Bug#53445: Build with -Wall and fix warnings that it generates

Apart strict-aliasing warnings, fix the remaining warnings
generated by GCC 4.4.4 -Wall and -Wextra flags.

One major source of warnings was the in-house function my_bcmp
which (unconventionally) took pointers to unsigned characters
as the byte sequences to be compared. Since my_bcmp and bcmp
are deprecated functions whose only difference with memcmp is
the return value, every use of the function is replaced with
memcmp as the special return value wasn't actually being used
by any caller.

There were also various other warnings, mostly due to type
mismatches, missing return values, missing prototypes, dead
code (unreachable) and ignored return values.

67 files changed, 257 insertions, 362 deletions

diff --git a/BUILD/SETUP.sh b/BUILD/SETUP.sh
index 626f932e045..08ae4de2e23 100755
--- a/BUILD/SETUP.sh
+++ b/BUILD/SETUP.sh
@@ -90,22 +90,19 @@ SSL_LIBRARY=--with-ssl
 
 if [ "x$warning_mode" != "xpedantic" ]; then
 # Both C and C++ warnings
-  warnings="-Wimplicit -Wreturn-type -Wswitch -Wtrigraphs -Wcomment -W"
-  warnings="$warnings -Wchar-subscripts -Wformat -Wparentheses -Wsign-compare"
-  warnings="$warnings -Wwrite-strings -Wunused-function -Wunused-label -Wunused-value -Wunused-variable"
+  warnings="-Wall -Wextra -Wunused -Wwrite-strings"
 
 # For more warnings, uncomment the following line
-# warnings="$global_warnings -Wshadow"
+# warnings="$warnings -Wshadow"
 
 # C warnings
-  c_warnings="$warnings -Wunused-parameter"
+  c_warnings="$warnings"
 # C++ warnings
-  cxx_warnings="$warnings"
+  cxx_warnings="$warnings -Wno-unused-parameter"
 # cxx_warnings="$cxx_warnings -Woverloaded-virtual -Wsign-promo"
-  cxx_warnings="$cxx_warnings -Wreorder"
   cxx_warnings="$cxx_warnings -Wctor-dtor-privacy -Wnon-virtual-dtor"
 # Added unless --with-debug=full
-  debug_extra_cflags="-O0 -g3 -gdwarf-2" #1 -Wuninitialized"
+  debug_extra_cflags="-O0 -g3 -gdwarf-2"
 else
   warnings="-W -Wall -ansi -pedantic -Wno-long-long -Wno-unused -D_POSIX_SOURCE"
   c_warnings="$warnings"
diff --git a/BUILD/check-cpu b/BUILD/check-cpu
index c0e87a675cb..390ba545405 100755
--- a/BUILD/check-cpu
+++ b/BUILD/check-cpu
@@ -181,14 +181,17 @@ check_cpu () {
     cc=$CC
   fi
 
-  cc_ver=`$cc --version | sed 1q`
-  cc_verno=`echo $cc_ver | sed -e 's/^.*(GCC)//g; s/[^0-9. ]//g;	 s/^ *//g; s/ .*//g'`
-  set -- `echo $cc_verno | tr '.' ' '`
-  cc_major=$1
-  cc_minor=$2
-  cc_patch=$3
-  cc_comp=`expr $cc_major '*' 100 '+' $cc_minor`
-  
+  # check if compiler is gcc and dump its version
+  cc_verno=`$cc -dumpversion 2>/dev/null`
+  if test "x$?" = "x0" ; then
+    set -- `echo $cc_verno | tr '.' ' '`
+    cc_ver="GCC"
+    cc_major=$1
+    cc_minor=$2
+    cc_patch=$3
+    cc_comp=`expr $cc_major '*' 100 '+' $cc_minor`
+  fi
+
   case "$cc_ver--$cc_verno" in
     *GCC*)
         # different gcc backends (and versions) have different CPU flags
@@ -229,7 +232,7 @@ check_cpu () {
   fi
   while [ "$cpu_arg" ] ; do
     printf "testing $cpu_arg ... " >&2
-          
+
     # compile check
     eval "$cc -c $check_cpu_cflags __test.c" 2>/dev/null
     if test "x$?" = "x0" ; then
@@ -243,5 +246,5 @@ check_cpu () {
   done
   rm __test.*
 }
- 
+
 check_cpu
diff --git a/client/mysql.cc b/client/mysql.cc
index 14a6ceed51d..edcc72b60bf 100644
--- a/client/mysql.cc
+++ b/client/mysql.cc
@@ -93,7 +93,6 @@ extern "C" {
 #endif
 #endif
 
-#undef bcmp				// Fix problem with new readline
 #if defined(__WIN__)
 #include <conio.h>
 #elif !defined(__NETWARE__)
diff --git a/client/mysqltest.cc b/client/mysqltest.cc
index 359de9880e7..6a8d119a7c4 100644
--- a/client/mysqltest.cc
+++ b/client/mysqltest.cc
@@ -5780,7 +5780,7 @@ int read_command(struct st_command** command_ptr)
         (struct st_command*) my_malloc(sizeof(*command),
                                        MYF(MY_WME|MY_ZEROFILL))) ||
       insert_dynamic(&q_lines, (uchar*) &command))
-    die(NullS);
+    die("Out of memory");
   command->type= Q_UNKNOWN;
 
   read_command_buf[0]= 0;
@@ -6260,7 +6260,7 @@ void init_win_path_patterns()
     }
 
     if (insert_dynamic(&patterns, (uchar*) &p))
-      die(NullS);
+      die("Out of memory");
 
     DBUG_PRINT("info", ("p: %s", p));
     while (*p)
@@ -9331,8 +9331,7 @@ REPLACE *init_replace(char * *from, char * *to,uint count,
     for (i=1 ; i <= found_sets ; i++)
     {
       pos=from[found_set[i-1].table_offset];
-      rep_str[i].found= !bcmp((const uchar*) pos,
-			      (const uchar*) "\\^", 3) ? 2 : 1;
+      rep_str[i].found= !memcmp(pos, "\\^", 3) ? 2 : 1;
       rep_str[i].replace_string=to_array[found_set[i-1].table_offset];
       rep_str[i].to_offset=found_set[i-1].found_offset-start_at_word(pos);
       rep_str[i].from_offset=found_set[i-1].found_offset-replace_len(pos)+
@@ -9460,8 +9459,8 @@ void copy_bits(REP_SET *to,REP_SET *from)
 
 int cmp_bits(REP_SET *set1,REP_SET *set2)
 {
-  return bcmp((uchar*) set1->bits,(uchar*) set2->bits,
-	      sizeof(uint) * set1->size_of_bits);
+  return memcmp(set1->bits, set2->bits,
+                sizeof(uint) * set1->size_of_bits);
 }
 
 
@@ -9530,17 +9529,15 @@ int find_found(FOUND_SET *found_set,uint table_offset, int found_offset)
 
 uint start_at_word(char * pos)
 {
-  return (((!bcmp((const uchar*) pos, (const uchar*) "\\b",2) && pos[2]) ||
-           !bcmp((const uchar*) pos, (const uchar*) "\\^", 2)) ? 1 : 0);
+  return (((!memcmp(pos, "\\b",2) && pos[2]) ||
+           !memcmp(pos, "\\^", 2)) ? 1 : 0);
 }
 
 uint end_of_word(char * pos)
 {
   char * end=strend(pos);
-  return ((end > pos+2 && !bcmp((const uchar*) end-2,
-                                (const uchar*) "\\b", 2)) ||
-	  (end >= pos+2 && !bcmp((const uchar*) end-2,
-                                (const uchar*) "\\$",2))) ? 1 : 0;
+  return ((end > pos+2 && !memcmp(end-2, "\\b", 2)) ||
+	  (end >= pos+2 && !memcmp(end-2, "\\$",2))) ? 1 : 0;
 }
 
 /****************************************************************************
diff --git a/cmd-line-utils/readline/Makefile.am b/cmd-line-utils/readline/Makefile.am
index e5f5717858d..e1e9645e238 100644
--- a/cmd-line-utils/readline/Makefile.am
+++ b/cmd-line-utils/readline/Makefile.am
@@ -31,7 +31,7 @@ noinst_HEADERS =	readline.h chardefs.h keymaps.h \
 
 EXTRA_DIST=		emacs_keymap.c vi_keymap.c
 
-DEFS =			-DMYSQL_CLIENT_NO_THREADS -DHAVE_CONFIG_H -DNO_KILL_INTR
+DEFS =			-DMYSQL_CLIENT_NO_THREADS -DHAVE_CONFIG_H -DNO_KILL_INTR -D_GNU_SOURCE=1
 
 # Don't update the files from bitkeeper
 %::SCCS/s.%
diff --git a/cmd-line-utils/readline/input.c b/cmd-line-utils/readline/input.c
index 84c0422059a..af81d9cd3b0 100644
--- a/cmd-line-utils/readline/input.c
+++ b/cmd-line-utils/readline/input.c
@@ -318,7 +318,9 @@ _rl_input_available ()
     return (_kbhit ());
 #endif
 
+#if !defined (HAVE_SELECT)
   return 0;
+#endif
 }
 
 int
diff --git a/configure.in b/configure.in
index 74e575fad8c..539d597fd07 100644
--- a/configure.in
+++ b/configure.in
@@ -2102,7 +2102,7 @@ MYSQL_TYPE_QSORT
 AC_FUNC_UTIME_NULL
 AC_FUNC_VPRINTF
 
-AC_CHECK_FUNCS(alarm bcmp bfill bmove bsearch bzero \
+AC_CHECK_FUNCS(alarm bfill bmove bsearch bzero \
   chsize cuserid fchmod fcntl \
   fconvert fdatasync fesetround finite fpresetsticky fpsetmask fsync ftruncate \
   getcwd gethostbyaddr_r gethostbyname_r getpass getpassphrase getpwnam \
diff --git a/extra/comp_err.c b/extra/comp_err.c
index bd03f20a755..c02c7ca3d2a 100644
--- a/extra/comp_err.c
+++ b/extra/comp_err.c
@@ -639,9 +639,9 @@ static struct message *find_message(struct errors *err, const char *lang,
 static ha_checksum checksum_format_specifier(const char* msg)
 {
   ha_checksum chksum= 0;
-  const char* p= msg;
-  const char* start= 0;
-  int num_format_specifiers= 0;
+  const uchar* p= (const uchar*) msg;
+  const uchar* start= NULL;
+  uint32 num_format_specifiers= 0;
   while (*p)
   {
 
diff --git a/extra/replace.c b/extra/replace.c
index 9b7695eddcb..fd2d860c212 100644
--- a/extra/replace.c
+++ b/extra/replace.c
@@ -648,7 +648,7 @@ static REPLACE *init_replace(char * *from, char * *to,uint count,
     for (i=1 ; i <= found_sets ; i++)
     {
       pos=from[found_set[i-1].table_offset];
-      rep_str[i].found= (my_bool) (!bcmp(pos,"\\^",3) ? 2 : 1);
+      rep_str[i].found= (my_bool) (!memcmp(pos,"\\^",3) ? 2 : 1);
       rep_str[i].replace_string=to_array[found_set[i-1].table_offset];
       rep_str[i].to_offset=found_set[i-1].found_offset-start_at_word(pos);
       rep_str[i].from_offset=found_set[i-1].found_offset-replace_len(pos)+
@@ -776,8 +776,8 @@ static void copy_bits(REP_SET *to,REP_SET *from)
 
 static int cmp_bits(REP_SET *set1,REP_SET *set2)
 {
-  return bcmp((uchar*) set1->bits,(uchar*) set2->bits,
-	      sizeof(uint) * set1->size_of_bits);
+  return memcmp(set1->bits, set2->bits,
+                sizeof(uint) * set1->size_of_bits);
 }
 
