--- a/Makefile	Thu Apr 10 11:32:05 2014 +0900
+++ b/Makefile	Thu Apr 10 12:04:39 2014 +0900
@@ -1,4 +1,4 @@
-GCC = clang
+GCC = gcc
 CC = $(GCC) -std=c99 $(CCEXT) $(M)  -fgnu89-inline 
 # -O3
 # MCFLAG = -DUSE_CODE_KEYWORD

--- a/mc-code-i64.c	Thu Apr 10 11:32:05 2014 +0900
+++ b/mc-code-i64.c	Thu Apr 10 12:04:39 2014 +0900
@@ -217,6 +217,8 @@
 
 #else
 
+#ifdef __APPLE__
+
 "\
 #define __DARWIN_1050(x) \n\
 #define __AVAILABILITY_INTERNAL1000_DEP1050\n\
@@ -342,6 +344,146 @@
 #define __extension__\n\
 #define __x86_64__ 1\n\
 "
+#else
+// Linux case
+"\
+#define __DBL_MIN_EXP__ (-1021)\n\
+#define __FLT_MIN__ 1.17549435e-38F\n\
+#define __CHAR_BIT__ 8\n\
+#define __WCHAR_MAX__ 2147483647\n\
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1\n\
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1\n\
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1\n\
+#define __DBL_DENORM_MIN__ 4.9406564584124654e-324\n\
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1\n\
+#define __FLT_EVAL_METHOD__ 0\n\
+#define __unix__ 1\n\
+#define __x86_64 1\n\
+#define __DBL_MIN_10_EXP__ (-307)\n\
+#define __FINITE_MATH_ONLY__ 0\n\
+#define __GNUC_PATCHLEVEL__ 7\n\
+#define __DEC64_MAX_EXP__ 385\n\
+#define __SHRT_MAX__ 32767\n\
+#define __LDBL_MAX__ 1.18973149535723176502e+4932L\n\
+#define __UINTMAX_TYPE__ long unsigned int\n\
+#define __linux 1\n\
+#define __DEC32_EPSILON__ 1E-6DF\n\
+#define __unix 1\n\
+#define __LDBL_MAX_EXP__ 16384\n\
+#define __linux__ 1\n\
+#define __SCHAR_MAX__ 127\n\
+#define __DBL_DIG__ 15\n\
+#define __SIZEOF_INT__ 4\n\
+#define __SIZEOF_POINTER__ 8\n\
+#define __USER_LABEL_PREFIX__ \n\
+#define __STDC_HOSTED__ 1\n\
+#define __LDBL_HAS_INFINITY__ 1\n\
+#define __FLT_EPSILON__ 1.19209290e-7F\n\
+#define __LDBL_MIN__ 3.36210314311209350626e-4932L\n\
+#define __DEC32_MAX__ 9.999999E96DF\n\
+#define __SIZEOF_LONG__ 8\n\
+#define __DECIMAL_DIG__ 21\n\
+#define __gnu_linux__ 1\n\
+#define __LDBL_HAS_QUIET_NAN__ 1\n\
+#define __GNUC__ 4\n\
+#define __MMX__ 1\n\
+#define __FLT_HAS_DENORM__ 1\n\
+#define __SIZEOF_LONG_DOUBLE__ 16\n\
+#define __BIGGEST_ALIGNMENT__ 16\n\
+#define __DBL_MAX__ 1.7976931348623157e+308\n\
+#define __DBL_HAS_INFINITY__ 1\n\
+#define __DEC32_MIN_EXP__ (-94)\n\
+#define __STRICT_ANSI__ 1\n\
+#define __LDBL_HAS_DENORM__ 1\n\
+#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL\n\
+#define __DEC32_MIN__ 1E-95DF\n\
+#define __DBL_MAX_EXP__ 1024\n\
+#define __DEC128_EPSILON__ 1E-33DL\n\
+#define __SSE2_MATH__ 1\n\
+#define __amd64 1\n\
+#define __LONG_LONG_MAX__ 9223372036854775807LL\n\
+#define __SIZEOF_SIZE_T__ 8\n\
+#define __SIZEOF_WINT_T__ 4\n\
+#define __GCC_HAVE_DWARF2_CFI_ASM 1\n\
+#define __GXX_ABI_VERSION 1002\n\
