This patch makes the UUIDs in the XMP header optional, depending on the setting of the environment variable GS_GENERATE_UUIDS. If the environment variable GS_GENERATE_UUIDS is set to "0" or "no", it will not write out the Document UUID field and also will write the Instance ID field value as "". Upstream does not want to do this. See: https://bugs.ghostscript.com/show_bug.cgi?id=698208 diff -ur orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c aa/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c --- orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c 2017-07-09 23:30:28.960479189 +0200 +++ gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c 2017-07-10 01:04:12.252478276 +0200 @@ -617,7 +617,7 @@ return code; /* PDF/A XMP reference recommends setting UUID to empty. If not empty must be a URI */ - if (pdev->PDFA != 0) + if (pdev->PDFA != 0 || (getenv("GS_GENERATE_UUIDS") && (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") == 0 || strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") == 0))) instance_uuid[0] = 0x00; cre_date_time_len = pdf_get_docinfo_item(pdev, "/CreationDate", cre_date_time, sizeof(cre_date_time)); @@ -719,15 +719,18 @@ pdf_xml_tag_close(s, "rdf:Description"); pdf_xml_newline(s); - pdf_xml_tag_open_beg(s, "rdf:Description"); - pdf_xml_attribute_name(s, "rdf:about"); - pdf_xml_attribute_value(s, instance_uuid); - pdf_xml_attribute_name(s, "xmlns:xapMM"); - pdf_xml_attribute_value(s, "http://ns.adobe.com/xap/1.0/mm/"); - pdf_xml_attribute_name(s, "xapMM:DocumentID"); - pdf_xml_attribute_value(s, document_uuid); - pdf_xml_tag_end_empty(s); - pdf_xml_newline(s); + if (!getenv("GS_GENERATE_UUIDS") || (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 && strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0)) + { + pdf_xml_tag_open_beg(s, "rdf:Description"); + pdf_xml_attribute_name(s, "rdf:about"); + pdf_xml_attribute_value(s, instance_uuid); + pdf_xml_attribute_name(s, "xmlns:xapMM"); + pdf_xml_attribute_value(s, "http://ns.adobe.com/xap/1.0/mm/"); + pdf_xml_attribute_name(s, "xapMM:DocumentID"); + pdf_xml_attribute_value(s, document_uuid); + pdf_xml_tag_end_empty(s); + pdf_xml_newline(s); + } pdf_xml_tag_open_beg(s, "rdf:Description"); pdf_xml_attribute_name(s, "rdf:about"); 9f806d4f0d04cd2505d50efa1&showmsg=1'>Expand)Author 2021-04-20import: Remove Nix importer....This importer has suffered from bitrot and no longer works with current Nix and Nixpkgs. See <https://bugs.gnu.org/32339> and <https://bugs.gnu.org/36255>. * guix/import/snix.scm, guix/scripts/import/nix.scm, tests/snix.scm: Remove. * Makefile.am (MODULES, SCM_TESTS): Remove them. * guix/scripts/import.scm (importers): Remove "nix". * build-aux/test-env.in: Remove NIXPKGS variable. * configure.ac: Remove '--with-nixpkgs' option. * doc/guix.texi (Invoking guix import): Remove bit about "guix import nix". * etc/completion/fish/guix.fish: Likewise. Ludovic Courtès 2021-02-17scripts: system: Remove 'vm-image' command....Remove the 'vm-image' command that has been superseded by the 'image' command. * gnu/system/vm.scm (system-qemu-image): Remove it. * guix/scripts/system.scm (system-derivation-for-action): Mark 'vm-image' command as deprecated and use the image API to produce the VM image. (perform-action, show-help): Adapt accordingly. * tests/guix-system.sh: Ditto. * doc/guix.texi (Invoking guix system, Running Guix in a VM): Ditto. * etc/completion/fish/guix.fish: Ditto. * etc/completion/zsh/_guix: Ditto. Mathieu Othacehe 2020-05-13mailmap: Update entries for Nikita....* .mailmap: change email and name for Nikita. * Makefile.am, doc/guix.texi, etc/completion/fish/guix.fish, gnu/packages/accessibility.scm, gnu/packages/admin.scm, gnu/packages/audio.scm, gnu/packages/autotools.scm, gnu/packages/cdrom.scm, gnu/packages/check.scm, gnu/packages/cinnamon.scm, gnu/packages/compression.scm, gnu/packages/crypto.scm, gnu/packages/databases.scm, gnu/packages/django.scm, gnu/packages/dns.scm, gnu/packages/elixir.scm, gnu/packages/emacs-xyz.scm, gnu/packages/emacs.scm, gnu/packages/enlightenment.scm, gnu/packages/erlang.scm, gnu/packages/fonts.scm, gnu/packages/fontutils.scm, gnu/packages/forth.scm, gnu/packages/fvwm.scm, gnu/packages/games.scm, gnu/packages/gl.scm, gnu/packages/gnome.scm, gnu/packages/gnunet.scm, gnu/packages/gnupg.scm, gnu/packages/gtk.scm, gnu/packages/guile-wm.scm, gnu/packages/guile-xyz.scm, gnu/packages/haskell-apps.scm, gnu/packages/haskell-check.scm, gnu/packages/haskell-crypto.scm, gnu/packages/haskell-xyz.scm, gnu/packages/haskell.scm, gnu/packages/image-viewers.scm, gnu/packages/image.scm, gnu/packages/irc.scm, gnu/packages/language.scm, gnu/packages/libcanberra.scm, gnu/packages/linux.scm, gnu/packages/lisp-xyz.scm, gnu/packages/lisp.scm, gnu/packages/lolcode.scm, gnu/packages/lxde.scm, gnu/packages/lxqt.scm, gnu/packages/mail.scm, gnu/packages/markup.scm, gnu/packages/mate.scm, gnu/packages/maths.scm, gnu/packages/mc.scm, gnu/packages/messaging.scm, gnu/packages/music.scm, gnu/packages/ncurses.scm, gnu/packages/networking.scm, gnu/packages/nickle.scm, gnu/packages/openbox.scm, gnu/packages/pdf.scm, gnu/packages/perl-check.scm, gnu/packages/perl.scm, gnu/packages/python-compression.scm, gnu/packages/python-crypto.scm, gnu/packages/python-web.scm, gnu/packages/python-xyz.scm, gnu/packages/python.scm, gnu/packages/qt.scm, gnu/packages/ruby.scm, gnu/packages/rust.scm, gnu/packages/scheme.scm, gnu/packages/serialization.scm, gnu/packages/shells.scm, gnu/packages/ssh.scm, gnu/packages/suckless.scm, gnu/packages/tbb.scm, gnu/packages/telephony.scm, gnu/packages/text-editors.scm, gnu/packages/textutils.scm, gnu/packages/time.scm, gnu/packages/tls.scm, gnu/packages/tor.scm, gnu/packages/version-control.scm, gnu/packages/video.scm, gnu/packages/vim.scm, gnu/packages/web.scm, gnu/packages/wm.scm, gnu/packages/xdisorg.scm, gnu/packages/xfce.scm, gnu/packages/xml.scm, gnu/packages/xorg.scm, gnu/services/certbot.scm, gnu/services/desktop.scm, gnu/services/version-control.scm, gnu/services/web.scm, guix/import/hackage.scm, guix/licenses.scm: Likewise. Signed-off-by: Efraim Flashner <efraim@flashner.co.il> nikita