Add 'guix graph'.

* guix/scripts/graph.scm, tests/graph.scm, tests/guix-graph.sh,
  doc/images/coreutils-bag-graph.dot, doc/images/coreutils-graph.dot: New
  files.
* Makefile.am (MODULES): Add guix/scripts/graph.scm.
  (SH_TESTS): Add tests/guix-graph.sh.
  (SCM_TESTS): Add tests/graph.scm.
* doc.am (DOT_FILES, DOT_VECTOR_GRAPHICS): New variables.
  (EXTRA_DIST): Use them.
  (dist_infoimage_DATA): Use $(DOT_FILES).
  (pdf-local, info-local, ps-local): Likewise.
* doc/guix.texi (Packages with Multiple Outputs): Add cross-reference to 'guix
  graph'.
  (Invoking guix gc): Likewise.
  (Invoking guix graph): New section.

2 files changed, 236 insertions, 0 deletions

diff --git a/doc/images/coreutils-bag-graph.dot b/doc/images/coreutils-bag-graph.dot
new file mode 100644
index 0000000000..c36268eeea
--- /dev/null
+++ b/doc/images/coreutils-bag-graph.dot
@@ -0,0 +1,213 @@
+digraph "Guix bag-emerged" {
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" [label = "coreutils-8.24", shape = box, fontname = Helvetica];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" [color = red];
+  "/gnu/store/rgbnfjyvx2i44x2iwi62jsk76rg5vfr0-coreutils-8.24.drv" -> "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" [label = "perl-5.16.1", shape = box, fontname = Helvetica];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [label = "tar-1.28", shape = box, fontname = Helvetica];
+  "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [label = "gzip-1.6", shape = box, fontname = Helvetica];
+  "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [label = "bzip2-1.0.6", shape = box, fontname = Helvetica];
+  "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [label = "xz-5.0.4", shape = box, fontname = Helvetica];
+  "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [label = "file-5.22", shape = box, fontname = Helvetica];
+  "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [label = "diffutils-3.3", shape = box, fontname = Helvetica];
+  "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [label = "patch-2.7.5", shape = box, fontname = Helvetica];
+  "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [label = "sed-4.2.2", shape = box, fontname = Helvetica];
+  "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [label = "findutils-4.4.2", shape = box, fontname = Helvetica];
+  "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [label = "gawk-4.1.3", shape = box, fontname = Helvetica];
+  "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [label = "grep-2.21", shape = box, fontname = Helvetica];
+  "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [label = "coreutils-8.24", shape = box, fontname = Helvetica];
+  "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [label = "make-4.1", shape = box, fontname = Helvetica];
+  "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [label = "bash-4.3.39", shape = box, fontname = Helvetica];
+  "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [label = "ld-wrapper-0", shape = box, fontname = Helvetica];
+  "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [label = "binutils-2.25", shape = box, fontname = Helvetica];
+  "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [label = "gcc-4.9.3", shape = box, fontname = Helvetica];
+  "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [label = "glibc-2.21", shape = box, fontname = Helvetica];
+  "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [label = "glibc-utf8-locales-2.21", shape = box, fontname = Helvetica];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" [label = "acl-2.2.52", shape = box, fontname = Helvetica];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/bx5ksjc77qy38p2y8xr5cph59kkh5aqc-acl-2.2.52.drv" -> "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" [label = "gettext-0.19.5", shape = box, fontname = Helvetica];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" -> "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" [label = "expat-2.1.0", shape = box, fontname = Helvetica];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/zv0yx4506q6k13vkl8k7pqnfirnlqplg-expat-2.1.0.