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, 47 insertions, 0 deletions

diff --git a/libslang/src/slmemchr.c b/libslang/src/slmemchr.c
new file mode 100644
index 0000000..2b69ab8
--- /dev/null
+++ b/libslang/src/slmemchr.c
@@ -0,0 +1,47 @@
+/* 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 *SLmemchr(register char *p, register char c, register int n)
+{
+   int n2;
+   register char *pmax;
+
+   pmax = p + (n - 32);
+
+   while (p <= pmax)
+     {
+	if ((*p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c)
+	    || (*++p == c) || (*++p == c) || (*++p == c) || (*++p == c))
+	  return p;
+	p++;
+     }
+
+   n2 = n % 32;
+
+   while (n2--)
+     {
+	if (*p == c) return p;
+	p++;
+     }
+   return(NULL);
+}