[nginx] Added freenginx macro to simplify version detection.

[Maxim Dounin]

details:   http://freenginx.org/hg/nginx/rev/a1dd1c5d8e86
branches:  
changeset: 9387:a1dd1c5d8e86
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Thu Jul 03 07:44:39 2025 +0300
description:
Added freenginx macro to simplify version detection.

For modules which want to be compatible with both freenginx and F5 NGINX
relevant version detection for the r->start_time change in 9379:2edfdf15f9b4
would look like:

#if (defined freenginx && nginx_version >= 1029000)
... use r->start_time
#else
... use r->start_sec
#endif

Requested by Georgy Shelkovy,
https://github.com/freenginx/nginx/issues/12

diffstat:

 src/core/nginx.h |  2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diffs (12 lines):

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 freenginx          1
+
 #define NGINX_NAME         "freenginx"
 #define NGINX_VER          NGINX_NAME "/" NGINX_VERSION