- Preparations for clib2 1.205

- Added support for ELF shared objects and libraries. This is implemented through
  constructor/destructor functions, which means that you can use this
  functionality even in Amiga Exec style shared libraries, with the proper
  library initialization code to invoke the constructor/destructor functions
  for you.

- Updated uname() to recognize AmigaOS 4.1.

- The translation from Unix to Amiga path names did not properly process
  multiple occurences of "/./" in the path name. Thanks go to Steven Solie
  for finding the issue.

- The detection of "/./" and "/../" patterns in Unix path names to be
  translated into Amiga path names did not test if it was overrunning
  the end of the string.

- If strcmp(), strncmp() and memcmp() detect a pair of different
  characters, then the function result must be calculated as if the
  characters were of type "unsigned char". This is a requirement
  according to the ISO 'C' (1994) standard. Thanks go to Georg Steger
  for finding the issue.

- The definitions for INT_MIN, INT_MAX and UINT_MAX in <limits.h> no
  longer use long integer types, as prompted by Steven Solie.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15204 87f5fb63-7c3d-0410-a384-fd976d0f7a62

library/string_strcmp.c

@@ -1,5 +1,5 @@
 /*
- * $Id: string_strcmp.c,v 1.4 2006-01-08 12:04:27 obarthel Exp $
+ * $Id: string_strcmp.c,v 1.5 2010-08-20 15:33:36 obarthel Exp $
  *
  * :ts=4
  *
@@ -62,6 +62,8 @@ strcmp(const char *s1, const char * s2)
 
 	if(s1 != s2)
 	{
+		int c1,c2;
+		
 		while((*s1) == (*s2))
 		{
 			if((*s1) == '\0')
@@ -71,7 +73,12 @@ strcmp(const char *s1, const char * s2)
 			s2++;
 		}
 
-		result = (*s1) - (*s2);
+		/* The comparison must be performed as if the
+		   characters were unsigned characters. */
+		c1 = *(unsigned char *)s1;
+		c2 = *(unsigned char *)s2;
+
+		result = c1 - c2;
 	}
 
  out: