# I seem to have built SWI-Prolog without support for PceEmacs **URL:** \ **Category:** Tools\ **Created:** [November 4, 2020, 3:49pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223 "2020-11-04T15:49:22Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Nicholas\_Hubbard](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@Nicholas\_Hubbard](https://swi-prolog.discourse.group/u/Nicholas_Hubbard)\ **Post date:** [November 4, 2020, 3:49pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/1 "2020-11-04T15:49:22Z")
I built SWI-Prolog on my Linux computer (openSUSE Tumbleweed) by running these exact commands: ``` git clone https://github.com/SWI-Prolog/swipl-devel.git cd swipl-devel git submodule update --init cd swipl-devel mkdir build cd build cmake -DCMAKE_INSTALL_PREFIX=/usr/local/logic .. make ctest -j 4 sudo make install ``` I passed every test from the `ctest -j 4` command. Now when I start swipl and run `emacs.` I get this error: `ERROR: Unknown procedure: emacs/0 (DWIM could not correct goal)`. On my previous install of SWI-Prolog I had once tried to use PceEmacs and gotten this same error but didn’t think much of it and moved on. That was several months ago. The only information I can find on this error is from [this Stack Overflow post](https://stackoverflow.com/questions/56728053/launching-pceemacs-through-swi-prolog-command-line), which doesn’t actually provide a solution to the problem. Please let me know what I can do. ---
**Author:** ![EricGT](https://avatars.discourse-cdn.com/v4/letter/e/f1d935/32.png) [@EricGT](https://swi-prolog.discourse.group/u/EricGT)\ **Post date:** [November 4, 2020, 3:58pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/2 "2020-11-04T15:58:17Z")
Not that I know the exact file that is missing, Jan W. will know, but what does the following Prolog predicate return? ```prolog check_installation. ``` A valid result can be seen in this [post](https://swi-prolog.discourse.group/t/building-swi-prolog-on-ubuntu-20-04-from-source-how-sensitive-is-cmake-to-dcmake-install-prefix/3115/3). ---
**Author:** ![Nicholas\_Hubbard](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@Nicholas\_Hubbard](https://swi-prolog.discourse.group/u/Nicholas_Hubbard)\ **Post date:** [November 4, 2020, 4:02pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/3 "2020-11-04T16:02:28Z")
``` @?- check_installation. % Checking your SWI-Prolog kit for common issues ... % % Version: ............. 8.3.10-10-gc2e4524a3 % Address bits: ........ 64 % Architecture: ........ x86_64-linux % Installed at: ........ /usr/local/logic/lib/swipl % Cores: ............... 8 % % Checking tcmalloc ............................ not present Warning: See http://www.swi-prolog.org/build/issues/tcmalloc.html % Checking gmp ................................. ok % Loading library(archive) ..................... ok % Supported filters: bzip2, compress, gzip, grzip, lrzip, lzip, lzma, lzop, none, rpm, uu, xz % Supported formats: 7zip, ar, cab, cpio, empty, gnutar, iso9660, lha, mtree, rar, raw, tar, xar, zip % Loading library(cgi) ......................... ok % Loading library(crypt) ....................... ok Warning: library(bdb) .......................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/bdb.html % Loading library(double_metaphone) ............ ok % Loading library(filesex) ..................... ok % Loading library(http/http_stream) ............ ok % Loading library(http/json) ................... ok % Loading library(http/jquery) ................. ok % jQuery from /usr/local/logic/lib/swipl/library/http/web/js/jquery-1.11.3.min.js % Loading library(isub) ........................ ok Warning: library(jpl) .......................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/jpl.html % Loading library(memfile) ..................... ok Warning: library(odbc) ......................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/odbc.html Warning: library(pce) .......................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/xpce.html % Loading library(pcre) ........................ ok % Loading library(pdt_console) ................. ok % Loading library(porter_stem) ................. ok % Loading library(process) ..................... ok % Loading library(protobufs) ................... ok Warning: library(editline) ..................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/editline.html % Loading library(readline) .................... ok % Loading library(readutil) .................... ok % Loading library(rlimit) ...................... ok % Loading library(semweb/rdf_db) ............... ok % Loading library(semweb/rdf_ntriples) ......... ok % Loading library(semweb/turtle) ............... ok % Loading library(sgml) ........................ ok % Loading library(sha) ......................... ok % Loading library(snowball) .................... ok % Loading library(socket) ...................... ok % Loading library(ssl) ......................... ok % Loading library(crypto) ...................... ok % Loading library(syslog) ...................... ok % Loading library(table) ....................... ok % Loading library(time) ........................ ok % Loading library(tipc/tipc) ................... ok % Loading library(unicode) ..................... ok % Loading library(uri) ......................... ok Warning: library(uuid) ......................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/uuid.html % Loading library(zlib) ........................ ok Warning: library(yaml) ......................... NOT FOUND Warning: See http://www.swi-prolog.org/build/issues/yaml.html Warning: Found 8 issues. true. ``` ---
**Author:** ![Nicholas\_Hubbard](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@Nicholas\_Hubbard](https://swi-prolog.discourse.group/u/Nicholas_Hubbard)\ **Post date:** [November 4, 2020, 4:22pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/5 "2020-11-04T16:22:07Z")
I rebuilt with ``` cmake -DCMAKE_INSTALL_PREFIX=/usr .. ``` and still have the same problem. I will now work on making sure I have everything that you listed installed, and then will build once again. ---
**Author:** ![EricGT](https://avatars.discourse-cdn.com/v4/letter/e/f1d935/32.png) [@EricGT](https://swi-prolog.discourse.group/u/EricGT)\ **Post date:** [November 4, 2020, 4:24pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/6 "2020-11-04T16:24:38Z")
Sorry for not having the correct answer the first time but as I noted I am also learning the ropes of building SWI-Prolog. After thinking about it, the Dockerfile build is for a basic server that does not have all of the GUI bells and whistles, e.g. PCE. If I am correct, the answer was in the output of `check_installation.` which is to see `https://www.swi-prolog.org/build/issues/xpce.html` > **[Issues with library(pce)](https://www.swi-prolog.org/build/issues/xpce.html)** which notes ```prolog apt-get install swi-prolog-x ``` * * * I did not know those pages existed until using the URL from [check\_installation/0](https://www.swi-prolog.org/pldoc/doc_for?object=check_installation%3Acheck_installation/0), then found many such pages. ---
**Author:** ![Nicholas\_Hubbard](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@Nicholas\_Hubbard](https://swi-prolog.discourse.group/u/Nicholas_Hubbard)\ **Post date:** [November 4, 2020, 4:30pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/7 "2020-11-04T16:30:34Z")
ok I will try to figure out how to install `swi-prolog-x` onto my distribution. There seems to be nice instructions in the manual page you linked. ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [November 4, 2020, 4:41pm UTC](https://swi-prolog.discourse.group/t/i-seem-to-have-built-swi-prolog-without-support-for-pceemacs/3223/8 "2020-11-04T16:41:04Z")
> [@Nicholas\_Hubbard](#): > > `swi-prolog-x` That is when you install from the package manager. The Docker list of dependencies is one start, the other is (Debian based) [https://www.swi-prolog.org/build/Debian.html](https://www.swi-prolog.org/build/Debian.html) or (Fedora based) [SWI-Prolog on Redhat (Fedora, RHEL, CentOS)](https://www.swi-prolog.org/build/Redhat.html) You need library(pce) for the tools. You probably also want library(editline) for the command line editing. The other reported problems are optional components.