Given the appended patch and a /gnu/store/ with this listing for ls -al /gnu/store/*gnunet* user@abyayala ~$ ls -al /gnu/store/*gnunet* -r--r--r-- 2 root root 5472 Jan 1 1970 /gnu/store/1nvz1zxmbqwxzs7q9i3r72laaa16r11r-gnunet-git-0.10.1-dev.drv -r--r--r-- 2 root root 6701 Jan 1 1970 /gnu/store/39rjzdskrcwyh23vlp3i9q7jw8356h71-gnunet-git-0.10.1-dev-guile-builder -r--r--r-- 2 root root 965 Jan 1 1970 /gnu/store/4bknrxkr8pp5r88s335q3mdjdz54hi21-shepherd-gnunet.scm-builder -r--r--r-- 2 root root 1099 Jan 1 1970 /gnu/store/6763i0fkqfxr5sva4p8agp6hh0ywj142-gnunet-fuse-0.10.114b59076f-checkout.drv -r--r--r-- 2 root root 855 Jan 1 1970 /gnu/store/6rjj2z2nn3afsk2j5hx0d4bdgbwgrmqb-shepherd-gnunet.scm -r--r--r-- 2 root root 968 Jan 1 1970 /gnu/store/8q81adp7brldcm0lw1aagmfxv6by98zs-shepherd-gnunet.scm.drv -r--r--r-- 2 root root 5686 Jan 1 1970 /gnu/store/9ri5gj70xkzdvazqcgacc1hx2iyqk6xf-gnunetgf-0.10.114b59076f.drv -r--r--r-- 2 root root 6965 Jan 1 1970 /gnu/store/9vdpsmnmm0nln2h9sfijhfg0mrz9blap-gnunetgf-0.10.114b59076f-guile-builder -r--r--r-- 2 root root 2331 Jan 1 1970 /gnu/store/cjg5nid507lyk6my8vllax30sx8mwwbw-gnunet-git-0.10.1-dev.drv -rw------- 1 root root 0 Jun 10 17:06 /gnu/store/dzizvxdjnflz0kvhqwlw66v6fj8bzmkp-gnunet-fuse-0.10.114b59076f.lock -rw------- 1 root root 0 Jun 10 17:06 /gnu/store/g7yja5vm1yiidm3wsbvi88md2z4027d8-gnunet-fuse-0.10.114b59076f-debug.lock -r--r--r-- 2 root root 3656 Jan 1 1970 /gnu/store/iv13bsllx0vyv2km338ccwig13z5jiwk-gnunet-fuse-0.10.114b59076f-guile-builder -r--r--r-- 2 root root 6039 Jan 1 1970 /gnu/store/j7bilra2hl6zs1vrdxg91r81cfnv3xdw-gnunet-0.10.1-guile-builder -r--r--r-- 2 root root 1086 Jan 1 1970 /gnu/store/kpd6vrk5fmvmw57r8dissl4srg7lfgfg-gnunetg-0.10.114b59076f-checkout.drv -r--r--r-- 2 root root 3137 Jan 1 1970 /gnu/store/l0yqijdfca41lrp2jq7dai3k8dfzyj0m-gnunet-git-0.10.1-dev-guile-builder -r--r--r-- 2 root root 5472 Jan 1 1970 /gnu/store/lv9ig1fqzj7saviq53vspxz1h0ga8z5g-gnunet-git-0.10.1-dev.drv -r--r--r-- 2 root root 3202 Jan 1 1970 /gnu/store/qc0va2siswmc72bdk8xi4hm7dwz09xpy-gnunet-fuse-0.10.114b59076f.drv -r--r--r-- 2 root root 4776 Jan 1 1970 /gnu/store/raa51ajyif67pda2zy4gbig36fg5nj51-gnunet-0.10.1.drv -r--r--r-- 2 root root 2331 Jan 1 1970 /gnu/store/rkr8qr6mwcvqk9v4bxxkp8mr4kxar12d-gnunet-git-0.10.1-dev.drv -r--r--r-- 2 root root 1953 Jan 1 1970 /gnu/store/rz2h32dmc05ds811rr6hvzvinrymycg0-gnunet-0.10.1.drv -r--r--r-- 2 root root 2669 Jan 1 1970 /gnu/store/vkmjfhazk1a8r8mn7yclff1hfh2h0qvh-gnunet-0.10.1-guile-builder -r--r--r-- 2 root root 728 Jan 1 1970 /gnu/store/wvw5xf3nx5gwpmadn0d8v6bns5qg1gv0-gnunet-0.10.1.tar.gz.drv -r--r--r-- 2 root root 3137 Jan 1 1970 /gnu/store/yfgq5l7dgv2zpdysp3ip26cd1gsiwch1-gnunet-git-0.10.1-dev-guile-builder -r--r--r-- 2 root root 6701 Jan 1 1970 /gnu/store/yifmj159v1s0k1i2pb27jbp37ym059av-gnunet-git-0.10.1-dev-guile-builder /gnu/store/01ja9wj2v48y5www5bhpmkx94wc4b553-gnunetgf-0.10.114b59076f: total 1648 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 16384 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/1nxassvd6321rzg3y6pv2l0cm4y8vpac-gnunet-git-0.10.1-dev: total 1644 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 12288 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/1rsp1g4kl67242wbv084dgwq75m6vbzs-gnunet-0.10.1: total 1644 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 12288 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/2bpd88g02nh7hisiz9a9pnza5f31abzl-gnunetg-0.10.114b59076f-checkout: total 1936 dr-xr-xr-x 9 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ -r--r--r-- 5 root root 93787 Jan 1 1970 ABOUT-NLS -r--r--r-- 4 root root 1519 Jan 1 1970 acinclude.m4 -r--r--r-- 4 root root 4268 Jan 1 1970 AUTHORS dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ -r-xr-xr-x 4 root root 57 Jan 1 1970 bootstrap -r--r--r-- 4 root root 137 Jan 1 1970 ChangeLog -r-xr-xr-x 4 root root 18442 Jan 1 1970 config.rpath -r--r--r-- 2 root root 53819 Jan 1 1970 configure.ac dr-xr-xr-x 10 root root 4096 Jan 1 1970 contrib/ -r--r--r-- 131 root root 35147 Jan 1 1970 COPYING -r--r--r-- 4 root root 1861 Jan 1 1970 default.nix dr-xr-xr-x 5 root root 4096 Jan 1 1970 doc/ -r--r--r-- 4 root root 388 Jan 1 1970 .gitignore -r--r--r-- 4 root root 2457 Jan 1 1970 gnunet-dev.nix -r--r--r-- 3 root root 6342 Jan 1 1970 guix-env.scm -r--r--r-- 4 root root 12553 Jan 1 1970 .indent.pro dr-xr-xr-x 2 root root 4096 Jan 1 1970 m4/ -r--r--r-- 4 root root 402 Jan 1 1970 Makefile.am -r--r--r-- 4 root root 15 Jan 1 1970 NEWS dr-xr-xr-x 2 root root 4096 Jan 1 1970 pkgconfig/ dr-xr-xr-x 2 root root 4096 Jan 1 1970 po/ -r-xr-xr-x 4 root root 670 Jan 1 1970 pre-commit -r--r--r-- 9 root root 12954 Jan 1 1970 README dr-xr-xr-x 67 root root 4096 Jan 1 1970 src/ /gnu/store/2vlvqqj614y9872wpv21b1b0lm2xijh9-gnunet-git-0.10.1-dev-debug: total 1624 dr-xr-xr-x 3 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 3 root root 4096 Jan 1 1970 lib/ /gnu/store/5my5mwhp69c1030n94xivi2xy3xgswgh-gnunet-git-0.10.1-dev-debug: total 1624 dr-xr-xr-x 3 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 3 root root 4096 Jan 1 1970 lib/ /gnu/store/5ngcg5j7m3ci6a209yxp6j3sxb78d1qr-gnunetgf-0.10.114b59076f-debug: total 1624 dr-xr-xr-x 3 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 3 root root 4096 Jan 1 1970 lib/ /gnu/store/733k6jww6rarknirfijadb64vbcfn0mg-gnunet: total 1940 dr-xr-xr-x 10 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ -r--r--r-- 5 root root 93787 Jan 1 1970 ABOUT-NLS -r--r--r-- 4 root root 1519 Jan 1 1970 acinclude.m4 -r--r--r-- 4 root root 4268 Jan 1 1970 AUTHORS dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ -r-xr-xr-x 4 root root 57 Jan 1 1970 bootstrap -r--r--r-- 4 root root 137 Jan 1 1970 ChangeLog -r-xr-xr-x 4 root root 18442 Jan 1 1970 config.rpath -r--r--r-- 3 root root 53869 Jan 1 1970 configure.ac dr-xr-xr-x 10 root root 4096 Jan 1 1970 contrib/ -r--r--r-- 131 root root 35147 Jan 1 1970 COPYING -r--r--r-- 4 root root 1861 Jan 1 1970 default.nix dr-xr-xr-x 5 root root 4096 Jan 1 1970 doc/ dr-xr-xr-x 8 root root 4096 Jan 1 1970 .git/ -r--r--r-- 4 root root 388 Jan 1 1970 .gitignore -r--r--r-- 4 root root 2457 Jan 1 1970 gnunet-dev.nix -r--r--r-- 2 root root 6325 Jan 1 1970 guix-env.scm -r--r--r-- 4 root root 12553 Jan 1 1970 .indent.pro dr-xr-xr-x 2 root root 4096 Jan 1 1970 m4/ -r--r--r-- 4 root root 402 Jan 1 1970 Makefile.am -r--r--r-- 4 root root 15 Jan 1 1970 NEWS dr-xr-xr-x 2 root root 4096 Jan 1 1970 pkgconfig/ dr-xr-xr-x 2 root root 4096 Jan 1 1970 po/ -r-xr-xr-x 4 root root 670 Jan 1 1970 pre-commit -r--r--r-- 9 root root 12954 Jan 1 1970 README dr-xr-xr-x 68 root root 4096 Jan 1 1970 src/ /gnu/store/97gqyjn57rg83l77khcxhsjiavjscbvs-gnunet-git-0.10.1-dev-debug: total 1624 dr-xr-xr-x 3 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 3 root root 4096 Jan 1 1970 lib/ /gnu/store/bhi3jsnaqmk6nddshd3053hviq34ldk7-gnunet-git-0.10.1-dev-debug: total 1624 dr-xr-xr-x 3 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 3 root root 4096 Jan 1 1970 lib/ /gnu/store/ddx65yxabg65ffqszag4k299hs3mpyy2-gnunet-git-0.10.1-dev: total 1644 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 12288 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/dj3vqzvc3xy1z2b7m5lsn8hfz78an1f3-gnunet-git-0.10.1-dev: total 1648 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 16384 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/ky615nyiq3zzsp164l4cxbx25n3sfnwh-gnunet-git-0.10.1-dev: total 1648 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 16384 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/nf0bn7dsnscp5rj7xc8jzjg7wnccwj22-gnunet-0.10.1: total 1644 dr-xr-xr-x 6 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ dr-xr-xr-x 3 root root 4096 Jan 1 1970 include/ dr-xr-xr-x 4 root root 12288 Jan 1 1970 lib/ dr-xr-xr-x 6 root root 4096 Jan 1 1970 share/ /gnu/store/nppnlwy5zywzrx0c0ixsj5xfcmfjfw90-gnunet: total 1936 dr-xr-xr-x 9 root root 4096 Jan 1 1970 ./ drwxrwxr-t 3944 root guixbuild 1650688 Jun 10 17:10 ../ -r--r--r-- 5 root root 93787 Jan 1 1970 ABOUT-NLS -r--r--r-- 4 root root 1519 Jan 1 1970 acinclude.m4 -r--r--r-- 4 root root 4268 Jan 1 1970 AUTHORS dr-xr-xr-x 2 root root 4096 Jan 1 1970 bin/ -r-xr-xr-x 4 root root 57 Jan 1 1970 bootstrap -r--r--r-- 4 root root 137 Jan 1 1970 ChangeLog -r-xr-xr-x 4 root root 18442 Jan 1 1970 config.rpath -r--r--r-- 3 root root 53869 Jan 1 1970 configure.ac dr-xr-xr-x 10 root root 4096 Jan 1 1970 contrib/ -r--r--r-- 131 root root 35147 Jan 1 1970 COPYING -r--r--r-- 4 root root 1861 Jan 1 1970 default.nix dr-xr-xr-x 5 root root 4096 Jan 1 1970 doc/ -r--r--r-- 4 root root 388 Jan 1 1970 .gitignore -r--r--r-- 4 root root 2457 Jan 1 1970 gnunet-dev.nix -r--r--r-- 3 root root 6342 Jan 1 1970 guix-env.scm -r--r--r-- 4 root root 12553 Jan 1 1970 .indent.pro dr-xr-xr-x 2 root root 4096 Jan 1 1970 m4/ -r--r--r-- 4 root root 402 Jan 1 1970 Makefile.am -r--r--r-- 4 root root 15 J gnunet-fuse 'picks' the first gnunet it finds in the /gnu/store/: checking for fuse.h... yes checking for GNUnet core... /gnu/store/01ja9wj2v48y5www5bhpmkx94wc4b553-gnunetgf-0.10.114b59076f checking for GNUnet util library in /gnu/store/01ja9wj2v48y5www5bhpmkx94wc4b553-gnunetgf-0.10.114b59076f... checking for gnunet/gnunet_util_lib.h... no configure: error: gnunet-fuse requires GNUnet phase `configure' failed after 2.0 seconds note: keeping build directory `/tmp/guix-build-gnunet-fuse-0.10.114b59076f.drv-0' builder for `/gnu/store/qc0va2siswmc72bdk8xi4hm7dwz09xpy-gnunet-fuse-0.10.114b59076f.drv' failed with exit code 1 @ build-failed /gnu/store/qc0va2siswmc72bdk8xi4hm7dwz09xpy-gnunet-fuse-0.10.114b59076f.drv - 1 builder for `/gnu/store/qc0va2siswmc72bdk8xi4hm7dwz09xpy-gnunet-fuse-0.10.114b59076f.drv' failed with exit code 1 guix build: error: build failed: build of `/gnu/store/qc0va2siswmc72bdk8xi4hm7dwz09xpy-gnunet-fuse-0.10.114b59076f.drv' failed It has to fail because I need to get the commit right (0.10.1 gnunet and 0.10.0 -fuse are not compatible). However the problem is that I do not understand why one of my alternative gnunet packages is picked up. They are in my GUIX_PACKAGE_PATH, you can clone them from the mirror at http://notabug.org/ng0/ng0-packages/ (if this url is wrong take a look at https://notabug.org/ng0/). What is happening here? -- ng0 OpenPG: A88C8ADD129828D7EAC02E52E22F9BBFEE348588