diff --git a/src/os_os2_cfg.h b/src/os_os2_cfg.h
new file mode 100644
index 0000000..ce3b4bb
--- /dev/null
+++ b/src/os_os2_cfg.h
@@ -0,0 +1,251 @@
+/* os_os2_cfg.h */
+/* vi:set ts=8 sts=4 sw=4: */
+
+#define CASE_INSENSITIVE_FILENAME   /* ignore case when comparing file names */
+#define SPACE_IN_FILENAME
+#define BACKSLASH_IN_FILENAME
+#define BINARY_FILE_IO
+#define USE_CRNL		/* lines end in CR-NL instead of NL */
+#define NO_EXPANDPATH		/* always call mch_expand_wildcards */
+#define USE_EXE_NAME		/* use argv[0] for $VIM */
+#define USE_TERM_CONSOLE
+#define HAVE_DUP		/* have dup() */
+
+#define FNAME_ILLEGAL "\"*?><|" /* illegal characters in a file name */
+
+/*
+ * The rest is manually generated from configure.in by Paul Slootman.
+ */
+
+/* Define unless no X support found */
+#undef HAVE_X11
+
+/* Define when terminfo support found */
+#undef TERMINFO
+
+/* Define when termcap.h contains ospeed */
+#define HAVE_OSPEED	1
+
+#define HAVE_STRICMP
+#define HAVE_STRNICMP
+
+/* Define when ospeed can be extern */
+#define OSPEED_EXTERN
+
+/* Define when termcap.h contains UP, BC and PC */
+#define HAVE_UP_BC_PC	1
+
+/* Define when UP, BC and PC can be extern */
+#define UP_BC_PC_EXTERN
+
+/* Define when termcap.h defines outfuntype */
+#undef HAVE_OUTFUNTYPE
+
+/* Define when __DATE__ " " __TIME__ can be used */
+#define HAVE_DATE_TIME	1
+
+#undef UNIX	/* define always by current configure script */
+
+/* Defined to the size of an int */
+#define SIZEOF_INT 4
+
+/*
+ * If we cannot trust one of the following from the libraries, we use our
+ * own safe but probably slower mch_memmove().
+ */
+#define USEBCOPY	1
+#undef USEMEMMOVE
+#undef USEMEMCPY
+
+/* Define to empty if the keyword does not work.  */
+#undef const
+
+/* Define to `int' if <sys/types.h> doesn't define.  */
+#undef mode_t
+
+/* Define to `long' if <sys/types.h> doesn't define.  */
+#undef off_t
+
+/* Define to `long' if <sys/types.h> doesn't define.  */
+#undef pid_t
+
+/* Define to `unsigned' if <sys/types.h> doesn't define.  */
+#undef size_t
+
+/* Define to `int' if <sys/types.h> doesn't define.  */
+#undef uid_t
+
+/* Define to `int' if <sys/types.h> doesn't define.  */
+#undef gid_t
+
+/* Define if you can safely include both <sys/time.h> and <time.h>.  */
+#define TIME_WITH_SYS_TIME	1
+
+/* Define if you can safely include both <sys/time.h> and <sys/select.h>.  */
+#define SYS_SELECT_WITH_SYS_TIME	1
+
+/* Define as the return type of signal handlers (int or void).	*/
+#define RETSIGTYPE void
+
+/* Define as the command at the end of signal handlers ("" or "return 0;").  */
+#define SIGRETURN
+
+/* Define if touuper/tolower only work on lower/upercase characters */
+#undef BROKEN_TOUPPER
+
+/* Define if tgetstr() has a second argument that is (char *) */
+#undef TGETSTR_CHAR_P
+
+/* Define if you have the sigset() function.  */
+#undef HAVE_SIGSET
+
+/* Define if the getcwd() function should not be used.	*/
+#undef BAD_GETCWD
+
+/* Define if you have the getcwd() function.  */
+#define HAVE_GETCWD	1
+
+/* Define if you have the getwd() function.  */
+#define HAVE_GETWD	1
+
+/* Define if you have the select() function.  */
+#define HAVE_SELECT	1
+
+/* Define if you have the strcspn() function.  */
+#define HAVE_STRCSPN	1
+
+/* Define if you have the strtol() function.  */
+#define HAVE_STRTOL	1
+
+/* Define if you have the tgetent() function.  */
+#define HAVE_TGETENT	1
+
+#define HAVE_STRFTIME	    /* guessed */
+
+/* Define if you have the memset() function.  */
