Many files:

  Prefix regex functions/types with "my_" as our
  library is not compatible with normal regex lib.
my_regex.h:
  Rename: regex/regex.h -> regex/my_regex.h

client/mysqltest.c

@@ -59,7 +59,7 @@
 #include <stdarg.h>
 #include <sys/stat.h>
 #include <violite.h>
-#include <regex.h>                        /* Our own version of lib */
+#include "my_regex.h"                     /* Our own version of lib */
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>
 #endif
@@ -188,7 +188,7 @@ static int got_end_timer= FALSE;
 static void timer_output(void);
 static ulonglong timer_now(void);
 
-static regex_t ps_re; /* Holds precompiled re for valid PS statements */
+static my_regex_t ps_re; /* Holds precompiled re for valid PS statements */
 static void ps_init_re(void);
 static int ps_match_re(char *);
 static char *ps_eprint(int);
@@ -3585,12 +3585,13 @@ static void ps_init_re(void)
     "[[:space:]]*UPDATE[[:space:]]+MULTI[[:space:]]|"
     "[[:space:]]*INSERT[[:space:]]+SELECT[[:space:]])";
 
-  int err= regcomp(&ps_re, ps_re_str, (REG_EXTENDED | REG_ICASE | REG_NOSUB),
-                   &my_charset_latin1);
+  int err= my_regcomp(&ps_re, ps_re_str,
+                      (REG_EXTENDED | REG_ICASE | REG_NOSUB),
+                      &my_charset_latin1);
   if (err)
   {
     char erbuf[100];
-    int len= regerror(err, &ps_re, erbuf, sizeof(erbuf));
+    int len= my_regerror(err, &ps_re, erbuf, sizeof(erbuf));
     fprintf(stderr, "error %s, %d/%d `%s'\n",
             ps_eprint(err), len, (int)sizeof(erbuf), erbuf);
     exit(1);
@@ -3600,7 +3601,7 @@ static void ps_init_re(void)
 
 static int ps_match_re(char *stmt_str)
 {
-  int err= regexec(&ps_re, stmt_str, (size_t)0, NULL, 0);
+  int err= my_regexec(&ps_re, stmt_str, (size_t)0, NULL, 0);
 
   if (err == 0)
     return 1;
@@ -3609,7 +3610,7 @@ static int ps_match_re(char *stmt_str)
   else
   {
     char erbuf[100];
-    int len= regerror(err, &ps_re, erbuf, sizeof(erbuf));
+    int len= my_regerror(err, &ps_re, erbuf, sizeof(erbuf));
     fprintf(stderr, "error %s, %d/%d `%s'\n",
             ps_eprint(err), len, (int)sizeof(erbuf), erbuf);
     exit(1);
@@ -3619,7 +3620,7 @@ static int ps_match_re(char *stmt_str)
 static char *ps_eprint(int err)
 {
   static char epbuf[100];
-  size_t len= regerror(REG_ITOA|err, (regex_t *)NULL, epbuf, sizeof(epbuf));
+  size_t len= my_regerror(REG_ITOA|err, (my_regex_t *)NULL, epbuf, sizeof(epbuf));
   assert(len <= sizeof(epbuf));
   return(epbuf);
 }
@@ -3627,7 +3628,7 @@ static char *ps_eprint(int err)
 
 static void ps_free_reg(void)
 {
-  regfree(&ps_re);
+  my_regfree(&ps_re);
 }
 
 /****************************************************************************/

os2/MySQL-Source.icc

@@ -12,7 +12,7 @@ group client_global_pch =
             'm_ctype.h', 'mysqld_error.h',
             'my_list.h', 'my_sys.h', 'my_net.h',
             'myisam.h', 'myisampack.h', '.\myisam\myisamdef.h',
-            '.\regex\regex.h'
+            '.\regex\my_regex.h'
 
 group server_global_pch =
             'os2.h',
@@ -38,7 +38,7 @@ group server_global_pch =
             'my_tree.h', '..\mysys\my_static.h', 'netdb.h',
             'thr_alarm.h', 'heap.h', '..\myisam\fulltext.h',
             '..\myisam\ftdefs.h', 'myisammrg.h',
-            '.\regex\regex.h'
+            '.\regex\my_regex.h'
 