 
@@ -849,14 +849,14 @@ static short find_found(FOUND_SET *found_set,uint table_offset,
 
 static uint start_at_word(char * pos)
 {
-  return (((!bcmp(pos,"\\b",2) && pos[2]) || !bcmp(pos,"\\^",2)) ? 1 : 0);
+  return (((!memcmp(pos,"\\b",2) && pos[2]) || !memcmp(pos,"\\^",2)) ? 1 : 0);
 }
 
 static uint end_of_word(char * pos)
 {
   char * end=strend(pos);
-  return ((end > pos+2 && !bcmp(end-2,"\\b",2)) ||
-	  (end >= pos+2 && !bcmp(end-2,"\\$",2))) ?
+  return ((end > pos+2 && !memcmp(end-2,"\\b",2)) ||
+	  (end >= pos+2 && !memcmp(end-2,"\\$",2))) ?
 	    1 : 0;
 }
 
diff --git a/extra/yassl/src/crypto_wrapper.cpp b/extra/yassl/src/crypto_wrapper.cpp
index 28d7f1b5693..b968ec1e6c3 100644
--- a/extra/yassl/src/crypto_wrapper.cpp
+++ b/extra/yassl/src/crypto_wrapper.cpp
@@ -953,8 +953,9 @@ x509* PemToDer(FILE* file, CertType type, EncryptedInfo* info)
                     info->set = true;
                 }
             }
-            fgets(line,sizeof(line), file); // get blank line
-            begin = ftell(file);
+            // get blank line
+            if (fgets(line, sizeof(line), file))
+              begin = ftell(file);
         }
           
     }
diff --git a/extra/yassl/taocrypt/include/blowfish.hpp b/extra/yassl/taocrypt/include/blowfish.hpp
index 90d2c014b4c..94bbab7aea8 100644
--- a/extra/yassl/taocrypt/include/blowfish.hpp
+++ b/extra/yassl/taocrypt/include/blowfish.hpp
@@ -51,7 +51,7 @@ public:
     enum { BLOCK_SIZE = BLOWFISH_BLOCK_SIZE, ROUNDS = 16 };
 
     Blowfish(CipherDir DIR, Mode MODE)
-        : Mode_BASE(BLOCK_SIZE, DIR, MODE) {}
+        : Mode_BASE(BLOCK_SIZE, DIR, MODE), sbox_(pbox_ + ROUNDS + 2) {}
 
 #ifdef DO_BLOWFISH_ASM
     void Process(byte*, const byte*, word32);
@@ -62,8 +62,8 @@ private:
 	static const word32 p_init_[ROUNDS + 2];
 	static const word32 s_init_[4 * 256];
 
-	word32 pbox_[ROUNDS + 2];
-	word32 sbox_[4 * 256];
+	word32 pbox_[ROUNDS + 2 + 4 * 256];
+	word32* sbox_;
 
     void crypt_block(const word32 in[2], word32 out[2]) const;
     void AsmProcess(const byte* in, byte* out) const;
diff --git a/extra/yassl/taocrypt/include/runtime.hpp b/extra/yassl/taocrypt/include/runtime.hpp
index 99bbe3ac8a3..9d12b253dd6 100644
--- a/extra/yassl/taocrypt/include/runtime.hpp
+++ b/extra/yassl/taocrypt/include/runtime.hpp
@@ -35,10 +35,7 @@
 
 // Handler for pure virtual functions
 namespace __Crun {
-    static void pure_error(void)
-    {
-       assert("Pure virtual method called." == "Aborted");
-    }
+    void pure_error(void);
 } // namespace __Crun
 
 #endif // __sun
@@ -54,16 +51,7 @@ extern "C" {
 #else
     #include "kernelc.hpp"
 #endif
-
-/* Disallow inline __cxa_pure_virtual() */
-static int __cxa_pure_virtual() __attribute__((noinline, used));
-static int __cxa_pure_virtual()
-{
-    // oops, pure virtual called!
-    assert("Pure virtual method called." == "Aborted");
-    return 0;
-}
-
+    int __cxa_pure_virtual () __attribute__ ((weak));
 } // extern "C"
 
 #endif // __GNUC__ > 2
diff --git a/extra/yassl/taocrypt/src/aes.cpp b/extra/yassl/taocrypt/src/aes.cpp
index b2b42d3dcf0..63eff1d91fc 100644
--- a/extra/yassl/taocrypt/src/aes.cpp
+++ b/extra/yassl/taocrypt/src/aes.cpp
@@ -51,7 +51,7 @@ void AES::Process(byte* out, const byte* in, word32 sz)
             out += BLOCK_SIZE;
             in  += BLOCK_SIZE;
         }
-    else if (mode_ == CBC)    
+    else if (mode_ == CBC) {
         if (dir_ == ENCRYPTION)
             while (blocks--) {
                 r_[0] ^= *(word32*)in;
@@ -78,6 +78,7 @@ void AES::Process(byte* out, const byte* in, word32 sz)
                 out += BLOCK_SIZE;
                 in  += BLOCK_SIZE;
             }
+    }
 }
 
 #endif // DO_AES_ASM
diff --git a/extra/yassl/taocrypt/src/algebra.cpp b/extra/yassl/taocrypt/src/algebra.cpp
index c221ce3d6cb..47a660d5c96 100644
--- a/extra/yassl/taocrypt/src/algebra.cpp
+++ b/extra/yassl/taocrypt/src/algebra.cpp
@@ -186,10 +186,10 @@ Integer AbstractGroup::CascadeScalarMultiply(const Element &x,
 
 struct WindowSlider
 {
-    WindowSlider(const Integer &exp, bool fastNegate,
+    WindowSlider(const Integer &expIn, bool fastNegateIn,
                  unsigned int windowSizeIn=0)
-        : exp(exp), windowModulus(Integer::One()), windowSize(windowSizeIn),
-          windowBegin(0), fastNegate(fastNegate), firstTime(true),
+        : exp(expIn), windowModulus(Integer::One()), windowSize(windowSizeIn),
+          windowBegin(0), fastNegate(fastNegateIn), firstTime(true),
           finished(false)
     {
         if (windowSize == 0)
diff --git a/extra/yassl/taocrypt/src/blowfish.cpp b/extra/yassl/taocrypt/src/blowfish.cpp
index 66ff4d829d7..2097b045278 100644
--- a/extra/yassl/taocrypt/src/blowfish.cpp
+++ b/extra/yassl/taocrypt/src/blowfish.cpp
@@ -53,7 +53,7 @@ void Blowfish::Process(byte* out, const byte* in, word32 sz)
             out += BLOCK_SIZE;
             in  += BLOCK_SIZE;
         }
-    else if (mode_ == CBC)
+    else if (mode_ == CBC) {
         if (dir_ == ENCRYPTION)
             while (blocks--) {
                 r_[0] ^= *(word32*)in;
@@ -78,6 +78,7 @@ void Blowfish::Process(byte* out, const byte* in, word32 sz)
                 out += BLOCK_SIZE;
                 in  += BLOCK_SIZE;
             }
+    }
 }
 
 #endif // DO_BLOWFISH_ASM
diff --git a/extra/yassl/taocrypt/src/integer.cpp b/extra/yassl/taocrypt/src/integer.cpp
index 85733b88aa9..b054e98bef4 100644
--- a/extra/yassl/taocrypt/src/integer.cpp
+++ b/extra/yassl/taocrypt/src/integer.cpp
@@ -283,21 +283,23 @@ DWord() {}
     word GetHighHalfAsBorrow() const {return 0-halfs_.high;}
 
 private:
+    struct dword_struct
+    {
+    #ifdef LITTLE_ENDIAN_ORDER
+        word low;
+        word high;
+    #else
+        word high;
+        word low;
+    #endif
+    };
+
     union
     {
     #ifdef TAOCRYPT_NATIVE_DWORD_AVAILABLE
         dword whole_;
     #endif
-        struct
-        {
-        #ifdef LITTLE_ENDIAN_ORDER
-            word low;
-            word high;
-        #else
-            word high;
-            word low;
-        #endif
-        } halfs_;
+        struct dword_struct halfs_;
     };
 };
 
@@ -1214,20 +1216,24 @@ public:
     #define AS1(x) #x ";"
     #define AS2(x, y) #x ", " #y ";"
     #define AddPrologue \
+        word res; \
         __asm__ __volatile__ \
         ( \
             "push %%ebx;"	/* save this manually, in case of -fPIC */ \
-            "mov %2, %%ebx;" \
+            "mov %3, %%ebx;" \
             ".intel_syntax noprefix;" \
             "push ebp;"
     #define AddEpilogue \
             "pop ebp;" \
             ".att_syntax prefix;" \
             "pop %%ebx;" \
-                    : \
+            "mov %%eax, %0;" \
+                    : "=g" (res) \
                     : "c" (C), "d" (A), "m" (B), "S" (N) \
                     : "%edi", "memory", "cc" \
-        );
+        ); \
+        return res;
+
     #define MulPrologue \
         __asm__ __volatile__ \
         ( \
diff --git a/extra/yassl/taocrypt/src/misc.cpp b/extra/yassl/taocrypt/src/misc.cpp
index 402645c93fd..11dd4dc6d66 100644
--- a/extra/yassl/taocrypt/src/misc.cpp
+++ b/extra/yassl/taocrypt/src/misc.cpp
@@ -84,12 +84,23 @@ namespace STL = STL_NAMESPACE;
 
     }
 
-#if defined(__ICC) || defined(__INTEL_COMPILER)
+#ifdef __sun
+
+// Handler for pure virtual functions
+namespace __Crun {
+    void pure_error() {
+      assert(!"Aborted: pure virtual method called.");
+    }
+}
+
+#endif
+
+#if defined(__ICC) || defined(__INTEL_COMPILER) || (__GNUC__ > 2)
 
 extern "C" {
 
     int __cxa_pure_virtual() {
-      assert("Pure virtual method called." == "Aborted");
+      assert(!"Aborted: pure virtual method called.");
       return 0;
     }
 
@@ -166,14 +177,6 @@ word Crop(word value, unsigned int size)
 
 #ifdef TAOCRYPT_X86ASM_AVAILABLE
 
-#ifndef _MSC_VER
-    static jmp_buf s_env;
-    static void SigIllHandler(int)
-    {
-        longjmp(s_env, 1);
-    }
-#endif
-
 
 bool HaveCpuId()
 {
diff --git a/extra/yassl/taocrypt/src/twofish.cpp b/extra/yassl/taocrypt/src/twofish.cpp
index 84dd35f9191..71601c08162 100644
--- a/extra/yassl/taocrypt/src/twofish.cpp
+++ b/extra/yassl/taocrypt/src/twofish.cpp
@@ -54,7 +54,7 @@ void Twofish::Process(byte* out, const byte* in, word32 sz)
             out += BLOCK_SIZE;
             in  += BLOCK_SIZE;
         }
-    else if (mode_ == CBC)
+    else if (mode_ == CBC) {
         if (dir_ == ENCRYPTION)
             while (blocks--) {
                 r_[0] ^= *(word32*)in;
@@ -82,6 +82,7 @@ void Twofish::Process(byte* out, const byte* in, word32 sz)
                 out += BLOCK_SIZE;
                 in  += BLOCK_SIZE;
             }
+    }
 }
 