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" [label = "sed-4.2.2", shape = box, fontname = Helvetica];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/fi3hvhhi6jfm7qmlxayrd551d3wxp115-sed-4.2.2.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" [label = "attr-2.4.46", shape = box, fontname = Helvetica];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/mw5q1c5flk83xwj7yvqv0mb3hi6xb316-gettext-0.19.5.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/ww221j42552c05xrrbjjz9av7w7r9s5x-attr-2.4.46.drv" -> "/gnu/store/1vx9x5ml5q6irf4pnjrlfgmhcislmg1n-perl-5.16.1.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" [label = "gmp-6.0.0a", shape = box, fontname = Helvetica];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/1jzdjkign6jjsanmfhzs45kngi9gw5k8-gmp-6.0.0a.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" [label = "m4-1.4.17", shape = box, fontname = Helvetica];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/7176h825gaw745sdkwkgh7jip9w26w8m-tar-1.28.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/86bbbaav5ilnr63cpihi9h03ila7cr1k-gzip-1.6.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/ab82abh8l2dr56j0s9z68v6i872dic45-bzip2-1.0.6.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/x9dji1ms9cj9vbl15bksci7w76zcwvkj-xz-5.0.4.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/l8712bh52742kzav8w11n97l0vzim838-file-5.22.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/52b3d4q4nyv0i0n1phnwms3xan38q8is-diffutils-3.3.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/vaksjdasfzhbj6jzc46fdglwy75y8ggs-patch-2.7.5.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/4dikg9vw3fnhvjx86wq5jlpaw58nfmbv-sed-4.2.2.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/6q81294lvwzwqwj3s5flhl2fap5ac1qf-findutils-4.4.2.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/0qzl2vj3fwz03m6a8v7yypqhb58b4408-gawk-4.1.3.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/0w9md4s7vasgi5jy1xvxnsg4a3s134a9-grep-2.21.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/ldxarpgn1f4xbghbw0vqibdbi5cv3snl-coreutils-8.24.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/j7h01h99vrcs8wr0xx997wl2ijqhrz9b-make-4.1.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/8ghhz8yi3m9d4s07r443106g4pffd8q2-bash-4.3.39.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/sx1s4j6p0sm66znaaizb9a4cfwy109zy-ld-wrapper-0.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/gj0jr0lz5siyn0ifq1vnksvfdcmd1gw7-binutils-2.25.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/a74b2jvm3vv405a9wkd0c2v47s17alyi-gcc-4.9.3.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/0b68fcwgd01v2mji5pyda5ag9amg7d10-glibc-2.21.drv" [color = red];
+  "/gnu/store/zsi7a1v45zq9qc7fzzw463q907mwqwwr-m4-1.4.17.drv" -> "/gnu/store/phkvp3cp8yqfqiv7i35j64lv671iv00x-glibc-utf8-locales-2.21.drv" [color = red];
+
+}
diff --git a/doc/images/coreutils-graph.dot b/doc/images/coreutils-graph.dot
new file mode 100644
index 0000000000..f9a08a83ed
--- /dev/null
+++ b/doc/images/coreutils-graph.dot
@@ -0,0 +1,23 @@
+digraph "Guix package" {
+  "50639808" [label = "coreutils-8.24", shape = box, fontname = Helvetica];
+  "50639808" -> "31984640" [color = red];
+  "50639808" -> "50641344" [color = red];
+  "50639808" -> "38428672" [color = red];
+  "31984640" [label = "perl-5.16.1", shape = box, fontname = Helvetica];
+  "50641344" [label = "acl-2.2.52", shape = box, fontname = Helvetica];
+  "50641344" -> "50641728" [color = red];
+  "50641344" -> "31984640" [color = red];
+  "50641344" -> "50640768" [color = red];
+  "50641344" -> "50641536" [color = red];
+  "50641728" [label = "gettext-0.19.5", shape = box, fontname = Helvetica];
+  "50641728" -> "50530368" [color = red];
+  "50530368" [label = "expat-2.1.0", shape = box, fontname = Helvetica];
+  "50640768" [label = "sed-4.2.2", shape = box, fontname = Helvetica];
+  "50641536" [label = "attr-2.4.46", shape = box, fontname = Helvetica];
+  "50641536" -> "50641728" [color = red];
+  "50641536" -> "31984640" [color = red];
+  "38428672" [label = "gmp-6.0.0a", shape = box, fontname = Helvetica];
+  "38428672" -> "38431168" [color = red];
+  "38431168" [label = "m4-1.4.17", shape = box, fontname = Helvetica];
+
+}