libutil: don't provide strstr implementation

strstr is part of C89.

Signed-off-by: Masatake YAMATO <[email protected]>

Author: masatake

configure.ac

@@ -581,7 +581,6 @@ if test "$REPLACE_FNMATCH" != 0; then
 fi
 
 AC_CHECK_FUNCS(asprintf)
-AC_CHECK_FUNCS(strstr)
 AC_CHECK_FUNCS(strcasecmp stricmp, break)
 AC_CHECK_FUNCS(strncasecmp strnicmp, break)
 

main/routines.c

@@ -300,19 +300,6 @@ extern int strnuppercmp (const char *s1, const char *s2, size_t n)
 	return result;
 }
 
-#ifndef HAVE_STRSTR
-extern char* strstr (const char *str, const char *substr)
-{
-	const size_t length = strlen (substr);
-	const char *p;
-
-	for (p = str  ;  *p != '\0'  ;  ++p)
-		if (strncmp (p, substr, length) == 0)
-			return (char*) p;
-	return NULL;
-}
-#endif
-
 extern char* strrstr (const char *str, const char *substr)
 {
 	const size_t length = strlen (substr);

main/routines.h

@@ -57,9 +57,6 @@ extern void eFreeIndirect(void **ptr);
 /* String manipulation functions */
 extern int struppercmp (const char *s1, const char *s2);
 extern int strnuppercmp (const char *s1, const char *s2, size_t n);
-#ifndef HAVE_STRSTR
-extern char* strstr (const char *str, const char *substr);
-#endif
 extern char* strrstr (const char *str, const char *substr);
 extern char* eStrdup (const char* str);
 extern char* eStrndup (const char* str, size_t len);