Another long patch to remove the rest of the OS2 support.

include/config-win.h:
  Removing OS2 stuff
include/errmsg.h:
  Removing OS2 stuff
include/m_string.h:
  OS2 removal
include/my_global.h:
  OS2 removal
include/my_net.h:
  OS2 removal
include/my_no_pthread.h:
  OS2 removal
include/my_pthread.h:
  OS2 removal
include/thr_alarm.h:
  OS2 removal
mysys/default.c:
  OS2 removal
mysys/mf_path.c:
  OS2 removal
mysys/mf_tempdir.c:
  OS2 removal
mysys/mf_tempfile.c:
  OS2 removal
mysys/my_access.c:
  OS2 removal
mysys/my_clock.c:
  OS2 removal
mysys/my_copy.c:
  OS2 removal
mysys/my_create.c:
  OS2 removal
mysys/my_dup.c:
  OS2 removal
mysys/my_file.c:
  OS2 removal
mysys/my_getwd.c:
  OS2 removal
mysys/my_init.c:
  OS2 removal
mysys/my_lib.c:
  OS2 removal
mysys/my_lock.c:
  OS2 removal
mysys/my_mkdir.c:
  OS2 removal
mysys/my_open.c:
  OS2 removal
mysys/my_pthread.c:
  OS2 removal
mysys/my_redel.c:
  OS2 removal
mysys/my_sleep.c:
  OS2 removal
mysys/my_static.c:
  OS2 removal
mysys/my_thr_init.c:
  OS2 removal
mysys/thr_alarm.c:
  OS2 removal
storage/myisam/myisamchk.c:
  OS2 removal

31 files changed, 41 insertions, 341 deletions

diff --git a/include/config-win.h b/include/config-win.h
index 14afa38c8a7..b6fb1077cc6 100644
--- a/include/config-win.h
+++ b/include/config-win.h
@@ -122,12 +122,12 @@ functions */
 
 /* Type information */
 
-#if defined(__EMX__) || !defined(HAVE_UINT)
+#if !defined(HAVE_UINT)
 #undef HAVE_UINT
 #define HAVE_UINT
 typedef unsigned short	ushort;
 typedef unsigned int	uint;
-#endif /* defined(__EMX__) || !defined(HAVE_UINT) */
+#endif /* !defined(HAVE_UINT) */
 
 typedef unsigned __int64 ulonglong;	/* Microsofts 64 bit types */
 typedef __int64 longlong;
diff --git a/include/errmsg.h b/include/errmsg.h
index 1dd5759c104..4018e3ee01d 100644
--- a/include/errmsg.h
+++ b/include/errmsg.h
@@ -29,9 +29,7 @@ extern const char *client_errors[];	/* Error messages */
 
 #define CR_MIN_ERROR		2000	/* For easier client code */
 #define CR_MAX_ERROR		2999
-#if defined(OS2) && defined(MYSQL_SERVER)
-#define CER(X) client_errors[(X)-CR_MIN_ERROR]
-#elif !defined(ER)
+#if !defined(ER)
 #define ER(X) client_errors[(X)-CR_MIN_ERROR]
 #endif
 #define CLIENT_ERRMAP		2	/* Errormap used by my_error() */
diff --git a/include/m_string.h b/include/m_string.h
index c02ce92cd88..c580e38e177 100644
--- a/include/m_string.h
+++ b/include/m_string.h
@@ -84,7 +84,7 @@
 # define bmove_align(A,B,C)    memcpy((A),(B),(C))
 #endif
 
-#if defined(__cplusplus) && !defined(OS2)
+#if defined(__cplusplus)
 extern "C" {
 #endif
 
@@ -256,7 +256,7 @@ extern int my_vsnprintf( char *str, size_t n,
                                 const char *format, va_list ap );
 extern int my_snprintf(char* to, size_t n, const char* fmt, ...);
 
-#if defined(__cplusplus) && !defined(OS2)
+#if defined(__cplusplus)
 }
 #endif
 #endif
diff --git a/include/my_global.h b/include/my_global.h
index 257d721ec95..500481fd6b8 100644
--- a/include/my_global.h
+++ b/include/my_global.h
@@ -254,7 +254,7 @@
 #endif
 #endif
 
-#if defined(THREAD) && !defined(__WIN__) && !defined(OS2)
+#if defined(THREAD) && !defined(__WIN__)
 #ifndef _POSIX_PTHREAD_SEMANTICS
 #define _POSIX_PTHREAD_SEMANTICS /* We want posix threads */
 #endif
@@ -459,9 +459,7 @@ extern "C" int madvise(void *addr, size_t len, int behav);
 #define POSIX_MISTAKE 1		/* regexp: Fix stupid spec error */
 #define USE_REGEX 1		/* We want the use the regex library */
 /* Do not define for ultra sparcs */
-#ifndef OS2
 #define USE_BMOVE512 1		/* Use this unless system bmove is faster */
-#endif
 
 #define QUOTE_ARG(x)		#x	/* Quote argument (before cpp) */
 #define STRINGIFY_ARG(x) QUOTE_ARG(x)	/* Quote argument, after cpp */
@@ -506,7 +504,7 @@ int	__void__;
 #define min(a, b)	((a) < (b) ? (a) : (b))
 #endif
 
-#if defined(__EMX__) || !defined(HAVE_UINT)
+#if !defined(HAVE_UINT)
 #undef HAVE_UINT
 #define HAVE_UINT
 typedef unsigned int uint;
@@ -684,14 +682,9 @@ typedef SOCKET_SIZE_TYPE size_socket;
 #define FN_DEVCHAR	':'
 
 #ifndef FN_LIBCHAR
-#ifdef __EMX__
-#define FN_LIBCHAR	'\\'
-#define FN_ROOTDIR	"\\"
-#else
 #define FN_LIBCHAR	'/'
 #define FN_ROOTDIR	"/"
 #endif
-#endif
 #define MY_NFILE	64	/* This is only used to save filenames */
 #ifndef OS_FILE_LIMIT
 #define OS_FILE_LIMIT	65535
@@ -738,11 +731,7 @@ typedef SOCKET_SIZE_TYPE size_socket;
 
 #undef remove		/* Crashes MySQL on SCO 5.0.0 */
 #ifndef __WIN__
-#ifdef OS2
-#define closesocket(A)	soclose(A)
-#else
 #define closesocket(A)	close(A)
-#endif
 #ifndef ulonglong2double
 #define ulonglong2double(A) ((double) (ulonglong) (A))
 #define my_off_t2double(A)  ((double) (my_off_t) (A))
@@ -951,7 +940,7 @@ typedef ulonglong my_off_t;
 typedef unsigned long my_off_t;
 #endif
 #define MY_FILEPOS_ERROR	(~(my_off_t) 0)
-#if !defined(__WIN__) && !defined(OS2)
+#if !defined(__WIN__)
 typedef off_t os_off_t;
 #endif
 
@@ -964,16 +953,6 @@ typedef off_t os_off_t;
 #define SOCKET_EADDRINUSE WSAEADDRINUSE
 #define SOCKET_ENFILE	ENFILE
 #define SOCKET_EMFILE	EMFILE
-#elif defined(OS2)
-#define socket_errno	sock_errno()
-#define SOCKET_EINTR	SOCEINTR
-#define SOCKET_EAGAIN	SOCEINPROGRESS
-#define SOCKET_ETIMEDOUT SOCKET_EINTR
-#define SOCKET_EWOULDBLOCK SOCEWOULDBLOCK
-#define SOCKET_EADDRINUSE SOCEADDRINUSE
-#define SOCKET_ENFILE	SOCENFILE
-#define SOCKET_EMFILE	SOCEMFILE
-#define closesocket(A)	soclose(A)
 #else /* Unix */
 #define socket_errno	errno
 #define closesocket(A)	close(A)
diff --git a/include/my_net.h b/include/my_net.h
index 71914964e46..f953a832e6b 100644
--- a/include/my_net.h
+++ b/include/my_net.h
@@ -53,12 +53,6 @@ C_MODE_START
 #endif
 #endif
 
-#if defined(__EMX__)
-#include <sys/ioctl.h>
-#define ioctlsocket(A,B,C) ioctl((A),(B),(void *)(C),sizeof(*(C)))
-#undef HAVE_FCNTL
-#endif	/* defined(__EMX__) */
-
 #if defined(MSDOS) || defined(__WIN__)
 #define O_NONBLOCK 1    /* For emulation of fcntl() */
 #endif
diff --git a/include/my_no_pthread.h b/include/my_no_pthread.h
index 5691de08783..f86e8e60642 100644
--- a/include/my_no_pthread.h
+++ b/include/my_no_pthread.h
@@ -26,7 +26,7 @@
   even in non-threaded builds.
   Case in point: 'mf_keycache.c'
 */
-#if defined(__WIN__) || defined(OS2)
+#if defined(__WIN__)
 
 #elif defined(HAVE_UNIXWARE7_THREADS)
 /* #include <thread.h>   Currently, not relevant. Enable if needed. */
diff --git a/include/my_pthread.h b/include/my_pthread.h
index 9146cab8589..c05907b47fa 100644
--- a/include/my_pthread.h
+++ b/include/my_pthread.h
@@ -31,19 +31,9 @@ extern "C" {
 #define EXTERNC
 #endif /* __cplusplus */ 
 
-#if defined(__WIN__) || defined(OS2)
+#if defined(__WIN__)
 
-#ifdef OS2
-typedef ULONG     HANDLE;
-typedef ULONG     DWORD;
-typedef int sigset_t;
-#endif
-
-#ifdef OS2
-typedef HMTX             pthread_mutex_t;
-#else
 typedef CRITICAL_SECTION pthread_mutex_t;
-#endif
 typedef HANDLE		 pthread_t;
 typedef struct thread_attr {
     DWORD dwStackSize ;
@@ -62,30 +52,19 @@ typedef struct st_pthread_link {
 
 typedef struct {
   uint32 waiting;
-#ifdef OS2
-  HEV    semaphore;
-#else
   HANDLE semaphore;
-#endif
 } pthread_cond_t;
 
 
-#ifndef OS2
 struct timespec {		/* For pthread_cond_timedwait() */
     time_t tv_sec;
     long tv_nsec;
 };
-#endif
 
 typedef int pthread_mutexattr_t;
 #define win_pthread_self my_thread_var->pthread_self
-#ifdef OS2
-#define pthread_handler_t EXTERNC void * _Optlink
-typedef void * (_Optlink *pthread_handler)(void *);
-#else
 #define pthread_handler_t EXTERNC void * __cdecl
 typedef void * (__cdecl *pthread_handler)(void *);
-#endif
 
 void win_pthread_init(void);
 int win_pthread_setspecific(void *A,void *B,uint length);
@@ -107,10 +86,8 @@ struct tm *gmtime_r(const time_t *timep,struct tm *tmp);
 
 void pthread_exit(void *a);	 /* was #define pthread_exit(A) ExitThread(A)*/
 
-#ifndef OS2
 #define ETIMEDOUT 145		    /* Win32 doesn't have this */
 #define getpid() GetCurrentThreadId()
-#endif
 #define pthread_self() win_pthread_self
 #define HAVE_LOCALTIME_R		1
 #define _REENTRANT			1
@@ -145,15 +122,6 @@ void pthread_exit(void *a);	 /* was #define pthread_exit(A) ExitThread(A)*/
 #endif /* USE_TLS */
 