 group server_pch =
             'ha_heap.h', 'ha_myisammrg.h', 'opt_ft.h',

regex/Makefile.am

@@ -19,7 +19,7 @@ INCLUDES =		@MT_INCLUDES@ \
 			-I$(top_builddir)/include -I$(top_srcdir)/include
 noinst_LIBRARIES =	libregex.a
 LDADD=			libregex.a $(top_builddir)/strings/libmystrings.a
-noinst_HEADERS =	cclass.h cname.h regex2.h utils.h engine.c regex.h
+noinst_HEADERS =	cclass.h cname.h regex2.h utils.h engine.c my_regex.h
 libregex_a_SOURCES =	regerror.c regcomp.c regexec.c regfree.c reginit.c
 noinst_PROGRAMS =	re
 re_SOURCES =		split.c debug.c main.c

regex/debug.c

@@ -2,7 +2,8 @@
 #include <m_ctype.h>
 #include <m_string.h>
 #include <sys/types.h>
-#include <regex.h>
+
+#include "my_regex.h"
 #include "utils.h"
 #include "regex2.h"
 #include "debug.ih"
@@ -15,7 +16,7 @@
  */
 void
 regprint(r, d)
-regex_t *r;
+my_regex_t *r;
 FILE *d;
 {
 	register struct re_guts *g = r->re_g;

regex/debug.ih

@@ -4,7 +4,7 @@ extern "C" {
 #endif
 
 /* === debug.c === */
-void regprint(regex_t *r, FILE *d);
+void regprint(my_regex_t *r, FILE *d);
 static void s_print(CHARSET_INFO *charset, register struct re_guts *g, FILE *d);
 static char *regchar(CHARSET_INFO *charset, int ch,char *buf);
 

regex/engine.c

@@ -32,7 +32,7 @@
 struct match {
 	struct re_guts *g;
 	int eflags;
-	regmatch_t *pmatch;	/* [nsub+1] (0 element unused) */
+	my_regmatch_t *pmatch;	/* [nsub+1] (0 element unused) */
 	char *offp;		/* offsets work from here */
 	char *beginp;		/* start of string -- virtual NUL precedes */
 	char *endp;		/* end of string -- virtual NUL here */
@@ -68,7 +68,7 @@ CHARSET_INFO *charset;
 register struct re_guts *g;
 char *str;
 size_t nmatch;
-regmatch_t pmatch[];
+my_regmatch_t pmatch[];
 int eflags;
 {
 	register char *endp;
@@ -148,8 +148,8 @@ int eflags;
 
 		/* oh my, he wants the subexpressions... */
 		if (m->pmatch == NULL)
-			m->pmatch = (regmatch_t *)malloc((m->g->nsub + 1) *
-							sizeof(regmatch_t));
+			m->pmatch = (my_regmatch_t *)malloc((m->g->nsub + 1) *
+							sizeof(my_regmatch_t));
 		if (m->pmatch == NULL) {
 		  	if (m->lastpos != NULL)
 		    	free((char *)m->lastpos);

regex/engine.ih

@@ -4,7 +4,7 @@ extern "C" {
 #endif
 
 /* === engine.c === */
-static int matcher(CHARSET_INFO *charset,register struct re_guts *g, char *string, size_t nmatch, regmatch_t pmatch[], int eflags);
+static int matcher(CHARSET_INFO *charset,register struct re_guts *g, char *string, size_t nmatch, my_regmatch_t pmatch[], int eflags);
 static char *dissect(CHARSET_INFO *charset,register struct match *m, char *start, char *stop, sopno startst, sopno stopst);
 static char *backref(CHARSET_INFO *charset, register struct match *m, char *start, char *stop, sopno startst, sopno stopst, sopno lev);
 static char *fast(CHARSET_INFO *charset, register struct match *m, char *start, char *stop, sopno startst, sopno stopst);

regex/main.c

 #include <my_global.h>
 #include <m_string.h>
 #include <sys/types.h>
-#include <regex.h>
 #include <assert.h>
 
