fixing FORCE_INLINE for older compilers (#330)

diff --git a/NEWS b/NEWS
index 903350032124b568404eca03cf51b9b621e57e06..726a9e38d570a9299991c6a4ed106dec57fc00f3 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,7 +1,8 @@
 v1.0.1
-New : contrib/pzstd, parallel version of zstd, by Nick Terrell 
+New : contrib/pzstd, parallel version of zstd, by Nick Terrell
 Fixed : CLI -d output to stdout by default when input is stdin (#322)
 Fixed : CLI correctly detects console on Mac OS-X
+Fixed : zstd-pgo, reported by octoploid (#329)
 
 v1.0.0
 Change Licensing, all project is now BSD, Copyright Facebook

diff --git a/lib/common/fse_decompress.c b/lib/common/fse_decompress.c
index 032e657710b2eecd8519af024bbbba854c1d7f6f..7492a3832b712647d5b2982de3ea0a2bd4f36566 100644 (file)
--- a/lib/common/fse_decompress.c
+++ b/lib/common/fse_decompress.c
@@ -42,12 +42,15 @@
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 

diff --git a/lib/common/xxhash.c b/lib/common/xxhash.c
index f462c57f8d8ff69d2bec57ab3cbfbf9ea63dc1ef..29e4fa628f3683cbed8796b168e3d1e15fe0674d 100644 (file)
--- a/lib/common/xxhash.c
+++ b/lib/common/xxhash.c
@@ -115,7 +115,7 @@ static void* XXH_memcpy(void* dest, const void* src, size_t size) { return memcp
 #  pragma warning(disable : 4127)      /* disable: C4127: conditional expression is constant */
 #  define FORCE_INLINE static __forceinline
 #else
-#  if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
 #    ifdef __GNUC__
 #      define FORCE_INLINE static inline __attribute__((always_inline))
 #    else

diff --git a/lib/compress/fse_compress.c b/lib/compress/fse_compress.c
index 386b2c01085b56f5af937d50bf15f714c8860910..679dbdb83be98d574336a0025a75c99d258d4ac1 100644 (file)
--- a/lib/compress/fse_compress.c
+++ b/lib/compress/fse_compress.c
@@ -41,12 +41,15 @@
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 

diff --git a/lib/compress/huf_compress.c b/lib/compress/huf_compress.c
index c2dd13c87624564a8b4d0f3658f9122f65798ea4..b7d3d77a2413ae3c1973445df2edf7fbf55613ef 100644 (file)
--- a/lib/compress/huf_compress.c
+++ b/lib/compress/huf_compress.c
@@ -35,24 +35,8 @@
 /* **************************************************************
 *  Compiler specifics
 ****************************************************************/
-#if defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
-/* inline is defined */
-#elif defined(_MSC_VER)
-#  define inline __inline
-#else
-#  define inline /* disable inline */
-#endif
-
-
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index 0116136c02aa5d2f5c2eb7859930d1975aa597d5..723d40559e6661a37c24432daecfffa43a0125bb 100644 (file)
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -17,11 +17,15 @@
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 

diff --git a/lib/decompress/huf_decompress.c b/lib/decompress/huf_decompress.c
index a5521bd365ae45801e8cb5240a276cafff40cd2b..e94fa83ccd7d230732f9ceebd8e853a9450fd707 100644 (file)
--- a/lib/decompress/huf_decompress.c
+++ b/lib/decompress/huf_decompress.c
@@ -43,16 +43,8 @@
 #  define inline /* disable inline */
 #endif
 
-
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/decompress/zstd_decompress.c b/lib/decompress/zstd_decompress.c
index fb1ee35a0dfb4943af1c97b0bf5f50c1c0200a25..762e972ce9b02a107107e0679df01cd50c2c4c7b 100644 (file)
--- a/lib/decompress/zstd_decompress.c
+++ b/lib/decompress/zstd_decompress.c
@@ -67,11 +67,15 @@
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
 #  pragma warning(disable : 4100)        /* disable: C4100: unreferenced formal parameter */
 #else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 

diff --git a/lib/legacy/zstd_v01.c b/lib/legacy/zstd_v01.c
index 94847d5c893298fd77823766170fe66c5ba4b929..1181cf6e9546aa51d5a4b989a326891bc912891a 100644 (file)
--- a/lib/legacy/zstd_v01.c
+++ b/lib/legacy/zstd_v01.c
@@ -139,11 +139,15 @@ typedef struct
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
 #  define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
@@ -1300,17 +1304,9 @@ typedef enum { ZSTD_LIST_ERRORS(ZSTD_GENERATE_ENUM) } ZSTD_errorCodes;   /* expo
 #endif
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
-#else
-#  define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/legacy/zstd_v02.c b/lib/legacy/zstd_v02.c
index af1366208ada1223266a9fd144337caef29faac1..b306db9a2936b5e770ac5be8dc915d20f26f6441 100644 (file)
--- a/lib/legacy/zstd_v02.c
+++ b/lib/legacy/zstd_v02.c
@@ -1122,12 +1122,15 @@ typedef struct ZSTD_DCtx_s ZSTD_DCtx;
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
@@ -1595,15 +1598,7 @@ static size_t FSE_decompress(void* dst, size_t maxDstSize, const void* cSrc, siz
 