 #define pthread_equal(A,B) ((A) == (B))
-#ifdef OS2
-extern int pthread_mutex_init (pthread_mutex_t *, const pthread_mutexattr_t *);
-extern int pthread_mutex_lock (pthread_mutex_t *);
-extern int pthread_mutex_unlock (pthread_mutex_t *);
-extern int pthread_mutex_destroy (pthread_mutex_t *);
-#define my_pthread_setprio(A,B)  DosSetPriority(PRTYS_THREAD,PRTYC_NOCHANGE, B, A)
-#define pthread_kill(A,B) raise(B)
-#define pthread_exit(A) pthread_dummy()
-#else
 #define pthread_mutex_init(A,B)  (InitializeCriticalSection(A),0)
 #define pthread_mutex_lock(A)	 (EnterCriticalSection(A),0)
 #define pthread_mutex_trylock(A) (WaitForSingleObject((A), 0) == WAIT_TIMEOUT)
@@ -161,7 +129,6 @@ extern int pthread_mutex_destroy (pthread_mutex_t *);
 #define pthread_mutex_destroy(A) DeleteCriticalSection(A)
 #define my_pthread_setprio(A,B)  SetThreadPriority(GetCurrentThread(), (B))
 #define pthread_kill(A,B) pthread_dummy(0)
-#endif /* OS2 */
 
 /* Dummy defines for easier code */
 #define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
@@ -257,9 +224,6 @@ extern int my_sigwait(const sigset_t *set,int *sig);
 #ifdef HAVE_SYNCH_H
 #include <synch.h>
 #endif
-#if defined(__EMX__) && (!defined(EMX_PTHREAD_REV) || (EMX_PTHREAD_REV < 2))
-#error Requires at least rev 2 of EMX pthreads library.
-#endif
 
 #ifdef __NETWARE__
 void my_pthread_exit(void *status);
@@ -382,15 +346,12 @@ extern int my_pthread_cond_timedwait(pthread_cond_t *cond,
 #define pthread_cond_timedwait(A,B,C) my_pthread_cond_timedwait((A),(B),(C))
 #endif
 
-#if defined(OS2)
-#define my_pthread_getspecific(T,A) ((T) &(A))
-#define pthread_setspecific(A,B) win_pthread_setspecific(&(A),(B),sizeof(A))
-#elif !defined( HAVE_NONPOSIX_PTHREAD_GETSPECIFIC)
+#if !defined( HAVE_NONPOSIX_PTHREAD_GETSPECIFIC)
 #define my_pthread_getspecific(A,B) ((A) pthread_getspecific(B))
 #else
 #define my_pthread_getspecific(A,B) ((A) my_pthread_getspecific_imp(B))
 void *my_pthread_getspecific_imp(pthread_key_t key);
-#endif /* OS2 */
+#endif
 
 #ifndef HAVE_LOCALTIME_R
 struct tm *localtime_r(const time_t *clock, struct tm *res);
diff --git a/include/thr_alarm.h b/include/thr_alarm.h
index 7a10d6886ce..c49bc2588d1 100644
--- a/include/thr_alarm.h
+++ b/include/thr_alarm.h
@@ -73,14 +73,6 @@ typedef struct st_thr_alarm_entry
   rf_SetTimer crono;
 } thr_alarm_entry;
 
-#elif defined(__EMX__) || defined(OS2)
-
-typedef struct st_thr_alarm_entry
-{
-  uint crono;
-  uint event;
-} thr_alarm_entry;
-
 #else /* System with posix threads */
 
 typedef int thr_alarm_entry;
diff --git a/mysys/default.c b/mysys/default.c
index 90f8dc5f689..580bcc19eca 100644
--- a/mysys/default.c
+++ b/mysys/default.c
@@ -601,7 +601,7 @@ static int search_default_file_with_ext(Process_option_func opt_handler,
     strmov(name,config_file);
   }
   fn_format(name,name,"","",4);
-#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined(__WIN__) && !defined(__NETWARE__)
   {
     MY_STAT stat_info;
     if (!my_stat(name,&stat_info,MYF(0)))
@@ -1001,10 +1001,6 @@ static void init_default_directories()
 #elif defined(__NETWARE__)
   *ptr++= "sys:/etc/";
 #else
-#if defined(__EMX__) || defined(OS2)
-  if ((env= getenv("ETC")))
-    *ptr++= env;
-#endif
   *ptr++= "/etc/";
 #endif
   if ((env= getenv(STRINGIFY_ARG(DEFAULT_HOME_ENV))))
diff --git a/mysys/mf_path.c b/mysys/mf_path.c
index 1ecd5fbb2b1..cdaee74dd2c 100644
--- a/mysys/mf_path.c
+++ b/mysys/mf_path.c
@@ -73,7 +73,7 @@ my_string my_path(my_string to, const char *progname,
 	/* test if file without filename is found in path */
 	/* Returns to if found and to has dirpart if found, else NullS */
 