+#include "my_regex.h"
 #include "main.ih"
 
 char *progname;
@@ -27,9 +27,9 @@ int main(argc, argv)
 int argc;
 char *argv[];
 {
-	regex_t re;
+	my_regex_t re;
 #	define	NS	10
-	regmatch_t subs[NS];
+	my_regmatch_t subs[NS];
 	char erbuf[100];
 	int err;
 	size_t len;
@@ -74,9 +74,9 @@ char *argv[];
 		exit(status);
 	}
 
-	err = regcomp(&re, argv[optind++], copts, &my_charset_latin1);
+	err = my_regcomp(&re, argv[optind++], copts, &my_charset_latin1);
 	if (err) {
-		len = regerror(err, &re, erbuf, sizeof(erbuf));
+		len = my_regerror(err, &re, erbuf, sizeof(erbuf));
 		fprintf(stderr, "error %s, %d/%d `%s'\n",
 			eprint(err), len, (int) sizeof(erbuf), erbuf);
 		exit(status);
@@ -84,7 +84,7 @@ char *argv[];
 	regprint(&re, stdout);
 
 	if (optind >= argc) {
-		regfree(&re);
+		my_regfree(&re);
 		exit(status);
 	}
 
@@ -92,9 +92,9 @@ char *argv[];
 		subs[0].rm_so = startoff;
 		subs[0].rm_eo = strlen(argv[optind]) - endoff;
 	}
-	err = regexec(&re, argv[optind], (size_t)NS, subs, eopts);
+	err = my_regexec(&re, argv[optind], (size_t)NS, subs, eopts);
 	if (err) {
-		len = regerror(err, &re, erbuf, sizeof(erbuf));
+		len = my_regerror(err, &re, erbuf, sizeof(erbuf));
 		fprintf(stderr, "error %s, %d/%d `%s'\n",
 			eprint(err), (int) len, (int) sizeof(erbuf), erbuf);
 		exit(status);
@@ -136,7 +136,7 @@ FILE *in;
 	const char *badpat = "invalid regular expression";
 #	define	SHORT	10
 	const char *bpname = "REG_BADPAT";
-	regex_t re;
+	my_regex_t re;
 
 	while (fgets(inbuf, sizeof(inbuf), in) != NULL) {
 		line++;
@@ -163,27 +163,27 @@ FILE *in;
 					options('c', f[1]) &~ REG_EXTENDED);
 	}
 
