diff --git a/src/auto/configure b/src/auto/configure
index 32731fe..d0bee7b 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -5199,9 +5199,19 @@
 $as_echo_n "checking for mzscheme_base.c... " >&6; }
     if test -f "${SCHEME_COLLECTS}collects/scheme/base.ss" ; then
       MZSCHEME_EXTRA="mzscheme_base.c"
+      MZSCHEME_MZC="${vi_cv_path_mzscheme_pfx}/bin/mzc"
+      MZSCHEME_MOD="++lib scheme/base"
     else
       if test -f "${SCHEME_COLLECTS}collects/scheme/base.rkt" ; then
 	MZSCHEME_EXTRA="mzscheme_base.c"
+	MZSCHEME_MZC="${vi_cv_path_mzscheme_pfx}/bin/mzc"
+	MZSCHEME_MOD="++lib scheme/base"
+      else
+	if test -f "${SCHEME_COLLECTS}collects/racket/base.rkt" ; then
+	  MZSCHEME_EXTRA="mzscheme_base.c"
+	  MZSCHEME_MZC="${vi_cv_path_mzscheme_pfx}/bin/raco ctool"
+	  MZSCHEME_MOD=""
+	fi
       fi
     fi
     if test "X$MZSCHEME_EXTRA" != "X" ; then
@@ -12323,6 +12333,15 @@
 
 
 
+cat >>confdefs.h <<_ACEOF
+#define VIM_SIZEOF_INT $ac_cv_sizeof_int
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define VIM_SIZEOF_LONG $ac_cv_sizeof_long
+_ACEOF
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking uint32_t is 32 bits" >&5
 $as_echo_n "checking uint32_t is 32 bits... " >&6; }
 if test "$cross_compiling" = yes; then :
diff --git a/src/config.h.in b/src/config.h.in
index a4e216b..10f3476 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -37,10 +37,10 @@
 #undef UNIX
 
 /* Defined to the size of an int */
-#undef SIZEOF_INT
+#undef VIM_SIZEOF_INT
 
 /* Defined to the size of a long */
-#undef SIZEOF_LONG
+#undef VIM_SIZEOF_LONG
 
 /* Defined to the size of off_t */
 #undef SIZEOF_OFF_T
diff --git a/src/configure.in b/src/configure.in
index bc8b6eb..cf69350 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -3581,6 +3581,10 @@
 AC_CHECK_SIZEOF([time_t])
 AC_CHECK_SIZEOF([off_t])
 
+dnl Use different names to avoid clashing with other header files.
+AC_DEFINE_UNQUOTED(VIM_SIZEOF_INT, [$ac_cv_sizeof_int])
+AC_DEFINE_UNQUOTED(VIM_SIZEOF_LONG, [$ac_cv_sizeof_long])
+
 dnl Make sure that uint32_t is really 32 bits unsigned.
 AC_MSG_CHECKING([uint32_t is 32 bits])
 AC_TRY_RUN([
diff --git a/src/feature.h b/src/feature.h
index d4b9aea..24c4089 100644
--- a/src/feature.h
+++ b/src/feature.h
@@ -328,7 +328,7 @@
  *
  * Disabled for EBCDIC as it requires multibyte.
  */
-#if defined(FEAT_BIG) && !defined(WIN16) && SIZEOF_INT >= 4 && !defined(EBCDIC)
+#if defined(FEAT_BIG) && !defined(WIN16) && VIM_SIZEOF_INT >= 4 && !defined(EBCDIC)
 # define FEAT_ARABIC
 #endif
 #ifdef FEAT_ARABIC
@@ -640,7 +640,7 @@
  */
 #if (defined(FEAT_NORMAL) || defined(FEAT_GUI_GTK) || defined(FEAT_ARABIC)) \
 	&& !defined(FEAT_MBYTE) && !defined(WIN16) \
-	&& SIZEOF_INT >= 4 && !defined(EBCDIC)
+	&& VIM_SIZEOF_INT >= 4 && !defined(EBCDIC)
 # define FEAT_MBYTE
 #endif
 