-#if defined(MSDOS) || defined(__WIN__) || defined(__EMX__) || defined(OS2)
+#if defined(MSDOS) || defined(__WIN__)
 #define F_OK 0
 #define PATH_SEP ';'
 #define PROGRAM_EXTENSION ".exe"
diff --git a/mysys/mf_tempdir.c b/mysys/mf_tempdir.c
index e79980ab931..d12b73a2ca2 100644
--- a/mysys/mf_tempdir.c
+++ b/mysys/mf_tempdir.c
@@ -17,7 +17,7 @@
 #include "mysys_priv.h"
 #include <m_string.h>
 
-#if defined( __WIN__) || defined(OS2) || defined(__NETWARE__)
+#if defined( __WIN__) || defined(__NETWARE__)
 #define DELIM ';'
 #else
 #define DELIM ':'
@@ -38,7 +38,7 @@ my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist)
   {
     /* Get default temporary directory */
     pathlist=getenv("TMPDIR");	/* Use this if possible */
-#if defined( __WIN__) || defined(OS2) || defined(__NETWARE__)
+#if defined( __WIN__) || defined(__NETWARE__)
     if (!pathlist)
       pathlist=getenv("TEMP");
     if (!pathlist)
diff --git a/mysys/mf_tempfile.c b/mysys/mf_tempfile.c
index a15bda4da6d..b079b9ec8e3 100644
--- a/mysys/mf_tempfile.c
+++ b/mysys/mf_tempfile.c
@@ -24,7 +24,7 @@
 #endif
 
 #ifdef HAVE_TEMPNAM
-#if !defined(MSDOS) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined(MSDOS) && !defined(__NETWARE__)
 extern char **environ;
 #endif
 #endif
@@ -121,16 +121,7 @@ File create_temp_file(char *to, const char *dir, const char *prefix,
       to[1]= 0;
       dir=to;
     }
-#ifdef OS2
-    /* changing environ variable doesn't work with VACPP */
-    char  buffer[256], *end;
-    buffer[sizeof(buffer)-1]= 0;
-    end= strxnmov(buffer, sizeof(buffer)-1, (char*) "TMP=", dir, NullS);
-    /* remove ending backslash */
-    if (end[-1] == '\\')
-      end[-1]= 0;
-    putenv(buffer);
-#elif !defined(__NETWARE__)
+#if !defined(__NETWARE__)
     old_env= (char**) environ;
     if (dir)
     {				/* Don't use TMPDIR if dir is given */
@@ -152,7 +143,7 @@ File create_temp_file(char *to, const char *dir, const char *prefix,
     {
       DBUG_PRINT("error",("Got error: %d from tempnam",errno));
     }
-#if !defined(OS2) && !defined(__NETWARE__)
+#if !defined(__NETWARE__)
     environ=(const char**) old_env;
 #endif
   }
diff --git a/mysys/my_access.c b/mysys/my_access.c
index 99e7a28914d..805dc1ee5d1 100644
--- a/mysys/my_access.c
+++ b/mysys/my_access.c
@@ -54,7 +54,7 @@ int my_access(const char *path, int amode)
 
 #endif /* __WIN__ */
 
-#if defined(MSDOS) || defined(__WIN__) || defined(__EMX__)
+#if defined(MSDOS) || defined(__WIN__)
 
 /*
   List of file names that causes problem on windows
@@ -112,11 +112,3 @@ int check_if_legal_filename(const char *path)
   DBUG_RETURN(0);
 }
 #endif
-
-
-#ifdef OS2
-int check_if_legal_filename(const char *path)
-{
-  return 0;
-}
-#endif /* OS2 */
diff --git a/mysys/my_clock.c b/mysys/my_clock.c
index a192bde056d..384239bb2b2 100644
--- a/mysys/my_clock.c
+++ b/mysys/my_clock.c
@@ -17,14 +17,14 @@
 #define USES_TYPES
 #include "my_global.h"
 
-#if !defined(_MSC_VER) && !defined(__BORLANDC__) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined(_MSC_VER) && !defined(__BORLANDC__) && !defined(__NETWARE__)
 #include "mysys_priv.h"
 #include <sys/times.h>
 #endif
 
 long my_clock(void)
 {
-#if !defined(MSDOS) && !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined(MSDOS) && !defined(__WIN__) && !defined(__NETWARE__)
   struct tms tmsbuf;
   VOID(times(&tmsbuf));
   return (tmsbuf.tms_utime + tmsbuf.tms_stime);
diff --git a/mysys/my_copy.c b/mysys/my_copy.c
index 2fb022a25f2..342b1cdc104 100644
--- a/mysys/my_copy.c
+++ b/mysys/my_copy.c
@@ -95,7 +95,7 @@ int my_copy(const char *from, const char *to, myf MyFlags)
     if (MyFlags & MY_HOLD_ORIGINAL_MODES && !new_file_stat)
 	DBUG_RETURN(0);			/* File copyed but not stat */
     VOID(chmod(to, stat_buff.st_mode & 07777)); /* Copy modes */
-#if !defined(MSDOS) && !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined(MSDOS) && !defined(__WIN__) && !defined(__NETWARE__)
     VOID(chown(to, stat_buff.st_uid,stat_buff.st_gid)); /* Copy ownership */
 #endif
 #if !defined(VMS) && !defined(__ZTC__)
diff --git a/mysys/my_create.c b/mysys/my_create.c
index a85417c7701..d42e7e0db69 100644
--- a/mysys/my_create.c
+++ b/mysys/my_create.c
@@ -19,7 +19,7 @@
 #include <my_dir.h>
 #include "mysys_err.h"
 #include <errno.h>
-#if defined(MSDOS) || defined(__WIN__) || defined(__EMX__) || defined(OS2)
+#if defined(MSDOS) || defined(__WIN__)
 #include <share.h>
 #endif
 
