The problem is, http_postpone_filter module is always build, but was set to no before add vod module, then cause: /usr/bin/x86_64-pc-linux-gnu-ld.bfd: objs/src/http/ngx_http_postpone_filter_module.o:(.data+0x40): multiple definition of `ngx_http_postpone_filter_module'; objs/src/http/ngx_http_postpone_filter_module.o:(.data+0x40): first defined here export HTTP_POSTPONE=no should removed in ebuild, see following: if use nginx_modules_http_vod; then http_enabled=1 export HTTP_POSTPONE=no myconf+=( --add-module=${HTTP_VOD_MODULE_WD} ) fi Reproducible: Always