Proper ICU version check for restriction levels availability

ext/intl/spoofchecker/spoofchecker_class.c

@@ -84,9 +84,11 @@ ZEND_BEGIN_ARG_INFO_EX(spoofchecker_are_confusable, 0, 0, 2)
 	ZEND_ARG_INFO(1, error)
 ZEND_END_ARG_INFO()
 
+#if U_ICU_VERSION_MAJOR_NUM >= 51
 ZEND_BEGIN_ARG_INFO_EX(spoofchecker_set_restriction_level, 0, 0, 1)
 	ZEND_ARG_INFO(0, level)
 ZEND_END_ARG_INFO()
+#endif
 
 /* }}} */
 
@@ -100,7 +102,9 @@ zend_function_entry Spoofchecker_class_functions[] = {
 	PHP_ME(Spoofchecker, areConfusable, spoofchecker_are_confusable, ZEND_ACC_PUBLIC)
 	PHP_ME(Spoofchecker, setAllowedLocales, spoofchecker_set_allowed_locales, ZEND_ACC_PUBLIC)
 	PHP_ME(Spoofchecker, setChecks, spoofchecker_set_checks, ZEND_ACC_PUBLIC)
+#if U_ICU_VERSION_MAJOR_NUM >= 51
 	PHP_ME(Spoofchecker, setRestrictionLevel, spoofchecker_set_restriction_level, ZEND_ACC_PUBLIC)
+#endif
 	PHP_FE_END
 };
 /* }}} */

ext/intl/spoofchecker/spoofchecker_class.h

@@ -78,7 +78,7 @@ extern zend_class_entry *Spoofchecker_ce_ptr;
         RETURN_FALSE;                                                           \
     }                                                                           \
 
-#if U_ICU_VERSION_MAJOR_NUM >= 58
+#if U_ICU_VERSION_MAJOR_NUM >= 51
 #define SPOOFCHECKER_DEFAULT_RESTRICTION_LEVEL USPOOF_HIGHLY_RESTRICTIVE
 #endif
 

ext/intl/spoofchecker/spoofchecker_create.c

@@ -43,7 +43,7 @@ PHP_METHOD(Spoofchecker, __construct)
 	co->uspoof = uspoof_open(SPOOFCHECKER_ERROR_CODE_P(co));
 	INTL_METHOD_CHECK_STATUS(co, "spoofchecker: unable to open ICU Spoof Checker");
 
-#if U_ICU_VERSION_MAJOR_NUM >= 58
+#if U_ICU_VERSION_MAJOR_NUM >= 51
 	/* TODO save it into the object for further suspiction check comparison. */
 	/* ICU 58 removes WSC and MSC handling. However there are restriction
 	 levels as defined in

ext/intl/spoofchecker/spoofchecker_main.c

@@ -134,6 +134,7 @@ PHP_METHOD(Spoofchecker, setChecks)
 }
 /* }}} */
 
+#if U_ICU_VERSION_MAJOR_NUM >= 53
 /* {{{ proto void Spoofchecker::setRestrictionLevel( int $restriction_level )
  * Set the loosest restriction level allowed for strings.
  */
@@ -163,6 +164,7 @@ PHP_METHOD(Spoofchecker, setRestrictionLevel)
 	uspoof_setRestrictionLevel(co->uspoof, (URestrictionLevel)level);
 }
 /* }}} */
+#endif
 
 /*
  * Local variables:

ext/intl/spoofchecker/spoofchecker_main.h

@@ -23,6 +23,8 @@ PHP_METHOD(Spoofchecker, isSuspicious);
 PHP_METHOD(Spoofchecker, areConfusable);
 PHP_METHOD(Spoofchecker, setAllowedLocales);
 PHP_METHOD(Spoofchecker, setChecks);
+#if U_ICU_VERSION_MAJOR_NUM >= 51
 PHP_METHOD(Spoofchecker, setRestrictionLevel);
+#endif
 
 #endif // SPOOFCHECKER_MAIN_H