 #endif // DO_TWOFISH_ASM
diff --git a/extra/yassl/testsuite/test.hpp b/extra/yassl/testsuite/test.hpp
index c921f8f9c69..970ba5bf367 100644
--- a/extra/yassl/testsuite/test.hpp
+++ b/extra/yassl/testsuite/test.hpp
@@ -160,6 +160,11 @@ inline void err_sys(const char* msg)
 }
 
 
+extern "C" {
+  static int PasswordCallBack(char*, int, int, void*);
+}
+
+
 static int PasswordCallBack(char* passwd, int sz, int rw, void* userdata)
 {
     strncpy(passwd, "12345678", sz);
diff --git a/include/m_string.h b/include/m_string.h
index b2a1d9ff2f4..d027047f501 100644
--- a/include/m_string.h
+++ b/include/m_string.h
@@ -33,10 +33,6 @@
 /* need by my_vsnprintf */
 #include <stdarg.h> 
 
-#ifdef _AIX
-#undef HAVE_BCMP
-#endif
-
 /*  This is needed for the definitions of bzero... on solaris */
 #if defined(HAVE_STRINGS_H)
 #include <strings.h>
@@ -60,14 +56,6 @@
 /* Unixware 7 */
 #if !defined(HAVE_BFILL)
 # define bfill(A,B,C)           memset((A),(C),(B))
-# define bmove_align(A,B,C)    memcpy((A),(B),(C))
-#endif
-
-#if !defined(HAVE_BCMP)
-# define bcopy(s, d, n)		memcpy((d), (s), (n))
-# define bcmp(A,B,C)		memcmp((A),(B),(C))
-# define bzero(A,B)		memset((A),0,(B))
-# define bmove_align(A,B,C)     memcpy((A),(B),(C))
 #endif
 
 #if defined(__cplusplus)
@@ -120,15 +108,6 @@ extern	void bfill(uchar *dst,size_t len,pchar fill);
 extern	void bzero(uchar * dst,size_t len);
 #endif
 
-#if !defined(bcmp) && !defined(HAVE_BCMP)
-extern	size_t bcmp(const uchar *s1,const uchar *s2,size_t len);
-#endif
-#ifdef HAVE_purify
-extern	size_t my_bcmp(const uchar *s1,const uchar *s2,size_t len);
-#undef bcmp
-#define bcmp(A,B,C) my_bcmp((A),(B),(C))
-#endif /* HAVE_purify */
-
 #ifndef bmove512
 extern	void bmove512(uchar *dst,const uchar *src,size_t len);
 #endif
diff --git a/include/my_bitmap.h b/include/my_bitmap.h
index 78642df3362..ab69b2d671d 100644
--- a/include/my_bitmap.h
+++ b/include/my_bitmap.h
@@ -159,22 +159,6 @@ static inline my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2)
 #define bitmap_set_all(MAP) \
   (memset((MAP)->bitmap, 0xFF, 4*no_words_in_map((MAP))))
 
-/**
-   check, set and clear a bit of interest of an integer.
-
-   If the bit is out of range @retval -1. Otherwise
-   bit_is_set   @return 0 or 1 reflecting the bit is set or not;
-   bit_do_set   @return 1 (bit is set 1)
-   bit_do_clear @return 0 (bit is cleared to 0)
-*/
-
-#define bit_is_set(I,B)   (sizeof(I) * CHAR_BIT > (B) ?                 \
-                           (((I) & (ULL(1) << (B))) == 0 ? 0 : 1) : -1)
-#define bit_do_set(I,B)   (sizeof(I) * CHAR_BIT > (B) ?         \
-                           ((I) |= (ULL(1) << (B)), 1) : -1)
-#define bit_do_clear(I,B) (sizeof(I) * CHAR_BIT > (B) ?         \
-                           ((I) &= ~(ULL(1) << (B)), 0) : -1)
-
 #ifdef	__cplusplus
 }
 #endif
diff --git a/include/my_global.h b/include/my_global.h
index e13c7c37b62..572df6a584d 100644
--- a/include/my_global.h
+++ b/include/my_global.h
@@ -556,22 +556,30 @@ int	__void__;
 #endif
 #endif /* DONT_DEFINE_VOID */
 
-#if defined(_lint) || defined(FORCE_INIT_OF_VARS)
-#define LINT_INIT(var)	var=0			/* No uninitialize-warning */
+/*
+  Deprecated workaround for false-positive uninitialized variables
+  warnings. Those should be silenced using tool-specific heuristics.
+
+  Enabled by default for g++ due to the bug referenced below.
+*/
+#if defined(_lint) || defined(FORCE_INIT_OF_VARS) || \
+    (defined(__GNUC__) && defined(__cplusplus))
+#define LINT_INIT(var) var= 0
 #else
 #define LINT_INIT(var)
 #endif
 
-/* 
+/*
    Suppress uninitialized variable warning without generating code.
 
    The _cplusplus is a temporary workaround for C++ code pending a fix
-   for a g++ bug (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34772). 
+   for a g++ bug (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34772).
 */
-#if defined(_lint) || defined(FORCE_INIT_OF_VARS) || defined(__cplusplus) || \
-  !defined(__GNUC__)
+#if defined(_lint) || defined(FORCE_INIT_OF_VARS) || \
+    defined(__cplusplus) || !defined(__GNUC__)
 #define UNINIT_VAR(x) x= 0
 #else
+/* GCC specific self-initialization which inhibits the warning. */
 #define UNINIT_VAR(x) x= x
 #endif
 
@@ -595,7 +603,6 @@ typedef unsigned short ushort;
 #define set_if_bigger(a,b)  do { if ((a) < (b)) (a)=(b); } while(0)
 #define set_if_smaller(a,b) do { if ((a) > (b)) (a)=(b); } while(0)
 #define test_all_bits(a,b) (((a) & (b)) == (b))
-#define set_bits(type, bit_count) (sizeof(type)*8 <= (bit_count) ? ~(type) 0 : ((((type) 1) << (bit_count)) - (type) 1))
 #define array_elements(A) ((uint) (sizeof(A)/sizeof(A[0])))
 
 /* Define some general constants */
diff --git a/libmysql/Makefile.shared b/libmysql/Makefile.shared
index 3e93b7daf84..39c1975888a 100644
--- a/libmysql/Makefile.shared
+++ b/libmysql/Makefile.shared
@@ -38,7 +38,7 @@ mystringsobjects =	strmov.lo strxmov.lo strxnmov.lo strnmov.lo \
 			strmake.lo strend.lo strtod.lo \
 			strnlen.lo strfill.lo is_prefix.lo \
 			int2str.lo str2int.lo strinstr.lo strcont.lo \
-			strcend.lo bcmp.lo ctype-latin1.lo \
+			strcend.lo ctype-latin1.lo \
 			bchange.lo bmove.lo bmove_upp.lo longlong2str.lo \
 			strtoull.lo strtoll.lo llstr.lo my_vsnprintf.lo \
 			ctype.lo ctype-simple.lo ctype-bin.lo ctype-mb.lo \
diff --git a/libmysql/libmysql.c b/libmysql/libmysql.c
index 21cbfaf6dbb..e0cc119bd16 100644
--- a/libmysql/libmysql.c
+++ b/libmysql/libmysql.c
@@ -4425,7 +4425,6 @@ static my_bool setup_one_fetch_function(MYSQL_BIND *param, MYSQL_FIELD *field)
     field->max_length= 10;                    /* 2003-11-11 */
     param->skip_result= skip_result_with_length;
     break;
-    break;
   case MYSQL_TYPE_DATETIME:
   case MYSQL_TYPE_TIMESTAMP:
     param->skip_result= skip_result_with_length;
diff --git a/mysql-test/lib/My/SafeProcess/safe_process.cc b/mysql-test/lib/My/SafeProcess/safe_process.cc
index 50c433b9b39..1c778362975 100644
--- a/mysql-test/lib/My/SafeProcess/safe_process.cc
+++ b/mysql-test/lib/My/SafeProcess/safe_process.cc
@@ -159,7 +159,7 @@ int main(int argc, char* const argv[] )
   signal(SIGCHLD, handle_signal);
   signal(SIGABRT, handle_abort);
 
-  sprintf(safe_process_name, "safe_process[%d]", own_pid);
+  sprintf(safe_process_name, "safe_process[%ld]", (long) own_pid);
 
   message("Started");
 
diff --git a/mysys/mf_loadpath.c b/mysys/mf_loadpath.c
index 1df613a1733..b329d103d94 100644
--- a/mysys/mf_loadpath.c
+++ b/mysys/mf_loadpath.c
@@ -42,7 +42,7 @@ char * my_load_path(char * to, const char *path,
     if (is_cur)
       is_cur=2;					/* Remove current dir */
     if (! my_getwd(buff,(uint) (FN_REFLEN-strlen(path)+is_cur),MYF(0)))
-      VOID(strncat(buff, path+is_cur, FN_REFLEN));
+      VOID(strncat(buff, path+is_cur, FN_REFLEN-1));
     else
       VOID(strnmov(buff, path, FN_REFLEN));     /* Return org file name */
   }
diff --git a/mysys/mf_pack.c b/mysys/mf_pack.c
index 4f7cd90e8aa..86fd61537e7 100644
--- a/mysys/mf_pack.c
+++ b/mysys/mf_pack.c
@@ -52,7 +52,7 @@ void pack_dirname(char * to, const char *from)
     buff_length= strlen(buff);
     d_length= (size_t) (start-to);
     if ((start == to ||
-	 (buff_length == d_length && !bcmp(buff,start,d_length))) &&
+	 (buff_length == d_length && !memcmp(buff,start,d_length))) &&
 	*start != FN_LIBCHAR && *start)
     {						/* Put current dir before */
       bchange((uchar*) to, d_length, (uchar*) buff, buff_length, strlen(to)+1);
@@ -70,7 +70,7 @@ void pack_dirname(char * to, const char *from)
     }
     if (length > 1 && length < d_length)
     {						/* test if /xx/yy -> ~/yy */
-      if (bcmp(to,home_dir,length) == 0 && to[length] == FN_LIBCHAR)
+      if (memcmp(to,home_dir,length) == 0 && to[length] == FN_LIBCHAR)
       {
 	to[0]=FN_HOMELIB;			/* Filename begins with ~ */
 	(void) strmov_overlapp(to+1,to+length);
@@ -80,7 +80,7 @@ void pack_dirname(char * to, const char *from)
     {						/* Test if cwd is ~/... */
       if (length > 1 && length < buff_length)
       {
-	if (bcmp(buff,home_dir,length) == 0 && buff[length] == FN_LIBCHAR)
+	if (memcmp(buff,home_dir,length) == 0 && buff[length] == FN_LIBCHAR)
 	{
 	  buff[0]=FN_HOMELIB;
 	  (void) strmov_overlapp(buff+1,buff+length);
@@ -166,7 +166,7 @@ size_t cleanup_dirname(register char *to, const char *from)
       *pos = FN_LIBCHAR;
     if (*pos == FN_LIBCHAR)
     {
-      if ((size_t) (pos-start) > length && bcmp(pos-length,parent,length) == 0)
+      if ((size_t) (pos-start) > length && memcmp(pos-length,parent,length) == 0)
       {						/* If .../../; skip prev */
 	pos-=length;
 	if (pos != start)
@@ -197,7 +197,7 @@ size_t cleanup_dirname(register char *to, const char *from)
 	  end_parentdir=pos;
 	  while (pos >= start && *pos != FN_LIBCHAR)	/* remove prev dir */
 	    pos--;
-	  if (pos[1] == FN_HOMELIB || bcmp(pos,parent,length) == 0)
+	  if (pos[1] == FN_HOMELIB || memcmp(pos,parent,length) == 0)
 	  {					/* Don't remove ~user/ */
 	    pos=strmov(end_parentdir+1,parent);
 	    *pos=FN_LIBCHAR;
@@ -206,7 +206,7 @@ size_t cleanup_dirname(register char *to, const char *from)
 	}
       }
       else if ((size_t) (pos-start) == length-1 &&
-	       !bcmp(start,parent+1,length-1))
+	       !memcmp(start,parent+1,length-1))
 	start=pos;				/* Starts with "../" */
       else if (pos-start > 0 && pos[-1] == FN_LIBCHAR)
       {
diff --git a/mysys/my_bitmap.c b/mysys/my_bitmap.c
index e127b2584ae..b7258080337 100644
--- a/mysys/my_bitmap.c
+++ b/mysys/my_bitmap.c
@@ -508,10 +508,8 @@ uint bitmap_get_first_set(const MY_BITMAP *map)
             if (*byte_ptr & (1 << k))
               return (i*32) + (j*8) + k;
           }
-          DBUG_ASSERT(0);
         }
       }
-      DBUG_ASSERT(0);
     }
   }
   return MY_BIT_NONE;
@@ -534,7 +532,7 @@ uint bitmap_get_first(const MY_BITMAP *map)
     {
       byte_ptr= (uchar*)data_ptr;
       for (j=0; ; j++, byte_ptr++)
-      { 
+      {
         if (*byte_ptr != 0xFF)
         {
           for (k=0; ; k++)
@@ -542,10 +540,8 @@ uint bitmap_get_first(const MY_BITMAP *map)
             if (!(*byte_ptr & (1 << k)))
               return (i*32) + (j*8) + k;
           }
-          DBUG_ASSERT(0);
         }
       }
-      DBUG_ASSERT(0);
     }
   }
   return MY_BIT_NONE;
diff --git a/mysys/my_gethwaddr.c b/mysys/my_gethwaddr.c
index c7f138c7337..00e0e90f1e4 100644
--- a/mysys/my_gethwaddr.c
+++ b/mysys/my_gethwaddr.c
@@ -47,7 +47,7 @@ my_bool my_gethwaddr(uchar *to)
   uchar  *buf, *next, *end, *addr;
   struct if_msghdr *ifm;
   struct sockaddr_dl *sdl;
-  int i, res=1, mib[6]={CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, 0};
+  int res=1, mib[6]={CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, 0};
 