-	ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
+	ne = my_regerror(REG_BADPAT, (my_regex_t *)NULL, erbuf, sizeof(erbuf));
 	if (strcmp(erbuf, badpat) != 0 || ne != strlen(badpat)+1) {
 		fprintf(stderr, "end: regerror() test gave `%s' not `%s'\n",
 							erbuf, badpat);
 		status = 1;
 	}
-	ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, (size_t)SHORT);
+	ne = my_regerror(REG_BADPAT, (my_regex_t *)NULL, erbuf, (size_t)SHORT);
 	if (strncmp(erbuf, badpat, SHORT-1) != 0 || erbuf[SHORT-1] != '\0' ||
 						ne != strlen(badpat)+1) {
 		fprintf(stderr, "end: regerror() short test gave `%s' not `%.*s'\n",
 						erbuf, SHORT-1, badpat);
 		status = 1;
 	}
-	ne = regerror(REG_ITOA|REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
+	ne = my_regerror(REG_ITOA|REG_BADPAT, (my_regex_t *)NULL, erbuf, sizeof(erbuf));
 	if (strcmp(erbuf, bpname) != 0 || ne != strlen(bpname)+1) {
 		fprintf(stderr, "end: regerror() ITOA test gave `%s' not `%s'\n",
 						erbuf, bpname);
 		status = 1;
 	}
 	re.re_endp = bpname;
-	ne = regerror(REG_ATOI, &re, erbuf, sizeof(erbuf));
+	ne = my_regerror(REG_ATOI, &re, erbuf, sizeof(erbuf));
 	if (atoi(erbuf) != (int)REG_BADPAT) {
 		fprintf(stderr, "end: regerror() ATOI test gave `%s' not `%ld'\n",
 						erbuf, (long)REG_BADPAT);
@@ -208,9 +208,9 @@ char *f3;
 char *f4;
 int opts;			/* may not match f1 */
 {
-	regex_t re;
+	my_regex_t re;
 #	define	NSUBS	10
-	regmatch_t subs[NSUBS];
+	my_regmatch_t subs[NSUBS];
 #	define	NSHOULD	15
 	char *should[NSHOULD];
 	int nshould;
@@ -226,10 +226,10 @@ int opts;			/* may not match f1 */
 	strcpy(f0copy, f0);
 	re.re_endp = (opts&REG_PEND) ? f0copy + strlen(f0copy) : NULL;
 	fixstr(f0copy);
-	err = regcomp(&re, f0copy, opts, &my_charset_latin1);
+	err = my_regcomp(&re, f0copy, opts, &my_charset_latin1);
 	if (err != 0 && (!opt('C', f1) || err != efind(f2))) {
 		/* unexpected error or wrong error */
-		len = regerror(err, &re, erbuf, sizeof(erbuf));
+		len = my_regerror(err, &re, erbuf, sizeof(erbuf));
 		fprintf(stderr, "%d: %s error %s, %d/%d `%s'\n",
 					line, type, eprint(err), len,
 					(int) sizeof(erbuf), erbuf);
@@ -243,7 +243,7 @@ int opts;			/* may not match f1 */
 	}
 
 	if (err != 0) {
-		regfree(&re);
+		my_regfree(&re);
 		return;
 	}
 
@@ -256,11 +256,11 @@ int opts;			/* may not match f1 */
 		subs[0].rm_so = strchr(f2, '(') - f2 + 1;
 		subs[0].rm_eo = strchr(f2, ')') - f2;
 	}
-	err = regexec(&re, f2copy, NSUBS, subs, options('e', f1));
+	err = my_regexec(&re, f2copy, NSUBS, subs, options('e', f1));
 
 	if (err != 0 && (f3 != NULL || err != REG_NOMATCH)) {
 		/* unexpected error or wrong error */
-		len = regerror(err, &re, erbuf, sizeof(erbuf));
+		len = my_regerror(err, &re, erbuf, sizeof(erbuf));
 		fprintf(stderr, "%d: %s exec error %s, %d/%d `%s'\n",
 					line, type, eprint(err), len,
 					(int) sizeof(erbuf), erbuf);
@@ -282,7 +282,7 @@ int opts;			/* may not match f1 */
 	}
 
 	if (err != 0 || f4 == NULL) {
-		regfree(&re);
+		my_regfree(&re);
 		return;
 	}
 
@@ -303,7 +303,7 @@ int opts;			/* may not match f1 */
 		}
 	}
 
-	regfree(&re);
+	my_regfree(&re);
 }
 
 /*
@@ -404,7 +404,7 @@ register char *p;
 char *				/* NULL or complaint */
 check(str, sub, should)
 char *str;
-regmatch_t sub;
+my_regmatch_t sub;
 char *should;
 {
 	register int len;
@@ -485,7 +485,7 @@ int err;
 	static char epbuf[100];
 	size_t len;
 
-	len = regerror(REG_ITOA|err, (regex_t *)NULL, epbuf, sizeof(epbuf));
+	len = my_regerror(REG_ITOA|err, (my_regex_t *)NULL, epbuf, sizeof(epbuf));
 	assert(len <= sizeof(epbuf));
 	return(epbuf);
 }
@@ -499,11 +499,11 @@ efind(name)
 char *name;
 {
 	static char efbuf[100];
-	regex_t re;
+	my_regex_t re;
 
