include libslang-1.4.9 and automatically build it and link erlang-slang against it

few (erlang) people will still have libslang-1.4.9 installed or spend time
to get it to link against the driver

1 files changed, 49 insertions, 0 deletions

diff --git a/libslang/src/slmemcpy.c b/libslang/src/slmemcpy.c
new file mode 100644
index 0000000..31136d6
--- /dev/null
+++ b/libslang/src/slmemcpy.c
@@ -0,0 +1,49 @@
+/* Copyright (c) 1992, 1999, 2001, 2002, 2003 John E. Davis
+ * This file is part of the S-Lang library.
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Perl Artistic License.
+ */
+
+/* These routines are fast memcpy, memset routines.  When available, I
+   use system rouines.  For msdos, I use inline assembly. */
+
+/* The current versions only work in the forward direction only!! */
+
+#include "slinclud.h"
+
+#include "slang.h"
+#include "_slang.h"
+
+char *SLmemcpy(char *s1, char *s2, int n)
+{
+#if defined(__BORLANDC__) && defined(__MSDOS__)
+   asm mov ax, ds
+   asm mov bx, si
+   asm mov dx, di
+   asm mov cx, n
+   asm les di, s1
+   asm lds si, s2
+   asm cld
+   asm rep movsb
+   asm mov ds, ax
+   asm mov si, bx
+   asm mov di, dx
+   return(s1);
+
+#else
+   register char *smax, *s = s1;
+   int n2;
+
+   n2 = n % 4;
+   smax = s + (n - 4);
+   while (s <= smax)
+     {
+	*s = *s2; *(s + 1) = *(s2 + 1); *(s + 2) = *(s2 + 2); *(s + 3) = *(s2 + 3);
+	s += 4;
+	s2 += 4;
+     }
+   while (n2--) *s++ = *s2++;
+   return(s1);
+#endif
+}