   if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1)
     goto err;
diff --git a/mysys/my_getopt.c b/mysys/my_getopt.c
index 26b1cc75af0..b0e7175d0b9 100644
--- a/mysys/my_getopt.c
+++ b/mysys/my_getopt.c
@@ -30,7 +30,7 @@ my_error_reporter my_getopt_error_reporter= &default_reporter;
 
 static int findopt(char *optpat, uint length,
 		   const struct my_option **opt_res,
-		   char **ffname);
+		   const char **ffname);
 my_bool getopt_compare_strings(const char *s,
 			       const char *t,
 			       uint length);
@@ -115,8 +115,8 @@ int handle_options(int *argc, char ***argv,
   uint opt_found, argvpos= 0, length;
   my_bool end_of_options= 0, must_be_var, set_maximum_value,
           option_is_loose;
-  char **pos, **pos_end, *optend, *UNINIT_VAR(prev_found),
-       *opt_str, key_name[FN_REFLEN];
+  char **pos, **pos_end, *optend, *opt_str, key_name[FN_REFLEN];
+  const char *UNINIT_VAR(prev_found);
   const struct my_option *optp;
   void *value;
   int error, i;
@@ -225,7 +225,6 @@ int handle_options(int *argc, char ***argv,
 	  Find first the right option. Return error in case of an ambiguous,
 	  or unknown option
 	*/
-        LINT_INIT(prev_found);
 	optp= longopts;
 	if (!(opt_found= findopt(opt_str, length, &optp, &prev_found)))
 	{
@@ -709,10 +708,10 @@ static int setval(const struct my_option *opts, void *value, char *argument,
 
 static int findopt(char *optpat, uint length,
 		   const struct my_option **opt_res,
-		   char **ffname)
+		   const char **ffname)
 {
   uint count;
-  struct my_option *opt= (struct my_option *) *opt_res;
+  const struct my_option *opt= *opt_res;
 
   for (count= 0; opt->name; opt++)
   {
@@ -723,8 +722,9 @@ static int findopt(char *optpat, uint length,
 	return 1;
       if (!count)
       {
+        /* We only need to know one prev */
 	count= 1;
-	*ffname= (char *) opt->name;	/* We only need to know one prev */
+	*ffname= opt->name;
       }
       else if (strcmp(*ffname, opt->name))
       {
diff --git a/mysys/my_handler.c b/mysys/my_handler.c
index 3bc27b622cb..7aa8177040d 100644
--- a/mysys/my_handler.c
+++ b/mysys/my_handler.c
@@ -269,7 +269,6 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
           return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
         a+=a_length;
         b+=b_length;
-        break;
       }
       break;
     case HA_KEYTYPE_INT8:
diff --git a/mysys/safemalloc.c b/mysys/safemalloc.c
index 2c72026ab5a..76faa33e804 100644
--- a/mysys/safemalloc.c
+++ b/mysys/safemalloc.c
@@ -163,7 +163,7 @@ void *_mymalloc(size_t size, const char *filename, uint lineno, myf MyFlags)
       my_message(EE_OUTOFMEMORY, buff, MYF(ME_BELL+ME_WAITTANG+ME_NOREFRESH));
     }
     DBUG_PRINT("error",("Out of memory, in use: %ld at line %d, '%s'",
-			sf_malloc_max_memory,lineno, filename));
+			(ulong) sf_malloc_max_memory, lineno, filename));
     DBUG_EXECUTE_IF("simulate_out_of_memory",
                     DBUG_SET("-d,simulate_out_of_memory"););
     if (MyFlags & MY_FAE)
diff --git a/mysys/thr_lock.c b/mysys/thr_lock.c
index 0e0e93cf220..b925c5588be 100644
--- a/mysys/thr_lock.c
+++ b/mysys/thr_lock.c
@@ -125,8 +125,7 @@ static int check_lock(struct st_lock_list *list, const char* lock_type,
 {
   THR_LOCK_DATA *data,**prev;
   uint count=0;
-  THR_LOCK_OWNER *first_owner;
-  LINT_INIT(first_owner);
+  THR_LOCK_OWNER *UNINIT_VAR(first_owner);
 
   prev= &list->data;
   if (list->data)
diff --git a/regex/regcomp.c b/regex/regcomp.c
index b203d4941e1..8280fbfd6c8 100644
--- a/regex/regcomp.c
+++ b/regex/regcomp.c
@@ -690,7 +690,6 @@ register cset *cs;
 	case '-':
 		SETERROR(REG_ERANGE);
 		return;			/* NOTE RETURN */
-		break;
 	default:
 		c = '\0';
 		break;
diff --git a/sql/field.cc b/sql/field.cc
index 7360a013ffb..2229bc19b3c 100644
--- a/sql/field.cc
+++ b/sql/field.cc
@@ -8691,7 +8691,13 @@ int Field_set::store(longlong nr, bool unsigned_val)
 {
   ASSERT_COLUMN_MARKED_FOR_WRITE;
   int error= 0;
-  ulonglong max_nr= set_bits(ulonglong, typelib->count);
+  ulonglong max_nr;
+
+  if (sizeof(ulonglong)*8 <= typelib->count)
+    max_nr= ULONGLONG_MAX;
+  else
+    max_nr= (ULL(1) << typelib->count) - 1;
+
   if ((ulonglong) nr > max_nr)
   {
     nr&= max_nr;
diff --git a/sql/item.cc b/sql/item.cc
index 5f0ca4374df..db2c4c0974b 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -4130,8 +4130,7 @@ Item_field::fix_outer_field(THD *thd, Field **from_field, Item **reference)
                            context->first_name_resolution_table,
                            context->last_name_resolution_table,
                            reference, REPORT_ALL_ERRORS,
-                           !any_privileges &&
-                           TRUE, TRUE);
+                           !any_privileges, TRUE);
     }
     return -1;
   }
diff --git a/sql/item_create.cc b/sql/item_create.cc
index fd8f13d6dc5..5726e987ef6 100644
--- a/sql/item_create.cc
+++ b/sql/item_create.cc
@@ -5051,8 +5051,6 @@ create_func_cast(THD *thd, Item *a, Cast_target cast_type,
                  CHARSET_INFO *cs)
 {
   Item *UNINIT_VAR(res);
-  ulong len;
-  uint dec;
 
   switch (cast_type) {
   case ITEM_CAST_BINARY:
@@ -5075,11 +5073,10 @@ create_func_cast(THD *thd, Item *a, Cast_target cast_type,
     break;
   case ITEM_CAST_DECIMAL:
   {
-    if (c_len == NULL)
-    {
-      len= 0;
-    }
-    else
+    ulong len= 0;
+    uint dec= 0;
+
+    if (c_len)
     {
       ulong decoded_size;
       errno= 0;
@@ -5093,11 +5090,7 @@ create_func_cast(THD *thd, Item *a, Cast_target cast_type,
       len= decoded_size;
     }
 
-    if (c_dec == NULL)
-    {
-      dec= 0;
-    }
-    else
+    if (c_dec)
     {
       ulong decoded_size;
       errno= 0;
@@ -5133,12 +5126,9 @@ create_func_cast(THD *thd, Item *a, Cast_target cast_type,
   }
   case ITEM_CAST_CHAR:
   {
+    int len= -1;
     CHARSET_INFO *real_cs= (cs ? cs : thd->variables.collation_connection);
-    if (c_len == NULL)
-    {
-      len= LL(-1);
-    }
-    else
+    if (c_len)
     {
       ulong decoded_size;
       errno= 0;
@@ -5148,7 +5138,7 @@ create_func_cast(THD *thd, Item *a, Cast_target cast_type,
         my_error(ER_TOO_BIG_DISPLAYWIDTH, MYF(0), "cast as char", MAX_FIELD_BLOBLENGTH);
         return NULL;
       }
-      len= decoded_size;
+      len= (int) decoded_size;
     }
     res= new (thd->mem_root) Item_char_typecast(a, len, real_cs);
     break;
diff --git a/sql/log.cc b/sql/log.cc
index b3554d2a068..d8d5f6fa418 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -1862,7 +1862,7 @@ static int find_uniq_filename(char *name)
   file_info= dir_info->dir_entry;
   for (i=dir_info->number_off_files ; i-- ; file_info++)
   {
-    if (bcmp((uchar*) file_info->name, (uchar*) start, length) == 0 &&
+    if (memcmp(file_info->name, start, length) == 0 &&
 	test_if_number(file_info->name+length, &number,0))
     {
       set_if_bigger(max_found,(ulong) number);
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 5ff4b50c6df..d53f13e0b6b 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -2905,7 +2905,7 @@ void Query_log_event::print_query_header(IO_CACHE* file,
 
   if (likely(charset_inited) &&
       (unlikely(!print_event_info->charset_inited ||
-                bcmp((uchar*) print_event_info->charset, (uchar*) charset, 6))))
+                memcmp(print_event_info->charset, charset, 6))))
   {
     CHARSET_INFO *cs_info= get_charset(uint2korr(charset), MYF(MY_WME));
     if (cs_info)
@@ -2928,8 +2928,8 @@ void Query_log_event::print_query_header(IO_CACHE* file,
   }
   if (time_zone_len)
   {
-    if (bcmp((uchar*) print_event_info->time_zone_str,
-             (uchar*) time_zone_str, time_zone_len+1))
+    if (memcmp(print_event_info->time_zone_str,
+               time_zone_str, time_zone_len+1))
     {
       my_b_printf(file,"SET @@session.time_zone='%s'%s\n",
                   time_zone_str, print_event_info->delimiter);
@@ -7503,8 +7503,7 @@ int Rows_log_event::do_apply_event(Relay_log_info const *rli)
       {
         int actual_error= convert_handler_error(error, thd, table);
         bool idempotent_error= (idempotent_error_code(error) &&
-                                ((bit_is_set(slave_exec_mode, 
-                                SLAVE_EXEC_MODE_IDEMPOTENT)) == 1));
+                               (slave_exec_mode & SLAVE_EXEC_MODE_IDEMPOTENT));
         bool ignored_error= (idempotent_error == 0 ?
                              ignored_error_code(actual_error) : 0);
 