 	sprintf(efbuf, "REG_%s", name);
 	assert(strlen(efbuf) < sizeof(efbuf));
 	re.re_endp = efbuf;
-	(void) regerror(REG_ATOI, &re, efbuf, sizeof(efbuf));
+	(void) my_regerror(REG_ATOI, &re, efbuf, sizeof(efbuf));
 	return(atoi(efbuf));
 }

regex/main.ih

@@ -9,7 +9,7 @@ void rx_try(char *f0, char *f1, char *f2, char *f3, char *f4, int opts);
 int options(int type, char *s);
 int opt(int c, char *s);
 void fixstr(register char *p);
-char *check(char *str, regmatch_t sub, char *should);
+char *check(char *str, my_regmatch_t sub, char *should);
 static char *eprint(int err);
 static int efind(char *name);
 

regex/regex.h → regex/my_regex.h

@@ -20,15 +20,15 @@ typedef struct {
 	const char *re_endp;	/* end pointer for REG_PEND */
 	struct re_guts *re_g;	/* none of your business :-) */
 	CHARSET_INFO *charset;	/* For ctype things */
-} regex_t;
+} my_regex_t;
 typedef struct {
 	regoff_t rm_so;		/* start of match */
 	regoff_t rm_eo;		/* end of match */
-} regmatch_t;
+} my_regmatch_t;
 
 
 /* === regcomp.c === */
-extern int regcomp(regex_t *, const char *, int, CHARSET_INFO *charset);
+extern int my_regcomp(my_regex_t *, const char *, int, CHARSET_INFO *charset);
 #define	REG_BASIC	0000
 #define	REG_EXTENDED	0001
 #define	REG_ICASE	0002
@@ -58,11 +58,11 @@ extern int regcomp(regex_t *, const char *, int, CHARSET_INFO *charset);
 #define	REG_INVARG	16
 #define	REG_ATOI	255	/* convert name to number (!) */
 #define	REG_ITOA	0400	/* convert number to name (!) */
-extern size_t regerror(int, const regex_t *, char *, size_t);
+extern size_t my_regerror(int, const my_regex_t *, char *, size_t);
 
 
 /* === regexec.c === */
-extern int regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
+extern int my_regexec(const my_regex_t *, const char *, size_t, my_regmatch_t [], int);
 #define	REG_NOTBOL	00001
 #define	REG_NOTEOL	00002
 #define	REG_STARTEND	00004
@@ -72,12 +72,12 @@ extern int regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
 
 
 /* === regfree.c === */
-extern void regfree(regex_t *);
+extern void my_regfree(my_regex_t *);
 
 /* === reginit.c === */
 
-extern void regex_init(CHARSET_INFO *cs);	/* Should be called for multithread progs */
-extern void regex_end(void);	/* If one wants a clean end */
+extern void my_regex_init(CHARSET_INFO *cs);	/* Should be called for multithread progs */
+extern void my_regex_end(void);	/* If one wants a clean end */
 
 #ifdef __cplusplus
 }

regex/regcomp.c

 #include <my_global.h>
 #include <m_string.h>
 #include <m_ctype.h>
-#include <regex.h>
 #ifdef __WIN__
 #include  <limits.h>
 #endif
 
+#include "my_regex.h"
 #include "utils.h"
 #include "regex2.h"
 
@@ -100,8 +100,8 @@ static int never = 0;		/* for use in asserts; shuts lint up */
  = #define	REG_DUMP	0200
  */
 int				/* 0 success, otherwise REG_something */
-regcomp(preg, pattern, cflags, charset)
-regex_t *preg;
+my_regcomp(preg, pattern, cflags, charset)
+my_regex_t *preg;
 const char *pattern;
 int cflags;
 CHARSET_INFO *charset;
@@ -117,7 +117,7 @@ CHARSET_INFO *charset;
 #	define	GOODFLAGS(f)	((f)&~REG_DUMP)
 #endif
 
-	regex_init(charset);	/* Init cclass if neaded */
+	my_regex_init(charset);	/* Init cclass if neaded */
 	preg->charset=charset;
 	cflags = GOODFLAGS(cflags);
 	if ((cflags&REG_EXTENDED) && (cflags&REG_NOSPEC))
@@ -199,7 +199,7 @@ CHARSET_INFO *charset;
 