@@ -41,13 +41,13 @@ File my_create(const char *FileName, int CreateFlags, int access_flags,
   DBUG_PRINT("my",("Name: '%s' CreateFlags: %d  AccessFlags: %d  MyFlags: %d",
 		   FileName, CreateFlags, access_flags, MyFlags));
 
-#if !defined(NO_OPEN_3) && !defined(__EMX__)
+#if !defined(NO_OPEN_3)
   fd = open((my_string) FileName, access_flags | O_CREAT,
 	    CreateFlags ? CreateFlags : my_umask);
 #elif defined(VMS)
   fd = open((my_string) FileName, access_flags | O_CREAT, 0,
 	    "ctx=stm","ctx=bin");
-#elif defined(MSDOS) || defined(__EMX__) || defined(OS2)
+#elif defined(MSDOS)
   if (access_flags & O_SHARE)
     fd = sopen((my_string) FileName, access_flags | O_CREAT | O_BINARY,
 	       SH_DENYNO, MY_S_IREAD | MY_S_IWRITE);
diff --git a/mysys/my_dup.c b/mysys/my_dup.c
index 4b7434e29ea..f4c420eb459 100644
--- a/mysys/my_dup.c
+++ b/mysys/my_dup.c
@@ -19,7 +19,7 @@
 #include "mysys_err.h"
 #include <my_dir.h>
 #include <errno.h>
-#if defined(MSDOS) || defined(__WIN__) || defined(__EMX__)
+#if defined(MSDOS) || defined(__WIN__)
 #include <share.h>
 #endif
 
diff --git a/mysys/my_file.c b/mysys/my_file.c
index 6a9d39cf944..28d77cdf8b8 100644
--- a/mysys/my_file.c
+++ b/mysys/my_file.c
@@ -72,25 +72,6 @@ static uint set_max_open_files(uint max_file_limit)
   DBUG_RETURN(max_file_limit);
 }
 
-#elif defined (OS2)
-
-static uint set_max_open_files(uint max_file_limit)
-{
-  LONG     cbReqCount;
-  ULONG    cbCurMaxFH0;
-  APIRET   ulrc;
-  DBUG_ENTER("set_max_open_files");
-
-  /* get current limit */
-  cbReqCount = 0;
-  DosSetRelMaxFH( &cbReqCount, &cbCurMaxFH0);
-
-  /* set new limit */
-  if ((cbReqCount = max_file_limit - cbCurMaxFH0) > 0)
-    ulrc = DosSetRelMaxFH( &cbReqCount, &cbCurMaxFH);
-  DBUG_RETURN(cbCurMaxFH0);
-}
-
 #else
 static int set_max_open_files(uint max_file_limit)
 {
diff --git a/mysys/my_getwd.c b/mysys/my_getwd.c
index 5663ceaa60e..765c30bc281 100644
--- a/mysys/my_getwd.c
+++ b/mysys/my_getwd.c
@@ -27,14 +27,6 @@
 #include <dos.h>
 #include <direct.h>
 #endif
-#if defined(OS2)
-#include <direct.h>
-#endif
-
-#ifdef __EMX__
-/* chdir2 support also drive change */
-#define chdir _chdir2
-#endif
 
 	/* Gets current working directory in buff. Directory is allways ended
 	   with FN_LIBCHAR */
@@ -95,14 +87,14 @@ int my_setwd(const char *dir, myf MyFlags)
   int res;
   size_s length;
   my_string start,pos;
-#if defined(VMS) || defined(MSDOS) || defined(OS2)
+#if defined(VMS) || defined(MSDOS)
   char buff[FN_REFLEN];
 #endif
   DBUG_ENTER("my_setwd");
   DBUG_PRINT("my",("dir: '%s'  MyFlags %d", dir, MyFlags));
 
   start=(my_string) dir;
-#if defined(MSDOS) || defined(OS2) /* OS2/MSDOS chdir can't change drive */
+#if defined(MSDOS) /* MSDOS chdir can't change drive */
 #if !defined(_DDL) && !defined(WIN32)
   if ((pos=(char*) strchr(dir,FN_DEVCHAR)) != 0)
   {
@@ -113,13 +105,8 @@ int my_setwd(const char *dir, myf MyFlags)
     drives= (uint) -1;
     if ((pos-(byte*) dir) == 2 && drive > 0 && drive < 32)
     {
-#ifdef OS2
-      _chdrive(drive);
-      drives = _getdrive();
-#else
       _dos_setdrive(drive,&drives);
       _dos_getdrive(&drives);
-#endif
     }
     if (drive != drives)
     {
diff --git a/mysys/my_init.c b/mysys/my_init.c
index 31757cd5df0..7408a320509 100644
--- a/mysys/my_init.c
+++ b/mysys/my_init.c
@@ -87,7 +87,7 @@ my_bool my_init(void)
 #endif
   if (my_thread_global_init())
     return 1;
-#if !defined( __WIN__) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined( __WIN__) && !defined(__NETWARE__)
   sigfillset(&my_signals);		/* signals blocked by mf_brkhant */
 #endif
 #endif /* THREAD */
diff --git a/mysys/my_lib.c b/mysys/my_lib.c
index 522fa56cbf1..6c8da7087d3 100644
--- a/mysys/my_lib.c
+++ b/mysys/my_lib.c
@@ -26,9 +26,7 @@
 # include <dirent.h>
 # define NAMLEN(dirent) strlen((dirent)->d_name)
 #else
-#ifndef OS2
 # define dirent direct
-#endif
 # define NAMLEN(dirent) (dirent)->d_namlen
 # if defined(HAVE_SYS_NDIR_H)
 #  include <sys/ndir.h>
@@ -52,10 +50,6 @@
 #include <descrip.h>
 #endif
 