@@ -8332,7 +8331,7 @@ Write_rows_log_event::do_before_row_operations(const Slave_reporting_capability
      todo: to introduce a property for the event (handler?) which forces
      applying the event in the replace (idempotent) fashion.
   */
-  if (bit_is_set(slave_exec_mode, SLAVE_EXEC_MODE_IDEMPOTENT) == 1 ||
+  if ((slave_exec_mode & SLAVE_EXEC_MODE_IDEMPOTENT) ||
       m_table->s->db_type()->db_type == DB_TYPE_NDBCLUSTER)
   {
     /*
@@ -8411,7 +8410,7 @@ Write_rows_log_event::do_after_row_operations(const Slave_reporting_capability *
   int local_error= 0;
   m_table->next_number_field=0;
   m_table->auto_increment_field_not_null= FALSE;
-  if (bit_is_set(slave_exec_mode, SLAVE_EXEC_MODE_IDEMPOTENT) == 1 ||
+  if ((slave_exec_mode & SLAVE_EXEC_MODE_IDEMPOTENT) ||
       m_table->s->db_type()->db_type == DB_TYPE_NDBCLUSTER)
   {
     m_table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
@@ -8514,7 +8513,7 @@ Rows_log_event::write_row(const Relay_log_info *const rli,
 
   TABLE *table= m_table;  // pointer to event's table
   int error;
-  int keynum;
+  int UNINIT_VAR(keynum);
   auto_afree_ptr<char> key(NULL);
 
   /* fill table->record[0] with default values */
@@ -8712,10 +8711,8 @@ int
 Write_rows_log_event::do_exec_row(const Relay_log_info *const rli)
 {
   DBUG_ASSERT(m_table != NULL);
-  int error=
-    write_row(rli,        /* if 1 then overwrite */
-              bit_is_set(slave_exec_mode, SLAVE_EXEC_MODE_IDEMPOTENT) == 1);
-    
+  int error= write_row(rli, (slave_exec_mode & SLAVE_EXEC_MODE_IDEMPOTENT));
+
   if (error && !thd->is_error())
   {
     DBUG_ASSERT(0);
diff --git a/sql/log_event_old.cc b/sql/log_event_old.cc
index 202b81989a8..e901f44286c 100644
--- a/sql/log_event_old.cc
+++ b/sql/log_event_old.cc
@@ -441,7 +441,7 @@ copy_extra_record_fields(TABLE *table,
 
  DBUG_ASSERT(master_reclength <= table->s->reclength);
   if (master_reclength < table->s->reclength)
-    bmove_align(table->record[0] + master_reclength,
+    memcpy(table->record[0] + master_reclength,
                 table->record[1] + master_reclength,
                 table->s->reclength - master_reclength);
     
@@ -720,7 +720,7 @@ static int find_and_fetch_row(TABLE *table, uchar *key)
       rnd_pos() returns the record in table->record[0], so we have to
       move it to table->record[1].
      */
-    bmove_align(table->record[1], table->record[0], table->s->reclength);
+    memcpy(table->record[1], table->record[0], table->s->reclength);
     DBUG_RETURN(error);
   }
 
@@ -1213,7 +1213,7 @@ int Update_rows_log_event_old::do_exec_row(TABLE *table)
     overwriting the default values that where put there by the
     unpack_row() function.
   */
-  bmove_align(table->record[0], m_after_image, table->s->reclength);
+  memcpy(table->record[0], m_after_image, table->s->reclength);
   copy_extra_record_fields(table, m_master_reclength, m_width);
 
   /*
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 5514c356bd1..99f16b36dfa 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -559,7 +559,7 @@ ulong query_buff_size, slow_launch_time, slave_open_temp_tables;
 ulong open_files_limit, max_binlog_size, max_relay_log_size;
 ulong slave_net_timeout, slave_trans_retries;
 ulong slave_exec_mode_options;
-const char *slave_exec_mode_str= "STRICT";
+static const char *slave_exec_mode_str= "STRICT";
 ulong thread_cache_size=0, thread_pool_size= 0;
 ulong binlog_cache_size=0;
 ulonglong  max_binlog_cache_size=0;
@@ -2464,7 +2464,6 @@ extern "C" sig_handler handle_segfault(int sig)
 {
   time_t curr_time;
   struct tm tm;
-  THD *thd=current_thd;
 
   /*
     Strictly speaking, one needs a mutex here
@@ -2523,13 +2522,15 @@ the thread stack. Please read http://dev.mysql.com/doc/mysql/en/linux.html\n\n",
 #endif /* HAVE_LINUXTHREADS */
 
 #ifdef HAVE_STACKTRACE
+  THD *thd=current_thd;
+
   if (!(test_flags & TEST_NO_STACKTRACE))
   {
-    fprintf(stderr,"thd: 0x%lx\n",(long) thd);
-    fprintf(stderr,"\
-Attempting backtrace. You can use the following information to find out\n\
-where mysqld died. If you see no messages after this, something went\n\
-terribly wrong...\n");  
+    fprintf(stderr, "thd: 0x%lx\n",(long) thd);
+    fprintf(stderr, "Attempting backtrace. You can use the following "
+                    "information to find out\nwhere mysqld died. If "
+                    "you see no messages after this, something went\n"
+                    "terribly wrong...\n");
     my_print_stacktrace(thd ? (uchar*) thd->thread_stack : NULL,
                         my_thread_stack_size);
   }
@@ -7879,10 +7880,11 @@ static int mysql_init_variables(void)
 
   /* Things with default values that are not zero */
   delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
-  slave_exec_mode_options= 0;
-  slave_exec_mode_options= (uint)
-    find_bit_type_or_exit(slave_exec_mode_str, &slave_exec_mode_typelib, NULL,
-                          &error);
+  slave_exec_mode_options= find_bit_type_or_exit(slave_exec_mode_str,
+                                                 &slave_exec_mode_typelib,
+                                                 NULL, &error);
+  /* Default mode string must not yield a error. */
+  DBUG_ASSERT(!error);
   if (error)
     return 1;
   opt_specialflag= SPECIAL_ENGLISH;
@@ -8118,8 +8120,9 @@ mysqld_get_one_option(int optid,
     init_slave_skip_errors(argument);
     break;
   case OPT_SLAVE_EXEC_MODE:
-    slave_exec_mode_options= (uint)
-      find_bit_type_or_exit(argument, &slave_exec_mode_typelib, "", &error);
+    slave_exec_mode_options= find_bit_type_or_exit(argument,
+                                                   &slave_exec_mode_typelib,
+                                                   "", &error);
     if (error)
       return 1;
     break;
@@ -8773,7 +8776,7 @@ static int get_options(int *argc,char **argv)
   /* Set global MyISAM variables from delay_key_write_options */
   fix_delay_key_write((THD*) 0, OPT_GLOBAL);
   /* Set global slave_exec_mode from its option */
-  fix_slave_exec_mode(OPT_GLOBAL);
+  fix_slave_exec_mode();
 
 #ifndef EMBEDDED_LIBRARY
   if (mysqld_chroot)
diff --git a/sql/rpl_rli.cc b/sql/rpl_rli.cc
index 316e26f7e40..99a42bbe818 100644
--- a/sql/rpl_rli.cc
+++ b/sql/rpl_rli.cc
@@ -1120,8 +1120,7 @@ bool Relay_log_info::cached_charset_compare(char *charset) const
 {
   DBUG_ENTER("Relay_log_info::cached_charset_compare");
 
-  if (bcmp((uchar*) cached_charset, (uchar*) charset,
-           sizeof(cached_charset)))
+  if (memcmp(cached_charset, charset, sizeof(cached_charset)))
   {
     memcpy(const_cast<char*>(cached_charset), charset, sizeof(cached_charset));
     DBUG_RETURN(1);
diff --git a/sql/set_var.cc b/sql/set_var.cc
index 241126e1e6f..c5517da92f8 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -92,14 +92,13 @@ TYPELIB delay_key_write_typelib=
   delay_key_write_type_names, NULL
 };
 
-const char *slave_exec_mode_names[]=
-{ "STRICT", "IDEMPOTENT", NullS };
-static const unsigned int slave_exec_mode_names_len[]=
-{ sizeof("STRICT") - 1, sizeof("IDEMPOTENT") - 1, 0 };
+static const char *slave_exec_mode_names[]= { "STRICT", "IDEMPOTENT", NullS };
+static unsigned int slave_exec_mode_names_len[]= { sizeof("STRICT") - 1,
+                                                   sizeof("IDEMPOTENT") - 1, 0 };
 TYPELIB slave_exec_mode_typelib=
 {
   array_elements(slave_exec_mode_names)-1, "",
-  slave_exec_mode_names, (unsigned int *) slave_exec_mode_names_len
+  slave_exec_mode_names, slave_exec_mode_names_len
 };
 
 static int  sys_check_ftb_syntax(THD *thd,  set_var *var);
@@ -1215,16 +1214,14 @@ uchar *sys_var_set::value_ptr(THD *thd, enum_var_type type,
 
 void sys_var_set_slave_mode::set_default(THD *thd, enum_var_type type)
 {
-  slave_exec_mode_options= 0;
-  bit_do_set(slave_exec_mode_options, SLAVE_EXEC_MODE_STRICT);
+  slave_exec_mode_options= SLAVE_EXEC_MODE_STRICT;
 }
 
 bool sys_var_set_slave_mode::check(THD *thd, set_var *var)
 {
   bool rc=  sys_var_set::check(thd, var);
-  if (!rc &&
-      bit_is_set(var->save_result.ulong_value, SLAVE_EXEC_MODE_STRICT) == 1 &&
-      bit_is_set(var->save_result.ulong_value, SLAVE_EXEC_MODE_IDEMPOTENT) == 1)
+  if (!rc && (var->save_result.ulong_value & SLAVE_EXEC_MODE_STRICT) &&
+      (var->save_result.ulong_value & SLAVE_EXEC_MODE_IDEMPOTENT))
   {
     rc= true;
     my_error(ER_SLAVE_AMBIGOUS_EXEC_MODE, MYF(0), "");
@@ -1241,20 +1238,18 @@ bool sys_var_set_slave_mode::update(THD *thd, set_var *var)
   return rc;
 }
 
