Hi all,
This is my nginx setup:
- nginx 1.0.11
- nginx-upload-module 2.2.0
(http://www.grid.net.ru/nginx/upload.en.html)
I can compile from source with --add-module flag on:
- OS X Snow Leopard (gcc version 4.2.1)
- Ubuntu 10.10 (gcc version 4.4.3)
But compilation failed on Kubuntu 11.10 (gcc version 4.6.1)
It failed because the http upload module defined a variable but the
compiler claimed it wasn’t used and fails compilation.
Below is snippet inside ngx_http_upload_module.c
static ngx_int_t /* {{{ ngx_http_upload_merge_ranges */
ngx_http_upload_merge_ranges(ngx_http_upload_ctx_t *u,
ngx_http_upload_range_t *range_n) {
int result;
/* Some more code .... */
// This is where it is being called.
if(out_buf.file_pos < state_file->info.st_size) { result =
ftruncate(state_file->fd, out_buf.file_pos); }
}
If I change objs/Makefile to ignore warning, compilation works just
fine. But obviously nginx likes to compile with strict rules. Inside
objs/Makefile:
CFLAGS = -pipe -O -W -Wall -Wpointer-arith -Wno-unused-parameter
-Wunused-function -Wunused-variable -Wunused-value -Werror
So my questions are:
-
Is this the module’s fault?
-
Different gcc versions works differently? (I’m a noob in C)
-
Is there a way to fix it without editing objs/Makefile? I prefer to
keep nginx source code as-is. And I’m ok to change the source code of
the module because it looks abandoned anyway.
Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,223298,223298#msg-223298