Crystal: Static compile libraries

[Proximyst]

Reproducible code:

# file: src/test.cr
puts "aaa this is a test"

Command to compile:

$ crystal build src/test.cr --static

Error:

/usr/bin/ld: cannot find -lssl
/usr/bin/ld: cannot find -lcrypto
/usr/bin/ld: cannot find -lpcre
/usr/bin/ld: cannot find -lgc
/usr/bin/ld: cannot find -levent
collect2: error: ld returned 1 exit status

Packages:

[proximyst@proximyst:Git/test]$ pacman -Qs gc
local/gc 7.6.4-1
    A garbage collector for C and C++
[proximyst@proximyst:Git/test]$ pacman -Qs ssl
local/lib32-openssl 1:1.1.0.g-1
    The Open Source toolkit for Secure Sockets Layer and Transport Layer Security (32-bit)
local/openssl 1.1.0.g-1
    The Open Source toolkit for Secure Sockets Layer and Transport Layer Security
local/openssl-1.0 1.0.2.n-1
    The Open Source toolkit for Secure Sockets Layer and Transport Layer Security
[proximyst@proximyst:Git/test]$ pacman -Qs event
local/lib32-libevent 2.1.8-1
    An event notification library (32-bit)
local/libevent 2.1.8-1
    An event notification library
[proximyst@proximyst:Git/test]$ pacman -Qs pcre
local/lib32-pcre 8.41-1
    A library that implements Perl 5-style regular expressions (32-bit)
local/pcre 8.41-1
    A library that implements Perl 5-style regular expressions
local/pcre2 10.31-1
    A library that implements Perl 5-style regular expressions. 2nd version

Else:

I do acknowledge I do not have all the libraries, but the ones I have it should mark as existing. I'm quite sure I haven't missed out on anything..

[RX14]

Arch linux doesn't include static versions of libraries in packages by default.

[foi]

Hi! @RX14 how to install this static versions on arch linux? i'have compile by make command libevent, libgc, openssl, but they doesnt have .a files.

[jhass]

For most projects you need to explicitly enable building the static variant, usually via something like --enable-static in their configure scripts. The next cavehat then is that the linker prefers dynamic libraries over static ones if both are in its path.

[foi]

@jhass fedora 28 either doesn't have static libs

[root@tech4-fedora src]# sudo crystal build agentnnmd.cr --release --static
/usr/bin/ld: cannot find -lz
/usr/bin/ld: cannot find -lssl
/usr/bin/ld: cannot find -lcrypto
/usr/bin/ld: cannot find -lpcre
/usr/bin/ld: cannot find -lm
/usr/bin/ld: cannot find -lpthread
/usr/bin/ld: cannot find -levent
/usr/bin/ld: cannot find -lrt
/usr/bin/ld: cannot find -ldl
/usr/bin/ld: cannot find -lc
collect2: error: ld returned 1 exit status
Error: execution of command failed with code: 1: `cc "${@}" -o '/root/projects/monitor/agents/linux/agentnnmd-crystal/src/agentnnmd'  -rdynamic -static  -lz `command -v pkg-config > /dev/null && pkg-config --libs libssl || printf %s '-lssl -lcrypto'` `command -v pkg-config > /dev/null && pkg-config --libs libcrypto || printf %s '-lcrypto'` -lpcre -lm -lgc -lpthread /usr/share/crystal/src/ext/libcrystal.a -levent -lrt -ldl -L/usr/lib -L/usr/local/lib`
[root@tech4-fedora src]# hostnamectl
   Static hostname: tech4-fedora.domain.local
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 6177399b289e4a219f522270533e469f
           Boot ID: fff7dc162be342858492c3d78fa8a0f9
    Virtualization: oracle
  Operating System: Fedora 28 (Twenty Eight)
       CPE OS Name: cpe:/o:fedoraproject:fedora:28
            Kernel: Linux 4.16.2-300.fc28.x86_64
      Architecture: x86-64
[root@tech4-fedora src]# 

THANKS! I'll try it

@jhass a then tryng to build with --link-flags "-static -L/path/to/libevent" ? I consciously work with static compiling first time in my life, in golang all linking perform automatically

[j8r]

@foi I've made a Docker image for static compilation if you are interested: https://store.docker.com/community/images/jrei/crystal-alpine

[RX14]

Yeah, the only way to use --static is on alpine Linux.