-void fix_slave_exec_mode(enum_var_type type)
+void fix_slave_exec_mode(void)
 {
   DBUG_ENTER("fix_slave_exec_mode");
-  compile_time_assert(sizeof(slave_exec_mode_options) * CHAR_BIT
-                      > SLAVE_EXEC_MODE_LAST_BIT - 1);
-  if (bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_STRICT) == 1 &&
-      bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT) == 1)
+
+  if ((slave_exec_mode_options & SLAVE_EXEC_MODE_STRICT) &&
+      (slave_exec_mode_options & SLAVE_EXEC_MODE_IDEMPOTENT))
   {
-    sql_print_error("Ambiguous slave modes combination."
-                    " STRICT will be used");
-    bit_do_clear(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT);
+    sql_print_error("Ambiguous slave modes combination. STRICT will be used");
+    slave_exec_mode_options&= ~SLAVE_EXEC_MODE_IDEMPOTENT;
   }
-  if (bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT) == 0)
-    bit_do_set(slave_exec_mode_options, SLAVE_EXEC_MODE_STRICT);
+  if (!(slave_exec_mode_options & SLAVE_EXEC_MODE_IDEMPOTENT))
+    slave_exec_mode_options|= SLAVE_EXEC_MODE_STRICT;
   DBUG_VOID_RETURN;
 }
 
diff --git a/sql/set_var.h b/sql/set_var.h
index bc94c6b85c4..68cd94a5670 100644
--- a/sql/set_var.h
+++ b/sql/set_var.h
@@ -1446,7 +1446,7 @@ sys_var *find_sys_var(THD *thd, const char *str, uint length=0);
 int sql_set_variables(THD *thd, List<set_var_base> *var_list);
 bool not_all_support_one_shot(List<set_var_base> *var_list);
 void fix_delay_key_write(THD *thd, enum_var_type type);
-void fix_slave_exec_mode(enum_var_type type);
+void fix_slave_exec_mode(void);
 ulong fix_sql_mode(ulong sql_mode);
 extern sys_var_const_str sys_charset_system;
 extern sys_var_str sys_init_connect;
diff --git a/sql/slave.cc b/sql/slave.cc
index af53bc65c0e..795bc481071 100644
--- a/sql/slave.cc
+++ b/sql/slave.cc
@@ -2113,7 +2113,7 @@ int apply_event_and_update_pos(Log_event* ev, THD* thd, Relay_log_info* rli)
   DBUG_PRINT("info", ("thd->options: %s%s; rli->last_event_start_time: %lu",
                       FLAGSTR(thd->options, OPTION_NOT_AUTOCOMMIT),
                       FLAGSTR(thd->options, OPTION_BEGIN),
-                      rli->last_event_start_time));
+                      (ulong) rli->last_event_start_time));
 
   /*
     Execute the event to change the database and update the binary
@@ -2885,8 +2885,8 @@ pthread_handler_t handle_slave_sql(void *arg)
   char llbuff[22],llbuff1[22];
   char saved_log_name[FN_REFLEN];
   char saved_master_log_name[FN_REFLEN];
-  my_off_t saved_log_pos;
-  my_off_t saved_master_log_pos;
+  my_off_t UNINIT_VAR(saved_log_pos);
+  my_off_t UNINIT_VAR(saved_master_log_pos);
   my_off_t saved_skip= 0;
 
   Relay_log_info* rli = &((Master_info*)arg)->rli;
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 3a51b5c5610..d2392bdd9b1 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -8403,15 +8403,15 @@ my_bool mysql_rm_tmp_tables(void)
                                    (file->name[1] == '.' &&  !file->name[2])))
         continue;
 
-      if (!bcmp((uchar*) file->name, (uchar*) tmp_file_prefix,
-                tmp_file_prefix_length))
+      if (!memcmp(file->name, tmp_file_prefix,
+                  tmp_file_prefix_length))
       {
         char *ext= fn_ext(file->name);
         uint ext_len= strlen(ext);
         uint filePath_len= my_snprintf(filePath, sizeof(filePath),
                                        "%s%c%s", tmpdir, FN_LIBCHAR,
                                        file->name);
-        if (!bcmp((uchar*) reg_ext, (uchar*) ext, ext_len))
+        if (!memcmp(reg_ext, ext, ext_len))
         {
           handler *handler_file= 0;
           /* We should cut file extention before deleting of table */
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 4c1d4a98db0..023367cb747 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -83,9 +83,10 @@ enum enum_ha_read_modes { RFIRST, RNEXT, RPREV, RLAST, RKEY, RNEXT_SAME };
 enum enum_duplicates { DUP_ERROR, DUP_REPLACE, DUP_UPDATE };
 enum enum_delay_key_write { DELAY_KEY_WRITE_NONE, DELAY_KEY_WRITE_ON,
 			    DELAY_KEY_WRITE_ALL };
-enum enum_slave_exec_mode { SLAVE_EXEC_MODE_STRICT,
-                            SLAVE_EXEC_MODE_IDEMPOTENT,
-                            SLAVE_EXEC_MODE_LAST_BIT};
+
+#define SLAVE_EXEC_MODE_STRICT      (1U << 0)
+#define SLAVE_EXEC_MODE_IDEMPOTENT  (1U << 1)
+
 enum enum_mark_columns
 { MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE};
 
@@ -2418,7 +2419,7 @@ class select_result :public Sql_alloc {
 protected:
   THD *thd;
   SELECT_LEX_UNIT *unit;
-  uint nest_level;
+  int nest_level;
 public:
   select_result();
   virtual ~select_result() {};
@@ -2559,7 +2560,7 @@ public:
      Creates a select_export to represent INTO OUTFILE <filename> with a
      defined level of subquery nesting.
    */
-  select_export(sql_exchange *ex, uint nest_level_arg) :select_to_file(ex) 
+  select_export(sql_exchange *ex, int nest_level_arg) :select_to_file(ex) 
   {
     nest_level= nest_level_arg;
   }
@@ -2576,7 +2577,7 @@ public:
      Creates a select_export to represent INTO DUMPFILE <filename> with a
      defined level of subquery nesting.
    */  
-  select_dump(sql_exchange *ex, uint nest_level_arg) : 
+  select_dump(sql_exchange *ex, int nest_level_arg) : 
     select_to_file(ex) 
   {
     nest_level= nest_level_arg;
@@ -3046,7 +3047,7 @@ public:
      Creates a select_dumpvar to represent INTO <variable> with a defined 
      level of subquery nesting.
    */
-  select_dumpvar(uint nest_level_arg)
+  select_dumpvar(int nest_level_arg)
   {
     var_list.empty();
     row_count= 0;
diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc
index 75a738a0073..f6045e4704e 100644
--- a/sql/sql_repl.cc
+++ b/sql/sql_repl.cc
@@ -218,8 +218,7 @@ bool log_in_use(const char* log_name)
     if ((linfo = tmp->current_linfo))
     {
       pthread_mutex_lock(&linfo->lock);
-      result = !bcmp((uchar*) log_name, (uchar*) linfo->log_file_name,
-                     log_name_len);
+      result = !memcmp(log_name, linfo->log_file_name, log_name_len);
       pthread_mutex_unlock(&linfo->lock);
       if (result)
 	break;
diff --git a/sql/udf_example.c b/sql/udf_example.c
index 82af58ec502..637293209e0 100644
--- a/sql/udf_example.c
+++ b/sql/udf_example.c
@@ -141,7 +141,9 @@ typedef long long longlong;
 
 #ifdef HAVE_DLOPEN
 
+#if !defined(HAVE_GETHOSTBYADDR_R) || !defined(HAVE_SOLARIS_STYLE_GETHOST)
 static pthread_mutex_t LOCK_hostname;
+#endif
 
 /* These must be right or mysqld will not find the symbol! */
 
diff --git a/sql/unireg.h b/sql/unireg.h
index 3ff7f058e3c..4f6b647964d 100644
--- a/sql/unireg.h
+++ b/sql/unireg.h
@@ -129,8 +129,8 @@
 #define SPECIAL_LOG_QUERIES_NOT_USING_INDEXES 4096 /* Obsolete */
 
 	/* Extern defines */
-#define store_record(A,B) bmove_align((A)->B,(A)->record[0],(size_t) (A)->s->reclength)
-#define restore_record(A,B) bmove_align((A)->record[0],(A)->B,(size_t) (A)->s->reclength)
+#define store_record(A,B) memcpy((A)->B,(A)->record[0],(size_t) (A)->s->reclength)
+#define restore_record(A,B) memcpy((A)->record[0],(A)->B,(size_t) (A)->s->reclength)
 #define cmp_record(A,B) memcmp((A)->record[0],(A)->B,(size_t) (A)->s->reclength)
 #define empty_record(A) { \
                           restore_record((A),s->default_values); \
diff --git a/storage/heap/hp_hash.c b/storage/heap/hp_hash.c
index aaaa0fe833f..f56df42aab3 100644
--- a/storage/heap/hp_hash.c
+++ b/storage/heap/hp_hash.c
@@ -577,7 +577,7 @@ int hp_rec_key_cmp(HP_KEYDEF *keydef, const uchar *rec1, const uchar *rec2,
     }
     else
     {
-      if (bcmp(rec1+seg->start,rec2+seg->start,seg->length))
+      if (memcmp(rec1+seg->start,rec2+seg->start,seg->length))
 	return 1;
     }
   }
@@ -660,7 +660,7 @@ int hp_key_cmp(HP_KEYDEF *keydef, const uchar *rec, const uchar *key)
     }
     else
     {
-      if (bcmp(rec+seg->start,key,seg->length))
+      if (memcmp(rec+seg->start,key,seg->length))
 	return 1;
     }
   }
diff --git a/storage/heap/hp_test2.c b/storage/heap/hp_test2.c
index 5c548b6be74..bf06cf03035 100644
--- a/storage/heap/hp_test2.c
+++ b/storage/heap/hp_test2.c
@@ -406,7 +406,7 @@ int main(int argc, char *argv[])
   bmove(record2,record,reclength);
   if (heap_rsame(file,record,-1) || heap_rsame(file,record2,2))
     goto err;
-  if (bcmp(record2,record,reclength))
+  if (memcmp(record2,record,reclength))
   {
     puts("heap_rsame didn't find right record");
     goto end;
@@ -415,7 +415,7 @@ int main(int argc, char *argv[])
   puts("- Test of read through position");
   if (heap_rrnd(file,record,position))
     goto err;
-  if (bcmp(record3,record,reclength))
+  if (memcmp(record3,record,reclength))
   {
     puts("heap_frnd didn't find right record");
     goto end;
diff --git a/storage/innobase/os/os0file.c b/storage/innobase/os/os0file.c
index 7373a97cfb0..3396d1adf2f 100644
--- a/storage/innobase/os/os0file.c
+++ b/storage/innobase/os/os0file.c
@@ -3974,6 +3974,9 @@ os_aio_simulated_handle(
 	ulint		n;
 	ulint		i;
 
