mingw cross-compiler is broken when invoked outside of nix #144126

bgamari · 2021-11-01T14:57:59Z

Describe the bug

Attempting to use pkgsCross.mingwW64.stdenv.cc to cross-compile a simple Hello World program fails with a linker error.

Steps To Reproduce

Steps to reproduce the behavior:

Write a simple C program, hi.c
nix run -f ~/nixpkgs pkgsCross.mingwW64.stdenv.cc -c x86_64-w64-mingw32-cc hi.c

Observe that it fails:

/nix/store/40hb0cp3xl4cr14zxdp8lr5kf9lb594w-x86_64-w64-mingw32-binutils-2.35.1/bin/x86_64-w64-mingw32-ld: cannot find -lmcfgthread
collect2: error: ld returned 1 exit status

Expected behavior

It should produce an executable

Additional context

Tested with nixpkgs from late September (7728136).

Notify maintainers

@Ericson2314, who introduced the mcfgthreads dependency in #73195

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

[user@system:~]$ nix-shell -p nix-info --run "nix-info -m"
output here

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:

The text was updated successfully, but these errors were encountered:

bgamari · 2021-11-01T15:00:35Z

With NIX_DEBUG=1 the compiler emits:

$ NIX_DEBUG=1 nix run -f ~/nixpkgs pkgsCross.mingwW64.stdenv.cc -c x86_64-w64-mingw32-cc hi.c
HARDENING: disabled flags: pie pic format stackprotector fortify strictoverflow
extra flags before to /nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/bin/x86_64-w64-mingw32-gcc:
  ''     
original flags to /nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/bin/x86_64-w64-mingw32-gcc:
  hi.c                                                                                        
extra flags after to /nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/bin/x86_64-w64-mingw32-gcc:
  -B/nix/store/kb99s91m3ah43bh785ana1h0anpy9a1y-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0-lib/x86_64-w64-mingw32/lib
  -B/nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib/                                                                                                      
  -idirafter                                                                                                                                                                                 
  /nix/store/1mmpln1vnzj7jhb4pj48aavgpbdfzlsx-mingw-w64-x86_64-w64-mingw32-9.0.0-dev/include
  -idirafter                                                                                                                                                                                 
  /nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/lib/gcc/x86_64-w64-mingw32/10.3.0/include-fixed
  -B/nix/store/ns64vr3cx6hfxz03r49749md22z4pp55-x86_64-w64-mingw32-stage-final-gcc-debug-wrapper-10.3.0/bin/                                                               
  -L/nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib                                                                                                       
  -L/nix/store/kb99s91m3ah43bh785ana1h0anpy9a1y-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0-lib/x86_64-w64-mingw32/lib
HARDENING: disabled flags: relro pie bindnow
extra flags before to /nix/store/40hb0cp3xl4cr14zxdp8lr5kf9lb594w-x86_64-w64-mingw32-binutils-2.35.1/bin/x86_64-w64-mingw32-ld:
  ''      
original flags to /nix/store/40hb0cp3xl4cr14zxdp8lr5kf9lb594w-x86_64-w64-mingw32-binutils-2.35.1/bin/x86_64-w64-mingw32-ld:                                                                  
  -plugin  
  /nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/libexec/gcc/x86_64-w64-mingw32/10.3.0/liblto_plugin.so                                         
  -plugin-opt=/nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/libexec/gcc/x86_64-w64-mingw32/10.3.0/lto-wrapper                                  
  -plugin-opt=-fresolution=/tmp/ccJ4R7Gd.res
  -plugin-opt=-pass-through=-lmingw32
  -plugin-opt=-pass-through=-lgcc
  -plugin-opt=-pass-through=-lgcc_eh
  -plugin-opt=-pass-through=-lmoldname
  -plugin-opt=-pass-through=-lmingwex
  -plugin-opt=-pass-through=-lmsvcrt
  -plugin-opt=-pass-through=-lmcfgthread
  -plugin-opt=-pass-through=-ladvapi32
  -plugin-opt=-pass-through=-lshell32
  -plugin-opt=-pass-through=-luser32                                                          
  -plugin-opt=-pass-through=-lkernel32                                                                                                                                                       
  -plugin-opt=-pass-through=-lmingw32
  -plugin-opt=-pass-through=-lgcc                                                                                                                                                            
  -plugin-opt=-pass-through=-lgcc_eh      
  -plugin-opt=-pass-through=-lmoldname  
  -plugin-opt=-pass-through=-lmingwex                                                                                                                                                        
  -plugin-opt=-pass-through=-lmsvcrt                                                          
  -m                                                                                                                                                                                         
  i386pep
  -Bdynamic                                                                                                                                                                                  
  /nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib/crt2.o   
  /nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib/crtbegin.o                                             
  -L/nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib                                                                                                       
  -L/nix/store/kb99s91m3ah43bh785ana1h0anpy9a1y-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0-lib/x86_64-w64-mingw32/lib                                                                   
  -L/nix/store/kb99s91m3ah43bh785ana1h0anpy9a1y-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0-lib/x86_64-w64-mingw32/lib                                                                   
  -L/nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib      
  -L/nix/store/ns64vr3cx6hfxz03r49749md22z4pp55-x86_64-w64-mingw32-stage-final-gcc-debug-wrapper-10.3.0/bin                                                                                  
  -L/nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/lib/gcc/x86_64-w64-mingw32/10.3.0            
  -L/nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/lib/../lib
  -L/nix/store/pwyviik8vc54mf1gdbh4gi0l4qw8snmw-x86_64-w64-mingw32-stage-final-gcc-debug-10.3.0/lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/lib                         
  /tmp/ccxjax6G.o                                                                                                                                                                            
  -lmingw32                                 
  -lgcc                                                                                                                                                                                      
  -lgcc_eh
  -lmoldname                                                                                                                                                                                 
  -lmingwex
  -lmsvcrt                                                                                                                                                                                   
  -lmcfgthread                                                                                                                                                                               
  -ladvapi32                                
  -lshell32                          
  -luser32                       
  -lkernel32                        
  -lmingw32                           
  -lgcc                              
  -lgcc_eh                          
  -lmoldname                            
  -lmingwex                           
  -lmsvcrt                           
  /nix/store/l2miwdlhsb80yzv6ghplcp3qc8c2ikp4-mingw-w64-x86_64-w64-mingw32-9.0.0/lib/crtend.o 
extra flags after to /nix/store/40hb0cp3xl4cr14zxdp8lr5kf9lb594w-x86_64-w64-mingw32-binutils-2.35.1/bin/x86_64-w64-mingw32-ld:                                                               
  ''                                 
/nix/store/40hb0cp3xl4cr14zxdp8lr5kf9lb594w-x86_64-w64-mingw32-binutils-2.35.1/bin/x86_64-w64-mingw32-ld: cannot find -lmcfgthread                                                           
collect2: error: ld returned 1 exit status

bgamari · 2021-11-01T15:12:59Z

The relevant flags do appear to be set correctly:

$ nix repl ~/nixpkgs
nix-repl> pkgsCross.mingwW64.stdenv.cc.cc.EXTRA_LDFLAGS_FOR_TARGET
[ "-Wl,-L/nix/store/5jvi65bynl0zmkcwmqi5xqw9rmi9h82w-mingw-w64-x86_64-w64-mingw32-9.0.0/lib" "-Wl,-rpath,/nix/store/5jvi65bynl0zmkcwmqi5xqw9rmi9h82w-mingw-w64-x86_64-w64-mingw32-9.0.0/lib" "-Wl,-rpath-link,/nix/store/5jvi65bynl0zmkcwmqi5xqw9rmi9h82w-mingw-w64-x86_64-w64-mingw32-9.0.0/lib" "-Wl,-L/nix/store/y2rhkkspqcbpmjald1sf1p23vhnliraf-mcfgthreads-x86_64-w64-mingw32-git/lib" "-Wl,-rpath,/nix/store/y2rhkkspqcbpmjald1sf1p23vhnliraf-mcfgthreads-x86_64-w64-mingw32-git/lib" "-Wl,-rpath-link,/nix/store/y2rhkkspqcbpmjald1sf1p23vhnliraf-mcfgthreads-x86_64-w64-mingw32-git/lib" ]

nix-repl> pkgsCross.mingwW64.stdenv.cc.cc.depsTargetTarget         
[ «derivation /nix/store/4mfk2hzwjpk7yv632j5di63bxhm4qrcn-mcfgthreads-x86_64-w64-mingw32-git.drv» ]

However, I don't understand how these flags could possibly apply at cc's runtime; they appear to only be respected by gcc's builder.sh.

bgamari · 2021-11-01T15:47:48Z

It appears that the problem is that some bit of state is set by gcc's setupHook:

$ nix-shell -A pkgsCross.mingwW64.hello
echo 'int main(void) {}' | NIX_DEBUG=0 $CC -x c -

appears to work.

This seems quite unfortunate and is IMHO this a sign of an abuse of setupHooks as it should always be possible to nix run a toolchain's executables and have something vaguely sensible happen as a result. These paths really should be set by the wrapper if at all possible.

stale · 2022-04-30T23:24:08Z

I marked this as stale due to inactivity. → More info

bgamari · 2022-11-16T18:56:34Z

This is still a problem.

zopsicle · 2023-05-21T11:34:24Z

The dependency on MCF Gthread is not only a problem with MinGW itself, but also with programs built using MinGW that link with ${pkgsCross.mingwW64.buildPackages.gcc.cc}/x86_64-w64-mingw32/lib/libstdc++.a. They need to be run with mcfgthread-12.dll in WINEPATH otherwise they won’t work.

W1M0R · 2024-05-26T18:53:56Z

This is also a problem when cross-compiling on Linux using mingw64 and golang (cgo).

I'm using the following nixpkgs revision:

    "nixpkgs": {
        "branch": "nixpkgs-unstable",
        "description": "Nix Packages collection",
        "homepage": "",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "3305b2b25e4ae4baee872346eae133cf6f611783",
        "sha256": "13zs6sjkpg081l9vvlhn9d59z6spxzjrv5kmh6fxza55ax2zjm6j",
        "type": "tarball",
        "url": "https://github.com/NixOS/nixpkgs/archive/3305b2b25e4ae4baee872346eae133cf6f611783.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    },

I'm on gcc (GCC) 13.2.0.

My shell.nix file is:

{ 
  pkgs ? import ./nixpkgs.nix {
    crossSystem = {
      config = "x86_64-w64-mingw32";
      libc = "msvcrt";
    };
  }, 
  ... 
}:

pkgs.callPackage ({ 
    mkShell, 
    go, 
    nodejs_22, 
    windows, 
    pkg-config,
    go-task
  }: 

mkShell rec {

 
  nativeBuildInputs = [ 
    go 
    go-task
    nodejs_22
    pkg-config
  ];

 
  buildInputs = [ 
    windows.mingw_w64_headers 
    windows.mcfgthreads
  ];


  GOPATH = "";
  GOWORK = "off";
  GO111MODULE = "on";

   MINGW_W64_HEADERS_SRC = "${windows.mingw_w64_headers}";
  MINGW_W64_HEADERS_INCLUDE_DIR = "${MINGW_W64_HEADERS_SRC}/include";
  MINGW_W64_HEADERS_INCLUDE_EVENT_TOKEN_H = "${MINGW_W64_HEADERS_SRC}/include/eventtoken.h";

  MCFGTHREADS_SRC = "${windows.mcfgthreads}";
  MCFGTHREADS_LIB_DIR = "${windows.mcfgthreads}/lib";
  MCFGTHREADS_BIN_DIR = "${windows.mcfgthreads}/bin";
  MCFGTHREADS_INCLUDE_DIR = "${windows.mcfgthreads.dev}/include";

  XWEBVIEW_INCLUDE_DIR = builtins.toString ./src/xwebview/include;
  XWEBVIEW_INCLUDE_EVENT_TOKEN_H = builtins.toString ./src/xwebview/include/EventToken.h;
}) {}

The output of go env is:

GO111MODULE='on'
GOARCH='amd64'
GOBIN=''
GOCACHE='/home/user/.cache/go-build'
GOENV='/home/user/.config/go/env'
GOEXE='.exe'
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/home/user/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='windows'
GOPATH='/home/user/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/nix/store/1ck6bdqwjjcbkr1772gpi6ba7gkagmv7-go-1.22.3/share/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/nix/store/1ck6bdqwjjcbkr1772gpi6ba7gkagmv7-go-1.22.3/share/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.3'
GCCGO='gccgo'
GOAMD64='v1'
AR='x86_64-w64-mingw32-ar'
CC='x86_64-w64-mingw32-gcc'
CXX='x86_64-w64-mingw32-g++'
CGO_ENABLED='1'
GOMOD='/home/user/some-app/src/go.mod'
GOWORK='off'
CGO_CFLAGS='-frandom-seed=w372fcw6rb -isystem /nix/store/72m3szv59j74b12dmicmayvvlikh65qc-nodejs-22.2.0/include -isystem /nix/store/m1v13sqd0h9qfvynrj20aqx17d5chkin-gtk+3-3.24.41-dev/include -isystem /nix/store/p9lrs6dpfczcmms0dawplqqiiymmi97w-at-spi2-core-2.52.0-dev/include -isystem /nix/store/ckk16ns9yyy5lk0i1l4xmgghqw055yc2-dbus-1.14.10-dev/include -isystem /nix/store/49j9xzcwvhyb6vvmcdds8wfx54nszq83-expat-2.6.2-dev/include -isystem /nix/store/gdr1ghkakyjfdj8bc6n0virwllm4zpwz-glib-2.80.2-dev/include -isystem /nix/store/qj9byzfvh7dd61kk0aglj7cwqj1xqg6l-zlib-1.3.1-dev/include -isystem /nix/store/1xcnwyx7pdmdq66xdz20fbl2q0arjzrl-libffi-3.4.6-dev/include -isystem /nix/store/z14w63wj0gk97hr06l76d4s723ynhr2k-gettext-0.21.1/include -isystem /nix/store/r717wgkg911wp6spacgbg3w2dyzybvk7-glibc-iconv-2.39/include -isystem /nix/store/ljrz822j7b6db3jnmw1jiafgrm8armcw-cairo-1.18.0-dev/include -isystem /nix/store/s0mcb1kw1a4a9vdvcm8jpsdpn6bqkljm-fontconfig-2.15.0-dev/include -isystem /nix/store/a6yfhfzpmvz8v73796djqk811p4b6wan-freetype-2.13.2-dev/include -isystem /nix/store/5yqz7al0lv1jhkmbka3ghswqk5wlxvq5-bzip2-1.0.8-dev/include -isystem /nix/store/62fdhzhrs5smykxkxvjhw3y6yck2iih4-brotli-1.1.0-dev/include -isystem /nix/store/1rdmf4lap3f82pqdlmrgj1vjs08dk5xw-libpng-apng-1.6.43-dev/include -isystem /nix/store/cy880gzg1h6awfrq7024543vicphg908-pixman-0.43.4/include -isystem /nix/store/h967azc5nfhmxjvncbim3d0mxxb8g0ky-libXext-1.3.6-dev/include -isystem /nix/store/ny34a9migrcin09zwgbkr0ymx72mvlfg-xorgproto-2024.1/include -isystem /nix/store/l04bgrdvkbxq81v7yq53nkmr7f1aiav7-libXau-1.0.11-dev/include -isystem /nix/store/gf6p8dn78x0kscxjjm20zsvgm4rb08pm-libXrender-0.9.11-dev/include -isystem /nix/store/0gxrwp9xnzb5li8i7w3q7qmm0lm808qq-libX11-1.8.9-dev/include -isystem /nix/store/y28z5yg4v9f8vi6mq97qhr8pqmf1aijx-libxcb-1.17.0-dev/include -isystem /nix/store/v76jszybl11j7y8d3ix9jc7a0qznnnmr-fribidi-1.0.13-dev/include -isystem /nix/store/gx938f6w31a0alyqm81c6fp70br4xqqy-gdk-pixbuf-2.42.11-dev/include -isystem /nix/store/l81hdkwh1v709cjxwvdy208476d59488-libtiff-4.6.0-dev/include -isystem /nix/store/cm58jpx9hqzpg0g1azm1pnif0fifk310-libdeflate-1.20/include -isystem /nix/store/50f8859fp7m1kqg56aq5bw9wk4f51gcw-libjpeg-turbo-3.0.3-dev/include -isystem /nix/store/iwfarfldqql8cnhkcm5j9bhb4bbi5giy-xz-5.4.6-dev/include -isystem /nix/store/1s817f9iyszdjkivddb9kjj8xd2kgmbs-gsettings-desktop-schemas-46.0/include -isystem /nix/store/bpmym81g25wkclbl2a468p605zg99yka-libICE-1.1.1-dev/include -isystem /nix/store/bx0aljs94vz98kyzk59xhh6f8f85d5qy-libSM-1.2.4-dev/include -isystem /nix/store/4if9vv75zicybj3zphhmfcb3m1w7i7vh-libXcomposite-0.4.6-dev/include -isystem /nix/store/bg2c3pkvs3p9jfx1gkgq8rh31p3adf8a-libXfixes-6.0.1-dev/include -isystem /nix/store/n2g1zf9x7fya009lvyrlliqbrq2gvgd3-libXcursor-1.2.2-dev/include -isystem /nix/store/9hs5bp8yhwwqgl091b3lp0vwhdy34l10-libXdamage-1.1.6-dev/include -isystem /nix/store/s7wrx0r48c9bb9ilqsrflmbsjmb3cbcv-libXi-1.8.1-dev/include -isystem /nix/store/hgmad4drs0i6n6k3hx071lhhkwdgqwas-libXrandr-1.5.4-dev/include -isystem /nix/store/gqkw1wn30p059dd1qzip7iz8zf810rx6-pango-1.52.2-dev/include -isystem /nix/store/jngq41iw8s1lxmrfxj66jyq9b10a4grd-harfbuzz-8.4.0-dev/include -isystem /nix/store/jbb1dy7fxm43zl66v1hmm8749q0cl88k-graphite2-1.3.14-dev/include -isystem /nix/store/fgvf7jj541gw38ykdsmgvgha1p074p05-libXft-2.3.8-dev/include -isystem /nix/store/3iqksxyj1832ypz89996qw0sf3h6ygwm-libGL-1.7.0-dev/include -isystem /nix/store/smacbfb82wp7ncz2rwac68jd50qxr70a-libglvnd-1.7.0-dev/include -isystem /nix/store/di7vbvn478r2gx1wlfvxvv0ani8fy4qh-wayland-1.22.0-dev/include -isystem /nix/store/q7dc4c37k3mb8c1r2fb169sk211v96kk-libXinerama-1.1.5-dev/include -isystem /nix/store/j5p7ngwqkar1dmvi9sp274gldrh33ssf-cups-2.4.7-dev/include -isystem /nix/store/23d6cba79c6csq1q8hsyakwnvw57z2jl-gmp-with-cxx-6.3.0-dev/include -isystem /nix/store/jikmr73929yzpsrabh35yaaqzli66ys8-webkitgtk-2.44.2+abi=4.0-dev/include -isystem /nix/store/v10iyckj1pml8am4r6q0cjyb0gxqp0ci-libsoup-2.74.3-dev/include -isystem /nix/store/37979sqc7yw9ps0c4xl9jjkhq0w1hw8b-libxml2-2.12.7-dev/include -isystem /nix/store/72m3szv59j74b12dmicmayvvlikh65qc-nodejs-22.2.0/include -isystem /nix/store/m1v13sqd0h9qfvynrj20aqx17d5chkin-gtk+3-3.24.41-dev/include -isystem /nix/store/p9lrs6dpfczcmms0dawplqqiiymmi97w-at-spi2-core-2.52.0-dev/include -isystem /nix/store/ckk16ns9yyy5lk0i1l4xmgghqw055yc2-dbus-1.14.10-dev/include -isystem /nix/store/49j9xzcwvhyb6vvmcdds8wfx54nszq83-expat-2.6.2-dev/include -isystem /nix/store/gdr1ghkakyjfdj8bc6n0virwllm4zpwz-glib-2.80.2-dev/include -isystem /nix/store/qj9byzfvh7dd61kk0aglj7cwqj1xqg6l-zlib-1.3.1-dev/include -isystem /nix/store/1xcnwyx7pdmdq66xdz20fbl2q0arjzrl-libffi-3.4.6-dev/include -isystem /nix/store/z14w63wj0gk97hr06l76d4s723ynhr2k-gettext-0.21.1/include -isystem /nix/store/r717wgkg911wp6spacgbg3w2dyzybvk7-glibc-iconv-2.39/include -isystem /nix/store/ljrz822j7b6db3jnmw1jiafgrm8armcw-cairo-1.18.0-dev/include -isystem /nix/store/s0mcb1kw1a4a9vdvcm8jpsdpn6bqkljm-fontconfig-2.15.0-dev/include -isystem /nix/store/a6yfhfzpmvz8v73796djqk811p4b6wan-freetype-2.13.2-dev/include -isystem /nix/store/5yqz7al0lv1jhkmbka3ghswqk5wlxvq5-bzip2-1.0.8-dev/include -isystem /nix/store/62fdhzhrs5smykxkxvjhw3y6yck2iih4-brotli-1.1.0-dev/include -isystem /nix/store/1rdmf4lap3f82pqdlmrgj1vjs08dk5xw-libpng-apng-1.6.43-dev/include -isystem /nix/store/cy880gzg1h6awfrq7024543vicphg908-pixman-0.43.4/include -isystem /nix/store/h967azc5nfhmxjvncbim3d0mxxb8g0ky-libXext-1.3.6-dev/include -isystem /nix/store/ny34a9migrcin09zwgbkr0ymx72mvlfg-xorgproto-2024.1/include -isystem /nix/store/l04bgrdvkbxq81v7yq53nkmr7f1aiav7-libXau-1.0.11-dev/include -isystem /nix/store/gf6p8dn78x0kscxjjm20zsvgm4rb08pm-libXrender-0.9.11-dev/include -isystem /nix/store/0gxrwp9xnzb5li8i7w3q7qmm0lm808qq-libX11-1.8.9-dev/include -isystem /nix/store/y28z5yg4v9f8vi6mq97qhr8pqmf1aijx-libxcb-1.17.0-dev/include -isystem /nix/store/v76jszybl11j7y8d3ix9jc7a0qznnnmr-fribidi-1.0.13-dev/include -isystem /nix/store/gx938f6w31a0alyqm81c6fp70br4xqqy-gdk-pixbuf-2.42.11-dev/include -isystem /nix/store/l81hdkwh1v709cjxwvdy208476d59488-libtiff-4.6.0-dev/include -isystem /nix/store/cm58jpx9hqzpg0g1azm1pnif0fifk310-libdeflate-1.20/include -isystem /nix/store/50f8859fp7m1kqg56aq5bw9wk4f51gcw-libjpeg-turbo-3.0.3-dev/include -isystem /nix/store/iwfarfldqql8cnhkcm5j9bhb4bbi5giy-xz-5.4.6-dev/include -isystem /nix/store/1s817f9iyszdjkivddb9kjj8xd2kgmbs-gsettings-desktop-schemas-46.0/include -isystem /nix/store/bpmym81g25wkclbl2a468p605zg99yka-libICE-1.1.1-dev/include -isystem /nix/store/bx0aljs94vz98kyzk59xhh6f8f85d5qy-libSM-1.2.4-dev/include -isystem /nix/store/4if9vv75zicybj3zphhmfcb3m1w7i7vh-libXcomposite-0.4.6-dev/include -isystem /nix/store/bg2c3pkvs3p9jfx1gkgq8rh31p3adf8a-libXfixes-6.0.1-dev/include -isystem /nix/store/n2g1zf9x7fya009lvyrlliqbrq2gvgd3-libXcursor-1.2.2-dev/include -isystem /nix/store/9hs5bp8yhwwqgl091b3lp0vwhdy34l10-libXdamage-1.1.6-dev/include -isystem /nix/store/s7wrx0r48c9bb9ilqsrflmbsjmb3cbcv-libXi-1.8.1-dev/include -isystem /nix/store/hgmad4drs0i6n6k3hx071lhhkwdgqwas-libXrandr-1.5.4-dev/include -isystem /nix/store/gqkw1wn30p059dd1qzip7iz8zf810rx6-pango-1.52.2-dev/include -isystem /nix/store/jngq41iw8s1lxmrfxj66jyq9b10a4grd-harfbuzz-8.4.0-dev/include -isystem /nix/store/jbb1dy7fxm43zl66v1hmm8749q0cl88k-graphite2-1.3.14-dev/include -isystem /nix/store/fgvf7jj541gw38ykdsmgvgha1p074p05-libXft-2.3.8-dev/include -isystem /nix/store/3iqksxyj1832ypz89996qw0sf3h6ygwm-libGL-1.7.0-dev/include -isystem /nix/store/smacbfb82wp7ncz2rwac68jd50qxr70a-libglvnd-1.7.0-dev/include -isystem /nix/store/di7vbvn478r2gx1wlfvxvv0ani8fy4qh-wayland-1.22.0-dev/include -isystem /nix/store/q7dc4c37k3mb8c1r2fb169sk211v96kk-libXinerama-1.1.5-dev/include -isystem /nix/store/j5p7ngwqkar1dmvi9sp274gldrh33ssf-cups-2.4.7-dev/include -isystem /nix/store/23d6cba79c6csq1q8hsyakwnvw57z2jl-gmp-with-cxx-6.3.0-dev/include -isystem /nix/store/jikmr73929yzpsrabh35yaaqzli66ys8-webkitgtk-2.44.2+abi=4.0-dev/include -isystem /nix/store/v10iyckj1pml8am4r6q0cjyb0gxqp0ci-libsoup-2.74.3-dev/include -isystem /nix/store/37979sqc7yw9ps0c4xl9jjkhq0w1hw8b-libxml2-2.12.7-dev/include -frandom-seed=6dblp6sqb9 -isystem /nix/store/ghksnwa980zybz0rdrl547007m2cjigf-mcfgthread-x86_64-w64-mingw32-1.6.1-dev/include -isystem /nix/store/23hp6zlr2r7bllqp40x2r8ydf5zy2l2z-mingw-w64-x86_64-w64-mingw32-11.0.1-headers/include -isystem /nix/store/ghksnwa980zybz0rdrl547007m2cjigf-mcfgthread-x86_64-w64-mingw32-1.6.1-dev/include -I/home/user/some-app/src/xwebview/include'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-frandom-seed=w372fcw6rb -isystem /nix/store/72m3szv59j74b12dmicmayvvlikh65qc-nodejs-22.2.0/include -isystem /nix/store/m1v13sqd0h9qfvynrj20aqx17d5chkin-gtk+3-3.24.41-dev/include -isystem /nix/store/p9lrs6dpfczcmms0dawplqqiiymmi97w-at-spi2-core-2.52.0-dev/include -isystem /nix/store/ckk16ns9yyy5lk0i1l4xmgghqw055yc2-dbus-1.14.10-dev/include -isystem /nix/store/49j9xzcwvhyb6vvmcdds8wfx54nszq83-expat-2.6.2-dev/include -isystem /nix/store/gdr1ghkakyjfdj8bc6n0virwllm4zpwz-glib-2.80.2-dev/include -isystem /nix/store/qj9byzfvh7dd61kk0aglj7cwqj1xqg6l-zlib-1.3.1-dev/include -isystem /nix/store/1xcnwyx7pdmdq66xdz20fbl2q0arjzrl-libffi-3.4.6-dev/include -isystem /nix/store/z14w63wj0gk97hr06l76d4s723ynhr2k-gettext-0.21.1/include -isystem /nix/store/r717wgkg911wp6spacgbg3w2dyzybvk7-glibc-iconv-2.39/include -isystem /nix/store/ljrz822j7b6db3jnmw1jiafgrm8armcw-cairo-1.18.0-dev/include -isystem /nix/store/s0mcb1kw1a4a9vdvcm8jpsdpn6bqkljm-fontconfig-2.15.0-dev/include -isystem /nix/store/a6yfhfzpmvz8v73796djqk811p4b6wan-freetype-2.13.2-dev/include -isystem /nix/store/5yqz7al0lv1jhkmbka3ghswqk5wlxvq5-bzip2-1.0.8-dev/include -isystem /nix/store/62fdhzhrs5smykxkxvjhw3y6yck2iih4-brotli-1.1.0-dev/include -isystem /nix/store/1rdmf4lap3f82pqdlmrgj1vjs08dk5xw-libpng-apng-1.6.43-dev/include -isystem /nix/store/cy880gzg1h6awfrq7024543vicphg908-pixman-0.43.4/include -isystem /nix/store/h967azc5nfhmxjvncbim3d0mxxb8g0ky-libXext-1.3.6-dev/include -isystem /nix/store/ny34a9migrcin09zwgbkr0ymx72mvlfg-xorgproto-2024.1/include -isystem /nix/store/l04bgrdvkbxq81v7yq53nkmr7f1aiav7-libXau-1.0.11-dev/include -isystem /nix/store/gf6p8dn78x0kscxjjm20zsvgm4rb08pm-libXrender-0.9.11-dev/include -isystem /nix/store/0gxrwp9xnzb5li8i7w3q7qmm0lm808qq-libX11-1.8.9-dev/include -isystem /nix/store/y28z5yg4v9f8vi6mq97qhr8pqmf1aijx-libxcb-1.17.0-dev/include -isystem /nix/store/v76jszybl11j7y8d3ix9jc7a0qznnnmr-fribidi-1.0.13-dev/include -isystem /nix/store/gx938f6w31a0alyqm81c6fp70br4xqqy-gdk-pixbuf-2.42.11-dev/include -isystem /nix/store/l81hdkwh1v709cjxwvdy208476d59488-libtiff-4.6.0-dev/include -isystem /nix/store/cm58jpx9hqzpg0g1azm1pnif0fifk310-libdeflate-1.20/include -isystem /nix/store/50f8859fp7m1kqg56aq5bw9wk4f51gcw-libjpeg-turbo-3.0.3-dev/include -isystem /nix/store/iwfarfldqql8cnhkcm5j9bhb4bbi5giy-xz-5.4.6-dev/include -isystem /nix/store/1s817f9iyszdjkivddb9kjj8xd2kgmbs-gsettings-desktop-schemas-46.0/include -isystem /nix/store/bpmym81g25wkclbl2a468p605zg99yka-libICE-1.1.1-dev/include -isystem /nix/store/bx0aljs94vz98kyzk59xhh6f8f85d5qy-libSM-1.2.4-dev/include -isystem /nix/store/4if9vv75zicybj3zphhmfcb3m1w7i7vh-libXcomposite-0.4.6-dev/include -isystem /nix/store/bg2c3pkvs3p9jfx1gkgq8rh31p3adf8a-libXfixes-6.0.1-dev/include -isystem /nix/store/n2g1zf9x7fya009lvyrlliqbrq2gvgd3-libXcursor-1.2.2-dev/include -isystem /nix/store/9hs5bp8yhwwqgl091b3lp0vwhdy34l10-libXdamage-1.1.6-dev/include -isystem /nix/store/s7wrx0r48c9bb9ilqsrflmbsjmb3cbcv-libXi-1.8.1-dev/include -isystem /nix/store/hgmad4drs0i6n6k3hx071lhhkwdgqwas-libXrandr-1.5.4-dev/include -isystem /nix/store/gqkw1wn30p059dd1qzip7iz8zf810rx6-pango-1.52.2-dev/include -isystem /nix/store/jngq41iw8s1lxmrfxj66jyq9b10a4grd-harfbuzz-8.4.0-dev/include -isystem /nix/store/jbb1dy7fxm43zl66v1hmm8749q0cl88k-graphite2-1.3.14-dev/include -isystem /nix/store/fgvf7jj541gw38ykdsmgvgha1p074p05-libXft-2.3.8-dev/include -isystem /nix/store/3iqksxyj1832ypz89996qw0sf3h6ygwm-libGL-1.7.0-dev/include -isystem /nix/store/smacbfb82wp7ncz2rwac68jd50qxr70a-libglvnd-1.7.0-dev/include -isystem /nix/store/di7vbvn478r2gx1wlfvxvv0ani8fy4qh-wayland-1.22.0-dev/include -isystem /nix/store/q7dc4c37k3mb8c1r2fb169sk211v96kk-libXinerama-1.1.5-dev/include -isystem /nix/store/j5p7ngwqkar1dmvi9sp274gldrh33ssf-cups-2.4.7-dev/include -isystem /nix/store/23d6cba79c6csq1q8hsyakwnvw57z2jl-gmp-with-cxx-6.3.0-dev/include -isystem /nix/store/jikmr73929yzpsrabh35yaaqzli66ys8-webkitgtk-2.44.2+abi=4.0-dev/include -isystem /nix/store/v10iyckj1pml8am4r6q0cjyb0gxqp0ci-libsoup-2.74.3-dev/include -isystem /nix/store/37979sqc7yw9ps0c4xl9jjkhq0w1hw8b-libxml2-2.12.7-dev/include -isystem /nix/store/72m3szv59j74b12dmicmayvvlikh65qc-nodejs-22.2.0/include -isystem /nix/store/m1v13sqd0h9qfvynrj20aqx17d5chkin-gtk+3-3.24.41-dev/include -isystem /nix/store/p9lrs6dpfczcmms0dawplqqiiymmi97w-at-spi2-core-2.52.0-dev/include -isystem /nix/store/ckk16ns9yyy5lk0i1l4xmgghqw055yc2-dbus-1.14.10-dev/include -isystem /nix/store/49j9xzcwvhyb6vvmcdds8wfx54nszq83-expat-2.6.2-dev/include -isystem /nix/store/gdr1ghkakyjfdj8bc6n0virwllm4zpwz-glib-2.80.2-dev/include -isystem /nix/store/qj9byzfvh7dd61kk0aglj7cwqj1xqg6l-zlib-1.3.1-dev/include -isystem /nix/store/1xcnwyx7pdmdq66xdz20fbl2q0arjzrl-libffi-3.4.6-dev/include -isystem /nix/store/z14w63wj0gk97hr06l76d4s723ynhr2k-gettext-0.21.1/include -isystem /nix/store/r717wgkg911wp6spacgbg3w2dyzybvk7-glibc-iconv-2.39/include -isystem /nix/store/ljrz822j7b6db3jnmw1jiafgrm8armcw-cairo-1.18.0-dev/include -isystem /nix/store/s0mcb1kw1a4a9vdvcm8jpsdpn6bqkljm-fontconfig-2.15.0-dev/include -isystem /nix/store/a6yfhfzpmvz8v73796djqk811p4b6wan-freetype-2.13.2-dev/include -isystem /nix/store/5yqz7al0lv1jhkmbka3ghswqk5wlxvq5-bzip2-1.0.8-dev/include -isystem /nix/store/62fdhzhrs5smykxkxvjhw3y6yck2iih4-brotli-1.1.0-dev/include -isystem /nix/store/1rdmf4lap3f82pqdlmrgj1vjs08dk5xw-libpng-apng-1.6.43-dev/include -isystem /nix/store/cy880gzg1h6awfrq7024543vicphg908-pixman-0.43.4/include -isystem /nix/store/h967azc5nfhmxjvncbim3d0mxxb8g0ky-libXext-1.3.6-dev/include -isystem /nix/store/ny34a9migrcin09zwgbkr0ymx72mvlfg-xorgproto-2024.1/include -isystem /nix/store/l04bgrdvkbxq81v7yq53nkmr7f1aiav7-libXau-1.0.11-dev/include -isystem /nix/store/gf6p8dn78x0kscxjjm20zsvgm4rb08pm-libXrender-0.9.11-dev/include -isystem /nix/store/0gxrwp9xnzb5li8i7w3q7qmm0lm808qq-libX11-1.8.9-dev/include -isystem /nix/store/y28z5yg4v9f8vi6mq97qhr8pqmf1aijx-libxcb-1.17.0-dev/include -isystem /nix/store/v76jszybl11j7y8d3ix9jc7a0qznnnmr-fribidi-1.0.13-dev/include -isystem /nix/store/gx938f6w31a0alyqm81c6fp70br4xqqy-gdk-pixbuf-2.42.11-dev/include -isystem /nix/store/l81hdkwh1v709cjxwvdy208476d59488-libtiff-4.6.0-dev/include -isystem /nix/store/cm58jpx9hqzpg0g1azm1pnif0fifk310-libdeflate-1.20/include -isystem /nix/store/50f8859fp7m1kqg56aq5bw9wk4f51gcw-libjpeg-turbo-3.0.3-dev/include -isystem /nix/store/iwfarfldqql8cnhkcm5j9bhb4bbi5giy-xz-5.4.6-dev/include -isystem /nix/store/1s817f9iyszdjkivddb9kjj8xd2kgmbs-gsettings-desktop-schemas-46.0/include -isystem /nix/store/bpmym81g25wkclbl2a468p605zg99yka-libICE-1.1.1-dev/include -isystem /nix/store/bx0aljs94vz98kyzk59xhh6f8f85d5qy-libSM-1.2.4-dev/include -isystem /nix/store/4if9vv75zicybj3zphhmfcb3m1w7i7vh-libXcomposite-0.4.6-dev/include -isystem /nix/store/bg2c3pkvs3p9jfx1gkgq8rh31p3adf8a-libXfixes-6.0.1-dev/include -isystem /nix/store/n2g1zf9x7fya009lvyrlliqbrq2gvgd3-libXcursor-1.2.2-dev/include -isystem /nix/store/9hs5bp8yhwwqgl091b3lp0vwhdy34l10-libXdamage-1.1.6-dev/include -isystem /nix/store/s7wrx0r48c9bb9ilqsrflmbsjmb3cbcv-libXi-1.8.1-dev/include -isystem /nix/store/hgmad4drs0i6n6k3hx071lhhkwdgqwas-libXrandr-1.5.4-dev/include -isystem /nix/store/gqkw1wn30p059dd1qzip7iz8zf810rx6-pango-1.52.2-dev/include -isystem /nix/store/jngq41iw8s1lxmrfxj66jyq9b10a4grd-harfbuzz-8.4.0-dev/include -isystem /nix/store/jbb1dy7fxm43zl66v1hmm8749q0cl88k-graphite2-1.3.14-dev/include -isystem /nix/store/fgvf7jj541gw38ykdsmgvgha1p074p05-libXft-2.3.8-dev/include -isystem /nix/store/3iqksxyj1832ypz89996qw0sf3h6ygwm-libGL-1.7.0-dev/include -isystem /nix/store/smacbfb82wp7ncz2rwac68jd50qxr70a-libglvnd-1.7.0-dev/include -isystem /nix/store/di7vbvn478r2gx1wlfvxvv0ani8fy4qh-wayland-1.22.0-dev/include -isystem /nix/store/q7dc4c37k3mb8c1r2fb169sk211v96kk-libXinerama-1.1.5-dev/include -isystem /nix/store/j5p7ngwqkar1dmvi9sp274gldrh33ssf-cups-2.4.7-dev/include -isystem /nix/store/23d6cba79c6csq1q8hsyakwnvw57z2jl-gmp-with-cxx-6.3.0-dev/include -isystem /nix/store/jikmr73929yzpsrabh35yaaqzli66ys8-webkitgtk-2.44.2+abi=4.0-dev/include -isystem /nix/store/v10iyckj1pml8am4r6q0cjyb0gxqp0ci-libsoup-2.74.3-dev/include -isystem /nix/store/37979sqc7yw9ps0c4xl9jjkhq0w1hw8b-libxml2-2.12.7-dev/include -frandom-seed=6dblp6sqb9 -isystem /nix/store/ghksnwa980zybz0rdrl547007m2cjigf-mcfgthread-x86_64-w64-mingw32-1.6.1-dev/include -isystem /nix/store/23hp6zlr2r7bllqp40x2r8ydf5zy2l2z-mingw-w64-x86_64-w64-mingw32-11.0.1-headers/include -isystem /nix/store/ghksnwa980zybz0rdrl547007m2cjigf-mcfgthread-x86_64-w64-mingw32-1.6.1-dev/include -I/home/user/some-app/src/xwebview/include'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-L/nix/store/0bm4z6dh3v6nnr539xzsak0pn4wccb5l-expat-2.6.2/lib -L/nix/store/jd41k79l3nxq4b7b7yvc0kmcjd3lq7sa-dbus-1.14.10-lib/lib -L/nix/store/lv6nackqis28gg7l2ic43f6nk52hb39g-zlib-1.3.1/lib -L/nix/store/kbg5m7fyi1w23fyfmxjhhzcbd577rpg0-libffi-3.4.6/lib -L/nix/store/z14w63wj0gk97hr06l76d4s723ynhr2k-gettext-0.21.1/lib -L/nix/store/c2v6ycn0sjcpx9ww8x7j4ima6xnpssry-glib-2.80.2/lib -L/nix/store/6rigmq2ycbpgywmq9jjyhdr6vs8k8h8x-at-spi2-core-2.52.0/lib -L/nix/store/xwcf1rw3ackqp2vxms9myf9jq2ny6ynv-bzip2-1.0.8/lib -L/nix/store/jpjmh2325b6k3svvsmhj57wqlph9srdx-brotli-1.1.0-lib/lib -L/nix/store/55kivg8damd3y2c5k7286nvckw8pb2xf-libpng-apng-1.6.43/lib -L/nix/store/c9n99v77q5wrk7dxr4xi16bn1l4cglly-freetype-2.13.2/lib -L/nix/store/azbphnp68h4fkm0fsbird88bn76ggjsh-fontconfig-2.15.0-lib/lib -L/nix/store/cy880gzg1h6awfrq7024543vicphg908-pixman-0.43.4/lib -L/nix/store/8n7i76nx0k6b0zz752lvd3rv8gym39da-libXau-1.0.11/lib -L/nix/store/gbjygp4wz7b5rgayckmqfc00hy34dqfn-libXext-1.3.6/lib -L/nix/store/18kar5zwp16xyppfmigq92xzm1pkcqf1-libxcb-1.17.0/lib -L/nix/store/x9fw7rbdb34gq0f8q750kw344lbv9nk1-libX11-1.8.9/lib -L/nix/store/37bzg32wlrlknwbrsvjr4cxwmjh8dbzl-libXrender-0.9.11/lib -L/nix/store/b9f9c4ml2k6fg0pgc80d9y4a6byqflmp-cairo-1.18.0/lib -L/nix/store/dkg8ygd2z3b3n5fki62z8yii2bh8gv4x-fribidi-1.0.13/lib -L/nix/store/cm58jpx9hqzpg0g1azm1pnif0fifk310-libdeflate-1.20/lib -L/nix/store/pgj3xdvp8hj61wwkcw2k0wfbyr3ni64h-libjpeg-turbo-3.0.3/lib -L/nix/store/lphbn1va4i43fj7f3m9xskf9y86khzf3-xz-5.4.6/lib -L/nix/store/ic5bx78h039m3lfxxb6bl64qlbdxzzj9-libtiff-4.6.0/lib -L/nix/store/k2fmr13zj9rhkr29axhkaizjqn1llxaz-gdk-pixbuf-2.42.11/lib -L/nix/store/alryr2fk5z2n19s72q1yf0r71ych8jml-libICE-1.1.1/lib -L/nix/store/h8j225cl14p2yz55xa76rasfins4540w-libSM-1.2.4/lib -L/nix/store/1jjjvxa4v0qqjhlc9ig3j6ljdlskm2kr-libXfixes-6.0.1/lib -L/nix/store/y16mr4fhn8a8snp5177a6aznq42ci22c-libXcomposite-0.4.6/lib -L/nix/store/53vv8bkh0nvrfifac45dvhhcs3ybywjb-libXcursor-1.2.2/lib -L/nix/store/2y8irckx5v4fav7r7p9ghaz7rbwdmfb2-libXdamage-1.1.6/lib -L/nix/store/8dznd000dbv8kjvq93zwj7b5xf5chf6z-libXi-1.8.1/lib -L/nix/store/2rq584mkybbbvm1ciyams5s2lh8cdq32-libXrandr-1.5.4/lib -L/nix/store/11ms8j8iwn7d94x8q5syrss8hxh0w212-graphite2-1.3.14/lib -L/nix/store/d8sw2gwfjkhigipm6jiqsgknxpjzdzrz-harfbuzz-8.4.0/lib -L/nix/store/0kf3d2yigxk6xbbnc09x42c5as8xgjv8-libXft-2.3.8/lib -L/nix/store/7ammyzfh4i39dqxj3v0rxs21crrxp4nb-pango-1.52.2/lib -L/nix/store/dxp9ffxm50hj300xvzwhsllwgjwxvwpp-libGL-1.7.0/lib -L/nix/store/jz3vvf4nsyirb25rh9dbhksm4gq6wybb-libglvnd-1.7.0/lib -L/nix/store/7rnc20sb0h5zxqm5vims6mvi6gr3iy27-wayland-1.22.0/lib -L/nix/store/g1k5ak1wb3xpsbjarjkmql8zbd1nmym4-libXinerama-1.1.5/lib -L/nix/store/rx6nkd40819acppajq29g1hxa4d9r35f-gmp-with-cxx-6.3.0/lib -L/nix/store/0bp09zmflpq2igy8cm2b83dl0rpmyw90-cups-2.4.7-lib/lib -L/nix/store/6pzxmb82pda01y6zxncdmmp7lhafb75h-gtk+3-3.24.41/lib -L/nix/store/kf7fzax0av9him9m4zcmbqmihh5108wq-libxml2-2.12.7/lib -L/nix/store/1mldrzcgkfpzs56371gj7zpk9zx95bxk-libsoup-2.74.3/lib -L/nix/store/xcj4iy5rcipmigl8ibadwhgwki95gh95-webkitgtk-2.44.2+abi=4.0/lib -L/nix/store/0bm4z6dh3v6nnr539xzsak0pn4wccb5l-expat-2.6.2/lib -L/nix/store/jd41k79l3nxq4b7b7yvc0kmcjd3lq7sa-dbus-1.14.10-lib/lib -L/nix/store/lv6nackqis28gg7l2ic43f6nk52hb39g-zlib-1.3.1/lib -L/nix/store/kbg5m7fyi1w23fyfmxjhhzcbd577rpg0-libffi-3.4.6/lib -L/nix/store/z14w63wj0gk97hr06l76d4s723ynhr2k-gettext-0.21.1/lib -L/nix/store/c2v6ycn0sjcpx9ww8x7j4ima6xnpssry-glib-2.80.2/lib -L/nix/store/6rigmq2ycbpgywmq9jjyhdr6vs8k8h8x-at-spi2-core-2.52.0/lib -L/nix/store/xwcf1rw3ackqp2vxms9myf9jq2ny6ynv-bzip2-1.0.8/lib -L/nix/store/jpjmh2325b6k3svvsmhj57wqlph9srdx-brotli-1.1.0-lib/lib -L/nix/store/55kivg8damd3y2c5k7286nvckw8pb2xf-libpng-apng-1.6.43/lib -L/nix/store/c9n99v77q5wrk7dxr4xi16bn1l4cglly-freetype-2.13.2/lib -L/nix/store/azbphnp68h4fkm0fsbird88bn76ggjsh-fontconfig-2.15.0-lib/lib -L/nix/store/cy880gzg1h6awfrq7024543vicphg908-pixman-0.43.4/lib -L/nix/store/8n7i76nx0k6b0zz752lvd3rv8gym39da-libXau-1.0.11/lib -L/nix/store/gbjygp4wz7b5rgayckmqfc00hy34dqfn-libXext-1.3.6/lib -L/nix/store/18kar5zwp16xyppfmigq92xzm1pkcqf1-libxcb-1.17.0/lib -L/nix/store/x9fw7rbdb34gq0f8q750kw344lbv9nk1-libX11-1.8.9/lib -L/nix/store/37bzg32wlrlknwbrsvjr4cxwmjh8dbzl-libXrender-0.9.11/lib -L/nix/store/b9f9c4ml2k6fg0pgc80d9y4a6byqflmp-cairo-1.18.0/lib -L/nix/store/dkg8ygd2z3b3n5fki62z8yii2bh8gv4x-fribidi-1.0.13/lib -L/nix/store/cm58jpx9hqzpg0g1azm1pnif0fifk310-libdeflate-1.20/lib -L/nix/store/pgj3xdvp8hj61wwkcw2k0wfbyr3ni64h-libjpeg-turbo-3.0.3/lib -L/nix/store/lphbn1va4i43fj7f3m9xskf9y86khzf3-xz-5.4.6/lib -L/nix/store/ic5bx78h039m3lfxxb6bl64qlbdxzzj9-libtiff-4.6.0/lib -L/nix/store/k2fmr13zj9rhkr29axhkaizjqn1llxaz-gdk-pixbuf-2.42.11/lib -L/nix/store/alryr2fk5z2n19s72q1yf0r71ych8jml-libICE-1.1.1/lib -L/nix/store/h8j225cl14p2yz55xa76rasfins4540w-libSM-1.2.4/lib -L/nix/store/1jjjvxa4v0qqjhlc9ig3j6ljdlskm2kr-libXfixes-6.0.1/lib -L/nix/store/y16mr4fhn8a8snp5177a6aznq42ci22c-libXcomposite-0.4.6/lib -L/nix/store/53vv8bkh0nvrfifac45dvhhcs3ybywjb-libXcursor-1.2.2/lib -L/nix/store/2y8irckx5v4fav7r7p9ghaz7rbwdmfb2-libXdamage-1.1.6/lib -L/nix/store/8dznd000dbv8kjvq93zwj7b5xf5chf6z-libXi-1.8.1/lib -L/nix/store/2rq584mkybbbvm1ciyams5s2lh8cdq32-libXrandr-1.5.4/lib -L/nix/store/11ms8j8iwn7d94x8q5syrss8hxh0w212-graphite2-1.3.14/lib -L/nix/store/d8sw2gwfjkhigipm6jiqsgknxpjzdzrz-harfbuzz-8.4.0/lib -L/nix/store/0kf3d2yigxk6xbbnc09x42c5as8xgjv8-libXft-2.3.8/lib -L/nix/store/7ammyzfh4i39dqxj3v0rxs21crrxp4nb-pango-1.52.2/lib -L/nix/store/dxp9ffxm50hj300xvzwhsllwgjwxvwpp-libGL-1.7.0/lib -L/nix/store/jz3vvf4nsyirb25rh9dbhksm4gq6wybb-libglvnd-1.7.0/lib -L/nix/store/7rnc20sb0h5zxqm5vims6mvi6gr3iy27-wayland-1.22.0/lib -L/nix/store/g1k5ak1wb3xpsbjarjkmql8zbd1nmym4-libXinerama-1.1.5/lib -L/nix/store/rx6nkd40819acppajq29g1hxa4d9r35f-gmp-with-cxx-6.3.0/lib -L/nix/store/0bp09zmflpq2igy8cm2b83dl0rpmyw90-cups-2.4.7-lib/lib -L/nix/store/6pzxmb82pda01y6zxncdmmp7lhafb75h-gtk+3-3.24.41/lib -L/nix/store/kf7fzax0av9him9m4zcmbqmihh5108wq-libxml2-2.12.7/lib -L/nix/store/1mldrzcgkfpzs56371gj7zpk9zx95bxk-libsoup-2.74.3/lib -L/nix/store/xcj4iy5rcipmigl8ibadwhgwki95gh95-webkitgtk-2.44.2+abi=4.0/lib -L/nix/store/vvx68rgb5zjnw34as7pqz26nhnrx1wrp-mcfgthread-x86_64-w64-mingw32-1.6.1/lib -L/nix/store/vvx68rgb5zjnw34as7pqz26nhnrx1wrp-mcfgthread-x86_64-w64-mingw32-1.6.1/lib'
PKG_CONFIG='x86_64-w64-mingw32-pkg-config'
GOGCCFLAGS='-m64 -mthreads -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2817374850=/tmp/go-build -gno-record-gcc-switches'

