为什么 luarocks makefile 找不到我的 lua 解释器？

Question

我正在尝试将 luarocks 安装到自定义位置。我已经下载了最新的压缩包 (v2.3.0) 和运行以下 ./configure 命令：

# OPENRESTY_PREFIX is set to /opt/openresty
./configure --prefix=$OPENRESTY_PREFIX \
            --with-lua=$OPENRESTY_PREFIX/luajit \
            --with-lua-include=$OPENRESTY_PREFIX/luajit/include \
            --with-lua-lib=$OPENRESTY_PREFIX/lualib

这会产生以下错误：

Checking Lua interpreter... lua not found (looked in =/opt/openresty/luajit/bin)
You may want to use the flag --with-lua or --with-lua-bin. See --help.

configure failed.

我首先检查了 /opt/openresty/luajit/bin/lua 是否正确调用了解释器，确实如此。然后我检查了 /opt/openresty/luajit/bin 的内容并发现了以下内容：

$ ls -al /opt/openresty/luajit/bin/
total 2860
drwxr-xr-x 2 root root    4096 Jan  9 14:05 .
drwxr-xr-x 6 root root    4096 Jan  9 14:05 ..
lrwxrwxrwx 1 root root      44 Jan  9 14:05 lua -> /opt/openresty/luajit/bin/luajit-2.1.0-beta1
lrwxrwxrwx 1 root root      18 Jan  9 14:05 luajit -> luajit-2.1.0-beta1
-rwxr-xr-x 1 root root 2918392 Jan  9 14:05 luajit-2.1.0-beta1

正如我们所见，lua 和 luajit 是指向 luajit-2.1.0-beta1 的符号链接。我认为 make 可能正在与符号链接作斗争，所以我尝试运行将原始命令与 --lua-suffix=jit-2.1.0-beta1

我得到了类似的错误消息，所以看起来即使指向“真实”文件，make 也会出错：

Checking Lua interpreter... luajit-2.1.0-beta1 not found (looked in =/opt/openresty/luajit/bin)
You may want to use the flag --with-lua or --with-lua-bin. See --help.

configure failed.

我在这里显然遗漏了一些基本的东西。我做错了什么？

补充信息

构建目标

我正在构建 debian:jessie docker 图像。这是相应的Dockerfile，以防它有助于揭示目录结构。

FROM debian:jessie

# derived from https://github.com/ficusio/openresty/blob/master/debian/Dockerfile

RUN apt-get update && apt-get install -y --no-install-recommends \
    curl perl make build-essential procps libreadline-dev libncurses5-dev libpcre3-dev libssl-dev

ENV CFLAGS '-O2'
ENV OPENRESTY_VERSION 1.9.7.1
ENV OPENRESTY_PREFIX /opt/openresty
ENV NGINX_PREFIX /opt/openresty/nginx
ENV VAR_PREFIX /var/nginx

# NginX prefix is automatically set by OpenResty to $OPENRESTY_PREFIX/nginx
# look for $ngx_prefix in https://github.com/openresty/ngx_openresty/blob/master/util/configure

RUN cd /tmp \
    && echo "==> Downloading OpenResty..." \
    && curl -sSL http://openresty.org/download/ngx_openresty-${OPENRESTY_VERSION}.tar.gz | tar -xvz \
    && echo "==> Configuring OpenResty..." \
    && cd ngx_openresty-* \
    && readonly NPROC=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) \
    && echo "using upto $NPROC threads" \
    && ./configure \
    --prefix=$OPENRESTY_PREFIX \
    --http-client-body-temp-path=$VAR_PREFIX/client_body_temp \
    --http-proxy-temp-path=$VAR_PREFIX/proxy_temp \
    --http-log-path=$VAR_PREFIX/access.log \
    --error-log-path=$VAR_PREFIX/error.log \
    --pid-path=$VAR_PREFIX/nginx.pid \
    --lock-path=$VAR_PREFIX/nginx.lock \
    --with-luajit \
    --with-pcre-jit \
    --with-ipv6 \
    --with-http_ssl_module \
    --without-http_scgi_module \
    -j${NPROC} \
    && echo "==> Building OpenResty..." \
    && make -j${NPROC} \
    && echo "==> Installing OpenResty..." \
    && make install \
    && echo "==> Finishing..." \
    && ln -sf $NGINX_PREFIX/sbin/nginx /usr/local/bin/nginx \
    && ln -sf $NGINX_PREFIX/sbin/nginx /usr/local/bin/openresty \
    && ln -sf $OPENRESTY_PREFIX/bin/resty /usr/local/bin/resty \
    && ln -sf $OPENRESTY_PREFIX/luajit/bin/luajit-* $OPENRESTY_PREFIX/luajit/bin/lua \
    && ln -sf $OPENRESTY_PREFIX/luajit/bin/luajit-* /usr/local/bin/lua \
    && apt-get remove -y make build-essential \
    && rm -rf /tmp/ngx_openresty* \
    && rm -rf /var/lib/apt/lists/*

WORKDIR $NGINX_PREFIX

# Example contents for the `nginx` directory can be found at:
# https://github.com/ficusio/openresty/tree/master/_example/nginx
ONBUILD RUN rm -rf conf/* html/*
ONBUILD COPY nginx $NGINX_PREFIX

CMD ["nginx", "-g", "daemon off; error_log /dev/stderr info;"]

Answer 1

我的猜测是 OPENRESTY_PREFIX 没有设置为 /opt/openresty，而是设置为 =/opt/openresty。这是由错误消息给出的：

Checking Lua interpreter... lua not found (looked in =/opt/openresty/luajit/bin)

由以下行生成：

echo "lua$LUA_SUFFIX not found (looked in $LUA_BINDIR)"

你只需要找出那个无关紧要的 = 标志现在是从哪里来的。它也可以来自 configure 命令行，例如：

--with-lua==$OPENRESTY_PREFIX/luajit

为什么 luarocks makefile 找不到我的 lua 解释器？

Why is the luarocks makefile failing to find my lua interpreter?

lua

makefile

build

luarocks

补充信息

构建目标