added mysql source for win build

--HG--
branch : trunk

1 files changed, 66 insertions, 0 deletions

diff --git a/externals/mysql/strings/bcmp.c b/externals/mysql/strings/bcmp.c
new file mode 100644
index 00000000000..1b6ed22fc22
--- /dev/null
+++ b/externals/mysql/strings/bcmp.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 2000 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+/*
+  bcmp(s1, s2, len) returns 0 if the "len" bytes starting at "s1" are
+  identical to the "len" bytes starting at "s2", non-zero if they are
+  different.
+  Now only used with purify because purify gives wrong warnings when
+  comparing a shorter string with bcmp.
+*/
+
+#include <my_global.h>
+#include "m_string.h"
+
+#ifdef HAVE_purify
+#undef bcmp
+#undef HAVE_BCMP
+#endif
+
+#if !defined(bcmp) && !defined(HAVE_BCMP)
+
+#if defined(MC68000) && defined(DS90)
+
+int bcmp(s1,s2, len)
+const char *s1;
+const char *s2;
+uint len;					/* 0 <= len <= 65535 */
+{
+  asm("		movl	12(a7),d0	");
+  asm("		subqw	#1,d0		");
+  asm("		blt	.L5		");
+  asm("		movl	4(a7),a1	");
+  asm("		movl	8(a7),a0	");
+  asm(".L4:	cmpmb	(a0)+,(a1)+	");
+  asm("		dbne	d0,.L4		");
+  asm(".L5:	addqw	#1,d0		");
+}
+
+#else
+
+#ifndef HAVE_purify
+size_t bcmp(register const uchar *s1,register const uchar *s2,
+            register size_t len)
+#else
+size_t my_bcmp(register const uchar *s1,register const uchar *s2,
+               register size_t len)
+#endif
+{
+  while (len-- != 0 && *s1++ == *s2++) ;
+  return len+1;
+}
+
+#endif
+#endif /* BSD_FUNCS */