Some related links:

pkgsCross.mingw32.stdenv.cc provides slightly incomplete linking environment: cannot find -lmcfgthread #156343
Update request: mcfgthreads git → 1.5-ga.2 #233099
mingw: mcfgthreads is broken #84754
cross-compiling for Windows on Darwin fails at mcfgthreads #97214
pkgsCross.mingwW64.windows.mcfgthreads: add gcc13 compatible version #236598
New GCC packaging -- separating compilers from runtime libraries #132340
mcfgthreads: 9570e5ca -> 10y2x3x6 #116069
MinGW: Enable C++ threads with mcfgthreads #73195
MinGW-W64 cross-compilation bug roundup #24984
gcc10: fix MinGW build & use local copy of mcfgthread patches #107978
gcc10: use gcc 9 patch of mcfgthread.patch to fix MinGW build #107918
MinGW: Enable C++ threads with mcfgthreads #73195 (comment)
https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/compilers/gcc/patches/update-mcfgthread-patches.sh
58b98e9
nixpkgs/pkgs/by-name/dx/dxvk/package.nix

Line 13 in f33f71f

useWin32ThreadModel =
nixpkgs/pkgs/development/compilers/go/1.22.nix

Line 13 in f33f71f

, threadsCross
nixpkgs/pkgs/development/compilers/gcc/common/configure-flags.nix

Line 95 in f33f71f

else if targetPlatform.isWindows then (threadsCross.model or "win32")
nixpkgs/pkgs/development/compilers/gcc/patches/default.nix

Line 176 in f33f71f

++ optional (atLeast6 && !atLeast13 && !withoutTargetLibc && targetPlatform.isMinGW && threadsCross.model == "mcf")
https://gcc-mcf.lhmouse.com/
https://github.com/lhmouse/MINGW-packages/tree/master/mingw-w64-gcc
https://github.com/DavidEGrayson/nixcrpkgs

There is also this, but I'm not sure what to make of it: https://www.scitepress.org/Papers/2021/102379/102379.pdf

@Ericson2314 @lhmouse @trofi @angerman @taktoa (Tagging you all since it looks like you made relevant contributions or have a good understanding of the context, but please ignore the message if I made a mistake). Do you have any insight into why this threading library is required (even for the simplest program that does not specifically use threads), and how to disable it. Ideally, I'd like to opt-in to mcfgthreads, or other alternatives (pthreads?), or even none (if that is a possibility). After some investigation, it looks like the threadsCross parameter can potentially be used to control (or disable) the mcfgthreads library, but I'm not sure how to go about setting that value.

trofi · 2024-05-26T20:35:08Z

cannot find -lmcfgthread

#156343 looks most relevant. TL;DR is: nixpkgs does not provide a working cc compiler outside nix-shell or build environment. mingw32 is most visible not to work, but the rest of the compilers also lack vital parts (like library lookup paths and other environment provided by setup hooks) to be safely usable.

trofi · 2024-05-26T20:40:47Z

-lmcfgthread gets added by gcc's own upstream driver the this threading model is selected at ./configure time with:

gcc/config/mingw/mingw32.h-#if TARGET_USING_MCFGTHREAD
gcc/config/mingw/mingw32.h:#define MCFGTHREAD_SPEC  " -lmcfgthread -lkernel32 -lntdll "
gcc/config/mingw/mingw32.h-#else
gcc/config/mingw/mingw32.h-#define MCFGTHREAD_SPEC  ""
gcc/config/mingw/mingw32.h-#endif

nixpkgs piece that enables it is hidden in pkgs/development/compilers/gcc/common/configure-flags.nix:

      "--enable-threads=${if targetPlatform.isUnix then "posix"
                          else if targetPlatform.isWindows then (threadsCross.model or "win32")
                          else "single"}"

You might want to try win32 or single threading model instead to avoid extra library dependency.

lhmouse · 2024-05-27T01:47:47Z

@W1M0R

There is also this, but I'm not sure what to make of it: https://www.scitepress.org/Papers/2021/102379/102379.pdf

I have been aware of it. The article is outdated. Since the 2022 refactor, binary files are distributed as GitHub Releases and are not committed to the repo.

A threading library may be required even when there appears to be no multithreading stuff. For example, initialization of local static objects with a constructor has to be thread-safe.

zeorin · 2024-06-26T13:01:06Z

You might want to try win32 or single threading model instead to avoid extra library dependency.

For anyone who, like I was, is not sure how to do this, I found the following snippet in dxvk's derivation:

  let
    useWin32ThreadModel =
      stdenv:
      overrideCC stdenv (
        stdenv.cc.override (old: {
          cc = old.cc.override {
            threadsCross = {
              model = "win32";
              package = null;
            };
          };
        })
      );

nixos-discourse · 2024-07-27T17:53:55Z

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/statically-compiling-a-windows-binary-with-mingw-that-needs-pthreads/49729/1

bgamari added the 0.kind: bug Something is broken label Nov 1, 2021

bgamari changed the title ~~mingw cross compilation is broken~~ mingw cross-compiler is broken when invoked outside of nix Nov 1, 2021

veprbl added the 6.topic: cross-compilation Building packages on a different platform than they will be used on label Nov 1, 2021

stale bot added the 2.status: stale https://github.com/NixOS/nixpkgs/blob/master/.github/STALE-BOT.md label Apr 30, 2022

stale bot removed the 2.status: stale https://github.com/NixOS/nixpkgs/blob/master/.github/STALE-BOT.md label Nov 16, 2022

W1M0R mentioned this issue Jun 3, 2024

pkgsCross.mingw32.stdenv.cc provides slightly incomplete linking environment: cannot find -lmcfgthread #156343

Open

ryanofsky mentioned this issue Sep 30, 2024

windows build failure chaincodelabs/libmultiprocess#114

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mingw cross-compiler is broken when invoked outside of nix #144126

mingw cross-compiler is broken when invoked outside of nix #144126

bgamari commented Nov 1, 2021 •

edited by Ericson2314

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mingw cross-compiler is broken when invoked outside of nix #144126

mingw cross-compiler is broken when invoked outside of nix #144126

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