perlPackages.X11XCB no longer builds. Holds back nixos-unstable.

[obadz]

Fails on d140dee for instance:

$ nix-build '<nixpkgs>' -A perlPackages.X11XCB
…
In file included from /nix/store/d13sw23db0sp2pgnxvc8v12nrj33b7d5-libxcb-1.12-dev/include/xcb/xcb.h:193:0,
                 from XCB.xs:4:
/nix/store/d13sw23db0sp2pgnxvc8v12nrj33b7d5-libxcb-1.12-dev/include/xcb/xproto.h:11887:1: note: declared here
 xcb_change_keyboard_control (xcb_connection_t *c,
 ^
Makefile:397: recipe for target 'XCB.o' failed
make: *** [XCB.o] Error 1
builder for ‘/nix/store/hxnk52xa2ldjsfd3qblm8cjy48cbl60x-perl-X11-XCB-0.14.drv’ failed with exit code 2
error: build of ‘/nix/store/hxnk52xa2ldjsfd3qblm8cjy48cbl60x-perl-X11-XCB-0.14.drv’ failed

Test failing:

$ nix-build '<nixos/release.nix>' -A tests.i3wm.x86_64-linux

Upgrading perlPackages.X11XCB to 0.15 _does not_ fix it:

diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index db1405f..00d0cc9 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -13981,10 +13981,10 @@ let self = _self // overrides; _self = with self; {
   };

   X11XCB = buildPerlPackage rec {
-    name = "X11-XCB-0.14";
+    name = "X11-XCB-0.15";
     src = fetchurl {
       url = "mirror://cpan/authors/id/M/MS/MSTPLBG/${name}.tar.gz";
-      sha256 = "11ff0a4nqbdj68mxdvyqdqvi573ha10vy67wpi7mklpxvlm011bn";
+      sha256 = "10fflr91bl2hi3maa0qirdf0ahqpdkn6j89waj6y0qcad53i0lm5";
     };
     AUTOMATED_TESTING = false;
     buildInputs = [

Reverting upgardes to libxcb (part of @vcunat's 69ed132) _does_ fix:

diff --git a/pkgs/servers/x11/xorg/default.nix b/pkgs/servers/x11/xorg/default.nix
index 16fa242..95085be 100644
--- a/pkgs/servers/x11/xorg/default.nix
+++ b/pkgs/servers/x11/xorg/default.nix
@@ -1041,11 +1041,11 @@ let
   }) // {inherit ;};

   libxcb = (mkDerivation "libxcb" {
-    name = "libxcb-1.12";
+    name = "libxcb-1.11.1";
     builder = ./builder.sh;
     src = fetchurl {
-      url = http://xcb.freedesktop.org/dist/libxcb-1.12.tar.bz2;
-      sha256 = "0nvv0la91cf8p5qqlb3r5xnmg1jn2wphn4fb5jfbr6byqsvv3psa";
+      url = http://xcb.freedesktop.org/dist/libxcb-1.11.1.tar.bz2;
+      sha256 = "0c4xyvdyx5adh8dzyhnrmvwwz24gri4z1czxmxqm63i0gmngs85p";
     };
     buildInputs = [pkgconfig libxslt libpthreadstubs python libXau xcbproto libXdmcp ];
     meta.platforms = stdenv.lib.platforms.unix;
@@ -1327,11 +1327,11 @@ let
   }) // {inherit ;};

   xcbproto = (mkDerivation "xcbproto" {
-    name = "xcb-proto-1.12";
+    name = "xcb-proto-1.11";
     builder = ./builder.sh;
     src = fetchurl {
-      url = http://xcb.freedesktop.org/dist/xcb-proto-1.12.tar.bz2;
-      sha256 = "01j91946q8f34l1mbvmmgvyc393sm28ym4lxlacpiav4qsjan8jr";
+      url = http://xcb.freedesktop.org/dist/xcb-proto-1.11.tar.bz2;
+      sha256 = "0bp3f53l9fy5x3mn1rkj1g81aiyzl90wacwvqdgy831aa3kfxb5l";
     };
     buildInputs = [pkgconfig python ];
     meta.platforms = stdenv.lib.platforms.unix;
@@ -1349,11 +1349,11 @@ let
   }) // {inherit gperf m4 libxcb xproto ;};

   xcbutilcursor = (mkDerivation "xcbutilcursor" {
-    name = "xcb-util-cursor-0.1.3";
+    name = "xcb-util-cursor-0.1.2";
     builder = ./builder.sh;
     src = fetchurl {
-      url = http://xcb.freedesktop.org/dist/xcb-util-cursor-0.1.3.tar.bz2;
-      sha256 = "0krr4rcw6r42cncinzvzzdqnmxk3nrgpnadyg2h8k9x10q3hm885";
+      url = http://xcb.freedesktop.org/dist/xcb-util-cursor-0.1.2.tar.bz2;
+      sha256 = "0fpv46zb7kz04qxwvpax4cpd2kd8yhsm2n0if1isniqdh5xkcrgd";
     };
     buildInputs = [pkgconfig gperf m4 libxcb xcbutilimage xcbutilrenderutil xproto ];
     meta.platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/servers/x11/xorg/extra.list b/pkgs/servers/x11/xorg/extra.list
index 56a7b1f..fc3068b 100644
--- a/pkgs/servers/x11/xorg/extra.list
+++ b/pkgs/servers/x11/xorg/extra.list
@@ -1,8 +1,8 @@
 http://xcb.freedesktop.org/dist/libpthread-stubs-0.3.tar.bz2
-http://xcb.freedesktop.org/dist/libxcb-1.12.tar.bz2
-http://xcb.freedesktop.org/dist/xcb-proto-1.12.tar.bz2
+http://xcb.freedesktop.org/dist/libxcb-1.11.1.tar.bz2
+http://xcb.freedesktop.org/dist/xcb-proto-1.11.tar.bz2
 http://xcb.freedesktop.org/dist/xcb-util-0.4.0.tar.bz2
-http://xcb.freedesktop.org/dist/xcb-util-cursor-0.1.3.tar.bz2
+http://xcb.freedesktop.org/dist/xcb-util-cursor-0.1.2.tar.bz2
 http://xcb.freedesktop.org/dist/xcb-util-image-0.4.0.tar.bz2
 http://xcb.freedesktop.org/dist/xcb-util-keysyms-0.4.0.tar.bz2
 http://xcb.freedesktop.org/dist/xcb-util-renderutil-0.3.9.tar.bz2

[vcunat]

I had tried to fix it by upgrading. The perl package apparently uses non-public functions. I had filed a bug on CPAN, though I don't know if that was a good place: https://rt.cpan.org/Public/Bug/Display.html?id=114732 In nixpkgs the only dependant is i3. We might resurrect old libxcb and keep a copy, I suppose.

[vcunat]

/cc @garbas, @modulistic: perhaps it's possible this perl package isn't too important for i3?

[vcunat]

BTW, this isn't the only problem blocking the unstable* channels from security update – container tests are also broken and there I have no clue about cause or solution. (EDIT: well I do suspect systemd update might be the commit causing it.)

[garbas]

i'll take a look at the morning ... might be that this perl package is not needed anymore.

[vcunat]

@garbas: the upstream maintainer committed a fix; see discussion at stapelberg/X11-XCB#1

[stapelberg]

X11::XCB 0.16 was just released with a fix.

[vcunat]

I tested also that i3 builds again.

[garbas]

tnx!