@@ -661,7 +661,7 @@
 # define FEAT_MBYTE
 #endif
 
-#if defined(FEAT_MBYTE) && SIZEOF_INT < 4 && !defined(PROTO)
+#if defined(FEAT_MBYTE) && VIM_SIZEOF_INT < 4 && !defined(PROTO)
 	Error: Can only handle multi-byte feature with 32 bit int or larger
 #endif
 
diff --git a/src/fileio.c b/src/fileio.c
index 0c1ff62..6fcabd9 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1185,7 +1185,7 @@
 	 * The amount is limited by the fact that read() only can read
 	 * upto max_unsigned characters (and other things).
 	 */
-#if SIZEOF_INT <= 2
+#if VIM_SIZEOF_INT <= 2
 	if (linerest >= 0x7ff0)
 	{
 	    ++split;
@@ -1197,7 +1197,7 @@
 	{
 	    if (!skip_read)
 	    {
-#if SIZEOF_INT > 2
+#if VIM_SIZEOF_INT > 2
 # if defined(SSIZE_MAX) && (SSIZE_MAX < 0x10000L)
 		size = SSIZE_MAX;		    /* use max I/O size, 52K */
 # else
diff --git a/src/if_python.c b/src/if_python.c
index 02dc8ed..34a75a6 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -613,7 +613,7 @@
 #  endif
 # endif
 # if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x02050000 \
-	&& SIZEOF_SIZE_T != SIZEOF_INT
+	&& SIZEOF_SIZE_T != VIM_SIZEOF_INT
 #  ifdef Py_DEBUG
     {"Py_InitModule4TraceRefs_64", (PYTHON_PROC*)&dll_Py_InitModule4},
 #  else
diff --git a/src/if_ruby.c b/src/if_ruby.c
index 9343ec8..0fa774b 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -89,9 +89,9 @@
 #endif
 
 #if defined(DYNAMIC_RUBY_VER) && DYNAMIC_RUBY_VER >= 20 \
-	&& SIZEOF_INT < SIZEOF_LONG
+	&& VIM_SIZEOF_INT < VIM_SIZEOF_LONG
 /* Ruby 2.0 defines a number of static functions which use rb_fix2int and
- * rb_num2int if SIZEOF_INT < SIZEOF_LONG (64bit) */
+ * rb_num2int if VIM_SIZEOF_INT < VIM_SIZEOF_LONG (64bit) */
 # define rb_fix2int rb_fix2int_stub
 # define rb_num2int rb_num2int_stub
 #endif
@@ -202,7 +202,7 @@
 # define rb_hash_new			dll_rb_hash_new
 # define rb_inspect			dll_rb_inspect
 # define rb_int2inum			dll_rb_int2inum
-# if SIZEOF_INT < SIZEOF_LONG /* 64 bits only */
+# if VIM_SIZEOF_INT < VIM_SIZEOF_LONG /* 64 bits only */
 #  define rb_fix2int			dll_rb_fix2int
 #  define rb_num2int			dll_rb_num2int
 #  define rb_num2uint			dll_rb_num2uint
@@ -310,7 +310,7 @@
 static VALUE (*dll_rb_hash_new) (void);
 static VALUE (*dll_rb_inspect) (VALUE);
 static VALUE (*dll_rb_int2inum) (long);
-# if SIZEOF_INT < SIZEOF_LONG /* 64 bits only */
+# if VIM_SIZEOF_INT < VIM_SIZEOF_LONG /* 64 bits only */
 static long (*dll_rb_fix2int) (VALUE);
 static long (*dll_rb_num2int) (VALUE);
 static unsigned long (*dll_rb_num2uint) (VALUE);
@@ -393,7 +393,7 @@
     return dll_rb_int2big(x);
 }
 #  if defined(DYNAMIC_RUBY_VER) && DYNAMIC_RUBY_VER >= 20 \
-	&& SIZEOF_INT < SIZEOF_LONG
+	&& VIM_SIZEOF_INT < VIM_SIZEOF_LONG
 long rb_fix2int_stub(VALUE x)
 {
     return dll_rb_fix2int(x);
@@ -466,7 +466,7 @@
     {"rb_hash_new", (RUBY_PROC*)&dll_rb_hash_new},
     {"rb_inspect", (RUBY_PROC*)&dll_rb_inspect},
     {"rb_int2inum", (RUBY_PROC*)&dll_rb_int2inum},
-# if SIZEOF_INT < SIZEOF_LONG /* 64 bits only */
+# if VIM_SIZEOF_INT < VIM_SIZEOF_LONG /* 64 bits only */
     {"rb_fix2int", (RUBY_PROC*)&dll_rb_fix2int},
     {"rb_num2int", (RUBY_PROC*)&dll_rb_num2int},
     {"rb_num2uint", (RUBY_PROC*)&dll_rb_num2uint},
diff --git a/src/message.c b/src/message.c
index 0bbd87f..8508f6d 100644
--- a/src/message.c
+++ b/src/message.c
@@ -4376,7 +4376,7 @@
 		    {
 			/* Don't put the #if inside memchr(), it can be a
 			 * macro. */
-#if SIZEOF_INT <= 2
+#if VIM_SIZEOF_INT <= 2
 			char *q = memchr(str_arg, '\0', precision);
 #else
 			/* memchr on HP does not like n > 2^31  !!! */
diff --git a/src/os_os2_cfg.h b/src/os_os2_cfg.h
index 039d395..eef8bf5 100644
--- a/src/os_os2_cfg.h
+++ b/src/os_os2_cfg.h
@@ -47,7 +47,7 @@
 #undef UNIX	/* define always by current configure script */
 
