We should define symlink functions only when HAVE_SYMLINK is defined.

Otherwise, they should be aliased as not available.

ext/standard/basic_functions.c

@@ -182,11 +182,19 @@ function_entry basic_functions[] = {
 	PHP_FE(rawurlencode,							NULL)
 	PHP_FE(rawurldecode,							NULL)
 
+#ifdef HAVE_SYMLINK
 	PHP_FE(readlink,								NULL)
 	PHP_FE(linkinfo,								NULL)
 	PHP_FE(symlink,									NULL)
 	PHP_FE(link,									NULL)
 	PHP_FE(unlink,									NULL)
+#else
+	PHP_FALIAS(readlink, warn_not_available,		NULL)
+	PHP_FALIAS(linkinfo, warn_not_available,		NULL)
+	PHP_FALIAS(symlink, warn_not_available,			NULL)
+	PHP_FALIAS(link, warn_not_available,			NULL)
+	PHP_FALIAS(unlink, warn_not_available,			NULL)
+#endif
 	
 	PHP_FE(exec, 									second_and_third_args_force_ref)
 	PHP_FE(system, 									second_arg_force_ref)

ext/standard/link.c

@@ -22,6 +22,8 @@
 #include "php_filestat.h"
 #include "php_globals.h"
 
+#ifdef HAVE_SYMLINK
+
 #include <stdlib.h>
 #if HAVE_UNISTD_H
 #include <unistd.h>
@@ -52,7 +54,6 @@
    Return the target of a symbolic link */
 PHP_FUNCTION(readlink)
 {
-#if HAVE_SYMLINK
 	pval **filename;
 	char buff[256];
 	int ret;
@@ -70,7 +71,6 @@ PHP_FUNCTION(readlink)
 	/* Append NULL to the end of the string */
 	buff[ret] = '\0';
 	RETURN_STRING(buff,1);
-#endif
 }
 /* }}} */
 
@@ -78,7 +78,6 @@ PHP_FUNCTION(readlink)
    Returns the st_dev field of the UNIX C stat structure describing the link */
 PHP_FUNCTION(linkinfo)
 {
-#if HAVE_SYMLINK
 	pval **filename;
 	struct stat sb;
 	int ret;
@@ -94,7 +93,6 @@ PHP_FUNCTION(linkinfo)
 		RETURN_LONG(-1L);
 	}
 	RETURN_LONG((long) sb.st_dev);
-#endif
 }
 /* }}} */
 
@@ -102,7 +100,6 @@ PHP_FUNCTION(linkinfo)
    Create a symbolic link */
 PHP_FUNCTION(symlink)
 {
-#if HAVE_SYMLINK
 	pval **topath, **frompath;
 	int ret;
 	PLS_FETCH();
@@ -127,7 +124,6 @@ PHP_FUNCTION(symlink)
 		RETURN_FALSE;
 	}
 	RETURN_TRUE;
-#endif
 }
 /* }}} */
 
@@ -135,7 +131,6 @@ PHP_FUNCTION(symlink)
    Create a hard link */
 PHP_FUNCTION(link)
 {
-#if HAVE_LINK
 	pval **topath, **frompath;
 	int ret;
 	PLS_FETCH();
@@ -160,7 +155,6 @@ PHP_FUNCTION(link)
 		RETURN_FALSE;
 	}
 	RETURN_TRUE;
-#endif
 }
 /* }}} */
 
@@ -192,6 +186,8 @@ PHP_FUNCTION(unlink)
 }
 /* }}} */
 
+#endif
+
 
 /*
  * Local variables:

ext/standard/php_link.h

@@ -32,10 +32,14 @@
 #ifndef _PHP_LINK_H
 #define _PHP_LINK_H
 
+#ifdef HAVE_SYMLINK
+
 PHP_FUNCTION(link);
 PHP_FUNCTION(unlink);
 PHP_FUNCTION(readlink);
 PHP_FUNCTION(linkinfo);
 PHP_FUNCTION(symlink);
 
+#endif
+
 #endif /* _PHP_LINK_H */