Removed even more warning that was found with -Wunused

- Removed test if HA_FT_WTYPE == HA_KEYTYPE_FLOAT as this never worked
  (HA_KEYTYPE_FLOAT is an enum)
- Define HA_FT_MAXLEN to 126 (was tested before but never defined)

client/mysql_upgrade.c

@@ -1144,7 +1144,7 @@ int main(int argc, char **argv)
   load_defaults_or_exit("my", load_default_groups, &argc, &argv);
   defaults_argv= argv; /* Must be freed by 'free_defaults' */
 
-#if __WIN__
+#if defined(__WIN__)
   if (GetModuleFileName(NULL, self_name, FN_REFLEN) == 0)
 #endif
   {

sql-common/client_plugin.c

@@ -28,7 +28,7 @@
   There is no reference counting and no unloading either.
 */
 
-#if _MSC_VER
+#if defined(_MSC_VER)
 /* Silence warnings about variable 'unused' being used. */
 #define FORCE_INIT_OF_VARS 1
 #endif

storage/innobase/buf/buf0buf.cc

@@ -7357,10 +7357,10 @@ buf_pool_reserve_tmp_slot(
 		/* Both snappy and lzo compression methods require that
 		output buffer used for compression is bigger than input
 		buffer. Increase the allocated buffer size accordingly. */
-#if HAVE_SNAPPY
+#if defined(HAVE_SNAPPY)
 		size = snappy_max_compressed_length(size);
 #endif
-#if HAVE_LZO
+#if defined(HAVE_LZO)
 		size += LZO1X_1_15_MEM_COMPRESS;
 #endif
 		free_slot->comp_buf = static_cast<byte*>(aligned_malloc(size, srv_page_size));

storage/innobase/buf/buf0lru.cc

@@ -1208,10 +1208,8 @@ buf_LRU_old_adjust_len(
 	ut_ad(buf_pool_mutex_own(buf_pool));
 	ut_ad(buf_pool->LRU_old_ratio >= BUF_LRU_OLD_RATIO_MIN);
 	ut_ad(buf_pool->LRU_old_ratio <= BUF_LRU_OLD_RATIO_MAX);
-#if BUF_LRU_OLD_RATIO_MIN * BUF_LRU_OLD_MIN_LEN <= BUF_LRU_OLD_RATIO_DIV * (BUF_LRU_OLD_TOLERANCE + 5)
-# error "BUF_LRU_OLD_RATIO_MIN * BUF_LRU_OLD_MIN_LEN <= BUF_LRU_OLD_RATIO_DIV * (BUF_LRU_OLD_TOLERANCE + 5)"
-#endif
 #ifdef UNIV_LRU_DEBUG
+        compile_time_assert(BUF_LRU_OLD_RATIO_MIN * BUF_LRU_OLD_MIN_LEN <= BUF_LRU_OLD_RATIO_DIV * (BUF_LRU_OLD_TOLERANCE + 5));
 	/* buf_pool->LRU_old must be the first item in the LRU list
 	whose "old" flag is set. */
 	ut_a(buf_pool->LRU_old->old);

storage/maria/ma_create.c

@@ -1432,7 +1432,7 @@ int _ma_update_state_lsns(MARIA_SHARE *share, LSN lsn, TrID create_trid,
      @retval 1      error (disk problem)
 */
 
-#if (_MSC_VER == 1310)
+#if defined(_MSC_VER) && (_MSC_VER == 1310)
 /*
  Visual Studio 2003 compiler produces internal compiler error
  in this function. Disable optimizations to workaround.
@@ -1505,6 +1505,6 @@ int _ma_update_state_lsns_sub(MARIA_SHARE *share, LSN lsn, TrID create_trid,
                     MARIA_FILE_CREATE_TRID_OFFSET, MYF(MY_NABP)) ||
           (do_sync && mysql_file_sync(file, MYF(0))));
 }
-#if (_MSC_VER == 1310)
+#if defined(_MSC_VER) && (_MSC_VER == 1310)
 #pragma optimize("",on)
 #endif /*VS2003 compiler bug workaround*/

storage/maria/ma_ft_nlq_search.c

@@ -77,11 +77,7 @@ static int walk_and_match(FT_WORD *word, uint32 count, ALL_IN_ONE *aio)
   my_off_t     key_root;
   uint         extra=HA_FT_WLEN+share->rec_reflength;
   MARIA_KEY    key;
-#if HA_FT_WTYPE == HA_KEYTYPE_FLOAT
   float        tmp_weight;
-#else
-#error
-#endif
   DBUG_ENTER("walk_and_match");
   LINT_INIT_STRUCT(subkeys);
 
@@ -139,12 +135,8 @@ static int walk_and_match(FT_WORD *word, uint32 count, ALL_IN_ONE *aio)
       r= _ma_search_first(info, keyinfo, key_root);
       goto do_skip;
     }
-#if HA_FT_WTYPE == HA_KEYTYPE_FLOAT
     /* The weight we read was actually a float */
     tmp_weight= subkeys.f;
-#else
-#error
-#endif
   /* The following should be safe, even if we compare doubles */
     if (tmp_weight==0)
       DBUG_RETURN(doc_cnt); /* stopword, doc_cnt should be 0 */

storage/maria/ma_ft_update.c

@@ -289,17 +289,10 @@ MARIA_KEY *_ma_ft_make_key(MARIA_HA *info, MARIA_KEY *key, uint keynr,
                            FT_WORD *wptr, my_off_t filepos)
 {
   uchar buf[HA_FT_MAXBYTELEN+16];
+    float weight=(float) ((filepos==HA_OFFSET_ERROR) ? 0 : wptr->weight);
   DBUG_ENTER("_ma_ft_make_key");
 
-#if HA_FT_WTYPE == HA_KEYTYPE_FLOAT
-  {
-    float weight=(float) ((filepos==HA_OFFSET_ERROR) ? 0 : wptr->weight);
   mi_float4store(buf,weight);
-  }
-#else
-#error
-#endif
-
   int2store(buf+HA_FT_WLEN,wptr->len);
   memcpy(buf+HA_FT_WLEN+2,wptr->pos,wptr->len);
   /* Can't be spatial so it's ok to call _ma_make_key directly here */

storage/maria/ma_fulltext.h

@@ -20,6 +20,11 @@
 #include "maria_def.h"
 #include "ft_global.h"
 
+/* If HA_FT_MAXLEN is change to 127 or over, it must be tested properly as
+   it may cause different representation on disk for full text indexes
+*/
+#define HA_FT_MAXLEN 126
+
 int  _ma_ft_cmp(MARIA_HA *, uint, const uchar *, const uchar *);
 int  _ma_ft_add(MARIA_HA *, uint, uchar *, const uchar *, my_off_t);
 int  _ma_ft_del(MARIA_HA *, uint, uchar *, const uchar *, my_off_t);

storage/maria/ma_pagecache.c

@@ -985,7 +985,7 @@ static int flush_all_key_blocks(PAGECACHE *pagecache)
      resizing, due to the page locking specific to this page cache.
      So we disable it for now.
 */
-#if NOT_USED /* keep disabled until code is fixed see above !! */
+#ifdef NOT_USED /* keep disabled until code is fixed see above !! */
 size_t resize_pagecache(PAGECACHE *pagecache,
                        size_t use_mem, uint division_limit,
                        uint age_threshold, uint changed_blocks_hash_size)

storage/myisam/ft_nlq_search.c

@@ -75,11 +75,7 @@ static int walk_and_match(FT_WORD *word, uint32 count, ALL_IN_ONE *aio)
   MI_KEYDEF    *keyinfo=info->s->keyinfo+aio->keynr;
   my_off_t     key_root;
   uint         extra= HA_FT_WLEN + info->s->rec_reflength;
-#if HA_FT_WTYPE == HA_KEYTYPE_FLOAT
   float tmp_weight;
-#else
-#error
-#endif
   DBUG_ENTER("walk_and_match");
   LINT_INIT_STRUCT(subkeys);
 
