为Raku构建多个后端失败

Question

在专门阅读了https://github.com/rakudo/rakudo at https://github.com/rakudo/rakudo 这里的文章之后，我大胆地为rakudo构建了多个后端。

我用64位Ubuntu 20.04来做这个。我先安装了

• build essential，libencode-perl
• default-jdk准备的机器，以便编译rakudo。

克隆repo之后，当我运行命令perl Configure.pl --backends=moar,jvm --prefix=/usr时，会得到以下错误：

root@1145eac1ed77:/rakudo# perl Configure.pl --backends=moar,jvm --prefix=/usr
No pre-existing installed file found at /usr/bin/nqp-m
No pre-existing installed file found at /usr/bin/nqp-j
No pre-existing installed file found at /usr/bin/nqp-m
No pre-existing installed file found at /usr/bin/nqp-j
Use of uninitialized value $str in substitution (s///) at /rakudo/3rdparty/nqp-configure/lib/NQP/Config.pm line 1420.
Use of uninitialized value $str in substitution (s///) at /rakudo/3rdparty/nqp-configure/lib/NQP/Config.pm line 1421.
Use of uninitialized value in concatenation (.) or string at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 361.
Use of uninitialized value in quotemeta at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 371.
Use of uninitialized value in substitution (s///) at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 371.
Use of uninitialized value in substitution (s///) at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 371.
Use of uninitialized value in quotemeta at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 373.
Use of uninitialized value in sprintf at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 414.
Redundant argument in sprintf at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 414.
Use of uninitialized value in concatenation (.) or string at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 423.
Use of uninitialized value in concatenation (.) or string at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 423.
Using /usr/bin/nqp-m (version  / MoarVM ).
Use of uninitialized value in sprintf at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 428.
Redundant argument in sprintf at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 428.
===SORRY!===
  jvm::runtime.jars value not available from /usr/bin/nqp-j --show-config.

  To automatically clone (git) and build a copy of NQP 2020.02.1-154-ga7b0b7be2,
  try re-running Configure.pl with the '--gen-moar' option.
  Or, use '--prefix=' to explicitly specify the path where the NQP and MoarVM
  executables can be found that are use to build Rakudo. at /rakudo/3rdparty/nqp-configure/lib/NQP/Config.pm line 192.
 at /rakudo/3rdparty/nqp-configure/lib/NQP/Config.pm line 34.
        NQP::Config::__ANON__("===SORRY!===\x{a}  jvm::runtime.jars value not available from /us"...) called at /rakudo/3rdparty/nqp-configure/lib/NQP/Config.pm line 192
        NQP::Config::sorry(NQP::Config::Rakudo=HASH(0x55e4cb9c5258), "jvm::runtime.jars value not available from /usr/bin/nqp-j --s"..., "\x{a}To automatically clone (git) and build a copy of NQP 2020.02"..., "try re-running Configure.pl with the '--gen-moar' option.", "Or, use '--prefix=' to explicitly specify the path where the "..., "executables can be found that are use to build Rakudo.") called at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 576
        NQP::Config::Rakudo::post_active_backends(NQP::Config::Rakudo=HASH(0x55e4cb9c5258)) called at /rakudo/3rdparty/nqp-configure/lib/NQP/Config.pm line 660
        NQP::Config::configure_active_backends(NQP::Config::Rakudo=HASH(0x55e4cb9c5258)) called at /rakudo/tools/lib/NQP/Config/Rakudo.pm line 473
        NQP::Config::Rakudo::configure_active_backends(NQP::Config::Rakudo=HASH(0x55e4cb9c5258)) called at Configure.pl line 102

怎么能修好呢？

我想知道命令ALL中perl Configure.pl --backends=ALL所指的是什么。

、Rakudo.js、、这里和这里都有一个项目(我想它仍然合并在master中)。这是Javascript后端吗？ALL的意思是moar、jvm和Javascript后端吗？

Answer 1

正如@ugexe所指出的，我在命令中丢失了--gen-moar。

为了将来的参考，我想记录一下我在尝试构建Rakudo之后学到的东西。

Moar和JVM后端

对于构建moar和jvm后端，您需要依赖项

apt-get install -y gcc \
        libc6-dev \
        libencode-perl \
        wget \
        libzstd-dev \
        default-jdk \
        make

并运行命令

perl Configure.pl --prefix=/usr --gen-moar --backends=moar,jvm --relocatable

用于建筑。成功构建之后，您将得到rakudo-m、rakudo-gdb-m、rakudo-valgrind-m、moar后端的rakudo-lldb-m和jvm后端的rakudo-j、rakudo-debug-j。

Javascript和Moar后端

您不能构建孤立的javascript后端。在构建js后端moar时。所以要构建javascript后端，要构建的命令是，

perl Configure.pl --prefix=/usr --gen-moar --backends=moar,js --relocatable

构建javascript后端的额外依赖关系是nodejs、g++和npm的可用性。

apt-get install gcc g++ \
        libc6-dev \
        libencode-perl \
        wget \
        libzstd-dev \
        nodejs \
        npm \
        make

但是在构建javascript后端时，我得到了以下错误：

'/usr/bin/perl' tools/build/npm-install-or-link.pl . src/vm/js/nqp-runtime nqp-runtime 
Can't exec "npm": No such file or directory at tools/build/npm-install-or-link.pl line 18.
=== SORRY! === `npm install /rakudo/nqp/src/vm/js/nqp-runtime` failed with exit code -1 (72057594037927935)
make: *** [Makefile:852: js-deps] Error 255

搜索揭示

如果您正在开发nqp-js，则可能需要传递--link选项，以便将nqp-运行时链接到而不是已安装。

尽管构建孤立的NQP没有问题。我不知道如何建立npm链接，同时自动化的建立拉库多。

所有后端

我了解到ALL实际上是指moar、jvm和js后端。这是在运行命令时确认的。

perl Configure.pl --prefix=/usr --gen-moar --backends=ALL --relocatable

您可以在您的终端中看到以下内容：

/usr/bin/perl Configure.pl --prefix=/usr --make-install --git-protocol=https --relocatable --no-ignore-errors --silent-build --no-force-rebuild --backends=moar,jvm,js --gen-moar

它的依赖项将是

apt-get install gcc g++ \
        libc6-dev \
        libencode-perl \
        wget \
        libzstd-dev \
        default-jdk \
        nodejs \
        npm \
        make

如果通过解决上面的npm link问题可以成功地构建Javascript后端，我相信所有后端都可以构建：moar、jvm和javascript。

因此，这里留下的问题是如何在构建的同时建立npm链接。希望有人的专业帮助能解决这个问题。