+#define __FLT_MIN_EXP__ (-125)\n\
+#define __DBL_MIN__ 2.2250738585072014e-308\n\
+#define __LP64__ 1\n\
+#define __DECIMAL_BID_FORMAT__ 1\n\
+#define __DEC128_MIN__ 1E-6143DL\n\
+#define __REGISTER_PREFIX__ \n\
+#define __DBL_HAS_DENORM__ 1\n\
+#define __NO_INLINE__ 1\n\
+#define __FLT_MANT_DIG__ 24\n\
+#define __VERSION__ \"4.4.7 20120313 (Red Hat 4.4.7-4)\"\n\
+#define __DEC64_EPSILON__ 1E-15DD\n\
+#define __DEC128_MIN_EXP__ (-6142)\n\
+#define __SIZE_TYPE__ long unsigned int\n\
+#define __ELF__ 1\n\
+#define __FLT_RADIX__ 2\n\
+#define __LDBL_EPSILON__ 1.08420217248550443401e-19L\n\
+#define __GNUC_RH_RELEASE__ 4\n\
+#define __SSE_MATH__ 1\n\
+#define __k8 1\n\
+#define __SIZEOF_PTRDIFF_T__ 8\n\
+#define __x86_64__ 1\n\
+#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF\n\
+#define __FLT_HAS_QUIET_NAN__ 1\n\
+#define __FLT_MAX_10_EXP__ 38\n\
+#define __LONG_MAX__ 9223372036854775807L\n\
+#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL\n\
+#define __FLT_HAS_INFINITY__ 1\n\
+#define __DEC64_MAX__ 9.999999999999999E384DD\n\
+#define __CHAR16_TYPE__ short unsigned int\n\
+#define __DEC64_MANT_DIG__ 16\n\
+#define __STDC_VERSION__ 199901L\n\
+#define __DEC32_MAX_EXP__ 97\n\
+#define __SSE2__ 1\n\
+#define __LDBL_MANT_DIG__ 64\n\
+#define __DBL_HAS_QUIET_NAN__ 1\n\
+#define __k8__ 1\n\
+#define __WCHAR_TYPE__ int\n\
+#define __SIZEOF_FLOAT__ 4\n\
+#define __DEC64_MIN_EXP__ (-382)\n\
+#define __FLT_DIG__ 6\n\
+#define __INT_MAX__ 2147483647\n\
+#define __amd64__ 1\n\
+#define __FLT_MAX_EXP__ 128\n\
+#define __DBL_MANT_DIG__ 53\n\
+#define __DEC64_MIN__ 1E-383DD\n\
+#define __WINT_TYPE__ unsigned int\n\
+#define __SIZEOF_SHORT__ 2\n\
+#define __SSE__ 1\n\
+#define __LDBL_MIN_EXP__ (-16381)\n\
+#define __LDBL_MAX_10_EXP__ 4932\n\
+#define __DBL_EPSILON__ 2.2204460492503131e-16\n\
+#define _LP64 1\n\
+#define __SIZEOF_WCHAR_T__ 4\n\
+#define __DEC_EVAL_METHOD__ 2\n\
+#define __INTMAX_MAX__ 9223372036854775807L\n\
+#define __FLT_DENORM_MIN__ 1.40129846e-45F\n\
+#define __CHAR32_TYPE__ unsigned int\n\
+#define __FLT_MAX__ 3.40282347e+38F\n\
+#define __SIZEOF_DOUBLE__ 8\n\
+#define __FLT_MIN_10_EXP__ (-37)\n\
+#define __INTMAX_TYPE__ long int\n\
+#define __DEC128_MAX_EXP__ 6145\n\
+#define __GNUC_MINOR__ 4\n\
+#define __DEC32_MANT_DIG__ 7\n\
+#define __DBL_MAX_10_EXP__ 308\n\
+#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L\n\
+#define __STDC__ 1\n\
+#define __PTRDIFF_TYPE__ long int\n\
+#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD\n\
+#define __DEC128_MANT_DIG__ 34\n\
+#define __LDBL_MIN_10_EXP__ (-4931)\n\
+#define __SIZEOF_LONG_LONG__ 8\n\
+#define __LDBL_DIG__ 18\n\
+#define __GNUC_GNU_INLINE__ 1\n\
+"
+#endif 
+
+
 #endif
 
 #ifdef __APPLE__