 /* Defined to the size of an int */
-#define SIZEOF_INT 4
+#define VIM_SIZEOF_INT 4
 
 /*
  * If we cannot trust one of the following from the libraries, we use our
diff --git a/src/os_vms_conf.h b/src/os_vms_conf.h
index ade1ea3..4058e4a 100644
--- a/src/os_vms_conf.h
+++ b/src/os_vms_conf.h
@@ -23,7 +23,7 @@
 #define HAVE_DATE_TIME
 
 /* Defined to the size of an int */
-#define SIZEOF_INT 4
+#define VIM_SIZEOF_INT 4
 
 /* #undef USEBCOPY */
 #define USEMEMMOVE
diff --git a/src/os_win16.h b/src/os_win16.h
index c5a89c8..4c26772 100644
--- a/src/os_win16.h
+++ b/src/os_win16.h
@@ -55,8 +55,8 @@
 
 #define FNAME_ILLEGAL "\"*?><|" /* illegal characters in a file name */
 
-#ifndef SIZEOF_INT
-# define SIZEOF_INT 2
+#ifndef VIM_SIZEOF_INT
+# define VIM_SIZEOF_INT 2
 #endif
 
 typedef long off_t;
diff --git a/src/spell.c b/src/spell.c
index 66ccecb..fd7e4e1 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -317,7 +317,7 @@
 
 /* Type used for indexes in the word tree need to be at least 4 bytes.  If int
  * is 8 bytes we could use something smaller, but what? */
-#if SIZEOF_INT > 3
+#if VIM_SIZEOF_INT > 3
 typedef int idx_T;
 #else
 typedef long idx_T;
diff --git a/src/structs.h b/src/structs.h
index 5de3a68..97601af 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -364,7 +364,7 @@
 /*
  * structures used in undo.c
  */
-#if SIZEOF_INT > 2
+#if VIM_SIZEOF_INT > 2
 # define ALIGN_LONG	/* longword alignment and use filler byte */
 # define ALIGN_SIZE (sizeof(long))
 #else
@@ -1094,7 +1094,7 @@
 typedef long_u hash_T;		/* Type for hi_hash */
 
 
-#if SIZEOF_INT <= 3		/* use long if int is smaller than 32 bits */
+#if VIM_SIZEOF_INT <= 3		/* use long if int is smaller than 32 bits */
 typedef long	varnumber_T;
 #else
 typedef int	varnumber_T;
diff --git a/src/version.c b/src/version.c
index dccd84b..09ee63b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    188,
+/**/
     187,
 /**/
     186,
diff --git a/src/vim.h b/src/vim.h
index 3969842..ab73531 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -43,7 +43,7 @@
  * it becomes zero.  This is likely a problem of not being able to run the
  * test program.  Other items from configure may also be wrong then!
  */
-# if (SIZEOF_INT == 0)
+# if (VIM_SIZEOF_INT == 0)
     Error: configure did not run properly.  Check auto/config.log.
 # endif
 