-#ifdef OS2
-#include "my_os2dirsrch.h"
-#endif
-
 #if defined(THREAD) && defined(HAVE_READDIR_R)
 #define READDIR(A,B,C) ((errno=readdir_r(A,B,&C)) != 0 || !C)
 #else
diff --git a/mysys/my_lock.c b/mysys/my_lock.c
index 8f915d6003a..919727e03d6 100644
--- a/mysys/my_lock.c
+++ b/mysys/my_lock.c
@@ -26,11 +26,6 @@
 #ifdef __WIN__
 #include <sys/locking.h>
 #endif
-#ifdef __EMX__
-#define INCL_BASE
-#define INCL_NOPMAPI
-#include <os2emx.h>
-#endif
 #ifdef __NETWARE__
 #include <nks/fsio.h>
 #endif
@@ -96,11 +91,6 @@ int my_lock(File fd, int locktype, my_off_t start, my_off_t length,
         DBUG_RETURN(0);
     }
   }
-#elif defined(__EMX__) || defined(OS2)
-
-   if (!_lock64( fd, locktype, start, length, MyFlags))
-    DBUG_RETURN(0);
-
 #elif defined(HAVE_LOCKING)
   /* Windows */
   {
diff --git a/mysys/my_mkdir.c b/mysys/my_mkdir.c
index ba1f4c1f2d8..50f304ccce6 100644
--- a/mysys/my_mkdir.c
+++ b/mysys/my_mkdir.c
@@ -27,7 +27,7 @@ int my_mkdir(const char *dir, int Flags, myf MyFlags)
   DBUG_ENTER("my_dir");
   DBUG_PRINT("enter",("dir: %s",dir));
 
-#if  defined(__WIN__) || defined(OS2)
+#if  defined(__WIN__)
   if (mkdir((char*) dir))
 #else
   if (mkdir((char*) dir, Flags & my_umask_dir))
diff --git a/mysys/my_open.c b/mysys/my_open.c
index 6ed3cb5becf..098d410d8ce 100644
--- a/mysys/my_open.c
+++ b/mysys/my_open.c
@@ -19,7 +19,7 @@
 #include "mysys_err.h"
 #include <my_dir.h>
 #include <errno.h>
-#if defined(MSDOS) || defined(__WIN__) || defined(__EMX__) || defined(OS2)
+#if defined(MSDOS) || defined(__WIN__)
 #include <share.h>
 #endif
 
@@ -45,7 +45,7 @@ File my_open(const char *FileName, int Flags, myf MyFlags)
   DBUG_ENTER("my_open");
   DBUG_PRINT("my",("Name: '%s'  Flags: %d  MyFlags: %d",
 		   FileName, Flags, MyFlags));
-#if defined(MSDOS) || defined(__WIN__) || defined(__EMX__) || defined(OS2)
+#if defined(MSDOS) || defined(__WIN__)
   /* 
     Check that we don't try to open or create a file name that may
     cause problems for us in the future (like PRN)
diff --git a/mysys/my_pthread.c b/mysys/my_pthread.c
index 315e966bf43..9a1810b9c1d 100644
--- a/mysys/my_pthread.c
+++ b/mysys/my_pthread.c
@@ -190,7 +190,7 @@ struct tm *gmtime_r(const time_t *clock, struct tm *res)
 ** Author: Gary Wisniewski <garyw@spidereye.com.au>, much modified by Monty
 ****************************************************************************/
 
-#if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(sigwait) && !defined(__WIN__) && !defined(HAVE_rts_threads) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(OS2)
+#if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(sigwait) && !defined(__WIN__) && !defined(HAVE_rts_threads) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS)
 
 #if !defined(DONT_USE_SIGSUSPEND)
 
diff --git a/mysys/my_redel.c b/mysys/my_redel.c
index 9af360424b0..02d3db8b860 100644
--- a/mysys/my_redel.c
+++ b/mysys/my_redel.c
@@ -90,7 +90,7 @@ int my_copystat(const char *from, const char *to, int MyFlags)
     return 1;
   VOID(chmod(to, statbuf.st_mode & 07777));		/* Copy modes */
 
-#if !defined(MSDOS) && !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
+#if !defined(MSDOS) && !defined(__WIN__) && !defined(__NETWARE__)
   if (statbuf.st_nlink > 1 && MyFlags & MY_LINK_WARNING)
   {
     if (MyFlags & MY_LINK_WARNING)
diff --git a/mysys/my_sleep.c b/mysys/my_sleep.c
index 31eaf7eeb96..2ef4c1f8382 100644
--- a/mysys/my_sleep.c
+++ b/mysys/my_sleep.c
@@ -25,8 +25,6 @@ void my_sleep(ulong m_seconds)
   delay(m_seconds/1000+1);
 #elif defined(__WIN__)
   Sleep(m_seconds/1000+1);      /* Sleep() has millisecond arg */
-#elif defined(OS2)
-  DosSleep(m_seconds/1000+1);
 #elif defined(HAVE_SELECT)
   struct timeval t;
   t.tv_sec=  m_seconds / 1000000L;
diff --git a/mysys/my_static.c b/mysys/my_static.c
index 17094548dbd..4f3e2078a5d 100644
--- a/mysys/my_static.c
+++ b/mysys/my_static.c
@@ -19,7 +19,7 @@
   a shared library
 */
 
