f-stack에서nginx 설정 후 오류 발생: ignoring return value of "ftruncate"

문제

Nginx 구성 후 오류 발생:

src/os/unix/ngx_process_cycle.c: In function ‘ngx_start_worker_processes’:
src/os/unix/ngx_process_cycle.c:388:5: error: ignoring return value of ‘ftruncate’, declared with attribute warn_unused_result [-Werror=unused-result]
     (void) ftruncate(shm_fd, sizeof(sem_t));
     ^
cc1: all warnings being treated as errors
objs/Makefile:799: recipe for target 'objs/src/os/unix/ngx_process_cycle.o' failed
make[1]: *** [objs/src/os/unix/ngx_process_cycle.o] Error 1
make[1]: Leaving directory '/home/sdn/f-stack/app/nginx-1.11.10'
Makefile:8: recipe for target 'build' failed
make: *** [build] Error 2

환경

The compiling environment is Ubuntu

uname -r:4.13.0-45-generic

cc -v:gcc version 5.4.0

DPDK와 F-stack은 성공적으로 설치할 수 있지만 Nginx는 만들 수 없습니다.
원본 문서에 따라 configure를 구성합니다.

# bash ./configure --prefix=/usr/local/nginx_fstack --with-ff_module

# make

다음 오류가 발생했습니다.

src/os/unix/ngx_process_cycle.c: In function ‘ngx_start_worker_processes’:
src/os/unix/ngx_process_cycle.c:388:5: error: ignoring return value of ‘ftruncate’, declared with attribute warn_unused_result [-Werror=unused-result]
     (void) ftruncate(shm_fd, sizeof(sem_t));
     ^
cc1: all warnings being treated as errors
objs/Makefile:799: recipe for target 'objs/src/os/unix/ngx_process_cycle.o' failed
make[1]: *** [objs/src/os/unix/ngx_process_cycle.o] Error 1
make[1]: Leaving directory '/home/sdn/f-stack/app/nginx-1.11.10'
Makefile:8: recipe for target 'build' failed
make: *** [build] Error 2

해결 방법

파일을 구성할 때 다음을 입력합니다.

./configure --prefix=/usr/local/nginx_fstack --with-ff_module --with-cc-opt="-Wno-implicit-fallthrough -Wno-unused-result"

github issues

그 엔지니어의 회답에 감사 드립니다!!

다음으로 전송:https://www.cnblogs.com/vancasola/p/9335724.html