@@ -148,22 +148,22 @@
 #endif
 
 /*
- * SIZEOF_INT is used in feature.h, and the system-specific included files
- * need items from feature.h.  Therefore define SIZEOF_INT here.
+ * VIM_SIZEOF_INT is used in feature.h, and the system-specific included files
+ * need items from feature.h.  Therefore define VIM_SIZEOF_INT here.
  */
 #ifdef WIN3264
-# define SIZEOF_INT 4
+# define VIM_SIZEOF_INT 4
 #endif
 #ifdef MSDOS
 # ifdef DJGPP
 #  ifndef FEAT_GUI_GTK		/* avoid problems when generating prototypes */
-#   define SIZEOF_INT 4		/* 32 bit ints */
+#   define VIM_SIZEOF_INT 4	/* 32 bit ints */
 #  endif
 #  define DOS32
 #  define FEAT_CLIPBOARD
 # else
 #  ifndef FEAT_GUI_GTK		/* avoid problems when generating prototypes */
-#   define SIZEOF_INT 2		/* 16 bit ints */
+#   define VIM_SIZEOF_INT 2	/* 16 bit ints */
 #  endif
 #  define SMALL_MALLOC		/* 16 bit storage allocation */
 #  define DOS16
@@ -174,18 +174,18 @@
   /* Be conservative about sizeof(int). It could be 4 too. */
 # ifndef FEAT_GUI_GTK	/* avoid problems when generating prototypes */
 #  ifdef __GNUC__
-#   define SIZEOF_INT	4
+#   define VIM_SIZEOF_INT	4
 #  else
-#   define SIZEOF_INT	2
+#   define VIM_SIZEOF_INT	2
 #  endif
 # endif
 #endif
 #ifdef MACOS
 # if defined(__POWERPC__) || defined(MACOS_X) || defined(__fourbyteints__) \
   || defined(__MRC__) || defined(__SC__) || defined(__APPLE_CC__)/* MPW Compilers */
-#  define SIZEOF_INT 4
+#  define VIM_SIZEOF_INT 4
 # else
-#  define SIZEOF_INT 2
+#  define VIM_SIZEOF_INT 2
 # endif
 #endif
 
@@ -417,12 +417,12 @@
 #define PRINTF_DECIMAL_LONG_U SCANF_DECIMAL_LONG_U
 
 /*
- * Only systems which use configure will have SIZEOF_OFF_T and SIZEOF_LONG
+ * Only systems which use configure will have SIZEOF_OFF_T and VIM_SIZEOF_LONG
  * defined, which is ok since those are the same systems which can have
  * varying sizes for off_t.  The other systems will continue to use "%ld" to
  * print off_t since off_t is simply a typedef to long for them.
  */
-#if defined(SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG)
+#if defined(SIZEOF_OFF_T) && (SIZEOF_OFF_T > VIM_SIZEOF_LONG)
 # define LONG_LONG_OFF_T
 #endif
 
@@ -448,7 +448,7 @@
 # ifdef UNICODE16
 typedef unsigned short u8char_T;    /* short should be 16 bits */
 # else
-#  if SIZEOF_INT >= 4
+#  if VIM_SIZEOF_INT >= 4
 typedef unsigned int u8char_T;	    /* int is 32 bits */
 #  else
 typedef unsigned long u8char_T;	    /* long should be 32 bits or more */
@@ -1608,7 +1608,7 @@
  * With this we restrict the maximum line length to 1073741823. I guess this is
  * not a real problem. BTW:  Longer lines are split.
  */
-#if SIZEOF_INT >= 4
+#if VIM_SIZEOF_INT >= 4
 # ifdef __MVS__
 #  define MAXCOL (0x3fffffffL)		/* maximum column number, 30 bits */
 # else