-#if !defined(stdin) || defined(OS2)
+#if !defined(stdin)
 #include "mysys_priv.h"
 #include "my_static.h"
 #include "my_alarm.h"
diff --git a/mysys/my_thr_init.c b/mysys/my_thr_init.c
index d93f45091c6..7fb7439aa82 100644
--- a/mysys/my_thr_init.c
+++ b/mysys/my_thr_init.c
@@ -94,7 +94,7 @@ my_bool my_thread_global_init(void)
   pthread_mutex_init(&THR_LOCK_heap,MY_MUTEX_INIT_FAST);
   pthread_mutex_init(&THR_LOCK_net,MY_MUTEX_INIT_FAST);
   pthread_mutex_init(&THR_LOCK_charset,MY_MUTEX_INIT_FAST);
-#if defined( __WIN__) || defined(OS2)
+#if defined( __WIN__)
   win_pthread_init();
 #endif
 #if !defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)
@@ -222,14 +222,14 @@ void my_thread_end(void)
     pthread_cond_destroy(&tmp->suspend);
 #endif
     pthread_mutex_destroy(&tmp->mutex);
-#if (!defined(__WIN__) && !defined(OS2)) || defined(USE_TLS)
+#if !defined(__WIN__) || defined(USE_TLS)
     free(tmp);
 #else
     tmp->init= 0;
 #endif
   }
   /* The following free has to be done, even if my_thread_var() is 0 */
-#if (!defined(__WIN__) && !defined(OS2)) || defined(USE_TLS)
+#if !defined(__WIN__) || defined(USE_TLS)
   pthread_setspecific(THR_KEY_mysys,0);
 #endif
 }
diff --git a/mysys/thr_alarm.c b/mysys/thr_alarm.c
index 41914080a9d..dcb41837d96 100644
--- a/mysys/thr_alarm.c
+++ b/mysys/thr_alarm.c
@@ -42,7 +42,7 @@ volatile my_bool alarm_thread_running= 0;
 
 static sig_handler process_alarm_part2(int sig);
 
-#if !defined(__WIN__) && !defined(__EMX__) && !defined(OS2)
+#if !defined(__WIN__)
 
 static pthread_mutex_t LOCK_alarm;
 static pthread_cond_t COND_alarm;
@@ -564,145 +564,6 @@ static void *alarm_handler(void *arg __attribute__((unused)))
 #endif /* USE_ALARM_THREAD */
 
 /*****************************************************************************
-  thr_alarm for OS/2
-*****************************************************************************/
-
-#elif defined(__EMX__) || defined(OS2)
-
-#define INCL_BASE
-#define INCL_NOPMAPI
-#include <os2.h>
-
-static pthread_mutex_t LOCK_alarm;
-static sigset_t full_signal_set;
-static QUEUE alarm_queue;
-pthread_t alarm_thread;
-
-#ifdef USE_ALARM_THREAD
-static pthread_cond_t COND_alarm;
-static void *alarm_handler(void *arg);
-#define reschedule_alarms() pthread_cond_signal(&COND_alarm)
-#else
-#define reschedule_alarms() pthread_kill(alarm_thread,THR_SERVER_ALARM)
-#endif
-
-sig_handler process_alarm(int sig __attribute__((unused)))
-{
-  sigset_t old_mask;
-  ALARM *alarm_data;
-  DBUG_PRINT("info",("sig: %d active alarms: %d",sig,alarm_queue.elements));
-}
-
-
-/*
-  Remove another thread from the alarm
-*/
-
-void thr_alarm_kill(pthread_t thread_id)
-{
-  uint i;
-
-  pthread_mutex_lock(&LOCK_alarm);
-  for (i=0 ; i < alarm_queue.elements ; i++)
-  {
-    if (pthread_equal(((ALARM*) queue_element(&alarm_queue,i))->thread,
-		      thread_id))
-    {
-      ALARM *tmp=(ALARM*) queue_remove(&alarm_queue,i);
-      tmp->expire_time=0;
-      queue_insert(&alarm_queue,(byte*) tmp);
-      reschedule_alarms();
-      break;
-    }
-  }
-  pthread_mutex_unlock(&LOCK_alarm);
-}
-
-bool thr_alarm(thr_alarm_t *alrm, uint sec, ALARM *alarm)
-{
-  APIRET rc;
-  if (alarm_aborted)
-  {
-    alarm->alarmed.crono=0;
-    alarm->alarmed.event=0;
-    return 1;
-  }
-  if (rc = DosCreateEventSem(NULL,(HEV *) &alarm->alarmed.event,
-			     DC_SEM_SHARED,FALSE))
-  {
-    printf("Error creating event semaphore! [%d] \n",rc);
-    alarm->alarmed.crono=0;
-    alarm->alarmed.event=0;
-    return 1;
-  }
-  if (rc = DosAsyncTimer((long) sec*1000L, (HSEM) alarm->alarmed.event,
-			 (HTIMER *) &alarm->alarmed.crono))
-  {
-    printf("Error starting async timer! [%d] \n",rc);
-    DosCloseEventSem((HEV) alarm->alarmed.event);
-    alarm->alarmed.crono=0;
-    alarm->alarmed.event=0;
-    return 1;
-  } /* endif */
-  (*alrm)= &alarm->alarmed;
-  return 1;
-}
-
-
-bool thr_got_alarm(thr_alarm_t *alrm_ptr)
-{
-  thr_alarm_t alrm= *alrm_ptr;
-  APIRET rc;
-
-  if (alrm->crono)
-  {
-    rc = DosWaitEventSem((HEV) alrm->event, SEM_IMMEDIATE_RETURN);
-    if (rc == 0) {
-      DosCloseEventSem((HEV) alrm->event);
-      alrm->crono = 0;
-      alrm->event = 0;
-    } /* endif */
-  }
-  return !alrm->crono || alarm_aborted;
-}
-
-
-void thr_end_alarm(thr_alarm_t *alrm_ptr)
-{
-  thr_alarm_t alrm= *alrm_ptr;
-  if (alrm->crono)
-  {
-    DosStopTimer((HTIMER) alrm->crono);
-    DosCloseEventSem((HEV) alrm->event);
-    alrm->crono = 0;
-    alrm->event = 0;
-  }
-}
-
-void end_thr_alarm(my_bool free_structures)
-{
-  DBUG_ENTER("end_thr_alarm");
-  alarm_aborted=1;				/* No more alarms */
-  DBUG_VOID_RETURN;
-}
-
-void init_thr_alarm(uint max_alarm)
-{
-  DBUG_ENTER("init_thr_alarm");
-  alarm_aborted=0;				/* Yes, Gimmie alarms */
-  DBUG_VOID_RETURN;
-}
-
-void thr_alarm_info(ALARM_INFO *info)
-{
-  bzero((char*) info, sizeof(*info));
-}
-
-void resize_thr_alarm(uint max_alarms)
-{
-}
-
-/*****************************************************************************
   thr_alarm for win95
 *****************************************************************************/
 