 	/* win or lose, we're done */
 	if (p->error != 0)	/* lose */
-		regfree(preg);
+		my_regfree(preg);
 	return(p->error);
 }
 

regex/regerror.c

 #include <my_global.h>
 #include <m_string.h>
 #include <m_ctype.h>
-#include <regex.h>
 
+#include "my_regex.h"
 #include "utils.h"
 #include "regerror.ih"
 
@@ -56,7 +56,7 @@ static struct rerr {
  */
 /* ARGSUSED */
 size_t
-regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size)
+my_regerror(int errcode, const my_regex_t *preg, char *errbuf, size_t errbuf_size)
 {
 	register struct rerr *r;
 	register size_t len;
@@ -101,7 +101,7 @@ regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size)
  */
 static char *
 regatoi(preg, localbuf)
-const regex_t *preg;
+const my_regex_t *preg;
 char *localbuf;
 {
 	register struct rerr *r;

regex/regerror.ih

@@ -4,7 +4,7 @@ extern "C" {
 #endif
 
 /* === regerror.c === */
-static char *regatoi(const regex_t *preg, char *localbuf);
+static char *regatoi(const my_regex_t *preg, char *localbuf);
 
 #ifdef __cplusplus
 }

regex/regexec.c

@@ -8,11 +8,10 @@
 #include <my_global.h>
 #include <m_string.h>
 #include <m_ctype.h>
-#include <regex.h>
 #ifdef __WIN__
 #include  <limits.h>
 #endif
-
+#include "my_regex.h"
 #include "utils.h"
 #include "regex2.h"
 
@@ -110,11 +109,11 @@ static int nope = 0;		/* for use in asserts; shuts lint up */
  * have been prototyped.
  */
 int				/* 0 success, REG_NOMATCH failure */
-regexec(preg, str, nmatch, pmatch, eflags)
-const regex_t *preg;
+my_regexec(preg, str, nmatch, pmatch, eflags)
+const my_regex_t *preg;
 const char *str;
 size_t nmatch;
-regmatch_t pmatch[];
+my_regmatch_t pmatch[];
 int eflags;
 {
 	register struct re_guts *g = preg->re_g;

regex/regfree.c

@@ -2,7 +2,7 @@
 #include <sys/types.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <regex.h>
+#include "my_regex.h"
 
 #include "utils.h"
 #include "regex2.h"
@@ -12,8 +12,8 @@
  = extern void regfree(regex_t *);
  */
 void
-regfree(preg)
-regex_t *preg;
+my_regfree(preg)
+my_regex_t *preg;
 {
 	register struct re_guts *g;
 

regex/reginit.c

@@ -7,7 +7,7 @@
 
 static bool regex_inited=0;
 
-void regex_init(CHARSET_INFO *cs)
+void my_regex_init(CHARSET_INFO *cs)
 {
   char buff[CCLASS_LAST][256];
   int  count[CCLASS_LAST];
@@ -67,7 +67,7 @@ void regex_init(CHARSET_INFO *cs)
   return;
 }
 