@@ -134,12 +130,8 @@ static int walk_and_match(FT_WORD *word, uint32 count, ALL_IN_ONE *aio)
       r=_mi_search_first(info, keyinfo, key_root);
       goto do_skip;
     }
-#if HA_FT_WTYPE == HA_KEYTYPE_FLOAT
     /* The weight we read was actually a float */
     tmp_weight= subkeys.f;
-#else
-#error
-#endif
   /* The following should be safe, even if we compare doubles */
     if (tmp_weight==0)
       DBUG_RETURN(doc_cnt); /* stopword, doc_cnt should be 0 */

storage/myisam/ft_update.c

@@ -281,17 +281,10 @@ uint _ft_make_key(MI_INFO *info, uint keynr, uchar *keybuf, FT_WORD *wptr,
 		  my_off_t filepos)
 {
   uchar buf[HA_FT_MAXBYTELEN+16];
+  float weight=(float) ((filepos==HA_OFFSET_ERROR) ? 0 : wptr->weight);
   DBUG_ENTER("_ft_make_key");
 
-#if HA_FT_WTYPE == HA_KEYTYPE_FLOAT
-  {
-    float weight=(float) ((filepos==HA_OFFSET_ERROR) ? 0 : wptr->weight);
   mi_float4store(buf,weight);
-  }
-#else
-#error
-#endif
-
   int2store(buf+HA_FT_WLEN,wptr->len);
   memcpy(buf+HA_FT_WLEN+2,wptr->pos,wptr->len);
   DBUG_RETURN(_mi_make_key(info,keynr,(uchar*) keybuf,buf,filepos));

storage/myisam/fulltext.h

@@ -21,6 +21,11 @@
 #include "myisamdef.h"
 #include "ft_global.h"
 
+/* If HA_FT_MAXLEN is change to 127 or over, it must be tested properly as
+   it may cause different representation on disk for full text indexes
+*/
+#define HA_FT_MAXLEN 126
+
 int  _mi_ft_cmp(MI_INFO *, uint, const uchar *, const uchar *);
 int  _mi_ft_add(MI_INFO *, uint, uchar *, const uchar *, my_off_t);
 int  _mi_ft_del(MI_INFO *, uint, uchar *, const uchar *, my_off_t);

storage/sphinx/ha_sphinx.cc

@@ -17,7 +17,7 @@
 #pragma implementation // gcc: Class implementation
 #endif
 
-#if _MSC_VER>=1400
+#if defined(_MSC_VER) && _MSC_VER>=1400
 #define _CRT_SECURE_NO_DEPRECATE 1
 #define _CRT_NONSTDC_NO_DEPRECATE 1
 #endif
@@ -65,7 +65,7 @@
 #define MSG_WAITALL 0
 #endif
 
-#if _MSC_VER>=1400
+#if defined(_MSC_VER) && _MSC_VER>=1400
 #pragma warning(push,4)
 #endif
 

storage/sphinx/snippets_udf.cc

@@ -45,7 +45,7 @@ typedef uchar byte;
 
 /// partially copy-pasted stuff that should be moved elsewhere
 
-#if UNALIGNED_RAM_ACCESS
+#ifdef UNALIGNED_RAM_ACCESS
 
 /// pass-through wrapper
 template < typename T > inline T sphUnalignedRead ( const T & tRef )
@@ -83,7 +83,7 @@ void sphUnalignedWrite ( void * pPtr, const T & tVal )
 		*pDst++ = *pSrc++;
 }
 
-#endif
+#endif /* UNALIGNED_RAM_ACCESS */
 
 #define SPHINXSE_MAX_ALLOC			(16*1024*1024)
 

tests/mysql_client_test.c

@@ -20622,7 +20622,7 @@ static struct my_tests_st my_tests[]= {
 #ifdef EMBEDDED_LIBRARY
   { "test_embedded_start_stop", test_embedded_start_stop },
 #endif
-#if NOT_YET_WORKING
+#ifdef NOT_YET_WORKING
   { "test_drop_temp", test_drop_temp },
 #endif
   { "test_fetch_seek", test_fetch_seek },