Guard functions by SO_PASSCRED

Author: nikic

ext/sockets/conversions.c

@@ -441,6 +441,8 @@ static void from_zval_write_sa_family(const zval *arr_value, char *field, ser_co
 	ival = (sa_family_t)lval;
 	memcpy(field, &ival, sizeof(ival));
 }
+
+#ifdef SO_PASSCRED
 static void from_zval_write_pid_t(const zval *arr_value, char *field, ser_context *ctx)
 {
 	zend_long lval;
@@ -488,6 +490,7 @@ static void from_zval_write_uid_t(const zval *arr_value, char *field, ser_contex
 	ival = (uid_t)lval;
 	memcpy(field, &ival, sizeof(ival));
 }
+#endif
 
 void to_zval_read_int(const char *data, zval *zv, res_context *ctx)
 {
@@ -524,6 +527,7 @@ static void to_zval_read_sa_family(const char *data, zval *zv, res_context *ctx)
 
 	ZVAL_LONG(zv, (zend_long)ival);
 }
+#ifdef SO_PASSCRED
 static void to_zval_read_pid_t(const char *data, zval *zv, res_context *ctx)
 {
 	pid_t ival;
@@ -538,6 +542,7 @@ static void to_zval_read_uid_t(const char *data, zval *zv, res_context *ctx)
 
 	ZVAL_LONG(zv, (zend_long)ival);
 }
+#endif
 
 /* CONVERSIONS for sockaddr */
 static void from_zval_write_sin_addr(const zval *zaddr_str, char *inaddr, ser_context *ctx)