diff --git a/src/regex/regcustom.h b/src/regex/regcustom.h
new file mode 100644
index 0000000000..15ea15f495
--- /dev/null
+++ b/src/regex/regcustom.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 1998, 1999 Henry Spencer.	All rights reserved.
+ *
+ * Development of this software was funded, in part, by Cray Research Inc.,
+ * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
+ * Corporation, none of whom are responsible for the results.  The author
+ * thanks all of them.
+ *
+ * Redistribution and use in source and binary forms -- with or without
+ * modification -- are permitted for any purpose, provided that
+ * redistributions in source form retain this entire copyright notice and
+ * indicate the origin and nature of any modifications.
+ *
+ * I'd appreciate being given credit for this package in the documentation
+ * of software which uses it, but that is not a requirement.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id$
+ */
+
+/* headers if any */
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <limits.h>
+#ifndef wxCHECK_GCC_VERSION
+#define wxCHECK_GCC_VERSION( major, minor ) \
+    ( defined(__GNUC__) && defined(__GNUC_MINOR__) \
+    && ( ( __GNUC__ > (major) ) \
+        || ( __GNUC__ == (major) && __GNUC_MINOR__ >= (minor) ) ) )
+#endif
+
+#ifdef wxUSE_NEW_REGEX
+
+    #if !wxUSE_UNICODE
+    #	define wx_wchar char
+    #else // Unicode
+        #if (defined(__GNUC__) && !wxCHECK_GCC_VERSION(2, 96))
+        #		define wx_wchar __WCHAR_TYPE__ 
+        #else // __WCHAR_TYPE__ and gcc < 2.96
+            // standard case
+            #		define wx_wchar wchar_t         
+        #endif // __WCHAR_TYPE__
+    #endif // ASCII/Unicode
+
+#else
+
+    #define wx_wchar char
+
+#endif
+
+
+/* overrides for regguts.h definitions, if any */
+#define FUNCPTR(name, args) (*name) args
+#define MALLOC(n)		malloc(n)
+#define FREE(p)			free(VS(p))
+#define REALLOC(p,n)		realloc(VS(p),n)
+
+/* internal character type and related */
+typedef wx_wchar chr;			/* the type itself */
+typedef unsigned uchr;			/* unsigned type that will hold a chr */
+typedef int celt;				/* type to hold chr, MCCE number, or
+								 * NOCELT */
+
+#define NOCELT	(-1)			/* celt value which is not valid chr or
+								 * MCCE */
+#define CHR(c)	((unsigned char) (c))	/* turn char literal into chr
+										 * literal */
+#define DIGITVAL(c) ((c)-'0')	/* turn chr digit into its value */
+#define CHRBITS 32				/* bits in a chr; must not use sizeof */
+#define CHR_MIN 0x00000000		/* smallest and largest chr; the value */
+#define CHR_MAX 0xfffffffe		/* CHR_MAX-CHR_MIN+1 should fit in uchr */
+
+/* functions operating on chr */
+#define iscalnum(x) wx_isalnum(x)
+#define iscalpha(x) wx_isalpha(x)
+#define iscdigit(x) wx_isdigit(x)
+#define iscspace(x) wx_isspace(x)
+
+/* and pick up the standard header */
+#include "regex.h"