-void regex_end()
+void my_regex_end()
 {
   if (regex_inited)
   {

sql/item_cmpfunc.cc

@@ -2556,14 +2556,14 @@ Item_func_regex::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
       return 0;
     }
     int error;
-    if ((error= regcomp(&preg,res->c_ptr(),
-                        ((cmp_collation.collation->state &
-                          (MY_CS_BINSORT | MY_CS_CSSORT)) ?
-                         REG_EXTENDED | REG_NOSUB :
-                         REG_EXTENDED | REG_NOSUB | REG_ICASE),
-                        cmp_collation.collation)))
+    if ((error= my_regcomp(&preg,res->c_ptr(),
+                           ((cmp_collation.collation->state &
+                             (MY_CS_BINSORT | MY_CS_CSSORT)) ?
+                            REG_EXTENDED | REG_NOSUB :
+                            REG_EXTENDED | REG_NOSUB | REG_ICASE),
+                           cmp_collation.collation)))
     {
-      (void) regerror(error,&preg,buff,sizeof(buff));
+      (void) my_regerror(error,&preg,buff,sizeof(buff));
       my_printf_error(ER_REGEXP_ERROR,ER(ER_REGEXP_ERROR),MYF(0),buff);
       return 1;
     }
@@ -2605,15 +2605,15 @@ longlong Item_func_regex::val_int()
       prev_regexp.copy(*res2);
       if (regex_compiled)
       {
-	regfree(&preg);
+	my_regfree(&preg);
 	regex_compiled=0;
       }
-      if (regcomp(&preg,res2->c_ptr(),
-                  ((cmp_collation.collation->state &
-                    (MY_CS_BINSORT | MY_CS_CSSORT)) ?
-                   REG_EXTENDED | REG_NOSUB :
-                   REG_EXTENDED | REG_NOSUB | REG_ICASE),
-                   cmp_collation.collation))
+      if (my_regcomp(&preg,res2->c_ptr(),
+                     ((cmp_collation.collation->state &
+                       (MY_CS_BINSORT | MY_CS_CSSORT)) ?
+                      REG_EXTENDED | REG_NOSUB :
+                      REG_EXTENDED | REG_NOSUB | REG_ICASE),
+                     cmp_collation.collation))
       {
 	null_value=1;
 	return 0;
@@ -2622,7 +2622,7 @@ longlong Item_func_regex::val_int()
     }
   }
   null_value=0;
-  return regexec(&preg,res->c_ptr(),0,(regmatch_t*) 0,0) ? 0 : 1;
+  return my_regexec(&preg,res->c_ptr(),0,(my_regmatch_t*) 0,0) ? 0 : 1;
 }
 
 
@@ -2632,7 +2632,7 @@ void Item_func_regex::cleanup()
   Item_bool_func::cleanup();
   if (regex_compiled)
   {
-    regfree(&preg);
+    my_regfree(&preg);
     regex_compiled=0;
   }
   DBUG_VOID_RETURN;

sql/item_cmpfunc.h

@@ -915,11 +915,11 @@ class Item_func_like :public Item_bool_func2
 
 #ifdef USE_REGEX
 
-#include <regex.h>
+#include "my_regex.h"
 
 class Item_func_regex :public Item_bool_func
 {
-  regex_t preg;
+  my_regex_t preg;
   bool regex_compiled;
   bool regex_is_const;
   String prev_regexp;

sql/mysqld.cc

@@ -1028,7 +1028,7 @@ void clean_up(bool print_message)
     my_free((gptr) ssl_acceptor_fd, MYF(MY_ALLOW_ZERO_PTR));
 #endif /* HAVE_OPENSSL */
 #ifdef USE_REGEX
-  regex_end();
+  my_regex_end();
 #endif
 
   if (print_message && errmesg)
@@ -2529,7 +2529,7 @@ static int init_common_variables(const char *conf_file_name, int argc,
   set_var_init();
   mysys_uses_curses=0;
 #ifdef USE_REGEX
-  regex_init(&my_charset_latin1);
+  my_regex_init(&my_charset_latin1);
 #endif
   if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
 						    MY_CS_PRIMARY,
@@ -5879,7 +5879,7 @@ static void mysql_init_variables(void)
 #else
   have_openssl=SHOW_OPTION_NO;
 #endif
-#ifdef HAVE_BROKEN_REALPATH
+#if !defined(HAVE_REALPATH) || defined(HAVE_BROKEN_REALPATH)
   have_symlink=SHOW_OPTION_NO;
 #else
   have_symlink=SHOW_OPTION_YES;
@@ -6550,7 +6550,7 @@ static void get_options(int argc,char **argv)
     usage();
     exit(0);
   }
-#if defined(HAVE_BROKEN_REALPATH)
+#if !defined(HAVE_REALPATH) || defined(HAVE_BROKEN_REALPATH)
   my_use_symdir=0;
   my_disable_symlinks=1;
   have_symlink=SHOW_OPTION_NO;