+	/* Fix compiler warning */
+	*consecutive_ios = NULL;
+
 	segment = os_aio_get_array_and_local_segment(&array, global_segment);
 
 restart:
diff --git a/storage/myisam/mi_open.c b/storage/myisam/mi_open.c
index f2f390862bd..8ecb07d75e8 100644
--- a/storage/myisam/mi_open.c
+++ b/storage/myisam/mi_open.c
@@ -139,7 +139,7 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
 	       (uchar*) myisam_file_magic, 4))
     {
       DBUG_PRINT("error",("Wrong header in %s",name_buff));
-      DBUG_DUMP("error_dump",(char*) share->state.header.file_version,
+      DBUG_DUMP("error_dump", share->state.header.file_version,
 		head_length);
       my_errno=HA_ERR_NOT_A_TABLE;
       goto err;
diff --git a/storage/myisam/mi_page.c b/storage/myisam/mi_page.c
index 76fac8688a7..90e31e72532 100644
--- a/storage/myisam/mi_page.c
+++ b/storage/myisam/mi_page.c
@@ -49,7 +49,7 @@ uchar *_mi_fetch_keypage(register MI_INFO *info, MI_KEYDEF *keyinfo,
   {
     DBUG_PRINT("error",("page %lu had wrong page length: %u",
 			(ulong) page, page_size));
-    DBUG_DUMP("page", (char*) tmp, keyinfo->block_length);
+    DBUG_DUMP("page", tmp, keyinfo->block_length);
     info->last_keypage = HA_OFFSET_ERROR;
     mi_print_error(info->s, HA_ERR_CRASHED);
     my_errno = HA_ERR_CRASHED;
diff --git a/storage/myisam/mi_search.c b/storage/myisam/mi_search.c
index 95f817e47aa..9c842fba544 100644
--- a/storage/myisam/mi_search.c
+++ b/storage/myisam/mi_search.c
@@ -819,7 +819,7 @@ uint _mi_get_pack_key(register MI_KEYDEF *keyinfo, uint nod_flag,
 	    DBUG_PRINT("error",
                        ("Found too long null packed key: %u of %u at 0x%lx",
                         length, keyseg->length, (long) *page_pos));
-	    DBUG_DUMP("key",(char*) *page_pos,16);
+	    DBUG_DUMP("key", *page_pos, 16);
             mi_print_error(keyinfo->share, HA_ERR_CRASHED);
 	    my_errno=HA_ERR_CRASHED;
 	    return 0;
@@ -876,7 +876,7 @@ uint _mi_get_pack_key(register MI_KEYDEF *keyinfo, uint nod_flag,
       {
         DBUG_PRINT("error",("Found too long packed key: %u of %u at 0x%lx",
                             length, keyseg->length, (long) *page_pos));
-        DBUG_DUMP("key",(char*) *page_pos,16);
+        DBUG_DUMP("key", *page_pos, 16);
         mi_print_error(keyinfo->share, HA_ERR_CRASHED);
         my_errno=HA_ERR_CRASHED;
         return 0;                               /* Error */
@@ -948,7 +948,7 @@ uint _mi_get_binary_pack_key(register MI_KEYDEF *keyinfo, uint nod_flag,
       DBUG_PRINT("error",
                  ("Found too long binary packed key: %u of %u at 0x%lx",
                   length, keyinfo->maxlength, (long) *page_pos));
-      DBUG_DUMP("key",(char*) *page_pos,16);
+      DBUG_DUMP("key", *page_pos, 16);
       mi_print_error(keyinfo->share, HA_ERR_CRASHED);
       my_errno=HA_ERR_CRASHED;
       DBUG_RETURN(0);                                 /* Wrong key */
diff --git a/storage/myisam/mi_test2.c b/storage/myisam/mi_test2.c
index 23c58638166..d7c168d01b0 100644
--- a/storage/myisam/mi_test2.c
+++ b/storage/myisam/mi_test2.c
@@ -415,7 +415,7 @@ int main(int argc, char *argv[])
     }
     ant=0;
     while (mi_rprev(file,read_record3,0) == 0 &&
-	   bcmp(read_record3+start,key,length) == 0) ant++;
+	   memcmp(read_record3+start,key,length) == 0) ant++;
     if (ant != dupp_keys)
     {
       printf("prev: Found: %d records of %d\n",ant,dupp_keys);
@@ -453,7 +453,7 @@ int main(int argc, char *argv[])
     goto end;
   }
   if (mi_rlast(file,read_record2,0) ||
-      bcmp(read_record2,read_record3,reclength))
+      memcmp(read_record2,read_record3,reclength))
   {
     printf("Can't find last record\n");
     DBUG_DUMP("record2",(uchar*) read_record2,reclength);
@@ -468,7 +468,7 @@ int main(int argc, char *argv[])
     printf("prev: I found: %d records of %d\n",ant,write_count);
     goto end;
   }
-  if (bcmp(read_record,read_record3,reclength))
+  if (memcmp(read_record,read_record3,reclength))
   {
     printf("Can't find first record\n");
     goto end;
@@ -483,7 +483,7 @@ int main(int argc, char *argv[])
       mi_rprev(file,read_record3,0) == 0 ||
       mi_rnext(file,read_record3,0))
       goto err;
-  if (bcmp(read_record,read_record3,reclength) != 0)
+  if (memcmp(read_record,read_record3,reclength) != 0)
      printf("Can't find first record\n");
 
   if (!silent)
@@ -495,7 +495,7 @@ int main(int argc, char *argv[])
       mi_rnext(file,read_record3,0) == 0 ||
       mi_rprev(file,read_record3,0))
       goto err;
-  if (bcmp(read_record2,read_record3,reclength))
+  if (memcmp(read_record2,read_record3,reclength))
      printf("Can't find last record\n");
 #ifdef NOT_ANYMORE
   if (!silent)
@@ -509,7 +509,7 @@ int main(int argc, char *argv[])
     bzero((char*) file->lastkey,file->s->base.max_key_length*2);
     if (mi_rkey(file,read_record,0,key2,(uint) i,HA_READ_PREFIX))
       goto err;
-    if (bcmp(read_record+start,key,(uint) i))
+    if (memcmp(read_record+start,key,(uint) i))
     {
       puts("Didn't find right record");
       goto end;
@@ -528,7 +528,7 @@ int main(int argc, char *argv[])
     opt_delete++;
     ant=1;
     while (mi_rnext(file,read_record3,0) == 0 &&
-	   bcmp(read_record3+start,key,length) == 0) ant++;
+	   memcmp(read_record3+start,key,length) == 0) ant++;
     if (ant != dupp_keys-1)
     {
       printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-1);
@@ -546,7 +546,7 @@ int main(int argc, char *argv[])
     opt_delete++;
     ant=1;
     while (mi_rprev(file,read_record3,0) == 0 &&
-	   bcmp(read_record3+start,key,length) == 0) ant++;
+	   memcmp(read_record3+start,key,length) == 0) ant++;
     if (ant != dupp_keys-2)
     {
       printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-2);
@@ -566,7 +566,7 @@ int main(int argc, char *argv[])
     if (mi_rnext(file,read_record,0))
       goto err;					/* Skall finnas poster */
     while (mi_rnext(file,read_record3,0) == 0 &&
-	   bcmp(read_record3+start,key,length) == 0) ant++;
+	   memcmp(read_record3+start,key,length) == 0) ant++;
     if (ant != dupp_keys-3)
     {
       printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-3);
@@ -581,7 +581,7 @@ int main(int argc, char *argv[])
     opt_delete++;
     ant=0;
     while (mi_rprev(file,read_record3,0) == 0 &&
-	   bcmp(read_record3+start,key,length) == 0) ant++;
+	   memcmp(read_record3+start,key,length) == 0) ant++;
     if (ant != dupp_keys-4)
     {
       printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-4);
@@ -604,7 +604,7 @@ int main(int argc, char *argv[])
   for (i=min(2,keys) ; i-- > 0 ;)
   {
     if (mi_rsame(file,read_record2,(int) i)) goto err;
-    if (bcmp(read_record,read_record2,reclength) != 0)
+    if (memcmp(read_record,read_record2,reclength) != 0)
     {
       printf("is_rsame didn't find same record\n");
       goto end;
diff --git a/storage/myisam/mi_unique.c b/storage/myisam/mi_unique.c
index 02fcd9289dd..fdba84a2e67 100644
--- a/storage/myisam/mi_unique.c
+++ b/storage/myisam/mi_unique.c
@@ -56,7 +56,7 @@ my_bool mi_check_unique(MI_INFO *info, MI_UNIQUEDEF *def, uchar *record,
     if (_mi_search_next(info,info->s->keyinfo+def->key, info->lastkey,
 			MI_UNIQUE_HASH_LENGTH, SEARCH_BIGGER,
 			info->s->state.key_root[def->key]) ||
-	bcmp((char*) info->lastkey, (char*) key_buff, MI_UNIQUE_HASH_LENGTH))
+	memcmp(info->lastkey, key_buff, MI_UNIQUE_HASH_LENGTH))
     {
       info->page_changed=1;			/* Can't optimize read next */
       info->lastpos=lastpos;
diff --git a/storage/myisammrg/ha_myisammrg.cc b/storage/myisammrg/ha_myisammrg.cc
index 7886cc2a5a2..8e18924c5b8 100644
--- a/storage/myisammrg/ha_myisammrg.cc
+++ b/storage/myisammrg/ha_myisammrg.cc
@@ -293,8 +293,9 @@ static int myisammrg_parent_open_callback(void *callback_param,
     }
   }
 
-  DBUG_PRINT("myrg", ("open: '%.*s'.'%.*s'", child_l->db_length, child_l->db,
-                      child_l->table_name_length, child_l->table_name));
+  DBUG_PRINT("myrg", ("open: '%.*s'.'%.*s'", (int) child_l->db_length,
+                      child_l->db, (int) child_l->table_name_length,
+                      child_l->table_name));
 
   /* Convert to lowercase if required. */
   if (lower_case_table_names && child_l->table_name_length)
@@ -341,7 +342,7 @@ static MI_INFO *myisammrg_attach_children_callback(void *callback_param)
   TABLE         *parent;
   TABLE         *child;
   TABLE_LIST    *child_l;
-  MI_INFO       *myisam;
+  MI_INFO       *UNINIT_VAR(myisam);
   DBUG_ENTER("myisammrg_attach_children_callback");
 
   my_errno= 0;
diff --git a/strings/CMakeLists.txt b/strings/CMakeLists.txt
index 3d9de566670..67e8ad22783 100755
--- a/strings/CMakeLists.txt
+++ b/strings/CMakeLists.txt
@@ -18,7 +18,7 @@ SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG -DSAFEMALLOC -DSAFE_MUT
 
 INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include)
 