@@ -902,10 +763,8 @@ static sig_handler print_signal_warning(int sig)
 #ifdef DONT_REMEMBER_SIGNAL
   my_sigset(sig,print_signal_warning);		/* int. thread system calls */
 #endif
-#ifndef OS2
   if (sig == SIGALRM)
     alarm(2);					/* reschedule alarm */
-#endif
 }
 #endif /* USE_ONE_SIGNAL_HAND */
 
@@ -922,7 +781,6 @@ static void *signal_hand(void *arg __attribute__((unused)))
   VOID(pthread_cond_signal(&COND_thread_count)); /* Tell main we are ready */
   pthread_mutex_unlock(&LOCK_thread_count);
 
-#ifndef OS2
   sigemptyset(&set);				/* Catch all signals */
   sigaddset(&set,SIGINT);
   sigaddset(&set,SIGQUIT);
@@ -939,7 +797,6 @@ static void *signal_hand(void *arg __attribute__((unused)))
 #else
   puts("Starting signal handling thread");
 #endif
-#endif /* OS2 */
   printf("server alarm: %d  thread alarm: %d\n",
 	 THR_SERVER_ALARM,THR_CLIENT_ALARM);
   DBUG_PRINT("info",("Starting signal and alarm handling thread"));
@@ -962,9 +819,7 @@ static void *signal_hand(void *arg __attribute__((unused)))
     case SIGINT:
     case SIGQUIT:
     case SIGTERM:
-#ifndef OS2
     case SIGHUP:
-#endif
       printf("Aborting nicely\n");
       end_thr_alarm(0);
       break;
@@ -974,13 +829,11 @@ static void *signal_hand(void *arg __attribute__((unused)))
       exit(1);
       return 0;					/* Keep some compilers happy */
 #endif
-#ifndef OS2
 #ifdef USE_ONE_SIGNAL_HAND
      case THR_SERVER_ALARM:
        process_alarm(sig);
       break;
 #endif
-#endif /* OS2 */
     }
   }
 }
@@ -1002,7 +855,6 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused)))
   pthread_cond_init(&COND_thread_count,NULL);
 
   /* Start a alarm handling thread */
-#ifndef OS2
   sigemptyset(&set);
   sigaddset(&set,SIGINT);
   sigaddset(&set,SIGQUIT);
@@ -1020,7 +872,6 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused)))
   sigaddset(&set,THR_CLIENT_ALARM);
   VOID(pthread_sigmask(SIG_UNBLOCK, &set, (sigset_t*) 0));
 #endif
-#endif /* OS2 */
 
   pthread_attr_init(&thr_attr);
   pthread_attr_setscope(&thr_attr,PTHREAD_SCOPE_PROCESS);
diff --git a/storage/myisam/myisamchk.c b/storage/myisam/myisamchk.c
index e2c8b446322..46f7558bc6a 100644
--- a/storage/myisam/myisamchk.c
+++ b/storage/myisam/myisamchk.c
@@ -34,10 +34,6 @@ SET_STACK_SIZE(9000)			/* Minimum stack size for program */
 #define my_raid_delete(A,B,C) my_delete(A,B)
 #endif
 
-#ifdef OS2
-#define _sanity(a,b)
-#endif
-
 static uint decode_bits;
 static char **default_argv;
 static const char *load_default_groups[]= { "myisamchk", 0 };
@@ -378,7 +374,7 @@ static void usage(void)
                       directly with '--variable-name=value'.\n\
   -t, --tmpdir=path   Path for temporary files. Multiple paths can be\n\
                       specified, separated by ");
-#if defined( __WIN__) || defined(OS2) || defined(__NETWARE__)
+#if defined( __WIN__) || defined(__NETWARE__)
    printf("semicolon (;)");
 #else
    printf("colon (:)");