[PATCH] Added nginx_is_free macro to simplify version detection

[Maxim Dounin]

# HG changeset patch
# User Maxim Dounin <mdounin at mdounin.ru>
# Date 1751431259 -10800
#      Wed Jul 02 07:40:59 2025 +0300
# Node ID 3da75a6d4086f48211fa2fbdd1538b5ebedc21bb
# Parent  51e61f74584c40b0b3164b15491804ec8976432e
Added nginx_is_free macro to simplify version detection.

diff --git a/src/core/nginx.h b/src/core/nginx.h
--- a/src/core/nginx.h
+++ b/src/core/nginx.h
@@ -12,6 +12,8 @@
 #define nginx_version      1029000
 #define NGINX_VERSION      "1.29.0"
 
+#define nginx_is_free      1
+
 #define NGINX_NAME         "freenginx"
 #define NGINX_VER          NGINX_NAME "/" NGINX_VERSION