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 
@@ -2790,17 +2785,9 @@ static size_t HUF_decompress (void* dst, size_t dstSize, const void* cSrc, size_
 #endif
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
-#else
-#  define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/legacy/zstd_v03.c b/lib/legacy/zstd_v03.c
index 637204deb0354f8368f81aba4a4e6429c84a19b5..64cfdf49ada7eed1cf429b5361b416c888673c16 100644 (file)
--- a/lib/legacy/zstd_v03.c
+++ b/lib/legacy/zstd_v03.c
@@ -1122,12 +1122,15 @@ typedef struct ZSTD_DCtx_s ZSTD_DCtx;
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
@@ -1588,25 +1591,13 @@ static size_t FSE_decompress(void* dst, size_t maxDstSize, const void* cSrc, siz
 #if defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
 /* inline is defined */
 #elif defined(_MSC_VER)
+#  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  define inline __inline
 #else
 #  define inline /* disable inline */
 #endif
 
 
-#ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
-#  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
-#endif
-
-
 /****************************************************************
 *  Includes
 ****************************************************************/
@@ -2432,17 +2423,11 @@ static size_t HUF_decompress (void* dst, size_t dstSize, const void* cSrc, size_
 #endif
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
 #else
 #  define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/legacy/zstd_v04.c b/lib/legacy/zstd_v04.c
index 1239bdb3ab2afccdd8fc02d6a86f10c42715bb3c..b2c3ab00f416fef98e3ccf649b4fc631d5900db0 100644 (file)
--- a/lib/legacy/zstd_v04.c
+++ b/lib/legacy/zstd_v04.c
@@ -1380,12 +1380,15 @@ MEM_STATIC unsigned FSE_endOfDState(const FSE_DState_t* DStatePtr)
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
@@ -2021,15 +2024,7 @@ static size_t HUF_decompress4X4_usingDTable(void* dst, size_t maxDstSize, const
 
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 
@@ -2837,17 +2832,9 @@ static size_t HUF_decompress (void* dst, size_t dstSize, const void* cSrc, size_
 *  Compiler specifics
 *********************************************************/
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
-#else
-#  define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/legacy/zstd_v05.c b/lib/legacy/zstd_v05.c
index 96fdf35e9e48e1b49a86dcd0c5fa655d0ad0d52f..8434f613cbb706ac39b02439d3bb5572371c553e 100644 (file)
--- a/lib/legacy/zstd_v05.c
+++ b/lib/legacy/zstd_v05.c
@@ -1380,12 +1380,15 @@ MEM_STATIC unsigned FSEv05_endOfDState(const FSEv05_DState_t* DStatePtr)
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
@@ -2002,14 +2005,7 @@ size_t HUFv05_decompress1X4_usingDTable(void* dst, size_t maxDstSize, const void
 
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 
@@ -2858,17 +2854,9 @@ size_t HUFv05_decompress (void* dst, size_t dstSize, const void* cSrc, size_t cS
 *  Compiler specifics
 *********************************************************/
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
-#else
-#  define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/legacy/zstd_v06.c b/lib/legacy/zstd_v06.c
index 6bd463b6e90c93dc063ec8c410ac002989836ebb..8823614846a5d48ab2f0ead92f87fb54dbdee9d5 100644 (file)
--- a/lib/legacy/zstd_v06.c
+++ b/lib/legacy/zstd_v06.c
@@ -1665,12 +1665,15 @@ size_t FSEv06_readNCount (short* normalizedCounter, unsigned* maxSVPtr, unsigned
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
@@ -2238,14 +2241,7 @@ MEM_STATIC size_t HUFv06_readStats(BYTE* huffWeight, size_t hwSize, U32* rankSta
 
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 
@@ -3054,16 +3050,9 @@ const char* ZBUFFv06_getErrorName(size_t errorCode) { return ERR_getErrorName(er
 *  Compiler specifics
 *********************************************************/
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 

diff --git a/lib/legacy/zstd_v07.c b/lib/legacy/zstd_v07.c
index f948069e06ec6177a3c802d0e5f781ddb7a42669..b634d624300874b8d85e7414754e38725ee509b6 100644 (file)
--- a/lib/legacy/zstd_v07.c
+++ b/lib/legacy/zstd_v07.c
@@ -1680,17 +1680,18 @@ size_t HUFv07_readStats(BYTE* huffWeight, size_t hwSize, U32* rankStats,
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4214)        /* disable: C4214: non-int bitfields */
 #else
-#  ifdef __GNUC__
-#    define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#    define FORCE_INLINE static inline __attribute__((always_inline))
+#  if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   /* C99 */
+#    ifdef __GNUC__
+#      define FORCE_INLINE static inline __attribute__((always_inline))
+#    else
+#      define FORCE_INLINE static inline
+#    endif
 #  else
-#    define FORCE_INLINE static inline
-#  endif
+#    define FORCE_INLINE static
+#  endif /* __STDC_VERSION__ */
 #endif
 
 
-
-
 /* **************************************************************
 *  Error Management
 ****************************************************************/
@@ -2006,14 +2007,7 @@ size_t FSEv07_decompress(void* dst, size_t maxDstSize, const void* cSrc, size_t
 
 
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif
 
 
@@ -3176,17 +3170,10 @@ static const ZSTDv07_customMem defaultCustomMem = { ZSTDv07_defaultAllocFunction
 *  Compiler specifics
 *********************************************************/
 #ifdef _MSC_VER    /* Visual Studio */
-#  define FORCE_INLINE static __forceinline
 #  include <intrin.h>                    /* For Visual 2005 */
 #  pragma warning(disable : 4127)        /* disable: C4127: conditional expression is constant */
 #  pragma warning(disable : 4324)        /* disable: C4324: padded structure */
 #  pragma warning(disable : 4100)        /* disable: C4100: unreferenced formal parameter */
-#else
-#  ifdef __GNUC__
-#    define FORCE_INLINE static inline __attribute__((always_inline))
-#  else
-#    define FORCE_INLINE static inline
-#  endif
 #endif