# define PLATFORM_ID "Xenix"
+
+#else /* unknown platform */
+# define PLATFORM_ID ""
+
+#endif
+
+/* Construct the string literal in pieces to prevent the source from
+   getting matched.  Store it in a pointer rather than an array
+   because some compilers will just produce instructions to fill the
+   array rather than assigning a pointer to a static array.  */
+char* info_platform = "INFO" ":" "platform[" PLATFORM_ID "]";
+
+
+/*--------------------------------------------------------------------------*/
+
+#ifdef ID_VOID_MAIN
+void main() {}
+#else
+int main(int argc, char* argv[])
+{
+  int require = 0;
+  require += info_compiler[argc];
+  require += info_platform[argc];
+  (void)argv;
+  return require;
+}
+#endif