-SET(STRINGS_SOURCES bchange.c bcmp.c bfill.c bmove512.c bmove_upp.c ctype-big5.c ctype-bin.c ctype-cp932.c
+SET(STRINGS_SOURCES bchange.c bfill.c bmove512.c bmove_upp.c ctype-big5.c ctype-bin.c ctype-cp932.c
                 ctype-czech.c ctype-euc_kr.c ctype-eucjpms.c ctype-extra.c ctype-gb2312.c ctype-gbk.c
                 ctype-latin1.c ctype-mb.c ctype-simple.c ctype-sjis.c ctype-tis620.c ctype-uca.c
                 ctype-ucs2.c ctype-ujis.c ctype-utf8.c ctype-win1250ch.c ctype.c decimal.c int2str.c
diff --git a/strings/Makefile.am b/strings/Makefile.am
index db9016b7148..1303af91820 100644
--- a/strings/Makefile.am
+++ b/strings/Makefile.am
@@ -21,19 +21,19 @@ pkglib_LIBRARIES =	libmystrings.a
 # Exact one of ASSEMBLER_X
 if ASSEMBLER_x86
 ASRCS		= strings-x86.s longlong2str-x86.s my_strtoll10-x86.s
-CSRCS		= bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c str_alloc.c longlong2str_asm.c my_strchr.c strmov.c
+CSRCS		= bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c str_alloc.c longlong2str_asm.c my_strchr.c strmov.c
 else
 if ASSEMBLER_sparc32
 # These file MUST all be on the same line!! Otherwise automake
 # generats a very broken makefile
 ASRCS		= bmove_upp-sparc.s strappend-sparc.s strend-sparc.s strinstr-sparc.s strmake-sparc.s strmov-sparc.s strnmov-sparc.s strstr-sparc.s
-CSRCS		= strcont.c strfill.c strcend.c is_prefix.c longlong2str.c bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c strxmov.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c my_strtoll10.c str_alloc.c my_strchr.c strmov.c
+CSRCS		= strcont.c strfill.c strcend.c is_prefix.c longlong2str.c bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c strxmov.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c my_strtoll10.c str_alloc.c my_strchr.c strmov.c
 else
 #no assembler
 ASRCS		=
 # These file MUST all be on the same line!! Otherwise automake
 # generats a very broken makefile
-CSRCS		= strxmov.c bmove_upp.c strappend.c strcont.c strend.c strfill.c strcend.c is_prefix.c strstr.c strinstr.c strmake.c strnmov.c strmov.c longlong2str.c bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c my_strtoll10.c str_alloc.c my_strchr.c
+CSRCS		= strxmov.c bmove_upp.c strappend.c strcont.c strend.c strfill.c strcend.c is_prefix.c strstr.c strinstr.c strmake.c strnmov.c strmov.c longlong2str.c bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c my_strtoll10.c str_alloc.c my_strchr.c
 endif
 endif
 
@@ -57,7 +57,7 @@ EXTRA_DIST =		ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc
 			CHARSET_INFO.txt
 
 libmystrings_a_LIBADD=
-conf_to_src_SOURCES = conf_to_src.c xml.c ctype.c bcmp.c
+conf_to_src_SOURCES = conf_to_src.c xml.c ctype.c
 conf_to_src_LDADD=
 #force static linking of conf_to_src - essential when linking against
 #custom installation of libc
diff --git a/strings/bcmp.c b/strings/bcmp.c
deleted file mode 100644
index 1b6ed22fc22..00000000000
--- a/strings/bcmp.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Copyright (C) 2000 MySQL AB
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; version 2 of the License.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
-
-/*
-  bcmp(s1, s2, len) returns 0 if the "len" bytes starting at "s1" are
-  identical to the "len" bytes starting at "s2", non-zero if they are
-  different.
-  Now only used with purify because purify gives wrong warnings when
-  comparing a shorter string with bcmp.
-*/
-
-#include <my_global.h>
-#include "m_string.h"
-
-#ifdef HAVE_purify
-#undef bcmp
-#undef HAVE_BCMP
-#endif
-
-#if !defined(bcmp) && !defined(HAVE_BCMP)
-
-#if defined(MC68000) && defined(DS90)
-
-int bcmp(s1,s2, len)
-const char *s1;
-const char *s2;
-uint len;					/* 0 <= len <= 65535 */
-{
-  asm("		movl	12(a7),d0	");
-  asm("		subqw	#1,d0		");
-  asm("		blt	.L5		");
-  asm("		movl	4(a7),a1	");
-  asm("		movl	8(a7),a0	");
-  asm(".L4:	cmpmb	(a0)+,(a1)+	");
-  asm("		dbne	d0,.L4		");
-  asm(".L5:	addqw	#1,d0		");
-}
-
-#else
-
-#ifndef HAVE_purify
-size_t bcmp(register const uchar *s1,register const uchar *s2,
-            register size_t len)
-#else
-size_t my_bcmp(register const uchar *s1,register const uchar *s2,
-               register size_t len)
-#endif
-{
-  while (len-- != 0 && *s1++ == *s2++) ;
-  return len+1;
-}
-
-#endif
-#endif /* BSD_FUNCS */
diff --git a/strings/ctype-ucs2.c b/strings/ctype-ucs2.c
index cead55f8a0a..865a19b0828 100644
--- a/strings/ctype-ucs2.c
+++ b/strings/ctype-ucs2.c
@@ -203,7 +203,7 @@ static int my_strnncoll_ucs2(CHARSET_INFO *cs,
                              my_bool t_is_prefix)
 {
   int s_res,t_res;
-  my_wc_t UNINIT_VAR(s_wc),t_wc;
+  my_wc_t UNINIT_VAR(s_wc), UNINIT_VAR(t_wc);
   const uchar *se=s+slen;
   const uchar *te=t+tlen;
   MY_UNICASE_INFO **uni_plane= cs->caseinfo;
@@ -317,7 +317,7 @@ static int my_strncasecmp_ucs2(CHARSET_INFO *cs,
 			       const char *s, const char *t,  size_t len)
 {
   int s_res,t_res;
-  my_wc_t UNINIT_VAR(s_wc),t_wc;
+  my_wc_t UNINIT_VAR(s_wc), UNINIT_VAR(t_wc);
   const char *se=s+len;
   const char *te=t+len;
   MY_UNICASE_INFO **uni_plane= cs->caseinfo;
@@ -1384,7 +1384,7 @@ int my_strnncoll_ucs2_bin(CHARSET_INFO *cs,
                           my_bool t_is_prefix)
 {
   int s_res,t_res;
-  my_wc_t UNINIT_VAR(s_wc),t_wc;
+  my_wc_t UNINIT_VAR(s_wc), UNINIT_VAR(t_wc);
   const uchar *se=s+slen;
   const uchar *te=t+tlen;
 
diff --git a/strings/make-ccc b/strings/make-ccc
index 78d5ad1ce42..93be2bbf862 100755
--- a/strings/make-ccc
+++ b/strings/make-ccc
@@ -1,3 +1,3 @@
-ccc -DHAVE_CONFIG_H -I. -I. -I.. -I./../include -I../include -O -DDBUG_OFF -fast -O3 -fomit-frame-pointer -c atof.c bchange.c bcmp.c bfill.c bmove.c bmove512.c bmove_upp.c ct_init.c ctype-latin1.c int2str.c is_prefix.c llstr.c longlong2str.c r_strinstr.c str2int.c strappend.c strcend.c strcont.c strend.c strfill.c strinstr.c strmake.c strmov.c strnmov.c strstr.c strtol.c strtoll.c strtoul.c strtoull.c strxmov.c strxnmov.c
+ccc -DHAVE_CONFIG_H -I. -I. -I.. -I./../include -I../include -O -DDBUG_OFF -fast -O3 -fomit-frame-pointer -c atof.c bchange.c bfill.c bmove.c bmove512.c bmove_upp.c ct_init.c ctype-latin1.c int2str.c is_prefix.c llstr.c longlong2str.c r_strinstr.c str2int.c strappend.c strcend.c strcont.c strend.c strfill.c strinstr.c strmake.c strmov.c strnmov.c strstr.c strtol.c strtoll.c strtoul.c strtoull.c strxmov.c strxnmov.c
 rm libmystrings.a
 ar -cr libmystrings.a atof.o
diff --git a/strings/str_test.c b/strings/str_test.c
index 3ddfca39419..a476809e22d 100644
--- a/strings/str_test.c
+++ b/strings/str_test.c
@@ -50,10 +50,10 @@ int main(void)
   errors=tests=0;
   init_strings();
 
-  test_arg("bcmp(from,to,5)",(long) my_test(bcmp(from,to,5)),1L);
-  test_arg("bcmp(from,from,5)",(long) bcmp(from,from,5),0L);
+  test_arg("memcmp(from,to,5)",(long) my_test(memcmp(from,to,5)),1L);
+  test_arg("memcmp(from,from,5)",(long) memcmp(from,from,5),0L);
 
-  test_arg("bcmp(from,to,0)",(long) bcmp(from,to,0),0L);
+  test_arg("memcmp(from,to,0)",(long) memcmp(from,to,0),0L);
   test_arg("strend(from)",(long) strend(from),(long) from+F_LEN);
   test_arg("strchr(v1,'M')",(long) strchr(v1,'M'),(long) v1);
   test_arg("strchr(v1,'y')",(long) strchr(v1,'y'),(long) v1+4);
@@ -93,7 +93,7 @@ int main(void)
   test_strarg("bmove_upp(to+6,from+6,3)",(bmove_upp(to+6,from+6,3),0L),INT_MAX32,
 	       3,T_CHAR,3,F_CHAR,0,0);
   test_strarg("bmove_upp(to,from,0)",(bmove_upp(to,from,0),0L),INT_MAX32,0,0);
-  test_strarg("bmove_align(to,from,8)",(bmove_align(to,from,8),0L),INT_MAX32,
+  test_strarg("memcpy(to,from,8)",(memcpy(to,from,8),0L),INT_MAX32,
 	      8,F_CHAR,0,0);
   test_strarg("strappend(to,3,' ')",(strappend(to,3,' '),0L),INT_MAX32,
 	      3,T_CHAR,1,0,T_LEN-4,T_CHAR,1,0,0,0);
@@ -233,7 +233,7 @@ int compare_buff(const char *message, char * b1, char * b2, int length,
 {
   int i,error=0;
 
-  if (bcmp(b1,b2,length))
+  if (memcmp(b1,b2,length))
   {
     errors++;
     printf("func: '%s'   Buffers differ\nIs:        ",message);
diff --git a/strings/xml.c b/strings/xml.c
index 1b697ec6b26..f3cfaad54fa 100644
--- a/strings/xml.c
+++ b/strings/xml.c
@@ -123,16 +123,16 @@ static int my_xml_scan(MY_XML_PARSER *p,MY_XML_ATTR *a)
   a->beg=p->cur;
   a->end=p->cur;
   
-  if ((p->end - p->cur > 3) && !bcmp(p->cur,"<!--",4))
+  if ((p->end - p->cur > 3) && !memcmp(p->cur,"<!--",4))
   {
-    for (; (p->cur < p->end) && bcmp(p->cur, "-->", 3); p->cur++)
+    for (; (p->cur < p->end) && memcmp(p->cur, "-->", 3); p->cur++)
     {}
-    if (!bcmp(p->cur, "-->", 3))
+    if (!memcmp(p->cur, "-->", 3))
       p->cur+=3;
     a->end=p->cur;
     lex=MY_XML_COMMENT;
   }
-  else if (!bcmp(p->cur, "<![CDATA[",9))
+  else if (!memcmp(p->cur, "<![CDATA[",9))
   {
     p->cur+= 9;
     for (; p->cur < p->end - 2 ; p->cur++)
diff --git a/tests/mysql_client_test.c b/tests/mysql_client_test.c
index 97d146ff9ef..c492db723b0 100644
--- a/tests/mysql_client_test.c
+++ b/tests/mysql_client_test.c
@@ -18096,7 +18096,7 @@ static void test_bug53371()
 static void test_bug53907()
 {
   int rc;
-  char buf[] = "\x4test\x14../client_test_db/t1";
+  uchar buf[] = "\x4test\x14../client_test_db/t1";
 
   myheader("test_bug53907");