building Nix...
building the system configuration...
these derivations will be built:
  /nix/store/8hdfqfzfpckqrgjy3zwbppkfbdm5agi6-dwm-6.0.drv
  /nix/store/ikc0bp6v6pv5kvkdj0ii8akvvsg2kih7-system-path.drv
  /nix/store/0ql4aas6a7ac98b0fsf6mc996v584lpc-unit-polkit.service.drv
  /nix/store/2sdrn0s15qsaac5abry4q2x7isbf58k5-dbus-conf.drv
  /nix/store/f6i1f9z2165b6960s54qds3m03h4fkcw-system-crontab.drv
  /nix/store/lzmk6jzw05i354fl6zagrj5q7478k0ci-unit-script.drv
  /nix/store/hr4fwbq7ga36jmax8dmbvp01kjpgvkpm-unit-cron.service.drv
  /nix/store/v16hlss231vflmk3ndcnqw92nynrwnlr-unit-dbus.service.drv
  /nix/store/mfhj1mq800pmfwl43na8mv881n2k8m94-system-units.drv
  /nix/store/4vx24f7lwv2vldky89wa4b09d9h9dgk2-etc.drv
  /nix/store/7wscvkjb6n9y2g2dkkf34cp6vg0fa4m2-nixos-14.12.751.51c1157.drv
building path(s) ‘/nix/store/440zp6h985110sqf7va2kaab6kd5j6a4-dwm-6.0’
building /nix/store/440zp6h985110sqf7va2kaab6kd5j6a4-dwm-6.0
unpacking sources
unpacking source archive /nix/store/hx3bnp3r4sxkj6bz8d5z0vdyxh5s8r85-dwm-6.0.tar.gz
source root is dwm-6.0
patching sources
applying patch /nix/store/4pfgaj90ab5bs8vapq3haxdq2nry4zn8-dwm-6.0-pango.diff
patching file config.def.h
patching file config.mk
patching file dwm.c
configuring
no configure script, doing nothing
building
building options
dwm build options:
/bin/sh: pkg-config: command not found
CFLAGS   = -std=c99 -pedantic -Wall -Os -I. -I/usr/include -I/usr/X11R6/include  -DVERSION="6.0" -DXINERAMA
/bin/sh: pkg-config: command not found
LDFLAGS  = -s -L/usr/lib -lc -L/usr/X11R6/lib -lX11 -L/usr/X11R6/lib -lXinerama
CC       = cc
building config.h
creating config.h from config.def.h
building dwm.o
CC dwm.c
/bin/sh: pkg-config: command not found
dwm.c:39:25: fatal error: X11/Xft/Xft.h: No such file or directory
 #include <X11/Xft/Xft.h>
                         ^
compilation terminated.
make: *** [dwm.o] Error 1
builder for ‘/nix/store/8hdfqfzfpckqrgjy3zwbppkfbdm5agi6-dwm-6.0.drv’ failed with exit code 2
cannot build derivation ‘/nix/store/ikc0bp6v6pv5kvkdj0ii8akvvsg2kih7-system-path.drv’: 1 dependencies couldn't be built
cannot build derivation ‘/nix/store/7wscvkjb6n9y2g2dkkf34cp6vg0fa4m2-nixos-14.12.751.51c1157.drv’: 1 dependencies couldn't be built
error: build of ‘/nix/store/7wscvkjb6n9y2g2dkkf34cp6vg0fa4m2-nixos-14.12.751.51c1157.drv’ failed