+#define HAVE_MEMSET	1
+
+/* Define if you have the strerror() function.	*/
+#define HAVE_STRERROR	1
+
+/* Define if you have the strcasecmp() function. */
+#undef HAVE_STRCASECMP
+
+/* Define if you have the fchown() function.  */
+#undef HAVE_FCHOWN
+
+/* Define if you have the rename() function. */
+#define HAVE_RENAME	1
+
+/* Define if you have the fsync() function. */
+#undef HAVE_FSYNC   /* exists, but apparently Bad Things happen when used */
+
+/* Define if you have the fchdir() function. */
+#undef HAVE_FCHDIR
+
+/* Define if you have the setenv() function. */
+#undef HAVE_SETENV
+
+/* Define if you have the putenv() function. */
+#define HAVE_PUTENV	1
+
+/* Define if you have the gettimeofday() function. */
+#undef HAVE_GETTIMEOFDAY
+
+/* Define if you have the getpwuid() function. */
+#undef HAVE_GETPWUID
+
+/* Define if you have the getpwnam() function. */
+#undef HAVE_GETPWNAM
+
+/* Define if you have the qsort() function. */
+#define HAVE_QSORT  1
+
+/* Define if you have the <dirent.h> header file.  */
+#define HAVE_DIRENT_H	1
+
+/* Define if you have the <sys/ndir.h> header file.  */
+#undef HAVE_SYS_NDIR_H
+
+/* Define if you have the <sys/dir.h> header file.  */
+#undef HAVE_SYS_DIR_H
+
+/* Define if you have the <ndir.h> header file.  */
+#undef HAVE_NDIR_H
+
+/* Define if you have <sys/wait.h> that is POSIX.1 compatible.	*/
+#define HAVE_SYS_WAIT_H 1
+
+/* Define if you have a <sys/wait.h> that is not POSIX.1 compatible. */
+#undef HAVE_UNION_WAIT
+
+/* This is currently unused in vim: */
+/* Define if you have the ANSI C header files. */
+/* #undef STDC_HEADERS */
+
+/* instead, we check a few STDC things ourselves */
+#define HAVE_STDLIB_H	1
+#undef HAVE_STRING_H	/* On EMX it is better to use strings.h */
+
+/* Define if you have the <sys/select.h> header file.  */
+#undef HAVE_SYS_SELECT_H
+
+/* Define if you have the <sys/utsname.h> header file.	*/
+#define HAVE_SYS_UTSNAME_H	1
+
+/* Define if you have the <termcap.h> header file.  */
+#define HAVE_TERMCAP_H	1
+
+/* Define if you have the <fcntl.h> header file.  */
+#define HAVE_FCNTL_H	1
+
+/* Define if you have the <sgtty.h> header file.  */
+#define HAVE_SGTTY_H	1
+
+/* Define if you have the <sys/ioctl.h> header file.  */
+#define HAVE_SYS_IOCTL_H	1
+
+/* Define if you have the <sys/time.h> header file.  */
+#define HAVE_SYS_TIME_H
+
+/* Define if you have the <termio.h> header file.  */
+#undef HAVE_TERMIO_H
+
+/* Define if you have the <unistd.h> header file.  */
+#define HAVE_UNISTD_H	1
+
+/* Define if you have the <stropts.h> header file. */
+#undef HAVE_STROPTS_H
+
+/* Define if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H	1
+
+/* Define if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H	1
+
+/* Define if you have the <sys/systeminfo.h> header file. */
+#undef HAVE_SYS_SYSTEMINFO_H
+
+/* Define if you have the <locale.h> header file. */
+#define HAVE_LOCALE_H	1
+
+/* Define if you have the <sys/stream.h> header file. */
+#undef HAVE_SYS_STREAM_H
+
+/* Define if you have the <sys/ptem.h> header file. */
+#undef HAVE_SYS_PTEM_H
+
+/* Define if you have the <termios.h> header file. */
+#define HAVE_TERMIOS_H	1
+
+/* Define if you have the <libc.h> header file. */
+#undef HAVE_LIBC_H
+
+/* Define if you have the <sys/statfs.h> header file. */
+#undef HAVE_SYS_STATFS_H
+
+/* Define if you have the <sys/poll.h> header file. */
+#undef HAVE_SYS_POLL_H
+
+/* Define if you have the <pwd.h> header file. */
+#undef HAVE_PWD_H